Summary
Join a fast-growing AI startup as a Full Stack Engineer and help scale a secure platform serving thousands of users. You will build and ship high-quality features with React and TypeScript, design robust backend systems capable of handling massive data volumes and millions of API requests, and own features from concept through deployment and operation. The role involves production debugging, reliability and security work, mentoring, and thoughtful code reviews. 3+ years of professional experience with React, TypeScript, PostgreSQL, Docker, and CI/CD is required. The position is hybrid with flexible working hours and regular home-office options.
Highlights
Competitive salary with flexible working hours, up to two home-office days per week, a substantial annual learning budget, sports and mobility benefits, and direct ownership in a fast-growing AI platform. The role offers significant influence over product and architecture, rapid learning, deep-work-friendly processes, and the opportunity to build highly scalable, secure systems.
Description
We've hit Product-Market Fit.
Our AI platform meinGPT already serves 10k+ users across 250+ companies, and now we're scaling.
Your challenge: Help us grow to 100k users.
TL;DR: €60-80k • Unterhaching/München (hybrid) • 40h • React / TypeScript
Our Mission
Our mission with meinGPT is to bring AI to the core of the SME sector.
We're building the central, all-in-one platform that makes powerful AI accessible to everyone.
Our core challenge: Crafting a UX so intuitive so that anyone can master AI and build the technical foundation to handle millions of secure LLM calls per month.
Your work will define how thousands of people interact with AI daily.
Our engineering challenges for 2026:
Synchronize and index terabytes of client data and handle their permissionsProcess millions of LLM calls per month and our users expect high reliabilitySpawn thousands of code sandboxes per day which must run in a scalable and secure wayBuild the base infrastructure for our custom integrations team so that they can integrate new systems within few hours
Your Mission
Build and ship high-quality, full-stack features using TypeScript and React, with a strong focus on creating a seamless and intuitive user experience.Design and implement robust backend systems capable of handling a massive scale of data and millions of API requests.Take full ownership of features from concept and deployment through to operation, ensuring they are reliable, secure, and performant.Debug issues in production, identify root causes and implement solutions to ensure a stable platform for users.Help mentor junior colleagues and improve our codebase through constructive, thorough code reviews.
Why GenAI full stack engineering is full of exciting challenges:
Context Engineering: An AI agent is only as good as its context.
The core challenge is assembling the perfect context in real-time from multiple, diverse data sources to make the agent powerful and accurate.Scale: We process terabytes of sensitive customer data - while fulfilling all requirements about performance, correctness, reliability, and security.UI/UX: The challenge is creating intuitive interfaces for new interaction patterns like real-time streaming, live progress, and multi-modal inputs (text, voice, image).
What We Are Looking For
3+ years of professional experience software engineering and our core technologies (React, TypeScript & PostgreSQL) and the surrounding ecosystem (Docker, CI/CD)Strong sense of product ownership: You think beyond your own code and care about the big picture: how the product feels to users and how it succeeds as a whole.You are a quick learner and really enjoy the fast pace and high-growth environment that comes with a scaling product.
What's in it for You
Learn how to build a scalable AI platform, make critical product decisions in a high-growth startup, and integrate the cutting-edge AI technologyDirectly shape the product and its architecture during our critical 4M → 10M ARR growth phase.
Your work will be used by thousands of users from day one.Enjoy flexible working hours with the option of 2 days/week in the home office.Further perks like the access to 10,000+ sports facilities with the EGYM Wellpass, a €1,000 annual learning budget and the Deutschlandticket.
How We Work
We have a development process built for speed, quality, and focus.
Some insights:
We use AI tools (Cursor, Claude Code etc.) daily to be faster and smarter, but you remain in full control and responsible for your code.We minimize meetings and even make dailies optional to protect your deep work time.Healthy Ambition: We have huge goals but are committed to a healthy work environment - and make sure that our people are feeling well.Fast Delivery, Close to the User: We ship fast, stay close to our customers, and let their direct feedback drive our next steps.Security & Reliability First: As an enterprise platform, the security of customer data and the reliability of our systems are our highest priorities.
Our stack
Core stack: React, TypeScript, Python, tRPC, PostgreSQL, Kubernetes, DockerAI & Dev Tools: Cursor, Claude Code, CodeRabbit, Linear, GitLab, NotionAI Services integrated into the Platform: OpenAI, Gemini, Claude, Mistral, Perplexity, Flux, Gladia (audio transcription)
Next Steps
Application: Submit your profile through our short form.Intro Call (30 min): A short chat about your motivation and our mutual expectations.Technical Interview (Remote, 90 min): A live coding session to showcase your skills.Founders Interview (On-site, 90 min): Meet the founders at our office and discuss your experience and ambitions.Offer: If it's a great fit for both sides, we'll make you an offer.
