> Markdown version of [/jobs/ext/4673633-founding-engineer](https://www.wearedevelopers.com/jobs/ext/4673633-founding-engineer). 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). --- # Founding Engineer - **Company:** Foundation Inc - **Location:** New York, NY, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Data Analysis, Databases, Continuous Integration, Cursor, DevOps, Django Web Framework, Python (Programming Language), PostgreSQL, Next.js, TypeScript, Wireless Networks, Tailwind, ReactJS, Backend, Build Management, React Native, Front End Software Development, Claude, Elastic Beanstalk - **Published:** November 11, 2026 - **Apply:** https://www.careerbuilder.com/job-details/founding-engineer-ny--08f3c40a-9fef-4659-bb03-e42383f164fe ## About the Role Wireless Communications, Startup, Business Model, Risk Management, Seed Funding, Pricing, Customer Relations, Finance, Team Player, Billing, Frontend (Web) * React (TypeScript), Next.js * Tailwind CSS (shadcn/ui) * Vercel Mobile * React Native, Expo Backend * Django (Python) * PostgreSQL * AWS (Elastic Beanstalk) AI Tools * Cursor, Claude What Were Looking For * 5+ years of experience building modern full-stack or backend-heavy applications * Strong experience designing scalable backend services, APIs, and databases * Comfort owning ambiguous problems and shipping production systems * Clear communicator who thrives in small, fast-moving teams * Excited by 01 work and meaningful product ownership Bonus Points * Experience at fast-growing startups or shipping early-stage products * Familiarity with AWS, CI/CD pipelines, and DevOps best practices * Interest in fintech, telecom, or consumer subscription products * Passion for building technology that puts people first ## Description Were building a new kind of mobile network with a simple but ambitious mission: help people spend less time on their phones while paying less for wireless. This is a well-funded seed-stage startup backed by $10M+ and led by a very well-known founder and public figure who is extremely hands-on and in the office daily. The company launched in 2025 and is already growing at an exceptional pace. Given the business model, distribution potential, and founder network, this is a meaningfully lower-risk seed startup than average, with a realistic path similar to Mint Mobiles trajectory (exit in a few years) The core product offers unlimited service on the T-Mobile network, plus cash back when users consume less data, with privacy and mental wellbeing as first-class principles - no data selling, transparent pricing, and a simple $50/month single-line plan. While wireless is the entry point, the broader vision is much bigger: a consumer platform that blends telecom with finance, investing, rewards, and behavioral incentives. Think gamified usage, wallet and subscription experiences, credit-related features, and other consumer-facing products that go well beyond a typical mobile carrier. With a team under 10 today, this role has real 01 ownership and the chance to help shape a platform that will evolve far beyond telecom. The Role As a Founding Full-Stack or Backend Engineer, you will report directly to the CTO and work closely with a small group of senior engineers. Youll help design and build core systems from the ground up while owning features end to end. You will: * Build, test, deploy, and own critical features across web and backend systems, with some mobile exposure in react Native if interested - certainly not required. * Work on systems like billing, finance, rewards, gamification, and internal tooling * Help scale the platform for nationwide adoption while maintaining reliability and performance * Collaborate closely on product roadmap, experimentation, analytics, and live operations * Shape technical architecture, tooling decisions, and engineering culture from day one