Senior Backend Developer – Agents (100% Remote, German-Speaking)

Rabat

2 000 – 4 000 $ par moisCDI / Temps pleinTélétravailAllemand, AnglaisInformatique / IngénierieInformatique / IT

L’essentiel du poste

Résumé par Postule AI

Senior Backend Developer role for the Hausverwalter.ai platform, an all-in-one AI-driven tool for German property management companies. The 100% remote position requires fluent German and English and centers on improving agent performance through direct work with property managers. Responsibilities span inbox agents, agent harness engineering, the custom knowledge base, LiveKit voice agents and LLM infrastructure. Compensation is $2,000 to $4,000 per month before taxes via a permanent contract through partner Deel (EOR), plus a broad health program and other benefits.

Vos missions

  • Build and improve autonomous Inbox Agents, deciding when they should escalate to a human and how they stay on process
  • Shape agent behavior through tool design, system prompts and skills, so agents read requests the way property managers do
  • Improve the custom knowledge base and how the AI searches it, including whether agents should learn on their own
  • Develop LiveKit-based voice agents that handle phone calls the way text agents handle tickets
  • Work on LLM infrastructure: model choice, caching, streaming, retries, RAG search, cost tracking and evals
  • Talk with property managers using the agents, find where they go wrong and turn that into improvements

Profil recherché

  • You have more than 2 years of experience building production agents and want them to work better for real users
  • You are fluent in German and English and enjoy talking directly with customers
  • You would rather ship a rough v1 today than spend weeks planning the perfect version
  • You work independently and want full responsibility for your area, including after it goes live
  • You see yourself as a generalist, learn quickly and write most of your code with AI

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Fluent German is required for this role. Our customers are property management companies in Germany. We are looking for Senior Developers for our fully remote team to work on our agents. You will be responsible for how well our agents work for customers: you talk to the property managers who use them, see where they go wrong and make them better.

About Us

Hausverwalter.ai is an all-in-one platform for property management companies, with features such as an Inbox, CRM, Documents, Telephony, Video Calls, Team Chat and AI Agents. The goal is to automate as much of a property manager's daily work as possible.

About the Role

The platform has been agentic since day one. Almost everything users can do in the UI has an agent tool, and the Co-Pilot, the daily assistant for users, can carry out these tasks for them. The real challenge is building autonomous agents.

What You Will Work On

  • Inbox Agents: autonomous agents triggered by new events in a ticket. You decide when to escalate to a human and how to keep agents on process.
  • Harness Engineering: the agent has 100+ tools. You shape how it reads requests the way a property manager would, and what goes into prompts versus skills.
  • Knowledge Base: a custom-built, Notion-like company brain. You explore whether the AI should learn on its own and how it searches the knowledge base.
  • Voice Agents: the same agents on the phone, built on LiveKit, handling calls the way text agents handle tickets.
  • LLM Infrastructure: model selection, caching and streaming, retries, context compaction, RAG optimization, cost tracking and evals.

Tech Stack

Everything is TypeScript, from the database schema to the frontend.

  • Backend: Convex (database and serverless functions)
  • Frontend: Next.js, React, Tailwind, shadcn/ui
  • Technologies you will encounter: Vercel AI SDK, Convex Agent Component

The specific stack is less important to the company, since AI will be writing 100% of the code.

Compensation and Benefits

  • Salary: $2,000 - $4,000 per month before taxes, with room for growth and promotion
  • Permanent employment contract in your country of residence through partner Deel (EOR)
  • 100% remote work and flexible hours
  • Allianz Gold health insurance with great coverage
  • As many AI tokens as you need
  • Self-funded and profitable, not burning VC money to survive
  • Small team with real ownership: what you build actually goes live
  • Quick decisions, few meetings and few layers of approval
Health Program
  • Private hospital room and worldwide coverage, with free choice of doctors and specialists
  • No health check required; pre-existing conditions don't matter; partner and children included
  • Surgery, cancer care, MRI/CT/PET scans and diagnostics fully covered; dental covered at 90%
  • $675 per year for physio, osteopathy, chiropractic and acupuncture
  • $100 per night in-patient cash benefit, up to 20 nights
  • Prescription drugs, vaccinations, glasses or contacts, home nursing and ambulance covered

Our Values

  • Get things done; every day matters
  • Transparency and honesty, especially when it is hard
  • High standards for our own work and each other's

You Are

  • Fluent in German and English
  • A seasoned developer with more than 2 years of experience building production agents
  • AI-native in production: you have shipped agentic features real users rely on and have opinions on retrieval, evals, tool design and model limits
  • A builder first: you would rather ship a rough v1 today than spend weeks planning the perfect one
  • Up to date with new AI models and research
  • Writing almost all of your code with AI
  • Used to working independently and taking full responsibility for your area, also after it goes live
  • Comfortable talking to customers and turning their input into product decisions
  • Quick to learn and a generalist rather than a specialist

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