Fullstack or Backend Developer (AI-First Systems Design)

hausverwalter.ai • Romania
Remote
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AI Summary

We're seeking experienced Fullstack or Backend Developers with a strong systems-design mindset to join our fully remote team. You'll develop and maintain our web application across the full stack, build robust pipelines for document and email processing, and operate in an AI-first development setup powered by Claude/Cursor. Key requirements include 3+ years of production web backend experience, solid database design skills, and comfort with queues and background jobs.

Key Highlights
AI-first development setup using Claude/Cursor
Fullstack or Backend focus with systems-design mindset
3+ years production web backend experience
Remote work with optional office visits in Worms, Germany
Permanent employment contract via Deel (Employer of Record)
Salary $1000-$3000 per month before taxes
Key Responsibilities
Develop and maintain web application across full stack from UI to backend logic
Build and ship product features across modules: ticketing, documents, knowledgebase, team communication
Connect frontend and backend through clean APIs and well-structured data flows
Build and optimize robust pipelines for document and email processing and 3rd-party integrations
Build and optimize agents for growing template library
Operate in AI-first development setup powered by Claude/Cursor
Manage version control and team collaboration via GitHub
Technical Skills Required
TypeScript Next.js React Tailwind CSS shadcn/ui
Benefits & Perks
100% remote work
Permanent employment contract via Deel (Employer of Record)
Salary $1000-$3000 per month before taxes
Very flexible working hours
Freedom to design and implement your own features

Job Description


We're seeking experienced Fullstack or Backend-Developers with a strong systems-design mindset to join our fully remote team. If you like complexity, enjoy thinking hard about data, scale and reliability, want to implement AI-solutions and enjoy working with Claude/Cursor/Codex, this could be the right role for you.

What You'll Do

  • Develop and maintain our web application across the full stack — from UI to backend logic
  • Build and ship product features across our modules: ticketing, documents, knowledgebase, team communication
  • Connect frontend and backend through clean APIs and well-structured data flows
  • Build robust pipelines for document- & email processing and 3rd-party integrations
  • Build and optimize agents for our growing template library
  • Operate in an AI-first development setup powered by Claude/Cursor
  • Manage version control and team collaboration via GitHub


Our techstack

  • Backend: TypeScript
  • Frontend: Nextjs, React, Tailwind, shadcn/ui
  • Database: We don't want to disclose this publicly at the moment


About Us

We are a German automation agency turned into a SaaS with our product hausverwalter.ai.

Most Germany property managers work with 5-10 software tools daily. Our goal is to replace them all, while also building autonomous agents right into the software.

For a closer look at what we're building, check out our YouTube channel — heads up, it's in German.

The role is fully remote – though you're always welcome to drop by our office in Worms, Germany. You'll fit in well if you're after more than just the "freedom part" of remote work and are truly eager to roll up your sleeves and grow alongside us for the long haul.

Salary

$1000 - $3000 per month before taxes. There will be room for growth and promotion in the years ahead

What We Offer

  • 100% remote work
  • AI-first mindset
  • As many Codex/Claude/Cursor-Subscriptions as you need
  • Permanent employment-contract in your country of residence through our partner Deel (Employer of Record)
  • A software that our customers are genuinely excited about
  • Modern tech stack – you'll work exclusively with cutting-edge technologies
  • Focus on building, instead of long meetings
  • Job security: Everyone we bring on is meant to grow with us over the long term. Every hire is aimed at permanent employment.
  • Strong pay & career prospects: We'll continue growing and expanding in the years to come. To do that, we need more experts and/or leaders on board.
  • Very flexible working hours
  • The freedom (and responsibility) to design and implement your own features


If a long-term remote position at a structured, growing company sounds like what you're after, we'd be glad to receive your application.

  • 3+ years building production web backends or full-stack apps — you’ve owned schema design, indexing, and query performance, not only CRUD on existing models
  • Solid backend and systems-design experience – you can design a database from the ground up (tables, relationships, indexes) and reason about database load, query performance and data growth, not just write CRUD against an existing schema
  • Comfort with queues, background jobs and long-running workflows, and the judgment to make the hard design trade-offs they involve
  • You treat reliability, scalability and maintainability as default concerns. If you've read "Designing Data-Intensive Applications" (Kleppmann) – or simply think that way – you'll feel right at home here
  • Solid English for async remote collaboration; German not required
  • You work autonomously and take full ownership of your tasks
  • Comfortable working under performance pressure
  • Quick on the uptake and a disciplined approach to your work


Please note that the application form on the next page is in German. That said, German language skills are not required for this role.

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