> Markdown version of [/jobs/ext/408333-senior-fullstack-applied-ai-engineer](https://www.wearedevelopers.com/jobs/ext/408333-senior-fullstack-applied-ai-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). --- # Senior Fullstack Applied AI Engineer - **Company:** Maia - **Location:** Leipzig, Germany (Remote available) - **Experience:** Expert - **Salary:** €75,000.0 - €85,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Databases, Content Analysis, Data Transformation, Database Queries, Software Debugging, DevOps, PostgreSQL, Software Maintenance, Secure Coding, TypeScript, Datadog, ReactJS, Large Language Models, Grafana, Backend, Sentry, Front End Software Development, Restful APIs - **Published:** June 23, 2026 - **Apply:** https://www.careerjet.de/jobad/decb97b9756b0964a1a4a99a7629be0339 ## About the Role * Strong backend engineering skills in TypeScript, or another strongly typed language (Go, Java, Rust) plus solid TypeScript fundamentals and the ability to contribute productively in a TypeScript codebase from day one. * Proven experience building and shipping production REST APIs. Strong SQL skills, ideally with PostgreSQL in production. * Hands-on experience building or operating LLM applications, ideally with exposure to RAG systems and retrieval concepts. Commercial experience with at least one relevant LLM framework and at least one vector database. * Practical experience debugging production systems using observability tooling (logs, metrics, tracing), for example Grafana, Sentry, PostHog, or equivalents. * Solid React fundamentals and the ability to implement and maintain frontend components with good engineering quality and basic UX judgment. * Foundational understanding of cloud and DevOps concepts, enough to collaborate effectively with a dedicated DevOps engineer and handle small operational tasks if needed. * Ability to follow secure development best practices in day-to-day engineering work. * Fluent in English. German is a plus. Ways of working * Strong ownership mentality - you take responsibility end-to-end, without needing to be managed. * People enjoy working with you - not just because of what you know, but because of how you interact with them. * AI is part of how you work - not just as a tool you use, but something you actively explore. You experiment with models, prompts, agents, and workflows, and you have informed opinions about what actually works. * Pragmatic builder - you ship solutions at the right level of complexity for the stage, and you can explain why a simpler approach was the right call. * You prioritize based on business impact and customer value, not technical interest alone. * Comfortable working in a fast-moving startup environment with ambiguity and shifting priorities. * You communicate clearly with both technical and non-technical stakeholders. Nice to have * Experience with Supabase. * Experience with document analysis pipelines and preprocessing for retrieval. * Experience with automated evaluation and testing for LLM features. * Experience with LLM tracing and analytics (e.g., Langfuse). * Technical leadership: mentoring, setting standards, or leading cross-cutting initiatives. ## Description We are looking for a Fullstack Applied AI Engineer (f/m/x) to join our engineering team - someone who ships production-grade AI features end-to-end, from retrieval pipelines and agentic workflows to the APIs and UI changes that bring them to life. Tasks * You build and evolve MAIA's core product capabilities. Your primary focus is backend and AI systems - RAG pipelines, retrieval strategies, agentic workflows, and LLM integrations. You also implement the frontend changes needed to ship features end-to-end, while backend remains your main area of work. * You design, implement, and ship features from discovery to production rollout, with a strong focus on backend and AI functionality. * You build and iterate on RAG pipelines, retrieval strategies, and LLM integrations, making pragmatic tradeoffs across quality, latency, and cost. * You build evaluation approaches for LLM features - quality gates, regression detection, and observability that makes non-deterministic systems debuggable. * You implement frontend changes needed to ship features end-to-end - simple, intuitive UI work that unblocks delivery, typically a small portion of total effort. * You proactively scout new technologies and approaches, translate findings into production-ready solutions, and push the team's understanding of what is possible. * You collaborate closely with Product, DevOps, and customer-facing teams to turn requirements into high-quality, maintainable software. ## Related Videos - [Coffee with Developers - Maria Apazoglou](https://www.wearedevelopers.com/videos/1209-coffee-with-developers-maria-apazoglou) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [From Doubt to Confidence: How Sentry Uses Verdaccio to Bulletproof SDK Releases](https://www.wearedevelopers.com/videos/739-from-doubt-to-confidence-how-sentry-uses-verdaccio-to-bulletproof-sdk-releases) - [How to Avoid LLM Pitfalls - Mete Atamel and Guillaume Laforge](https://www.wearedevelopers.com/videos/1328-how-to-avoid-llm-pitfalls-mete-atamel-and-guillaume-laforge) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)