Lead end-to-end development of a cutting-edge AI-driven debt collection platform in Berlin (hybrid). Own complex backend projects, design scalable architectures, and deep-dive into legal debt collection processes. Drive technical decisions, collaborate with product teams, and integrate AI tools into production systems.
Key Highlights
Own end-to-end development of high-stakes backend systems in Ruby on Rails
Deep technical and domain expertise in In-Court/After-Court debt collection processes
Collaborate with AI tools (e.g., Claude Code) to enhance platform capabilities
Key Responsibilities
Design, build, and maintain core backend applications and services in Ruby on Rails
Lead end-to-end development projects from idea to production with minimal hand-holding
Develop and optimize high-level architecture for scalability, performance, availability, and security
Collaborate with product teams to shape roadmaps and drive company growth
Integrate and enhance AI-based tools into production systems
Work closely with legal and procedural domain experts to refine debt collection processes
Technical Skills Required
Ruby on Rails
Backend Development
Test-Driven Development (TDD)
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Benefits & Perks
Salary band: €77,000 - €92,000 gross per year (40-hour workweek)
Visa sponsorship
Flexible working hours, 28 vacation days, unlimited employment contract
Personal learning & development budget, German/English language courses
Company pension plan, Deutschlandticket, corporate benefits voucher platform
Modern office in Berlin with work-life balance support
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Nice to Have
Experience in financial or accounting industry
Frontend development (Vue.js, GraphQL)
Infrastructure experience (AWS, Terraform, Docker, Linux)
Knowledge of Go, Python, Node.js, Rust, or Java
Job Description
Back to all jobsSenior Software Engineer - Ruby on Rails (f/m/d)Berlin (Hybrid)Full or part-timePermanent employeeAre you ready to change the market?At PAIR Finance we're building the AI-driven platform that's redefining debt collection across Europe. We're looking for a senior software engineer who takes ownership end-to-end, is comfortable being the technical driver of a well-defined scope, and is energized by learning a deep, high-stakes domain: the legal processes around In-Court and After-Court debt collection.
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