We're Hiring a **Full Stack Engineer | Earn up to $5000/monthLocation**: Ireland

**About the Role**

Join a global team helping train and improve the next generation of AI systems. You’ll use your writing and analytical skills to create, review, and refine high-quality data that helps AI models learn to think and respond more like humans.

**What You’ll Do**

*   Create and edit written content to help train AI systems.
*   Review and rate AI-generated responses for accuracy and quality.
*   Write prompts and feedback that improve AI reasoning and communication.
*   Work on a variety of projects based on your skills and interests.

**Who We’re Looking For**

*   Bachelor’s degree or currently pursuing one.
*   Strong English reading and writing skills.
*   Detail-oriented and analytical thinker.
*   Comfortable working independently and meeting deadlines.

**Why Join Us**

*   Earn competitive pay with performance-based bonuses.
*   Work anytime, anywhere - fully remote and flexible schedule (5–40 hrs/week).
*   Get access to advanced AI tools and learning opportunities.
*   Be part of a global network shaping the future of AI.

This is your chance to join the AI revolution - flexible, meaningful, and rewarding work awaits!

**Apply Now!**

Full Stack Engineer (Remote)

**About Euphoric**

Euphoric builds AI-first employee benefits administration software for the world’s largest and most prestigious employers. Born out of Peppy Health — a fast-growing, category-defining Series B startup — we spun out in May 2025 to tackle a far bigger opportunity.

Global employers spend $3–5 trillion on benefits every year. It’s their second-largest cost after payroll — yet the entire category is still running on legacy systems and outdated assumptions. The space is primed for transformation: despite its scale, it’s been almost completely overlooked by AI-first startups. Incumbents — including one U.S. heavyweight with $2B+ in annual revenue — are constrained by archaic tech stacks and can’t move fast enough to innovate.

And this isn’t just a massive market — it’s genuine “tech for good.” Smarter benefits administration, richer analytics, and clearer communication have the power to directly improve the everyday lives, wellbeing, and financial security of millions of employees worldwide.

We’re a sharp, high-velocity team with bold ambitions, obsessed with building category-defining technology and partnering with exceptional people who want their work to truly matter.

We closed our seed round in October 2025 and are building from a position of strength with a long cash runway.

**The Role**

We are looking for a Lead AI Engineer to drive the technical evolution of our AI-first platform and serve as our resident expert. You won't just be tuning hyperparameters in a notebook; you will be a core software engineer architecting the complex systems that make AI useful in production.

In the immediate future, your time will be split between crafting complex AI processing architectures (40%) and hands-on data/backend engineering (40%), with the rest spent doing whatever is needed to ship. As we mature, your focus will shift toward closing the loop: using real-user data to optimize the platform via online evaluation and targeted, data-driven models.

**What You’ll Do**

*   **Architect & Engineer AI Systems:** You won’t just call an API; you will build robust processing architectures that leverage off-the-shelf LLMs, RAG pipelines, and context engineering to solve hard problems. You will benchmark these systems rigorously to ensure they actually work, not just "feel" smart.
*   **Build the Backend Foundation:** You will spend significant time in Python (FastAPI, SQLAlchemy) building the APIs, data structures, and services that power the product. You are an engineer who ensures the "AI" is delivered on reliable, production-grade rails.
*   **Close the Data Loop:** As we launch, you will lead the transition from "zero-shot" implementations to data-driven optimization. You will instrument data collection, design online evaluation metrics, and deploy simple, effective ML models (e.g., logistic regression, boosted trees) to optimize user outcomes based on real feedback.
*   **Be a "Full Stack" Partner:** While the backend/data is your home, you are willing to jump into the frontend (React/TS) to implement features (AI or not) or debug an integration. You understand that an algorithm isn’t "done" until the user interacts with it successfully.
*   **Mentor & Lead:** You will work alongside full-stack engineers, upskilling the team on AI concepts and best practices. You are the "from-the-trenches" expert who helps the team distinguish between Twitter hype and engineering reality.
*   **Strategic Advising:** You will help Product and Leadership navigate the map of what’s valuable and what’s possible, steering the roadmap toward features that achieve business impact through data-driven optimization.

**Skills & Experience**

*   **Production Engineering (5+ years):** You are a strong software engineer first. You have extensive experience building and maintaining backend services in Python (ideally FastAPI or similar async frameworks) deployed to modern cloud providers (GCP/AWS) or point solutions (Railway, Render, Vercel)
*   **Applied AI Architecture:** You have built complex applications using Foundation Models / LLMs. You understand context window management, prompting strategies, and how to chain models together to achieve reliable results.
*   **True ML Fundamentals:** You aren't limited to APIs. You have a background in training and evaluating models (TensorFlow/PyTorch/Keras/Scikit-learn) and know when a simple classifier is better than a generative model.
*   **Data Fluency:** You understand how to build datasets from scratch (bootstrapping, crowdsourcing) and how to evaluate them (cross-validation, precision/recall, business metrics).
*   **Team-Oriented Mindset:** Strong communication skills for explaining complex ideas to technical and non-technical audiences, and a passion for collaborating within cross-functional teams.
*   **Passion and Pride in Shipping:** A do-whatever-it-takes attitude to deliver against important business goals that help the entire team win.
*   **Pragmatic Best Practices:** An overarching desire to build efficient, scalable, and maintainable code, while managing the tradeoffs between technical debt and delivery speed. You’d rather ship a heuristic that solves the user's problem today than a perfect model two weeks late.

**What We Look For**

We’re a great bunch but we have some "Euph" cultural non-negotiables. To do well here you will:

*   Thrive in fast-paced, feedback-rich environments
*   Take your work seriously, but not yourself
*   Be proactive, playful, and deeply curious
*   Want to build something that matters
*   Be willing to “do what it takes”

**What You’ll Get**

*   Base salary between £125k-£140k
*   Remote-first setup with optional shared work space passes and a hub in London
*   Apple devices and the best AI tooling
*   Private healthcare via Vitality
*   3% employer pension contribution (min 3% employee contribution)
*   Meaningful early-stage share opportunities
*   25 days holiday per year, plus bank holidays.
*   Career rocket fuel - real growth, real ownership, real impact

**Ready to Join?**

Hit “apply” and tell us why.

Lead AI Engineer

**Meet Siena** Siena is the first intelligence layer for customer experience. We're creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn't just automate support; it powers shopping agents, builds persistent customer memory, generates actionable business insights, and creates empathetic interactions that feel human. We're transforming how businesses understand and connect with their customers, turning every interaction into intelligence that makes the next one better. **The team** We're a small, distributed team that punches way above our weight. Every person here has outsized impact because we've built leverage into everything we do. This philosophy makes us faster and, frankly, more fun to work with. If you're excited about building something that doesn't exist yet, keep reading. We're building agents that don't just respond to customers—they remember them, learn from every interaction, and connect experiences across channels. **About The Role** As a Full Stack Engineer at Siena, you’ll own projects end-to-end, developing and optimizing features within our AI-powered customer support automation platform. You’ll work closely with product and engineering teams, shaping our roadmap while building reliable, high-performance systems. This role is for engineers who love solving real-world problems, thrive in fast-moving environments, and take pride in shipping great products. **What You’ll Do**

*   Design, build, and maintain scalable features across the full stack (frontend, backend, and infrastructure).
*   Collaborate closely with Product to break down scope and deliver in iterative, high-impact releases.
*   Work on an AI-first product, integrating cutting-edge LLM capabilities into enterprise customer support workflows.
*   Solve complex engineering challenges, from optimizing API performance to refining microservices architecture.
*   Maintain and improve our cloud infrastructure (AWS) with a DevOps mindset.
*   Share knowledge and mentor teammates, fostering a strong engineering culture.

**Who You Are**

*   5+ years of software engineering experience in Node.js, React, TypeScript, and Express.
*   Solid experience with cloud environments (AWS – Fargate, Lambda, EC2, SQS).
*   Strong database skills with PostgreSQL and Redis.
*   Familiarity with CI/CD pipelines (CodePipeline, GitHub Actions, or similar).
*   Product-focused mindset—you think beyond just code and care about business impact.
*   Deep experience in microservices architectures and scalable systems.

**Bonus Points**

*   Experience with Next.js and LLM integrations.
*   Infrastructure as Code (CDK, Terraform).
*   Python programming skills.
*   Event-driven architecture experience.
*   Background in customer support software.

**Why Siena?**

*   Meaningful impact. Your work directly shapes our product and company.
*   Globally distributed team working at the bleeding edge of CX and AI.
*   Great salary plus the opportunity for equity or stock grants.
*   Learning budget. If you're growing, so are we.
*   The thrill of building something new. Join us at a stage where your contributions matter most.
*   AI-fluency. Make AI your second nature.
*   Tackle unsolved problems. We’re redefining how customer experience will look like in the next decades.

**Our values** The people who thrive here are curious, customer-obsessed, and take ownership without being asked. They fix problems first and explain later. They're direct about feedback—both giving and receiving it—because they care more about getting things right than being polite. They maintain high standards while moving at startup speed, and they build real relationships with teammates because they know that's how great work gets done. When things get tough, they adapt and keep pushing forward. **Our approach to AI** The people who thrive here treat AI like a natural extension of themselves. They've built their own ecosystem of agents - some for research, others for debugging, writing, analysis, or writing code. They know which AI works best for what problem. Everyone gets premium accounts (ChatGPT, Claude, Perplexity Pro, Cursor, Lovable) plus a quarterly budget for new tools. But the magic happens in how we share knowledge. Demo days where someone shows off a clever workflows. Slack threads about which model handles a specific use case better. Learning from each other's AI workflows. At Siena, we’re not just looking for people who can do a job. We’re looking for people who want to break boundaries, create the future, and reshape industries. If that’s you, we look forward to your application. _Siena provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities._

Senior Fullstack Engineer

**The AI orchestration of your wildest imagination.** n8n is the open workflow orchestration platform built for the new era of AI. We give technical teams the freedom of code with the speed of no-code, so they can automate faster, smarter, and without limits. Backed by a fiercely inventive community and 500+ builder-approved integrations, we’re changing the way people bring systems together and scale ideas for impact. Since our founding in 2019, we’ve grown into a diverse team of over 160 - working across Europe and the US, connected by a shared builder spirit and with our centre of gravity in Berlin. Along the way, we’ve:

*   Cultivated a community of more than 650,000 active developers and builders
*   Earned 145k+ GitHub stars, making us one of the world’s Top 40 most popular projects
*   Been ranked as one of Europe’s most promising privately held SaaS startups (4th in Sifted’s 2025 B2B SaaS Rising 100)
*   Raised $240m to date, from Sequoia’s first German seed to our recent $180m Series C - bringing us to a $2.5bn valuation
*   And are grateful for our 94 eNPS score (most companies would call 70 excellent)

That’s the company we’ve built. Now we’d love to see what _you_ can build. If you’re applying, try n8n out - whether you’re technical or not - and share a screenshot of your first workflow with us. The easiest place to start is here: app.n8n.cloud/register. We’re in a defining moment of an incredible journey. Come and build with us. As a Senior AI Engineer, you'll drive intelligent features that redefine how users build automations. You'll build AI-powered capabilities, from natural language input to smart suggestions, that make creating workflows faster and more intuitive. You'll collaborate across engineering, product, and design to bring generative AI and LLM-based enhancements into the core user experience. You'll improve existing AI integrations, develop new ones, and shape how AI powers our product. **You’ll work across the entire AI feature lifecycle:**

*   Architect and implement AI-powered capabilities: code generation, intelligent node creation, and workflow optimization
*   Integrate LLM APIs and embedding models for text-to-workflow and natural language code suggestions
*   Design and iterate on prompts to improve model output and user experience
*   Build internal tooling, evaluation benchmarks, and automated testing for AI components
*   Collaborate closely with other engineers to ensure AI features are reliable, performant, and scalable
*   Balance experimentation with impact: ship quickly while focusing on user value
*   Stay current with advances in LLMs, prompt frameworks, and developer tools - and bring those insights into our roadmap

**Requirements**

*   5+ years of experience building web-based products, ideally in B2B SaaS startups
*   Strong fullstack development skills with TypeScript, Node.js, and API design
*   Experience shipping AI-powered features in production with LLM APIs (OpenAI, Anthropic, etc.) and understanding of how to translate machine intelligence into user value. We're looking for experience building end-to-end systems.
*   Understanding of AI fundamentals: agent architectures, chat completion roles, embedding vectors, vector databases, and chunking strategies
*   Hands-on experience with prompt engineering, embedding models, and vector stores
*   A user-focused mindset: you care about delivering features that solve real problems
*   A bias for shipping and learning - fast iteration is second nature to you

**Bonus Points For**

*   Experience fine-tuning LLMs or working with retrieval-augmented generation (RAG) systems
*   Frontend experience using Vue or React
*   Technical writing or documentation contributions, especially around developer tools or AI
*   Experience with agent orchestration patterns and state management in multi-step AI systems
*   Knowledge of code quality evaluation metrics and context optimization techniques

_n8n is an equal opportunity employer and does not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, gender identity, age, marital status, veteran status, or disability status._ _We can sponsor visas to Germany; for any other country, you need to have existing right to work._ _**Our company language is English.**_ _You care about diversity and inclusion? We do too! Check out our_ _Diversity, Inclusion and Belonging initiatives at n8n_ _(__https://www.notion.so/n8n/Diversity-inclusion-and-belonging-n8n-c1bec2fff536422d868b1a438d990e35__)._ _**Location disclaimer:** If you see multiple job postings for the same role, it is most likely because we're hiring remotely for this role and posting in different locations to make sure every potential candidate can see the role. Please apply to the location you're the most likely to work from in the future._ **Benefits**

*   Competitive compensation 💸 – We offer fair and attractive pay.
*   Ownership 💪 – Our core value is to “empower others,” and we mean it—you’ll get a slice of n8n with equity.
*   Work/life balance 🏖️ – We work hard but ensure you have time to recharge:

*   Europe: 30 days of vacation, plus public holidays wherever you are.
*   US: 15 vacation days, 8 sick days, plus public holidays wherever you are.

*   Health & wellness 🩺 –

*   Europe: We provide benefits according to local country norms.\*
*   US: Multiple low-premium, low-deductible medical plans with coverage for individuals and families—plus a no-cost premium HDHP option with a pre-seeded HSA—along with dental and vision coverage.

*   Future planning 💰 –

*   Europe: We provide pension contributions according to local country norms.\*
*   US: 401(k) retirement plan with a 4% employer match.

*   Financial security 🛡️ –

*   Europe: We provide benefits according to local country norms.\*
*   US: Company-paid short-term and long-term disability insurance, plus life insurance to support you and your loved ones.

*   Career growth 📈 – We hire rising stars who grow with us! You’ll get €1K (or equivalent) per year to spend on courses, books, events, or coaching to level up your skills.
*   A passionate team 🤩 – We love our product, and we prove it with regular hackathons where we see who can build the coolest thing with it!
*   Remote-first 🌏 – Our team works remotely across Europe, with regular off-sites for team bonding. Some roles, like sales in the US, are hybrid—please check the job description.
*   Giving back 🤝 – We're big fans of open source, and you'll get $100 per month to support projects you care about.
*   AI enablement 🤖 – We believe in working smarter—everyone gets an unlimited AI budget to explore and use the best tools to boost productivity and creativity.
*   Transparency 🙏 – We all know what everyone’s working on, how the company is doing—the whole shebang.
*   An ambitious but kind culture 😍 – People love working here—our eNPS for 2024 is 94!
*   Country-specific details are provided in your contract.

Sr AI Engineer | Remote - Europe | TS/Vue/NodeJS

**Register here**! Camunda is the **leader in enterprise agentic automation, orchestrating complex business processes**, including high-value knowledge work, across agents, people, and systems. By creating production-ready, enterprise-grade agents with built-in governance, Camunda uniquely delivers trusted AI agents for business-critical processes. **Over 700 leading innovators like Atlassian, ING, and Vodafone, rely on Camunda** to slash time-to-value from months to days, boost operational efficiency, and elevate customer experiences. Camunda was named a _**Visionary**_ in the inaugural **2025 Gartner® Magic Quadrant™** for Business Orchestration and Automation Technologies (BOAT). **As a fully remote, global company, we’re rewriting the rules of modern business.** Named GP Bullhound’s 2024 Top 100 Next Unicorn list, certified as a **Great Place to Work**, and recognized by Flexa for true flexibility, we’re growing fast and looking for top talent to join our team. If you’re excited to do meaningful work and make real impact, keep reading, **this role could be the one you’ve been waiting for.About The Role** As a Software Engineer, Fullstack at Camunda, you’ll help shape our next-generation analytics product for process orchestration—building reliable, high‑throughput SaaS capabilities that turn massive data flows into clear insights and action. You’ll work end‑to‑end across Java services and React interfaces, collaborating closely with a talented global team to measure, improve, and scale performance and fault tolerance in real-world distributed systems. If you love learning fast, experimenting thoughtfully, and making meaningful, iterative improvements every day, this role is for you. _Curious about the kind of challenges you'll work on at Camunda? Watch this quick_ _30-minute talk_ _from our engineers to learn more about the new Camunda Exporter and how we’re solving complex problems at scale_ **What You’ll Be Doing**

*   Collaborate with reliability experts to measure, quantify, and clearly articulate the load, throughput, and performance characteristics of our analytics platform (Optimize), and translate findings into action.
*   Propose an iterative roadmap for performance and fault‑tolerance improvements based on metrics you’ve developed and a deep understanding of the product architecture and codebase.
*   Implement, validate, and roll out performance improvements in stages—profiling, tuning, and verifying impacts in production‑like conditions.
*   Design and build backend APIs (Java) and frontend dashboards (React) to retrieve, aggregate, and visualize analytics data from distributed data stores.
*   Create data exporters and connectors that enable third‑party BI tools to pull detailed analytics from multiple distributed instances, safely and efficiently.
*   Raise the engineering bar by contributing to code quality, test automation, observability, and collaborative design reviews.

**What You Bring**

*   Ability and/or willingness to use our product
*   3+ years as a full‑stack Software Engineer with strong production experience in Java and React.
*   Curiosity and resilience in distributed systems—eager to experiment, learn daily, and “break things on purpose” to improve robustness.
*   Interest and practical intuition for building high‑throughput SaaS platforms that process large, continuous data volumes.
*   Drive to design and build an enterprise‑grade analytics product—from data ingestion through aggregation to clear, insightful UIs.
*   Pragmatic, autonomous problem‑solver focused on measurable outcomes and continuous improvement, with a keen eye on performance and fault tolerance.
*   Willingness and ability to use Camunda products and approach reliability from a user’s perspective

**Nice-to-haves**

*   Experience with high‑throughput, low‑latency distributed SaaS products in production.
*   Hands‑on work with distributed data stores and practical trade‑offs related to the CAP theorem.
*   Opensearch/Elasticsearch experience including performance tuning
*   Exposure to modern cloud operations (e.g., Kubernetes, Operators, Helm charts), including monitoring and troubleshooting in production.
*   Experience with load testing and iterative tuning to improve reliability, throughput, and overall system performance.

C1 **CompensationWhat We Have to Offer:** We offer competitive, fair, and transparent compensation. Salary ranges are location-based, with Standard and Major markets (global tech hubs) reflecting local competition. **The Annual Total Target Cash** (base salary + 100% variable target, where applicable) shown below spans from the minimum in a Standard market to the maximum in a Major market. Final offers depend on **skills**, **experience**, and **location**, and we typically hire in the first half of the range to allow room for growth:

*   United States: $119,900.00 to $193,200.00
*   Germany: €77,400.00 to €128,100.00
*   United Kingdom: £75,300.00 to £123,800.00
*   Singapore: S$148,900.00 to S$223,300.00

If you’re based elsewhere, you’ll be hired via **Remote.com** (our global employer partner), and your Talent Acquisition Partner will provide a personalized **Total Rewards Calculator** after your first interview. **Equity:** We also offer equity (where applicable) through our **Virtual Stock Option Plan (VSOP)**. **Benefits & Perks** We invest in your wellbeing, growth, and ability to connect, along with perks that support you no matter where you’re based. Our benefits are globally designed and locally delivered where applicable.

*   Remote & Flexible: Work from anywhere with the setup that suits you, home office budget, co-working space support, and flexible time off to recharge when you need it.
*   In Person Connection: We invest in meaningful face time through our Annual Kickoff (Vienna in 2025, Madrid in 2026!), team offsites, and Camundi Connection Budgets, including contributing to meetups while travelling,, and local gatherings with fellow Camundi.
*   Health & Wellbeing: Access locally tailored healthcare, Modern Health for global mental wellbeing, and an annual fitness reimbursement.
*   Financial Security: Retirement and pension plans (often with company contributions), plus life and disability insurance where relevant.
*   Professional Growth: Up to $/€/£1,000 per year for self-driven learning: courses, certifications, books, you decide!
*   More of what we offer globally & in your country can be found here.

_”Everyone is welcome at Camunda”_ — _it’s a celebrated component of our culture. We strive to create an inclusive environment that empowers our people. At Camunda, we honour diverse cultures and backgrounds and are proud to be an equal opportunity employer. All qualified applicants will receive consideration without regard to gender, race, ethnicity, religion, belief, sexual orientation, age, disability or any other protected characteristics under applicable law. We are looking forward to your application!_ _**Come join us and be part of Camunda’s incredible journey: Make an impact at a pivotal moment in our story!**_

Software Engineer, Fullstack - Optimize and Analytics Integration

**Building the Future of Crypto** Our Krakenites are a world-class team with crypto conviction, united by our desire to discover and unlock the potential of crypto and blockchain technology. **What makes us different?** Kraken is a mission-focused company rooted in crypto values. As a Krakenite, you’ll join us on our mission to accelerate the global adoption of crypto, so that everyone can achieve financial freedom and inclusion. For over a decade, Kraken’s focus on our mission and crypto ethos has attracted many of the most talented crypto experts in the world. Before you apply, please read the Kraken Culture page to learn more about our internal culture, values, and mission. We also expect candidates to familiarize themselves with the Kraken app. Learn how to create a Kraken account here. As a fully remote company, we have Krakenites in 70+ countries who speak over 50 languages. Krakenites are industry pioneers who develop premium crypto products for experienced traders, institutions, and newcomers to the space. Kraken is committed to industry-leading security, crypto education, and world-class client support through our products like Kraken Pro, Desktop, Wallet, and Kraken Futures. **Become a Krakenite and build the future of crypto!Proof of workThe team** Join the Institutional Engineering Team, a core group responsible for building secure, high-performance systems that safeguard digital assets for institutional and enterprise clients. We design and deliver the next generation of crypto custody and settlement services, ensuring trust, transparency, and resilience at every layer of our platform. Our engineers are a globally distributed, mission-driven group focused on creating new, scalable services that form the backbone of our custody infrastructure — from key management and wallet orchestration to transaction pipelines and compliance systems. We combine deep backend expertise with a strong focus on security, reliability, and performance. The team thrives in a collaborative, transparent, and DevOps-oriented environment, where technical excellence and innovation come together to redefine how digital assets are protected and managed. If you’re passionate about secure system design, distributed architectures, and building solutions that truly matter in the crypto ecosystem, this is where you’ll make your impact. **The opportunity**

*   Collaborate with product managers, architects, and DevOps engineers to design and deliver secure, scalable, and high-performance custody solutions.
*   Build and maintain new backend microservices in TypeScript, Node.js, powering custody, staking, and wallet services.
*   Integrate with blockchain networks and external systems to support asset movements, transactions, and key management workflows.
*   Contribute to frontend applications built with React and Next.js, ensuring clear operational visibility and seamless user experience.
*   Develop event-driven systems using Kafka for real-time data processing and inter-service communication.
*   Write reusable, testable, and efficient code, maintaining high standards for performance, observability, and fault tolerance.
*   Collaborate across teams to design and optimize data models, APIs, and distributed architectures.
*   Participate in technical reviews, mentor other engineers, and take ownership of services throughout their full lifecycle — from RFCs and design to deployment and maintenance.

**Skills You Should HODL**

*   5+ years of professional experience in fullstack or backend engineering within high-scale, high-availability systems.
*   Expert-level proficiency in Node.js and TypeScript, with hands-on experience using NestJS or similar frameworks.
*   Deep understanding of microservices, event-driven architectures, and CQRS/DDD design patterns.
*   Proven ability to design and deliver RESTful APIs and asynchronous event-based communication systems.
*   Strong experience with SQL databases and schema design for performance and reliability.
*   Solid understanding of React and modern frontend best practices.
*   Deep knowledge of state management (React Query, Context API, custom hooks).
*   Experience with Next.js, Tailwind CSS, and component-driven architecture.
*   Hands-on experience with Docker, CI/CD, and observability tools such as Prometheus and Splunk.
*   Excellent collaboration and communication skills — capable of working effectively in distributed, cross-functional teams.

**Nice to haves**

*   Understanding of crypto protocols, staking mechanisms, and the broader blockchain technology ecosystem.
*   Experience with gRPC, Protocol Buffers.
*   Hands-on experience with Rust.
*   Background in financial systems, digital assets, and experience in custodial or other regulated environments

_This job is accepting ongoing applications and there is no application deadline._ _Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution._ _We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance._ Kraken is powered by people from around the world and we celebrate all Krakenites for their diverse talents, backgrounds, contributions and unique perspectives. We hire strictly based on merit, meaning we seek out the candidates with the right abilities, knowledge, and skills considered the most suitable for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgable about crypto! As an equal opportunity employer, we don’t tolerate discrimination or harassment of any kind. Whether that’s based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status or any other protected characteristic as outlined by federal, state or local laws. **Stay in the know** Follow us on Twitter Learn on the Kraken Blog Connect on LinkedIn Candidate Privacy Notice

Fullstack Engineer - Custody

**Meet Siena** Siena is the first intelligence layer for customer experience. We're creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn't just automate support; it powers shopping agents, builds persistent customer memory, generates actionable business insights, and creates empathetic interactions that feel human. We're transforming how businesses understand and connect with their customers, turning every interaction into intelligence that makes the next one better. **The team** We're a small, distributed team that punches way above our weight. Every person here has outsized impact because we've built leverage into everything we do. This philosophy makes us faster and, frankly, more fun to work with. If you're excited about building something that doesn't exist yet, keep reading. We're building agents that don't just respond to customers—they remember them, learn from every interaction, and connect experiences across channels. **About The Role** As a fullstack engineer at Siena, you’ll own projects end-to-end, developing and optimizing features within our AI-powered customer support automation platform. You’ll work closely with product, shaping our roadmap while building reliable, high-performance systems. Your code will power millions of monthly customer interactions across global brands, where reliability and speed directly impact business outcomes. If you love solving real-world problems, thrive in fast-paced environments, and take pride in shipping great products, this role is for you. **What You’ll Do**

*   Design, build, and maintain scalable features across the full stack (frontend, backend, and infra).
*   Collaborate with Product to break down scope into iterative, high-impact releases.
*   Integrate cutting-edge LLM capabilities into real enterprise workflows.
*   Work on an AI-first product, integrating cutting-edge LLM capabilities into enterprise customer support workflows.
*   Solve complex engineering challenges, from optimizing API performance to refining microservices architecture.
*   Maintain and improve our cloud infrastructure (AWS) with a DevOps mindset.
*   Exercise high agency and ownership—taking initiative, making decisions, and driving ideas to production.

**Who You Are**

*   3+ years building in Node.js, React, TypeScript, and Express.
*   Strong with PostgreSQL, Redis, and cloud environments (AWS: Fargate, Lambda, EC2, SQS).
*   Familiar with CI/CD (CodePipeline, GitHub Actions, or similar).
*   Experience with microservices and scalable systems.
*   Product-driven—you care about the impact of what you ship, not just the code.
*   AI-first—you live in Cursor, Claude Code and are comfortable orchestrating coding agents.
*   Naturally curious and proactive; you don’t wait for instructions, you create momentum.

**Bonus points**

*   Next.js, Python, or event-driven architectures.
*   Infra-as-code (Terraform, CDK).
*   Experience integrating with LLMs in production.
*   Event-driven architecture experience.

**Why Siena?**

*   Meaningful impact. Your work directly shapes our product and company.
*   Globally distributed team working at the bleeding edge of CX and AI.
*   Great salary plus the opportunity for equity or stock grants.
*   Learning budget. If you're growing, so are we.
*   The thrill of building something new. Join us at a stage where your contributions matter most.
*   AI-fluency. Make AI your second nature.
*   Tackle unsolved problems. We’re redefining how customer experience will look like in the next decades.

**Our values** The people who thrive here are curious, customer-obsessed, and take ownership without being asked. They fix problems first and explain later. They're direct about feedback—both giving and receiving it—because they care more about getting things right than being polite. They maintain high standards while moving at startup speed, and they build real relationships with teammates because they know that's how great work gets done. When things get tough, they adapt and keep pushing forward. **Our approach to AI** The people who thrive here treat AI like a natural extension of themselves. They've built their own ecosystem of agents - some for research, others for debugging, writing, analysis, or writing code. They know which AI works best for what problem. Everyone gets premium accounts (ChatGPT, Claude, Perplexity Pro, Cursor, Lovable) plus a quarterly budget for new tools. But the magic happens in how we share knowledge. Demo days where someone shows off a clever workflows. Slack threads about which model handles a specific use case better. Learning from each other's AI workflows. At Siena, we’re not just looking for people who can do a job. We’re looking for people who want to break boundaries, create the future, and reshape industries. If that’s you, we look forward to your application. _Siena provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities._

Fullstack Software Engineer

**👀 TL;DR**

*   Elite team of FE engineers building complex AI accounting & fintech product
*   Huge momentum, growing fast, huge product & AI roadmap
*   High-speed development - one of the fastest teams on the planet
*   Comp: $70k-$145k USD base + $40k USD equity ($110k-$185k USD total)
*   Raised $90M Series A from Lightspeed, Khosla and Google Ventures
*   Remote with in-person meetups & daily New York EST timezone overlap
*   Founders built & exited prior company at $100M ARR and 300+ people

**Why This Role Matters Now**

We’re growing our Engineering team and hiring our next Frontend Engineer to increase our product velocity, own features end-to-end and bring DualEntry’s AI-powered accounting platform to the world’s fastest-growing companies.

**About DualEntry**

Founded in 2024, DualEntry is one of NYC’s fastest-growing AI startups, backed by top-tier VCs.

Our team previously built a $100M ARR business from scratch, scaled it to 300+ people, and led a successful exit. Now, we’re building a category-defining SaaS product to automate and modernize enterprise accounting - one of the most painful and outdated workflows in finance.

**We move fast**, build with precision, and care deeply about what we ship.

📍 **Location:** Remote-first with overlap to US EST working hours (HQ in NYC)

**Where You’ll Create Impact**

*   Build, ship, and own major parts of the product UI in React + Next.js
*   Design and optimize interactive experiences that make complex workflows simple
*   Work closely with product, design, and backend to ensure seamless integration and clarity
*   Contribute to architecture, performance, accessibility, and responsiveness across browsers
*   Help define our frontend system and component library as we scale
*   Elevate the quality of the product through thoughtful details, polish, and user empathy

**What Sets You Up for Success**

*   5+ years of experience in frontend development with React (Next.js a strong plus)
*   Solid grasp of JavaScript and TypeScript: scoping, closures, context, prototypes, classes, etc.
*   Strong understanding of responsive UI, accessibility, and usability principles
*   Experience building and testing APIs; comfort with HTTP, Postman, and debugging
*   Clear product thinking, eye for polish, and attention to design details
*   Pragmatic mindset: you move forward, make calls, and optimize for impact
*   Curiosity and autonomy

**Why You’ll Thrive Here**

*   You’ll own large parts of the UI in a fast-growing product
*   You’ll work closely with experienced founders who value product and engineering equally
*   You’ll have freedom to do your best work, with a team that moves fast and thinks clearly

**Compensation & Benefits**

*   Base salary: $70K–$145K USD
*   Equity: ~$40K+ USD
*   Option for B2B or full-time permanent position
*   Remote-first setup
*   15 PTO days + 12 public holidays
*   Visa sponsorship option for relocation to NYC within 2+ years
*   High-trust, high-autonomy team with real ownership

If you're looking to work on meaningful product challenges, ship product incredibly fast, contribute to a clean and ambitious codebase, and help shape how AI becomes usable at scale - we’d love to hear from you.

Frontend Engineer (React, Mid-Level)

**Job Title:** Frontend Angular Developer

**Salary:** £55,000 – £65,000

**Location:** Remote (UK)

We’re working with an innovative software provider seeking a **Frontend Angular Developer** to join their team building cutting-edge multi-platform applications.

**Key Skills & Experience:**

*   3+ years Angular, ideally **17+**, with **signal-based reactivity**, standalone components, and optimized change detection
*   Unit testing (**Jest**, **Jasmine/Karma**)
*   Cross-platform development: **PWA**, **Capacitor**, **Electron/Tauri**; mobile plugins (Swift/Kotlin) a plus
*   GraphQL & real-time data (**Apollo Client**, subscriptions, WebSockets, caching strategies)
*   **TypeScript, HTML/CSS/SCSS, Tailwind, Git, Nx**, accessibility/WCAG knowledge

**Benefits:**

*   Pension scheme
*   26 days holiday + bank holidays
*   Personal training/development budget
*   Fully remote (UK)

Angular Frontend Developer

**Full Stack Developer (UK – Remote)Location:** Remote within occasional international travel

**Type:** Full-time | Permanent

**Salary:** £45,000–£70,000 (depending on experience)

**Availability to start:** Ideally candidates available immediately or with short notice periods

We’re partnering with a fast-growing technology company that’s using data and cloud software to transform how organisations make decisions and engage their communities. They’re looking for a skilled Full Stack Developer to join their expanding team and help deliver modern, data-driven solutions used by clients across the UK and beyond.

This is an excellent opportunity for a mid-to-senior level developer who wants to take ownership of end-to-end projects, work with the latest Microsoft technologies, and contribute to products that make a measurable impact.

**The Role**

As a Full Stack Developer, you’ll play a key role in designing, developing, and maintaining software across the full application stack. You’ll collaborate with product, data, and delivery teams to implement new features, improve performance, and create great user experiences.

**Key Responsibilities**

*   Develop and maintain applications using C#, .NET, Angular, and TypeScript.
*   Translate user requirements into scalable, maintainable code.
*   Apply sound architecture and design principles (SOLID, DRY).
*   Build and support integrations with third-party APIs.
*   Contribute to code reviews, testing, and continuous delivery processes.
*   Produce clear technical documentation and support internal knowledge sharing.
*   Collaborate effectively with cross-functional teams in a remote environment.

**About You**

*   5+ years of professional experience developing in C#/.NET.
*   Strong understanding of object-oriented programming and modern development patterns.
*   Hands-on experience with Angular/TypeScript, SQL Server, and Azure DevOps (or similar tools).
*   Familiarity with cloud-native applications and CI/CD pipelines.
*   Excellent communicator with strong problem-solving and analytical skills.
*   Self-motivated, detail-oriented, and able to manage workload independently.

**What’s on Offer**

*   Competitive salary
*   Fully remote working within the UK, with flexibility and autonomy.
*   Health, wellness, and professional development support.
*   Opportunity to work with modern technologies in an innovative SaaS environment.
*   Be part of a forward-thinking team building technology that makes a difference.

Full Stack Engineer (Remote)

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