**Senior Support Engineer | £50,000 - £60,000** We're working with a design-led healthtech pioneer described as the "Apple of practice management" on this exciting opportunity. We are looking for a technical generalist who thrives at the intersection of engineering and customer success, using a modern Ruby on Rails and React stack to solve real-world problems for thousands of doctors. If you are a Developer who loves the "detective work" of debugging and wants to see your code fixes deployed to production daily to help patients and providers, this remote-first role offers massive autonomy and impact. **The Role**

*   Investigate and resolve complex technical bugs raised by the support team using Ruby on Rails 7 and PostgreSQL.
*   Ship small-to-medium product enhancements and logic tweaks directly to the production environment.
*   Write and execute Ruby scripts and background jobs for critical post-migration data cleanup and updates.
*   Collaborate directly with Full Stack Engineers and Support Specialists to triage and prioritize the product roadmap.
*   Act as a technical bridge, translating complex engineering issues into friendly, fluent communication for non-technical users.

**What You'll Need**

*   Strong commercial experience with Ruby on Rails (specifically Rails 7 and Ruby 3.4).
*   Proficiency in modern frontend technologies including React, TypeScript, and JavaScript.
*   Hands-on experience with PostgreSQL and writing performant database queries.
*   Professional comfort in a Linux-based cloud environment, specifically using AWS ECS and the command line.
*   Proven debugging and troubleshooting skills—you enjoy digging into the root cause of an issue rather than just applying a band-aid.

**What's On Offer**

*   Fully remote working model with a "calm" company culture that respects deep work and autonomy.
*   Beautiful London riverside office available for those who prefer in-person collaboration or hybrid flexibility.
*   The opportunity to work on a profitable, bootstrapped product that facilitates healthcare for hundreds of thousands of patients.
*   Competitive salary and a direct seat at the table in a small, high-performing engineering team of six.

**Apply via Haystack today!**

Senior Support Engineer

**Mid Level JavaScript Developer | £40,000 - £45,000** We're working with an innovative iGaming powerhouse on this exciting opportunity to build the next generation of web and mobile games. If you are passionate about high-performance JavaScript and want to see your code come to life in a fast-paced, creative environment using Pixi.js and modern ES6+, this is the role for you. Join a collaborative team where you will bridge the gap between technical logic and visual excellence, working alongside world-class artists and designers to deliver seamless gaming experiences to a global audience. This is a fully remote role offering the chance to level up your skills in technical troubleshooting, unit testing, and agile game development. **The Role**

*   Develop and maintain highly interactive mobile and web-based games using JavaScript and Pixi.js.
*   Collaborate directly with designers and project managers to optimize game performance and user engagement.
*   Write clean, maintainable code following ES6+ standards including Classes, Promises, and modern design patterns.
*   Support the implementation of robust Unit Tests and automated testing to ensure a bug-free gaming experience.
*   Contribute to the full software development lifecycle within an Agile framework, from initial briefing to final deployment.

**What You'll Need**

*   Commercial experience with JavaScript (ES6+), HTML5, CSS3, and JSON handling.
*   Hands-on experience with game engines or rendering libraries such as Pixi.js, Phaser, or Three.js.
*   Proficiency with Git version control and a solid understanding of front-end architecture.
*   A problem-solving mindset with the ability to debug complex technical issues and participate in code reviews.
*   Bonus points for experience with Node.js, automated testing frameworks, or a degree in Computer Science.

**What's On Offer**

*   100% remote working flexibility with a supportive, digital-first culture.
*   Strong focus on work-life balance with 25 days holiday, bank holidays, and your birthday off.
*   Comprehensive financial security including a Standard Life pension, life cover (2x salary), and access to employee share schemes.
*   Holistic wellbeing package featuring healthcare savings, support services, and extensive retail/travel discounts.

**Apply via Haystack today!**

JavaScript Developer

**Position:** Software Engineer **Type:** Contractor **Compensation:** $50 - $120/hour **Location:** Remote **Role Responsibilities**

*   Design and develop scalable backend and frontend features using Python, Node.js, React, and GoLang.
*   Architect, deploy, and maintain cloud infrastructure on AWS to support high-performance AI agent applications.
*   Collaborate closely with cross-functional stakeholders to deliver robust, production-ready software solutions.
*   Integrate and optimize workflows for large language models (LLMs) as part of advanced AI agent training initiatives.
*   Conduct comprehensive code reviews and provide mentorship to team members for continuous improvement.
*   Troubleshoot and resolve complex technical challenges efficiently in a distributed environment.

**Requirements**

*   Have strong relevant experience in Python, Node.js, React, GoLang, and working with large language models (LLMs).
*   Have a proven track record deploying and managing applications on AWS cloud infrastructure.
*   Demonstrate exceptional written and verbal communication skills, showcasing clarity and attention to detail.
*   Have a demonstrated success in delivering scalable, maintainable software in collaborative, remote teams.
*   Possess a strong grasp of software design principles, version control (e.g., Git), and modern development methodologies.

**Application Process**

*   Easy Apply on LinkedIn
*   Check email for next steps
*   Participate in resume evaluation & interview stage

Full Stack Software Engineer | Remote

**JavaScript Developer, React focused, Product Engineer (Contract) | React, TypeScript, Node.js, AWS | Product-Led Delivery | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract**

We’re hiring multiple Senior Product Engineers (contractors) with strong frontend or full-stack capabilities to join a large-scale public sector transformation programme.

This role focuses on building modern, user-centric digital products as part of cross-functional teams spanning product, design, and engineering.

You’ll be working on high-impact platforms, delivering intuitive, scalable web applications used by a wide range of users.

This is a 6-month initial contract, ideal for engineers who combine strong frontend expertise with product thinking and a pragmatic approach to delivery.

**The Role | JavaScript Developer, React focused, Product Engineer (Contract) | React, TypeScript, Node.js, AWS | Product-Led Delivery | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract**

This is a hands-on product engineering role with a strong focus on frontend development and user experience.

You’ll be expected to:

*   Build modern web applications using React and TypeScript
*   Contribute across the stack where needed (Node.js backend services)
*   Work closely with product managers and designers to deliver user-focused features
*   Translate user needs into intuitive, high-quality UI experiences
*   Apply modern engineering practices including TDD, CI/CD, and component-driven development
*   Collaborate in cross-functional teams with a strong product mindset
*   Continuously improve code quality, performance, and usability
*   Contribute to design systems and scalable frontend architecture

This role suits engineers who are product-minded, collaborative, and care deeply about building high-quality user experiences.

**Technical Requirements | JavaScript Developer, React focused, Product Engineer (Contract) | React, TypeScript, Node.js, AWS | Product-Led Delivery | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract**

Strong, recent experience with:

*   React and modern frontend development (hooks, state management, component architecture)
*   TypeScript in production environments
*   Building scalable, maintainable frontend applications
*   Integrating with APIs and backend services
*   Node.js for backend or full-stack development (desirable)
*   Modern testing practices (unit, integration, end-to-end)
*   CI/CD pipelines and modern development workflows
*   Working in cross-functional, product-led teams

**Nice to Have**

*   Experience with design systems and component libraries
*   Exposure to accessibility (a11y) best practices
*   Experience working in public sector or regulated environments
*   Familiarity with cloud environments (AWS)

**Why This Contract Stands Out | JavaScript Developer, React focused, Product Engineer (Contract) | React, TypeScript, Node.js, AWS | Product-Led Delivery | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract**

*   £400-450 per day
*   Outside IR35
*   Fully remote within the UK
*   Long-term, stable programme of work
*   Opportunity to build meaningful, user-facing digital products
*   Strong product, design, and engineering collaboration
*   Modern engineering culture focused on quality and delivery

**This is not a pixel-perfect greenfield rebuild - it’s a real-world product engineering role where you’ll ship features that directly impact users, working within complex systems and delivering tangible outcomes.**

JavaScript Developer, React focused, Product Engineer (Contract) | React, TypeScript, Node.js, AWS | Product-Led Delivery | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract

React Native / Expo · Full-time · Remote (Can be in any country)

**About the role**

We’re a small team building a B2B SaaS product our customers rely on every day.

You’ll own the mobile app end-to-end, from early ideas through to what ships in production.

Most of your time will be spent building in React Native and Expo.

There’s no dedicated product or design layer. You’ll be involved in shaping what we build, how it

works, and how it feels to use.

We move fast, keep the team small, and expect people to take real ownership.

**What you’ll doOwn the mobile app**

● Lead development of our React Native and Expo app on iOS and Android

● Make decisions on architecture, structure, and tooling

● Ship features end-to-end and keep the app fast and reliable

**Shape what we build**

● Get involved early when we’re figuring out what to build

● Turn rough ideas into simple, usable product decisions

● Think through flows, edge cases, and the details that make the product feel solid

**Work across the stack when needed**

● Work comfortably in our monorepo across mobile, backend, and web

● Jump into backend or web code when it helps move things forward

● Build and maintain integrations across systems, especially around our Convex backend

**What we’re looking for**

● 5–8+ years of experience building software

● Strong experience shipping React Native or Expo apps to production

● Deep familiarity with the Expo ecosystem, including EAS, OTA updates, routing, and

native modules

● Solid TypeScript skills

● Comfortable working in a full-stack TypeScript codebase

● Experience building products used by customers day-to-day

**Nice to have:**

● Experience with Convex or similar realtime or event-driven systems

● Experience working on small, fast-moving teams

**How we work**

● You take ownership of problems end-to-end

● You’re comfortable making decisions without perfect information

● You know when to ask for input and when to move quickly

● You think about how the product works and feels in practice

● You write code you’d be comfortable maintaining long term

**Stack**

● React Native and Expo

● Convex

● React

● TypeScript

**What we offer**

● Competitive salary (125k-150k)

● Fully remote

● Small team with high ownership

● Direct impact on the product from day one

Senior Mobile Developer

**About Tailor** Tailor is pioneering Headless ERP technology — a new way for growing companies to design internal workflows that fit their business, not the other way around. Our platform combines the flexibility of modern developer tools with the power of enterprise-grade operations. We’re helping multi-channel retailers, manufacturers, and B2B businesses replace rigid systems with adaptive, composable infrastructure. If you care about solving complex real-world problems and building products that scale from first principles, you’ll fit right in. Lastly, we're a Y-Combinator backed startup and have recently closed our $37M USD Series A to accelerate the future of composable ERP. The Role We're looking for a Senior Frontend Engineer to join Tailor's Frontend Platform team full time. This role will focus on building delightful frontend experiences for developers, building on top of Tailor's platform. This includes our developer Console application and frontend framework, components and libraries. You'll work with our Core Platform teams in building user interfaces for platform features in Console and also the Forward Deployed teams in creating frontend applications used for delivering end-customer solutions. What you'll do

*   Build and improve Tailor's Console — the primary interface for developers configuring and managing their Tailor applications
*   Develop reusable UI components and design system primitives used across our platform and customer applications
*   Create frontend abstractions (AppShell) that accelerate how forward deployed teams deliver customer solutions
*   Collaborate with Platform teams based in Japan to ship features end-to-end
*   Shape the developer experience for engineers building on Tailor's platform
*   Contribute to architectural decisions around our React/TypeScript stack

Who you are

*   5+ years of professional frontend development experience
*   Deep expertise in React and TypeScript
*   Experience building design systems, component libraries, or developer-facing tools
*   Thoughtful perspectives on frontend architecture, state management, and developer experience
*   Comfortable working asynchronously across timezones (AU/JP/US)
*   You've shipped production software to real users and understand the difference between code and product
*   Experience building on headless/composable platforms or enterprise software
*   Terraform and Go experience is a plus, or you're excited to learn it

Location Remote, AU East Coast

Senior Frontend Engineer (Australia - AEST, Remote)

**🚀 We’re Growing Our Mobile Dream Team!**

Titles? Meh, we’re not big on them, but let’s call this one **Mobile Developer 😉**

As part of our international Mobile squad, you’ll craft tailor-made solutions that wow our clients. We’re hunting for a passionate Mobile Developer with a solid technical background. Your mission? Train, deploy, and put groundbreaking developments into action — and that’s just the beginning.

Here’s the deal:

*   You’ll tackle the unique challenges of Mobile-powered software alongside a team of brilliant minds.
*   You’ll dive into cutting-edge projects using the latest tech to push boundaries and make an impact.
*   Whether you prefer working from home or vibing with us at our offices, the choice is yours.
*   AGILE isn’t just a buzzword here — it’s how we roll. Multidisciplinary teams? Check. Full ownership of projects? Double check.

Ready to take on projects that matter, with a team that’s as passionate as you are? Let’s make it happen! 😊

**You will be responsible for:**

*   Develop projects from scratch with minimal supervision and in collaboration with the team.
*   Participate in architecture design and decision-making within a constructive and co-creation-driven environment.
*   Work following SOLID principles.
*   Play a key role in implementing best practices and writing clean, reusable code.
*   Stay up to date with the latest tools and technologies in the market.

**Requirements:**

*   At least 5 years of experience developing native iOS applications using Swift.
*   Strong knowledge of software architecture, clean code principles, and design patterns.
*   Strong knowledge of testing.
*   Experience with CI/CD implementation as an essential part of the software development process.
*   Nice to have: Experience with SwiftUI.
*   Highly valued: Experience developing native Android applications using Kotlin.
*   Familiarity with the app publishing process on the App Store.
*   Fluent in English (MANDATORY).
*   Passion for technology and software development.
*   Continuous learning mindset.
*   Team player.

**Benefits**

*   Salary determined by the market and your experience 🤑
*   Flexible schedule 35 Hours / Week 😎
*   Fully remote work (optional) 🌍
*   Flexible compensation (restaurant, transport, and childcare) ✌
*   Fully free health insurance, with a co-payment for dental services 🚑
*   Individual budget for training or equipment and free Microsoft certifications 📚
*   English lessons 🗽
*   Birthday day off 🌴🥳
*   Monthly bonus for electricity and Internet expenses at home 💻
*   Discount on gym plan and sports activities 🔝
*   Plain Camp (annual team-building event) 🎪
*   Extra perks: events attendance and speakers, welcome pack, baby basket, Christmas basket, discount portal for employees ➕ The pleasure of always working with the latest technological tools!

**Will you let us know you better?**

The selection process: Simple, just 3 steps.

*   Phone screen
*   2 interviews with the team 🤘

**What is Plain Concepts?**

Plain Concepts is a global company of over 500 people passionate about technology and innovation. Since our founding, we have grown through technical proficiency and confidence in ideas that others might consider risky, creating custom solutions for our clients. With offices in more than 6 countries, our mission is to continue to drive cuttingedge projects around the world.

We are highly committed to technical excellence. We are known for developing highly customized projects, offering specialized technical consultancy and training.

Thanks to the great work of our technicians, we have been recognized for our ability to lead innovative projects that generate value, from artificial intelligence to blockchain, driving solutions that help companies optimize their performance.

**What we do at Plain Concepts?**

We pride ourselves on being a 100% technical team, dedicated to crafting custom projects from scratch, offering expert technical consultancy, and providing top-tier training.

*   Our approach goes beyond traditional outsourcing; we focus on creating value together with our clients.
*   Our teams are diverse and multidisciplinary, operating in a flat, collaborative structure.
*   We live and breathe AGILE principles, ensuring flexibility and efficiency in everything we do.
*   Knowledge-sharing is at our core: from supporting each other internally to contributing to the broader tech community through conferences, events, and talks.
*   Innovation drives us — even the boldest ideas are welcome here.
*   Transparency underpins all our relationships, fostering trust and long-term partnerships.

**Want to learn more?**

Check out our website! ➡ https://www.plainconcepts.com/

At Plain Concepts, we certainly seek to provide equal opportunities. We want diverse applicants regardless of race, colour, gender, religion, national origin, citizenship, disability, age, sexual orientation, or any other characteristic protected by law.

Mobile Developer (iOS - Swift)

Descrizione azienda **MC Engineering è una dinamica società di consulenza informatica**, con sedi a Torino, Milano, Roma e Bari. Lavoriamo a stretto contatto con realtà innovative nel mondo ICT, portando avanti progetti che spaziano tra vari settori. Per noi, **le persone sono al centro di tutto**: puntiamo su un continuo aggiornamento, sulla crescita costante e sull’**eccellenza**, per affrontare insieme sfide innovative e fare la differenza nel nostro settore. Posizione **Front End Developer - ReactCosa farai con noi?** Come React Front End Developer avrai l’opportunità di lavorare su progetti stimolanti nel settore dell'automazione industriale (Material Handling), dove la tua esperienza e la tua professionalità non solo saranno fondamentali per il raggiungimento degli obiettivi prefissati, ma anche oggetto di un percorso di crescita disegnato con cura. Sarai sempre all'interno di un contesto attento e collaborativo, volto a creare soluzioni innovative e all’avanguardia. Svilupperai applicazioni web moderne e performanti, contribuendo alla creazione di interfacce utente di alto livello per soluzioni tecnologiche nel cuore dell'industria 4.0. Requisiti **Cosa cerchiamo in te?Formazione:** Laurea in Ingegneria Informatica, Informatica o discipline affini, oppure Diploma Tecnico con solida esperienza comprovata. **Esperienza:** Almeno 2+ anni di esperienza nello sviluppo front-end con React. **Competenze Principali**

*   Buona conoscenza di React (versioni 18-19).
*   Buona conoscenza di TypeScript e Node.js.
*   Buona conoscenza di Git per il versioning del codice.
*   Conoscenza almeno base di SQL e PostgreSQL.
*   Conoscenza di Docker (competenza gradita).

**Lingua Inglese** Buona conoscenza della lingua inglese **Modalità E/o Sede Di Lavoro** Posizione prevalentemente in **modalità remota**. Sono previste possibili presenze sporadiche presso la sede del cliente finale in **provincia di Milano**. **Completano Il Profilo**

*   Un'elevata attitudine al lavoro in team
*   Doti di precisione e flessibilità mentale
*   Capacità proattiva nella gestione delle problematiche professionali

Altre informazioni **Cosa Offriamo** Inserimento in organico con un inquadramento commisurato all’esperienza professionale pregressa e una retribuzione in linea con le reali capacità del candidato. Se sei una persona appassionata e desiderosa di crescere in un ambiente che promuove l’eccellenza, questa è l’occasione che fa per te! Unisciti a **MC Engineering**: dove le idee diventano innovazione! _Il presente annuncio è rivolto ad entrambi i sessi, ai sensi delle leggi 903/77 e 125/91, e a persone di tutte le età e tutte le nazionalità, ai sensi dei DLgs 215/03 e 216/03._

Front End Developer - React

**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** We are currently seeking an experienced Senior Software Engineer to join our growing Payments & Blockchain team to be focused on our payments systems. The Payments & Blockchain team is responsible for the first and last mile of every dollar (digital or fiat) that goes in our out of Kraken. Join our Payments team to help integrate Kraken’s systems with an ever-expanding universe of payment providers. As a member of this team, your focus is on protecting client funds. You will be responsible for building systems that communicate with various blockchains to enable the timely processing of client transactions, while also ensuring the safety and security of all funds on the exchange. **The opportunity**

*   Design, develop, and maintain high-quality payment processing systems using React.js and other relevant technologies
*   Build and refine seamless transaction experiences that optimize fund transfers for speed, security, and reliability
*   Ensure an efficient and intuitive onboarding experience for users interacting with payment systems, reducing friction and improving trust
*   Develop innovative features that enhance engagement, retention, and loyalty within the payments ecosystem
*   Set the standard for high-quality, secure code and lead the development of complex financial software systems
*   Influence technical decisions, contribute to strategy discussions, and shape product/domain decisions with a deep understanding of financial systems and security best practices
*   Mentor engineers, foster a culture of technical excellence, and drive process improvements in financial software development
*   Design and implement scalable, maintainable, and fault-tolerant financial systems, ensuring compliance and security best practices

**Skills You Should HODL**

*   6+ years of experience in software development, with a focus on web and mobile applications
*   Deep understanding of JavaScript/TypeScript and proficiency with React Native frameworks
*   Strong experience of API design, security, and performance optimization
*   Experience with Next.js and WebSockets
*   Experience with frontend testing frameworks
*   Familiarity with modern front-end build pipelines and tooling
*   Strong understanding of UI/UX best practices and principles
*   Experience within a large technology organization or fast growing startup
*   Hands-on experience in consumer payments, crypto or fintech mobile applications
*   Strong written and verbal communication skills in English
*   Available in EU afternoons

**Nice to haves**

*   Familiarity with native mobile app development (iOS/Android)
*   Knowledge of the cryptocurrency industry and blockchain technology

_Unless a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis._ _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! We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments are designed to evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Assessment results are considered alongside other relevant information, such as experience and interviews, and are not the sole basis for any employment decision. 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

Senior Software Engineer - React Native - Payments

I’m not looking for a developer. I’m looking for a **technical co-founder**.

I’m building **ÉCHO by RÉACLYSE** — a voice journaling app that records your thoughts over time and surfaces your own words back to you at moments of self-doubt or decision-making.

**The core mechanic:**

The AI never generates insights about the user. It identifies patterns across entries and returns their own words — verbatim, across time.

Pattern recognition, not generation. (Think: embeddings / semantic similarity / clustering — not LLM-generated outputs.) This constraint is central to the product and shapes the entire technical architecture.

**Where the product is today**

*   Full product concept defined (UX flows, feature spec, AI behaviour rules, subscription model)
*   No-code prototype built (React + TypeScript + Tailwind) — functional investor demo
*   Brand and go-to-market direction in place
*   Existing audience through the parent brand, RÉACLYSE

What’s missing is the **technical owner** to take this from prototype to product.

**What you’ll own**

*   Architecture and build of the mobile app (iOS-first) and backend
*   Core features:
*   voice recording
*   transcription (ideally on-device)
*   structured storage (audio + transcripts)
*   AI-powered pattern detection and entry retrieval (ÉCHO)
*   Technical decisions across stack, infrastructure, and data privacy (GDPR-compliant, European-first audience)
*   Product direction alongside the founder

**First 30–60 days (expected focus)**

*   Define MVP architecture and tech stack
*   Set up backend (auth, storage, data model)
*   Build voice → transcription → storage pipeline
*   Implement first version of ÉCHO retrieval logic (simple but working)

**The technical challenge**

The interesting work here is not recording or transcription — it’s the ÉCHO system:

Building a system that clusters themes across a user’s entries over time, identifies meaningful temporal connections, and surfaces the _right_ past entry at the _right_ moment — without ever generating new text.

This is essentially a **retrieval and ranking problem over deeply personal, unstructured data**, where relevance is contextual and evolves over time.

If that constraint feels interesting rather than limiting, this role is probably for you.

**What we’re building toward**

*   MVP live within 3–6 months
*   Early user cohort actively using the app
*   First subscription revenue within 12 months
*   Seed round once traction is established

**Who this is for**

*   Full-stack developer with mobile experience (React Native or Swift/Kotlin)
*   Comfortable building from scratch (0→1)
*   Experience with or strong interest in **NLP / embeddings / semantic search / lightweight ML systems**
*   Able to work independently and take ownership of decisions
*   Based in Europe or able to work within European time zones
*   Interested in building long-term (this is a co-founder role, not a contract)

**Commitment & compensation**

*   Equity at co-founder level (to be agreed)
*   No salary at this stage
*   Part-time possible initially → moving toward full-time as traction builds

**This is not the right fit if you:**

*   are looking for immediate compensation
*   prefer clearly scoped, structured roles
*   want a short-term project

**To apply**

Send:

*   a short note on why this interests you
*   what you’ve built (links / GitHub)

**Bonus:** if you already have thoughts on how you’d approach the ÉCHO feature, I’d love to hear them.

I’ll share the prototype in return — the product makes much more sense once you’ve seen it.

—

RÉACLYSE

\[hello@reaclyse.com\]

Technical Co-Founder (Equity) — AI Voice App | 0→1 Build

**This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Developer Relations P2P in France.** This role is focused on building strong bridges between developers and cutting-edge peer-to-peer (P2P) technologies, ensuring that developer communities can easily understand, adopt, and build with the platform. You will act as a key technical voice in the ecosystem, combining software engineering expertise with community engagement and developer advocacy. The position blends hands-on coding, technical storytelling, and ecosystem building across global developer communities. You will create high-impact content, demos, and prototypes that showcase real-world use cases of decentralized applications. Working closely with product and engineering teams, you will help shape developer experience, improve onboarding, and influence product direction. This is a highly visible role in a remote-first, fast-evolving environment where innovation, openness, and developer empowerment are central. Accountabilities In this role, you will serve as the primary connector between the developer community and internal teams, ensuring that developers are engaged, supported, and inspired to build on the P2P ecosystem. You will combine advocacy, education, and technical contribution to drive adoption and improve developer experience.

*   Build and nurture relationships with developers, open-source contributors, and technical communities
*   Engage with the ecosystem through AMAs, webinars, office hours, hackathons, and online forums
*   Collect, synthesize, and relay developer feedback to product and engineering teams
*   Create high-quality technical content such as tutorials, documentation, sample apps, and videos
*   Develop demos, prototypes, and reference implementations showcasing real-world P2P use cases
*   Support developer onboarding and education through workshops and training sessions
*   Advocate for the technology at conferences, meetups, and industry events
*   Collaborate with product, engineering, and marketing to improve developer experience and messaging
*   Contribute to roadmap discussions by sharing insights from the developer community

**Requirements** The ideal candidate is both a strong software engineer and an engaging communicator, capable of translating complex technical concepts into clear and compelling narratives. You have hands-on experience building applications and enjoy engaging with developer communities to improve tools and experiences.

*   Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience
*   3+ years of software development experience with production-level coding skills
*   Prior experience in Developer Relations, Developer Advocacy, or Technical Community roles
*   Strong expertise in JavaScript, TypeScript, and Node.js ecosystems
*   Experience building and maintaining web, mobile, or desktop applications
*   Proven ability to create technical content (blogs, tutorials, demos, documentation, videos)
*   Experience speaking at events such as meetups, webinars, or conferences
*   Strong understanding of developer experience principles and API usability
*   Familiarity with React Native and/or Electron is highly desirable
*   Experience engaging with developer communities via GitHub, forums, or social platforms
*   Excellent written and verbal communication skills in English
*   Bonus: contributions to open-source projects or experience with SDK/tooling design

**Benefits**

*   Competitive compensation aligned with global tech standards
*   Fully remote work with a global, distributed team
*   Opportunity to work on cutting-edge peer-to-peer (P2P) and decentralized technologies
*   High autonomy in shaping developer experience and community strategy
*   Direct collaboration with engineering and product teams on core platform evolution
*   Exposure to global developer ecosystems and industry events
*   Strong focus on innovation, open-source thinking, and experimentation
*   Professional growth in a highly technical and fast-moving environment

**How Jobgether Works** We use an **AI-powered matching process** to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! Why Apply Through Jobgether? **Data Privacy Notice:** By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Senior Support Engineer

Job Description

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Haystack

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