**Founding Engineer – AI HealthTech Startup (React Native)Permanent | Remote (Europe) | €80–100k + Equity (up to 1%)**

We’re working with a mission-driven AI HealthTech startup looking for a **Founding Engineer** to help shape and build the future of their mobile platform. The company is creating tools to support personal growth and well-being — and this role is perfect for someone who’s excited by early-stage impact, ownership, and product experimentation.

**What You’ll Do**

*   Own the build and iteration of the mobile app using React Native (currently with Expo)
*   Ship fast: iterate prototypes into testable, user-ready features
*   Work closely with the founders and UX designer to shape the product
*   Contribute across the stack if needed — especially if web-based features are introduced later
*   Explore deeper mobile features like VoIP and sensor integrations (bonus points)

**Tech & Experience**

*   Expert-level React Native development
*   Strong iOS (native or deep platform understanding)
*   Expo experience preferred (flexible)
*   Integration with REST APIs and analytics tools
*   Bonus: VoIP, on-device sensors, A/B testing, frontend/web dev

**You’ll Thrive If You…**

*   Are self-directed and excited by early-stage ambiguity
*   Want to build something meaningful that helps people grow
*   Have a personal interest in wellness, AI, or productivity tech
*   Want to be part of a small, values-driven team and grow with the company

**Location & Culture**

*   Remote within Europe
*   Preference for Netherlands, Barcelona, or London
*   In-person team meetups every ~8 weeks

If this sounds of interest, please apply below and we will be in touch! 🚀

Founding Engineer

**Full Stack Software EngineerDuration**: 6 Months

**Location**: Remote

**Rate**: £375 - £400 per day DOE

**Status**: OUTSIDE IR35

**Clearance**: Eligible for BPSS

**Start Date:** ASAP

**Summary:**

My market leading client are looking to secure the services of a Full Stack software engineer to assist with critical project work over the coming months for a government customer. The ideal consultant will need to demonstrate skills across both Java (Backend) and TypeScript (Angular Frontend) having worked in Cloud-based environments historically (AWS). Experience working in the very early stages of application development is also key, being able to contribute to the long-term direction of the project.

**Key Responsibilities:**

*   Collaborate with stakeholders to refine prototypes into well-defined technical solutions.
*   Develop high-quality frontend components using TypeScript in Angular.
*   Design, build, and maintain backend services using Java.
*   Participate in early architectural decisions and technical direction of the product.
*   Write clean, scalable, and maintainable code with appropriate testing.
*   Actively contribute to team discussions, code reviews, and agile development cycles.
*   Experience working with Version Control (Git)

**Desirables:**

*   CI/CD understanding
*   Knowledge of Cloud based environments

If you’d like more information on the assignment, please drop me an email Adam.Rees@IdentifySolutions.co.uk – or give me a call on 07400 28 3333.

**Full Stack Software Engineer**

Full Stack Engineer

**Application Deadline:** 25 September 2025 **Department:** IT **Location:** London **Description** The development team at Mountain Warehouse is split into small teams, each looking after a different set of applications and using a Kanban approach to prioritisation. We are a collaborative team with a strong culture of code review, occasional usage of pair programming, lots of unit tests. We’re keen to write code following best practice and to continuously find ways that we can be even better. The work is a mixture of green-field and legacy work (much like any other mature organisation) mostly using C#, SQL Server, React & TypeScript, with a combination of monolithic and microservices architectures. **Key Responsibilities** We are looking for an experienced developer to join our Buying & Merchandising Dev team which is responsible for the systems used by the company to plan product ranges, make stock purchasing decisions, manage pricing & promotions, and analyse sales, stock & intake. **A selection of what we’re using across the departmentLet us know what you have experience of, we can train in the rest.**

*   Microservices architecture.
*   Docker & Kubernetes in Azure.
*   Continuous Delivery with Jenkins.
*   RabbitMQ / MassTransit.
*   Microfrontends.
*   Test Driven Development.
*   RESTful API design.
*   GitFlow.

**We Would Like To Meet Someone Who Is** Minimum 4 years of C#, SQL, JavaScript/TypeScript to an advanced level in a commercial environment. **Minimum 2 Year’s Commercial Experience Of React** Produces initial results rapidly and iterate based upon feedback. Knowledge of microservice design principles – preferably with commercial experience. Effective communicator. Makes pragmatic implementation decisions and can fail fast if an approach is not working. Understands projects and project goals in depth. Solves challenging problems when no obvious solution is apparent. Desirable experience / behavioursCoaching or mentoring more junior team members of the team. Technical planning/scoping of projects. Experience working in a retail organisation. **Benefits**

*   Competitive salary and benefits package
*   Remote-first with an office in central London if you need it.
*   Holiday allowance
*   50% staff discount & 25% for family and friends
*   Pension scheme

Senior Full Stack .NET Developer (Buying & Merchandising)

**Founding Engineer - Python & TypeScript📍Remote - UK⏳Permanent💼£100K/year**

Seeking a Senior Lead Full Stack Developer who excels at both building and leading. This is roughly a 70/30 role: most of your time will be spent writing production-level code across the stack, while also guiding and mentoring a growing engineering team.

You’ll work closely with the CTO to translate product goals into scalable architecture, lead sprint planning and engineering processes, and directly shape the evolution of the AI-driven video platform. This role has a clear path toward Head of Engineering within 12–24 months.

**Responsibilities**

*   Own and evolve full-stack architecture (Python, Flask, React)
*   Write high-quality, scalable code while mentoring a team of 4 engineers
*   Lead sprint planning, task assignments, and engineering operations
*   Collaborate with the CTO on roadmap execution and technical priorities
*   Architect and deliver new features end-to-end (from APIs to UI)
*   Design and maintain microservices and internal APIs
*   Manage and optimize cloud infrastructure (ECS/Kubernetes, autoscaling, storage)

**Requirements**

*   5+ years as a full stack engineer (Python, Flask, React/JS), with 2+ years in a technical leadership role
*   Proven ability to design, build, and maintain scalable backend systems & APIs in production
*   Hands-on expertise with cloud infrastructure (AWS or equivalent)
*   Background in video, media tech, or AI/ML platforms
*   Previous startup or small tech company experience

👉 If this sounds like the next step in your career, we’d love to hear from you. Apply now or reach out directly for a conversation.

**5V Video are acting as an Employment Agency for the purposes of this job vacancy. We offer a reward scheme if you can recommend someone for this position, up to £250 for you and an additional £250 to a charity of your choice, 5V Video are recognised talent solutions experts within Video and Broadcast Technology working across Europe, the UK and North America. Email applications to kenny.newbury@weare5vvideo.com**

**Work across multiple different projects to improve LLM performance on code: sample projects**

*   **Leading and delivering end-to-end agent use cases such as home automation agents, coding copilots, or creative design assistants.** 
*   **Collaborate with the team to identify  edge cases and ambiguities in model behavior.**
*   **Review and compare 3–4 model-generated code responses per task using a structured ranking system.**
*   **Evaluate code diffs for correctness, code quality, style, and efficiency. Provide clear, detailed rationales explaining the reasoning behind each ranking decision.Required Skills & Experience**

*   **Several years of software engineering experience, including 2+ continuous years at a top-tier product company (e.g., Google, Stripe, Amazon, Apple, Meta, Netflix, Microsoft, Datadog, Dropbox, Shopify, PayPal, IBM Research).**
*   **Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools.**
*   **Deep understanding of software architecture, design, development, debugging, and code quality/review assessment.**
*   **Proven ability to review code diffs and evaluate correctness, maintainability, and efficiency.**
*   **Excellent oral and written communication skills for clear, structured evaluation rationales.Engagement Details**

*   **Commitment: flexible engagement, minimum 10 hrs/week, up to 40 hrs/week (partial PST overlap required).**
*   **_Duration: 1 month potential extensions based on performance and fit._**

Full stack Engineer (RUST)

**An Introduction to Primer**

We’re the world's first unified payment infrastructure, empowering businesses worldwide to unleash their payment potential. By choosing our platform, merchants can take control over their payment stack, create unique commerce experiences, accelerate their roadmap and increase payment success. We strive to make something complex, incredibly simple and intuitive. The world's top investors, including Accel, Balderton, Iconiq, and Tencent, have invested in Primer's vision to rebuild payments and commerce from the ground up.

Join us in shaping the future of payments and commerce.

**Unfortunately we are unable to offer sponsorships or relocation packages at this time.**

Reporting to an Engineering Manager, you’ll join a team of backend, full-stack, and frontend engineers all working together alongside our Product team.

The team adopts a ‘you build it, you own it’ approach, working with infrastructure, doing their own testing and QA.

Our tech stack includes: Python, Typescript, React, AWS, Kubernetes and Terraform amongst lots of other things.

🔍 **What will you be doing?**

*   Improve and optimise fallback mechanisms to ensure seamless payment processing.
*   Enhance reliability by implementing smart routing and failover strategies.
*   Redesign data pipelines to improve monitoring, tracking, and real-time insights.
*   Ensure data accuracy and integrity across payment systems.
*   Build and refine an **A/B testing framework** to test different payment flows.
*   Develop **if X, then Y** decision-based logic to optimize transaction success rates.
*   Enable rapid iteration and data-driven improvements in the payments experience.

👀 **What we’d love to see:**

*   A **Full-Stack Developer** with a strong focus on **Frontend development** (JavaScript/TypeScript + React).
*   Someone comfortable working across the stack, with **some backend experience (Python preferred)** but primarily frontend-heavy.
*   Experience with **testing frameworks** and a good approach to writing testable, maintainable code.
*   Be willing to set goals, success metrics, driving and setting up sprints and driving refinement sessions of the tickets and driving delivery side on a day to day basis.
*   In-depth understanding of the entire development process (design, development and deployment)
*   Highly motivated self-starter who values autonomy and getting things done
*   Excellent verbal and written communication skills
*   Experience working in a fast-paced environment.

🚫 **You may not like it here if:**

*   You enjoy working in an office-setting, we are remote-first and always will be!
*   You are not comfortable with shifting context and navigating ambiguity
*   You don’t enjoy testing your code, we have no testers or QA’s here at Primer

**Our interview process**

*   30 minute call with a Talent Partner
*   45 minute interview with an Engineering Manager
*   90 minute pair programming interview
*   60 minute final stage values-alignment interview

**What’s life like at Primer?**

We’ve been recognised as a top global employer, #1 in FinTech for ‘flexibility’!

We’re building a culture where people can come and do their best work and enjoy it. We want our people to be proud of the impact that they have at Primer, and of the work that they are doing. You will be working with a team of people who are mission-driven, smart, and reflective, and who are invested in building exceptional products and delivering success for our merchants _(and we also know how to have fun along the way)._

We work remotely. We believe that building a successful, profitable company goes beyond proximity. We invest in our relationships with each other through great remote working practices and thoughtfully designed face-to-face time together. Our heads-together time comes in the form of workstations, our annual company retreat, and co-working space access worldwide.

Finally, let’s go ahead and say it. The work that we do is challenging. Startups are a challenge, building category defining products is a challenge. You should be prepared for a challenge at Primer. But, there’s a big difference between a challenge and a struggle. The key difference is that the right challenge comes with the right support structures, an acceptance that not everything always goes to plan, a collaborative environment, and a great team around you. It’s never a challenge that you will face alone.

**Our benefits**

🌍 We are fully remote and globally distributed; and have been since day one

💰 Competitive share options

🌴 Uncapped holiday, with 25 days minimum to be taken

🗣️ Co-working space access

📅 Workations & Company Retreat

💻 The best equipment for your role

🏠 £500 towards your home office setup

🔎 Generous learning budget

🏥 Private Medical Insurance

📈 A broad set of additional perks and benefits (_depending on location)_

**Don’t meet every single requirement?**

At Primer, we’re dedicated to building a diverse, inclusive, and authentic workplace. If you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply. You may be the right candidate for this or other roles. Primer is committed to the equal treatment of all current and prospective employees, regardless of background or beliefs.

Primer adopts a zero-tolerance approach to discrimination. We are committed to providing equal opportunities to all current and prospective employees regardless of age, disability, sex, sexual orientation, pregnancy and maternity, race or ethnicity, religion or belief, gender identity, or marriage and civil partnership.

Senior Full Stack Engineer

**About Us**

We are a dynamic FinTech startup revolutionizing bill payments, one bill at a time. Since our launch in February 2018, we’ve expanded across Australia and the United States, helping hundreds of thousands of people manage and pay millions of bills. Our mission: to help people build a happier relationship with their money, starting with their bills. If you're passionate about solving meaningful problems, experimenting with business strategies, and making a tangible impact on people's financial well-being, we want to hear from you.

**About the Role**

We are seeking a highly motivated software developer with a passion for driving business strategy. This role is ideal for someone who not only excels in software development but is also eager to make a difference by testing new ideas and making recommendations based on their results.

As a member of our Engineering team you will work within existing technical processes to ensure your code changes meet quality expectations. Reporting directly to the General Manager you will put your software development skills to work by deploying growth experiments in the form of A/B tests and implementing various enhancements to our platforms.

**Responsibilities**

*   Growth and A/B Testing: Collaborate with business stakeholders to contribute and implement ideas to drive business growth. Plan, develop, deploy, and analyze A/B tests in both our web application and sometimes, our mobile app. Create reports from test results and translate findings into actionable insights and recommendations.
*   Marketing Initiatives: Support various marketing and other initiatives as directed, which may include platform integration with advertising networks, developing and updating landing pages, CMS and implementing various technical changes to support SEO.
*   Collaboration and Innovation: Engage with other teams to understand and address their needs, contributing innovative ideas to drive growth and achieve business goals.
*   Technical Development: Write clean, performant, decoupled, testable, and maintainable code, ensuring high standards and quality in front-end development, inline with existing technology methodologies and tools.
*   Tool and Workflow Management: Use existing GIT and CI/CD tools to maintain efficient workflows and ensure timely deployments.

**Qualifications**

*   3+ years of experience in both front and back end software development, specifically ReactJS and Typescript
*   Strong understanding of Python and OOP models
*   Demonstrated ability to write performant, maintainable, and testable code
*   Experience with distributed version control (GIT) and CI/CD tools
*   Knowledge of SQL and relational databases
*   Bonus: experience with React Native
*   Strong understanding of web application development (bonus for hands-on experience with mobile)
*   Achievement-focused and comfortable to work flexible hours from time to time to meet goals and deadlines
*   Business acumen and interest in collaborating on growth initiatives, including familiarity with A/B testing, working with data and interpreting it to inform business decisions
*   Experience or familiarity with digital marketing including SEO

**Benefits**

*   Full remote work-from-home flexibility.
*   A dynamic, results-driven work environment with opportunities for growth and innovation.
*   Collaborative and supportive culture focused on personal empowerment and development.
*   Negotiable salary.

**Additional Information**

*   Applicants must hold citizenship, permanent residency, or a work visa for Australia.

Growth Developer

At CENDAS, we're transforming the construction industry through digital innovation. Since 2021, our SaaS platform has unified every stakeholder and project phase into a single, streamlined workflow. We believe technology should empower not burden those building the world. Headquartered in Germany with a globally distributed team of 60+ professionals, we empower construction companies to "GET WORK DONE" faster, smarter, and with fewer headaches. Our mission is to simplify the daily chaos of construction work with powerful, intuitive software. We’re not here to digitize paperwork we’re here to make it obsolete. This isn’t just another job it’s an opportunity to be at the forefront of innovation and make a lasting impact. **What You Bring?**

*   React & TypeScript: 5+ years of hands-on experience building robust, scalable web applications.
*   State Management: Practical experience using Zustand, Redux, MobX, Recoil, or

similar.

*   Offline-First Development: Delivered offline-capable PWAs or desktop apps using WatermelonDB, RxDB, AWS AppSync, PouchDB, or PowerSync.
*   Communication Skills: Fluent written and spoken English for seamless async and real-time collaboration. Dad jokes optional but appreciated.

**Nice to Have:**

*   Experience with component systems like Storybook or Design Tokens.
*   Comfortable with Figma handoffs and modern design-to-code collaboration.
*   Familiarity with Node.js and NestJS; GraphQL APIs are a plus.
*   Exposure to React Native or Electron for cross-platform development.

Not sure you meet 100% of the requirements? If you match :80% and are excited about this role, apply anyway — we're not building rockets (yet). **Why You’ll Love Working at CENDAS?**

*   Remote-First – Work from anywhere within CET ±3 or drop by our office in Bochum,

Germany (pants optional on video calls).

*   Generous PTO – 30 days of paid vacation plus public holidays.
*   Flexible Hours – Organize your workday to suit your life and energy peaks.
*   Competitive Compensation – We offer a salary that reflects your experience and the

impact you bring to the team.

*   AI-Positive Culture – We embrace AI to help us focus on the fun parts of our jobs (and not rewriting the same function 12 times).
*   Inclusive & Collaborative Team – A diverse and welcoming environment with regular

virtual get-togethers (yes, even remote teams like quizzes and memes).

*   Meaningful Impact – Your work will directly shape the daily experience of thousands

in the construction industry.

*   Career Advancement – Clear growth paths and mentorship.
*   Scale-Up Energy, Start-Up Agility – Work in a fast-moving environment with solid

long-term backing — think less chaos, more ownership. **How We Work?**

*   We value thoughtful communication, pragmatic problem-solving, and humble

collaboration.

*   We ship incrementally, measure outcomes, and iterate fast.
*   We believe great software is built by small, empowered teams that trust each other.

**Your Mission:** As a Senior Frontend Developer, you’ll be the driving force behind our user-facing applications:

*   Build, improve, and own features using React + TypeScript that simplify complex

workflows — and make construction workers say “Whoa, that’s smooth”

*   Design scalable state management solutions.
*   Implement robust offline-first flows so our users can work in construction sites,

basements, or bunkers.

*   Work with a modern stack (AWS, GitHub, Jira, Microsoft Teams, you choose your

equipment setup) the usual suspects, minus the bureaucracy.

*   Cultivate a peer-review culture where everyone both gives and receives feedback—

lead by example through collaborative code reviews, knowledge sharing, and zero-ego discussions. **Our Hiring Process:**

*   Intro Chat (15 min) – A brief and friendly call to get to know each other and answer

initial questions.

*   Meet the Team (30 min) – Chat with one of our developers or product owners to get

a feel for our day-to-day work, tech stack, and culture. We'll also explore a few technical topics to gauge alignment.

*   Take-Home Task – A realistic and focused challenge designed to reflect the kind of

work you'd actually do here.

*   Technical & Culture Interview (60 min) – A deep dive into your submitted task,

problem-solving approach, and how you collaborate. Bonus points if you bring good questions or great memes.

*   Final Decision – Fast, transparent feedback and, if we both feel it's a match, a job

offer (confetti emojis included). We respect your time and promise to communicate clearly throughout. **How to Apply?** Please send your CV and answers via Online application at hier cendas/karriere/ or Kontakt (über Bewerben-Kontaktformular) . Let’s build the future of construction software — and have a little fun while we’re at it. Skills zu dieser Stellenanzeige: Zustand, State Management, redux, recoil, AWS, offline database, CouchDB, PouchDB, Typescript, React.js, Node.js, NextJS, PWA, RxDB, WatermelonDB, AppSync, PowerSync, Figma und Storybook **Wichtiger Hinweis** Das ist eine Anzeige des Empfehlungsbund (EBND) von Jobs-Daheim.de. Weitere wichtige Informationen zur Anzeige finden Sie unter https://jobs-daheim.de/jobs/284465/senior-frontend-developer-react-remote-cet-plus-3-m-strich-f-strich-d-in-bochum-berlin-leipzig-muenchen-hamburg-frankfurt-stuttgart

Senior Frontend Developer – React (Remote – CET ±3) (m/f/d)

**About Motion** Motion is a North American transportation solutions company helping fleets save money, move smarter, and operate more efficiently. We partner with carriers of all sizes to provide access to discounted fuel programs, flexible financial services, and powerful digital tools that simplify fleet operations. Our mission is to remove the friction that trucking companies face every day—whether that’s managing costs on the road, streamlining back-office processes, or unlocking new ways to grow their business. With Motion, carriers gain a trusted partner who understands the realities of the industry and is building modern solutions to keep them moving forward. **Responsibilities**

*   Own end-to-end design and delivery of major features and systems across Motion’s stack
*   Architect and maintain scalable full-stack applications using TypeScript, Next.js, Express.js, and React Native
*   Develop and maintain APIs and backend services with tRPC
*   Collaborate cross-functionally with designers and product to shape the roadmap and technical strategy
*   Establish and enforce engineering best practices, testing standards, and code quality
*   Monitor performance, debug production issues, and drive long-term stability and scalability
*   Mentor and review the work of other developers to elevate the engineering team

**Requirements**

*   5+ years of hands-on full-stack development experience
*   Strong proficiency in TypeScript, tRPC, and PostgreSQL
*   Deep experience with Next.js (SSR & static generation) and React Native
*   Solid backend development expertise with Express.js
*   Strong understanding of cloud infrastructure (AWS preferred: S3, Lambda, RDS, etc.)
*   Comfortable designing relational database schemas and optimizing queries
*   Track record of owning projects from architecture → implementation → deployment
*   Excellent communication, leadership, and problem-solving skills

**Nice To Have**

*   Experience with serverless architectures
*   Familiarity with Better-Auth
*   Experience integrating Stripe or other payment APIs
*   Prior experience mentoring teams or scaling systems in a startup environment

**What We Offer**

*   Opportunity to shape core infrastructure at a rapidly growing company
*   Fast-paced, supportive, and collaborative work environment
*   High-impact role with room for advancement

Senior Full Stack Developer

**About Motion** Motion is a North American transportation solutions company helping fleets save money, move smarter, and operate more efficiently. We partner with carriers of all sizes to provide access to discounted fuel programs, flexible financial services, and powerful digital tools that simplify fleet operations. Our mission is to remove the friction that trucking companies face every day—whether that’s managing costs on the road, streamlining back-office processes, or unlocking new ways to grow their business. With Motion, carriers gain a trusted partner who understands the realities of the industry and is building modern solutions to keep them moving forward. **Responsibilities**

*   Design, build, and maintain scalable full stack applications using TypeScript, Next.js, Express.js, and React Native
*   Develop and maintain APIs and backend services with tRPC
*   Collaborate with designers, and other engineers to deliver high-quality features
*   Write clean, testable, and well-documented code
*   Monitor performance, debug issues, and continuously improve the stability and usability of the platform
*   Participate in code reviews and help establish best practices across the engineering team

**Requirements**

*   3+ years of hands-on experience in full stack development
*   Strong proficiency in TypeScript & tRPC
*   Experience with Next.js (React-based SSR and static site generation)
*   Solid backend development skills with Express.js
*   Experience developing cross-platform mobile apps using React Native
*   Proficiency with AWS services such as S3
*   Familiarity with RESTful APIs, and CI/CD workflows
*   Solid understanding of relational databases (PostgreSQL preferred)
*   Excellent problem-solving skills and attention to detail

**Nice To Have**

*   Experience with Serverless architectures
*   Familiarity with Better-Auth
*   Familiarity with Stripe
*   Experience working in a startup or fast-paced environment

**What We Offer**

*   Opportunity to shape core infrastructure at a rapidly growing company
*   Fast-paced, supportive, and collaborative work environment
*   High-impact role with room for advancement

Founding Engineer

Job Description

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