Senior / Lead Software Engineer (Frontend Mastery) | Synthesia

**Synthesia** is the global leader in Generative AI video, powering the communication strategies of over 50,000 customers, including 50% of the Fortune 500. Since 2017, we have pioneered in-house AI technology that is now the industry standard. We are seeking a high-caliber Senior or Lead Engineer with deep frontend expertise to spearhead the next evolution of our product interface.

**Your Impact & Strategic Ownership**

*   End-to-End Execution: Take charge of the full feature lifecycle, from our React client to the Python backend, ensuring every release is secure, high-performance, and impactful.
*   Complex UI Design: Architect sophisticated user interactions and responsive interfaces that make high-end AI video tools feel seamless and intuitive.
*   Technical Roadmap Leadership: Manage multi-month initiatives by translating high-level product visions into concrete, iterative technical milestones.
*   Product Strategy Partnership: Work as a peer to Product Managers. You are expected to provide the technical perspective that shapes the commercial success of our features.
*   Data-Informed Iteration: Leverage our robust data pipelines to analyze feature performance against business goals, allowing for rapid pivots based on real-world usage.
*   Engineering Foresight: Anticipate technical challenges 6–12 months in advance, building the core capabilities required to maintain our competitive advantage.

**Qualifications**

*   The Essentials: 7+ years of professional software engineering experience, including at least 3 years in a Senior or Lead capacity.
*   Proven Track Record: Success within high-velocity teams at top-tier scale-ups or tech organizations known for world-class engineering standards.
*   Frontend Mastery: A deep passion for complex UI and modern client-side stacks. While you are a Frontend specialist, you are happy to contribute to the backend (Python) to ensure project success.
*   Enterprise SaaS Background: Experience developing complex tools like real-time collaboration engines, video editors, or experimentation platforms.
*   Commercially Driven: You thrive in "no-politics" environments and are motivated by the measurable success of the products you build.
*   Leadership & Mentorship: Prior experience leading small engineering squads or mentoring junior talent is highly valued.

Frontend Developer

**Volunteer for a startup building climate-smart aquaculture for a food-secure future! 🐟Constantnople Enterprise** delivers AI-enabled HDPE fish cages that boost productivity, reduce pollution, and support sustainable aquaculture across Kenya and the broader African region.

Fish farmers often rely on traditional cage systems that lack real-time monitoring and durability, leading to high mortality rates and inconsistent yields. This inefficiency contributes to food insecurity and environmental degradation, as unmanaged systems can cause water pollution and feed waste. With climate change bringing temperature fluctuations and oxygen depletion, farmers need adaptive technology to protect their livelihoods and freshwater ecosystems.

Constantnople provides a high-tech circular solution by integrating durable High-Density Polyethylene (HDPE) cages with an AI-powered monitoring system. Our sensors track water quality parameters like dissolved oxygen and temperature in real time, while data analytics optimize feeding schedules to reduce waste and detect early signs of fish stress. By combining resilient physical infrastructure with digital intelligence, we empower farmers to increase productivity, improve survival rates, and promote responsible management of aquatic environments.

**Role (Volunteer, unpaid): Web Developer / Full-Stack DeveloperRole Description:**

*   Develop and maintain web applications and dashboards to display real-time sensor and farm data.
*   Integrate IoT devices and AI analytics into web platforms for actionable insights.
*   Collaborate with UI/UX designers to ensure user-friendly interfaces for farmers and stakeholders.
*   Optimize web performance, security, and scalability.
*   Implement features for subscription-based services, account management, and reporting.
*   Troubleshoot, debug, and improve existing web systems.
*   Work closely with ML/AI engineers to deploy predictive models on the web platform.

**Qualifications & Skills:**

*   Bachelor’s degree in Computer Science, Software Engineering, or related field.
*   Proficiency in HTML, CSS, JavaScript, React, Node.js, Python, or similar web technologies.
*   Experience with database management (MySQL, PostgreSQL, MongoDB) and cloud platforms.
*   Understanding of API integration, IoT data handling, and real-time dashboards.
*   Strong problem-solving, collaboration, and communication skills.
*   Experience in developing platforms for social impact or agriculture is a plus.

**Why Join Us:**

*   Work on an innovative, socially-driven tech solution for sustainable aquaculture.
*   Collaborate with a multidisciplinary team of engineers, aquaculture experts, and business developers.
*   Directly contribute to improving livelihoods, food security, and economic resilience for marginalized communities.

**Time Commitment: Volunteer 7-9 hours per week for 6+ months remotely 💻If you want to make change happen, apply to volunteer with Constantnople Enterprise now!**

Web Developer / Full-Stack Developer

**Full Stack Engineer - Azure, C#, .Net, React / ReactJS**

⭐ Outside IR35

⭐ 12 Month Contract

⭐ Fully Remote (UK only)

⭐ £400 - 450 Per Day

We're currently working with a London based MedTech company who are searching for a Full Stack Engineer who has extensive experience working with Azure, C#, .Net and React / ReactJS. This project will see you working alongside a small existing team of developers, adding additional capacity to make business critical updates and enhancement to their existing Azure based core platform, with the bulk of the work will focus on enhancing the workflow engine!

We are looking for an experienced Full Stack Engineer who is comfortable working on complex software platforms and is able to get up to speed quickly in new environments.

**Required Skills / Experience**

Extensive commercial experience with:

🔥 Azure - Azure Functions, Azure API Management, Azure Services, Azure B2C Directory, Azure Pipelines etc

🔥 React / ReactJS

🔥 C#

🔥 .Net / .Net Core

Commercial experience with:

🔥 MS Visual Studio

🔥 CI/CD

🔥 Microservices Architecture

🔥 NoSQL or Cosmos DB

🔥 Git

🔥 Agile / Scrum / Kanban

Any previous experience working within HealthTech, MedTech or Pharmaceutical environments is beneficial but not essential.

**_Important Notice:_**

Please note that due to the high volume of applications we receive, we are unfortunately unable to respond to all applicants. If you have not heard from us within 1 week of your application, please assume that you've not been successful on this occasion.

Both Leo Technology and the companies we partner with are incredibly passionate about building environments where people from all backgrounds and walks of life are embraced. Our mission is to welcome everyone and create inclusive teams. We celebrate difference and encourage people from all backgrounds to apply.

Leo Technology Limited is acting as an Employment Agency in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Leo Technology website

Full Stack Engineer

**.NET Developer, .NET 10.0, C# 14, Agile - Derby**

(Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer)

We are pleased to announce the arrival in the UK of one of Silicon Valley’s most successful and exciting brands. They’re at the heart of the Internet, helping the most innovative companies remove the complexities of delivering any experience, to any device, anywhere.

Having setup an R&D centre in the UK they are looking to hire several .NET Developer at all levels who are passionate about developing revolutionary software solutions. .NET Developer applicants should have commercial experience with: .NET, .NET Core, C#, Azure SQL and Agile. Full training will be provided into: .NET 10.0, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Node.js, Elasticsearch and MongoDB.

If you are dedicated to the youthful optimism of problem solving through intellectual curiosity, collaboration and commitment this could be the role for you. Our client is growing quickly. If you’d like to work in a culture where hard work and innovative ideas are consistently rewarded, join them and help shape the future of the hyperconnected world.

**Location**: Derby, UK / Remote Working

**Salary**: £45,000 - £60,000 + Bonus + Pension + Benefits

Applicants must be based in the UK and have the right to work in the UK even though remote working is available.

Noir continues to be the leading Microsoft recruitment agency; we can help you make the right career decisions!

NOIRUKNETREC

NOIRUKREC

NC/NET/DERET

.NET Developer - Derby

**We're transforming the grocery industry** At Instacart, we invite the world to share love through food because we believe everyone should have access to the food they love and more time to enjoy it together. Where others see a simple need for grocery delivery, we see exciting complexity and endless opportunity to serve the varied needs of our community. We work to deliver an essential service that customers rely on to get their groceries and household goods, while also offering safe and flexible earnings opportunities to Instacart Personal Shoppers. Instacart has become a lifeline for millions of people, and we’re building the team to help push our shopping cart forward. If you’re ready to do the best work of your life, come join our table. **Instacart is a Flex First team** There’s no one-size fits all approach to how we do our best work. Our employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work. **Overview** FoodStorm, part of Instacart, powers catering and prepared‑foods operations for major retailers. As an Engineering Manager, you will lead a team of full‑stack engineers responsible for FoodStorm’s Order Management Platform, driving both technical and product initiatives that enable retailers to scale their operations. Your work will directly influence how enterprise partners manage orders, production, fulfillment, and integrations. You will join a small, high‑impact engineering team operating like a scale‑up within the support structure of a public Silicon Valley tech company. This role requires strong technical leadership, clear communication, and the ability to partner closely with Product, Professional Services, and other Instacart engineering teams. Combining the culture of a scale-up with the benefits and influence of a Silicon Valley tech giant, FoodStorm provides a unique opportunity to join our small, growing engineering team based in Australia, while collaborating with a large, highly proficient team around the world. The role offers full time work from home or access to offices based in Melbourne, competitive salary and additional employee benefits. **About The Job**

*   Lead a team of engineers across backend, frontend, and cloud infrastructure to deliver scalable and secure software
*   Collaborate on, and drive the execution of a clear technical and product vision aligned with FoodStorm and Instacart’s platform strategy
*   Serve as a technical authority in full‑stack engineering, overseeing the lifecycle of backend services, APIs, integrations, and UI components
*   Guide the team through complex architectural decisions and implementation of secure, reliable, cloud‑native systems
*   Partner with broader Instacart teams to support retailer integrations and cross‑platform technical initiatives
*   Oversee production systems, ensuring enterprise‑grade reliability, performance, and incident response
*   Drive process improvements that increase engineering efficiency, predictability, and quality
*   Support hiring, onboarding, growth, and mentorship for engineers
*   Promote best practices in coding, testing, documentation, observability, CI/CD, and security
*   Apply pragmatic decision‑making, balancing business priorities with secure and scalable solutions

**About You** Minimum Qualifications

*   Proven track record as a hands‑on technical leader or engineering manager
*   2+ years experience managing teams of 6+ engineers
*   8+ years experience in web application engineering
*   Highly proficient in React, HTML, CSS, and JavaScript
*   Highly proficient in Microsoft .NET and C#
*   Highly proficient in Microsoft SQL Server or SQL Azure (T‑SQL, schema design, stored procedures)
*   Strong experience delivering secure software aligned to OWASP standards
*   Experience with Azure services, AKS, and cloud‑native architectures
*   Familiarity with Terraform or other infrastructure‑as‑code practices
*   Ability to craft and execute engineering roadmaps aligned to product goals
*   Demonstrated ability to mentor, coach, and develop engineering talent
*   Strong cross‑functional collaboration experience with Product, Professional Services, or customer‑facing teams
*   Exceptional written and verbal communication skills
*   Structured, proactive communication and strong stakeholder management

**Preferred Qualifications**

*   Experience with Go, Rust, or Ruby frameworks
*   Experience building enterprise‑grade or retailer‑facing systems
*   Experience working directly with customers or partners in a technical capacity
*   Experience enabling developer productivity and velocity, including AI‑supported development
*   Experience driving 0‑1 technical or product innovation
*   A leadership style grounded in trust, clarity, and empowerment
*   Pragmatism and business awareness in technical decision‑making
*   Strong ability to navigate both a startup‑like environment and Instacart‑scale operations
*   A passion for building great teams and great software

Engineering Manager, FoodStorm

**Position:** Software Engineer (Front-end)

**Type:** Hourly contract

**Compensation:** $70–$80/hour

**Location:** Remote

**Commitment:** 10–40 hours/week

**Role Responsibilities**

*   Write realistic, self-contained prompts for client-side web applications, games, tools, and simulations.
*   Create precise, binary evaluation rubrics tagged by verification type.
*   Ensure rubric items are pass/fail and verifiable through screenshot and code inspection.
*   Develop high-quality datasets focused on UI behavior, interactivity, robustness, and state management.
*   Apply frontend engineering expertise to evaluate correctness and user experience.
*   Collaborate asynchronously with research and review teams.

**Requirements**

*   Professional experience in frontend or full-stack development.
*   Strong proficiency in JavaScript, TypeScript, React, or vanilla JS.
*   Ability to write clear technical specifications and structured evaluation criteria.
*   Strong analytical thinking and attention to detail.
*   Comfortable working independently in a remote, deliverables-driven environment.
*   Bachelor’s degree in Software Engineering, Computer Science, or related field preferred.

**Application Process (Takes 20 Min)**

*   Upload resume
*   Interview (15 min)
*   Submit form

React/JavaScript Engineer (Frontend) | Remote

**About Us**

Coviu is a catalyst for life-changing online care anywhere.

Incubated at CSIRO and one of Australia’s fastest-growing technology companies, Coviu is a leading virtual care platform that is beautifully designed, intuitive, and purpose-built for healthcare.

We work with a range of healthcare providers and sectors, including doctors, allied health professionals, aged care providers and more - making it easier to deliver higher quality, more engaging virtual care.

We’re proud to be the Australian Government’s provider of choice for virtual care. Now, thanks to our users, we’re one of Australia’s fastest-growing technology companies with over 9 million+ consultations delivered globally by over 90,000 health practitioners!

Having completed our Series A capital raise led by EVP, the Impact Investment Group's Giant Leap Fund, and Main Sequence Ventures, we’re continuing to change the landscape of health as people know it and are passionate about breaking down the barrier of distance and enabling fair and equitable access to healthcare for everyone.

**The Role**

Ready to build something great? We’re looking for a skilled Full-Stack Software Engineer to help develop and enhance our platform. Working closely with our product team, you’ll bring ideas to life while honing your skills in a fast-paced, collaborative environment. If you love problem-solving and creating seamless user experiences, we’d love to have you on board!

As a Full Stack Software Engineer your responsibilities will include:

*   Write clean, easily maintainable code to meet system requirements, system designs and technical specifications in accordance with quality accredited standards.
*   Participate in code reviews to ensure code quality, maintainability, and adherence to industry best practices.
*   Working across frontend and backend components of our platform, including our WebRTC based video conferencing solution, third party integrations, and our internal and external application.
*   Contribute to technical documentation and communicate complex technical concepts to stakeholders.
*   Embrace experimentation, using data to test and iterate quickly on new features, with a focus on delivering measurable improvements.
*   Focus on delivering high-quality software solutions that drive meaningful outcomes for patients, clinicians, and healthcare providers.
*   Undertake other duties and responsibilities as required.

**Desirable experience and skills**

*   Bachelor’s Degree in software engineering or equivalent practical experience.
*   4+ years of experience as a software engineer, developer, or equivalent technical experience.
*   Experience of a full-stack engineer delivering production-ready systems using modern technologies.
*   Strong proficiency with modern JavaScript frameworks (e.g. React or Vue) and CSS pre/postprocessors (e.g. SASS, PostCSS) and CSS Modules.
*   Strong proficiency with server-side languages and frameworks (e.g. Node.js/Express).
*   Experience with SQL (e.g. PostgreSQL) and NoSQL (e.g. MongoDB, DynamoDB) databases.
*   Experience with developer tooling such as Webpack
*   Experience with testing frameworks such as Jest and Playwright.
*   Familiarity with Agile practices, especially Scrum and Sprint software lifecycles.
*   Proven debugging and troubleshooting skills.
*   Excellent communication skills and the ability to contribute as part of a team.
*   A demonstrated love of clean, maintainable code.
*   Initiative and ability to self-manage your own workload.
*   Self-motivation and ability to self learn in a remote workplace.
*   Innovative problem solving abilities.
*   Expertise in building and consuming robust and scalable RESTful APIs.
*   Experience with containerisation (Docker) and CI/CD pipelines.

**You Might Also Have:**

*   Familiarity with AWS and associated services like EC2, RDS, & ECS.
*   Experience withScala for backend development.
*   Experience integrating with third-party services.
*   Microservices & serverless architecture experience.
*   Worked in a TDD environment.
*   Sound security understanding, and the ability to know when to pause and escalate.
*   Understanding of SOLID principles.
*   Familiarity with Infrastructure as Code.
*   Familiarity with analytics platforms (e.g. Sentry, Datadog)

**Why work at Coviu?**

Here at Coviu, we strive hard for a better future of healthcare, providing the tools to enable care, from anywhere. To achieve this, we are committed to building an inclusive and diverse workplace.

When you join Coviu you can expect:

*   A company committed to open communication and retaining outstanding talent
*   A safe and flexible workplace as a remote-first business
*   Flexible ways of working, we at Coviu want to empower our team to feel trusted and respected every day
*   A generous work-from-home allowance to set up a home office to enable remote work
*   An opportunity to make a significant impact in the digital transformation of the healthcare industry
*   A passionate and friendly team who are leaders in their industry and will support and inspire you to reach your full potential

Learn more and meet the humans of Coviu here: https://youtu.be/F7IijQ2A0UU

We deeply value people from diverse cultures, abilities, genders and respect multiplicity of thoughts and free expression, allowing people to feel accepted and valued. We strive to provide a safe and flexible workplace as a remote first business. By providing flexible ways of working, we at Coviu want to empower our team to feel trusted and respected every day.

Please no recruitment agencies, if we require assistance we will reach out to our preferred suppliers.

**Join us**

If you’re ready to make a meaningful impact in a welcoming company with like-minded people excited about changing the landscape of digital health, apply now to start your journey with us!

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Full-Stack Engineer - REMOTE. In this role, you will be instrumental in developing a compliance eLearning platform aimed at creating safer and more inclusive workplaces. Your contributions will empower industries with customized courses and real-time analytics. By joining our team, you'll work alongside kind and respectful colleagues within a culture that fosters collaboration and innovation, making meaningful impacts on teams around you. **Accountabilities**

*   Own the marketing and product frontend, ensuring it is visually appealing and highly functional.
*   Implement and maintain new features, continuously improving the performance and usability.
*   Set up analytics, collect insights, and leverage data metrics to guide design and development decisions.
*   Collaborate with cross-functional teams, including designers and backend developers, for seamless experiences.
*   Troubleshoot and resolve performance and technical issues in a timely manner.
*   Stay updated with the latest frontend technologies and best practices.

**Requirements**

*   At least 7+ years of experience in building customer-facing products.
*   A Bachelor's degree or higher in Computer Science, Software Engineering, or a related field.
*   Strong expertise in modern frontend JavaScript frameworks like React.
*   Experience with backend libraries such as Ruby on Rails.
*   Attention to detail in UI/UX design and implementation.
*   Familiarity with version control systems like Git and CI/CD pipeline workflows.
*   Experience with responsive design and accessibility standards.
*   Willingness to work in the US timezone with flexibility for collaboration.
*   Excellent command of English, both written and verbal.

**Benefits**

*   Work within an amazing team dedicated to pushing the industry forward.
*   Be part of a culture that encourages collaboration and innovation.
*   Engage in a project that offers real-time analytics and impactful learning solutions.
*   Enjoy the flexibility of remote work from anywhere.

**Why Apply Through Jobgether?** 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! 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.

Full-Stack Engineer - REMOTE

**The Original Bitcoin Exchange** Inspired by Bitcoin's vision of financial freedom, we are committed to empowering individuals to transact and connect seamlessly across the globe. From the early days of the Bitcoin revolution, our mission has been to champion freedom through innovative, reliable, and accessible technology—ensuring that everyone, everywhere, has the tools to participate in a truly open and borderless world. We are driven by a relentless pursuit of innovation and financial empowerment. By prioritizing education and delivering a cutting-edge platform, we enable users to seamlessly buy, hold, and trade digital assets with confidence. As the digital asset landscape rapidly evolves, we stay ahead—offering state-of-the-art trading services that empower both individuals and global liquidity providers. Our forward-thinking, agile approach ensures that financial freedom is not just a vision, but a reality for all. Our team, composed of visionary individuals with practical expertise, focuses on crafting solutions to the market's toughest challenges. Despite our global presence and impact, we maintain a small, technology-focused core, fostering a culture of collaboration and innovation. We value integrity and autonomy, empowering our team to contribute from concept to launch. Driven by a passion for lifelong learning and a commitment to advancing freedom, we prioritize high-caliber products and services, with a proven track record of innovation that draws on the dexterity of our teams. **Why Join Us?Innovation** At Bitfinex, we merge technology and skill to create an environment where your involvement isn’t just appreciated—it’s pioneering the future and pushing boundaries in finance. Our culture values bold creativity, a passion for technology, and a deep belief in Financial Freedom. **Flexibility & Global Reach** We believe in trust, autonomy, and results—our team operates remotely, ensuring you work from anywhere while collaborating with some of the best talents across the world. We thrive on innovation, autonomy, and breaking new ground. **Fast-Paced & Impactful** Much like the crypto industry itself, our projects move fast, break new ground, and make an impact. Your contributions reach our global audience, shaping the narrative of a decentralized future. **A Team that Thrives on Collaboration** We blend seasoned experts with fresh creative minds, ensuring constant innovation, mentorship, and a dynamic work environment that keeps you at the forefront of achieving your goals. We see integrity and standing up for what is right as the most important qualities. **Grow with the Best** At Bitfinex, we’re committed to continuous learning—whether through technological advancements, creative workshops, or mentorship from leading professionals in the industry. If you’re excited about partaking in shaping the narrative of decentralized finance, you’ll feel right at home **We’re looking for:Senior Backend Developer** The Role: As a senior Backend Developer, you will be a part of the team that works on the development of the backend components of all Bitfinex Services (main trading application, Lightning Network support, Blockchain integrations, ….). This includes:

*   New Products and Features - Bitfinex continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.
*   Scalability - all backend services that power Bitfinex platform must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. A good example are the renown Bitfinex API, the most solid, low-latency and complete in our industry.
*   Security - Bitfinex makes Security its most important feature. The Backend Development team is responsible for building all the API services and backend processes with the highest security principles and standard, in order to protect the safety of the entire user base.

What You Bring to the Table:

*   Exceptional Node/JavaScript skills
*   Familiar with microservices architecture
*   Have actively participated in the development of a complex platform
*   Good experience in interacting with databases (MySQL, MongoDB)
*   Ability to quickly learn new technologies
*   Good understanding of security practices

Other Valuable Skills:

*   Experience with blockchain integration
*   Comfortable with high-availability concepts
*   Ruby, Rust or C++ skills are a plus
*   Other technologies of interest: Message queues (Redis), Caches and Job Queues

What We Offer:

*   Flexible Work & Remote-Friendly Culture
*   Mentorship & Growth
*   Competitive Pay
*   Career Development Opportunities
*   Supportive Team Environment
*   Learning & Knowledge Sharing
*   Team-Building Activities
*   Social activities (online & in-person)
*   A collaborative environment where your creativity will have a direct impact on the brand’s narrative

**Ready to join us in bringing Financial Freedom to all?** If you’re a visionary who thrives at the intersection of technology, knowledge and innovation, we want to hear from you! **Recruitment Data & Security Disclaimer** As part of the hiring process at Bitfinex, we collect personal data such as your name, contact details, location, job preferences, education and employment history, and other information you voluntarily provide. This data is used solely for recruitment purposes, processed in accordance with applicable global data protection laws, including the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA), and retained only for as long as necessary to fulfil its purpose. All assessments and recruitment-related communications are conducted exclusively through official Bitfinex email addresses (e.g., firstname.lastname@bitfinex.com). Bitfinex does not use unofficial channels (such as WhatsApp, Telegram, or SMS) for recruitment communication and does not distribute assessments or sensitive links via those means. As part of our secure and compliant recruitment process, we may use approved third-party platforms to facilitate candidate assessments. For more information, please refer to our Candidate Privacy Notice and Interview Recording Consent. All candidates have the right to access, correct, or delete their personal data and to withdraw consent at any time, where applicable. Bitfinex will never request payments, financial information, or personal banking details at any stage of the recruitment process. If you receive a suspicious request, wish to exercise your data privacy rights, or have further inquiries regarding the legal aspects of the process, contact privacy@bitfinex.com. Please note this inbox is intended for privacy concerns and reports only; any other communications will not be processed. **Equal Opportunity Statement** At Bitfinex, we're committed to equitable opportunities. We do not discriminate based on race, religion, gender, age, disability, sexual orientation, gender identity, or any other protected status. This commitment applies across all stages of recruitment and contractual relationships.

Senior Backend Developer - Node.js (Fully Remote, Worldwide)

**Position:** Software Engineer (AI-Native Platform & Integrations) **Type:** Full-time position **Compensation:** $70-$110 per hour **Location:** Remote **Commitment:** 10–40 hours/week **Role Responsibilities**

*   Own core product delivery end-to-end, including platform foundations, integrations, analytics surfaces, and pilot launch support
*   Build AI-native workforce management platform components, including core entities, workflows, permissions, and multi-tenant foundations
*   Develop an omni-tool integration layer, including connectors, event ingestion, sync, and actions
*   Build real-time analytics dashboards with live metrics, drill-downs, and exports
*   Architect an agentic tool-use layer compatible with MCP-style patterns, including tool registry, permissions, runtime, and observability
*   Ship production features across backend and frontend
*   Design and implement a scalable integrations framework
*   Set up strong engineering hygiene, including testing, observability, and on-call readiness for the pilot
*   Iterate quickly and pragmatically

**Requirements**

*   Strong practical software engineering skills with the ability to ship end-to-end features independently
*   Experience building SaaS products with APIs, data models, and production constraints
*   Deep comfort with integrations, including OAuth2, webhooks, API pagination, rate limiting, and sync semantics
*   Effective use of AI tools such as Copilot or ChatGPT while maintaining strong standards around tests, interfaces, and guardrails
*   Familiarity with MCP-style tool interfaces or building tool servers
*   Clear communication skills with the ability to explain tradeoffs and align stakeholders

**Application Process (Takes 20 Mins)**

*   Upload resume
*   Interview (15 min)
*   Submit form

Full-Stack Engineer - AI SaaS | Remote

Join a project focused on delivering a premium, conversion-optimized website for digital products using Payhip. This role is dedicated to front-end implementation, not design or backend development. You will be responsible for building 12–14 visually consistent pages, styling Payhip product pages, and integrating light JavaScript logic to enhance user experience. All assets, mockups, and detailed instructions are provided, allowing you to work independently and efficiently. The ideal candidate will have a proven track record of implementing high-quality, live Payhip sites and a strong understanding of hosted digital product platforms. No backend, WordPress, or plugin development is required—this is a focused front-end implementation role where attention to detail and quality are paramount. **Responsibilities**

*   Implement 12–14 front-end pages on Payhip, ensuring premium visual quality and consistency
*   Style Payhip product pages to align with provided mockups and brand guidelines
*   Integrate light JavaScript logic to support interactive elements as specified
*   Work exclusively with HTML, CSS, and JavaScript for all front-end tasks
*   Ensure seamless integration with Payhip’s hosted platform, following all provided instructions and assets
*   Deliver a conversion-focused user experience optimized for digital product sales
*   Collaborate asynchronously, managing your own workflow and meeting project deadlines

**Skills And Requirements**

*   Demonstrable experience with Payhip or similar hosted digital product platforms (Gumroad, Shopify hosted, Kajabi, Podia)
*   Portfolio of live Payhip implementations is essential
*   Advanced proficiency in HTML, CSS, and JavaScript
*   Strong eye for detail and ability to deliver visually consistent, high-quality front-end work
*   Experience implementing conversion-focused landing pages and product pages
*   Ability to follow detailed instructions and work independently without the need for research or concept development
*   No backend, WordPress, PHP, or plugin development required or accepted
*   Excellent communication skills and ability to deliver within agreed timelines

**About Twine** Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally. **Our Mission** Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.

Frontend Developer

Job Description

Apply now

Synthesia

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