> Markdown version of [/jobs/ext/2257559-full-stack-software-engineer-at-well-funded-healthtech-saas](https://www.wearedevelopers.com/jobs/ext/2257559-full-stack-software-engineer-at-well-funded-healthtech-saas). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Software Engineer at well-funded healthtech SaaS - **Company:** Jack & Jill - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Mobile Application Development, Software as a Service, Django Web Framework, Python (Programming Language), Rapid Prototyping Process, Systems Architecture, TypeScript, ReactJS, React Native, Virtual Agents - **Published:** August 26, 2026 - **Apply:** https://www.collegerecruiter.com/job/2815091131-full-stack-software-engineer-at-well-funded-healthtech-saas ## About the Role * Senior-level engineer with 5+ years of experience building consumer-facing applications using React and Python or TypeScript * Proven ability to take ownership of complex problems and deliver maintainable, high-performance software solutions within a collaborative environment * Strong interest in wellbeing technology and experience with mobile development, specifically React Native and system architecture ## Description Overview This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Role Full Stack Software Engineer Company Description Company Description: Well-funded healthtech SaaS Job Description Job Description: You will help shape a B2B2C platform focused on stress reduction and resilience. By developing an intelligent, AI-native coach, you will integrate physiological data and behavioral science into daily user experiences. This role involves taking ownership of complex end-to-end features, making critical technical trade-offs, and driving measurable impact for global users. Location Location: London, UK Why this role is remarkable * Work at the intersection of AI and behavioral science to solve the global crisis of chronic stress and burnout * Join a well-funded startup backed by top-tier VCs where you can influence the product roadmap from the ground up * High-impact IC role with the autonomy to design sustainable, long-term technical architectures while shipping value early and often What you will do * Design and develop comprehensive end-to-end solutions using React, Python, and Django across web and mobile platforms * Collaborate with product managers and designers to define technical requirements and utilize AI tools for rapid prototyping * Monitor and maintain the smooth operation of production features while contributing to the enhancement of team engineering practices The ideal candidate * Senior-level engineer with 5+ years of experience building consumer-facing applications using React and Python or TypeScript * Proven ability to take ownership of complex problems and deliver maintainable, high-performance software solutions within a collaborative environment * Strong interest in wellbeing technology and experience with mobile development, specifically React Native and system architecture Who are Jack & Jill? Ok, I'll go first. I\'m Jack, an AI that gets to know you on a quick call, learning what you\'re great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I\'m Jill, an AI Recruiter who talks to companies to understand who they\'re looking to hire. Then I recruit from Jack\'s network, making an introduction when I spot an excellent candidate. Next steps 1. Visit our website 2. Click \'Talk to Jack\' 3. Talk to Jack so he can understand your experience and ambitions 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role 5. If Jill thinks you\'re a great fit and her client wants to meet you, they will make the introduction 6. If not, Jack will find you excellent alternatives. All for free We never post fake jobs This isn\'t a trick. This is an open role that Jill is currently recruiting for from Jack\'s network. Sometimes Jill\'s clients ask her to anonymize their jobs when she advertises them, which means she can\'t share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn\'t much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we\'re giving his services away for free. ## Related Videos - [Challenges of building React and React Native apps](https://www.wearedevelopers.com/videos/448-challenges-of-building-react-and-react-native-apps) - [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Coffee with Developers](https://www.wearedevelopers.com/videos/354-coffee-with-developers) - [Building Better Apps with React Native](https://www.wearedevelopers.com/videos/1466-building-better-apps-with-react-native) - [Vuejs and TypeScript- Working Together like Peanut Butter and Jelly](https://www.wearedevelopers.com/videos/127-vuejs-and-typescript-working-together-like-peanut-butter-and-jelly) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [WeAreDevelopers Dev Digest Issue 116 - The new search wars…](https://www.wearedevelopers.com/magazine/445-wearedevelopers-dev-digest-issue-116-the-new-search-wars) - [Dev Digest 122 - Cracks in the polyfill](https://www.wearedevelopers.com/magazine/457-dev-digest-122-cracks-in-the-polyfill) - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers)