
Full Stack Developer – AI, SaaS
homie AI
full-time
Posted on:
Location Type: Hybrid
Location: Köln • Germany
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Tech Stack
About the role
- Build the future of online shopping as a Full Stack Developer
- Play a central role in developing our AI-powered services for retail
- Develop high-performance backend systems, smart frontends, and innovative AI features using state-of-the-art technology
- Develop and maintain scalable REST APIs with NestJS
- Build the latest online shopping interfaces: implement AI-powered services for product search, GPT-based communication, TTS output, and tool calls
- AI integrations: integrate LLM APIs into production systems
- Data handling: efficient data modeling with MongoDB, including aggregation pipelines and performance optimization
- Cloud experience: deployment and operation on Azure using Docker
Requirements
- Several years of experience with NestJS: Clean Architecture, DTOs, Guards, Interceptors, background tasks
- Strong proficiency in TypeScript
- Solid experience with MongoDB: indexing, aggregation pipelines, performance optimization
- Familiarity with modern LLM APIs: chat completions, TTS, embeddings, tool calls, prompt design, rate limiting
- Experience with containerized deployment using Docker in the Azure Cloud
- Comfortable with CI/CD pipelines: ideally GitHub Actions
- Self-directed working style: you work responsibly, in a structured way, and take pride in clean, maintainable code
- Proactive mindset: you contribute to architecture, security, scalability, and product strategy to voice your perspectives
- AI enthusiast: interest in real-world AI applications that deliver genuine value to users
- Team player: collaborative, communicative, and brings forward your own ideas
Benefits
- Remote or hybrid: work from anywhere or from our modern co-working spaces in Cologne or Hamburg
- Startup spirit: flat hierarchies, agile ways of working, fast decision-making, and full ownership of your projects
- Solution-oriented culture: we promote creativity, ownership, and the drive to move things forward
- International impact: you build software for customers around the world
- Team vibe: a collegial and personal atmosphere, regular team events, and knowledge-sharing sessions
- Open feedback culture: with personal mentoring
- 'Keep going smarter': budget for training, conferences, and e-learning to stay up to date with AI developments
- Additional benefits: we support you with a monthly allowance for mobility, groceries, or other expenses
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Full Stack DevelopmentNestJSTypeScriptMongoDBREST APIsAI IntegrationsData ModelingDockerCI/CDClean Architecture
Soft Skills
Self-directedProactiveTeam playerCollaborativeCommunicativeStructured working stylePride in clean codeContributing to architectureSecurity awarenessScalability focus