homie AI

Full Stack Developer – AI, SaaS

homie AI

full-time

Posted on:

Location Type: Hybrid

Location: KölnGermany

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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