Senior Backend Developer (TypeScript) – Berlin (Remote)

Be a part of OWNR!

… and help people achieve their dream of homeownership through real estate leasing. How does it work? At OWNR, we purchase our customers’ desired property, which they then lease from us. Just like with other leasing models, the advantage is that the customer doesn’t bear the full financial burden or take on major risks upfront. Instead, they can use and try out the property — whether it’s a house or apartment — over a set period of time. And if they like it, they can buy it at a pre-agreed purchase price.

This is your new job

As a Senior Backend Developer, you will:

• Architect and build high-availability, scalable backend services using TypeScript and Node.js
• Design clean APIs (REST/GraphQL) to integrate with our front-end, mobile apps, and external services (e.g. payment gateways, lease management tools)
• Collaborate across teams to translate product requirements into robust technical solutions
• Lead and mentor other engineers through code reviews, pair programming, and technical best practices
• Implement CI/CD pipelines and automation to ensure reliability and rapid deployment iterations
• Enhance system performance, maintain security and optimize database interactions (PostgreSQL, Redis etc.)
• Analyze and debug production issues and enhance system observability (logging, metrics, tracing)

Requirements

• ≥5 years of professional backend development experience with Node.js and TypeScript
• Proven track record of building production-grade services or microservices
• Expertise in API design (REST and/or GraphQL) and relational/no‑SQL databases
• Familiarity with authentication (JWT, OAuth2) and performance optimization
• Strong problem-solving skills and experience mentoring others
• Excellent English communication skills; German is a plus
• Experience in CI/CD, test automation (unit/integration), and cloud platforms (AWS, GCP, or Azure)

What we offer

• Competitive salary + flexible work arrangements
• A transparent, collaborative and supportive team culture
• Real impact developing tech that helps people realize homeownership
• Personal growth through autonomy, coaching, and skill development
• An international, diverse, and agile organization—constantly evolving

About us

OWNR is redesigning the experience of acquiring homeownership by offering transparent, flexible, and secure real estate leasing solutions. We purchase customers’ dream homes and offer them the opportunity to lease—with the option to buy at a predetermined price. With a motivated, diverse team in Berlin, Hamburg, and Rhein-Main, we’re ready to grow nationally. Join us as we bring innovation, clarity, and positivity to the path toward homeownership.

Weitere Details und Bewerbung