InternationalSenior

Senior Software Engineer - Ruby on Rails (f/m/d)

Pair

Posted · 2w agovia arbeitnow

Are 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.

Your Responsibilities:

Own a clear scope end-to-end:

take initiative from idea to production largely independently, and lead within your team (T-shaped: you go deep on your slice, and pair with one other developer)

Design, build, and run POCs

quickly to de-risk decisions before committing to a full build

Develop, optimize, and maintain

our core backend applications and services

Work onhigh-level architecture

to ensure scalability, performance, availability, and security

Go deep on the In-Court/After-Court domain

(the legal and procedural knowledge behind our
collection processes is a core part of the job, not a side detail) 

Collaborate closely with product

to shape the roadmap and unlock further company growth

Work AI-augmented:

you already use (or are ready to adopt) tools like Claude Code as part of how you build, review, and ship

Help evolve

and enhance our AI-based platform

Stay current

with industry trends and bring ideas back to the team

What we're looking for:

5+ years

of professional software engineering experience, including 1+ year on medium-to-large
projects

  • Strong backend experience in

Ruby (Ruby on Rails)

: this is our core stack, and required for the
role

  • Language-agnostic mindset: you pick the right tool for the job (hands-on experience with

Go

and/or

Python

is a big plus) 

  • Proven ability to work independently: scope, drive, and deliver a project with minimal hand-holding
  • Experience with

TDD

and

CI/CD

  • A track record of writing clean, maintainable backend code and solid infrastructure
  • Comfortable in an Agile environment

(Scrum, Kanban)

  • Genuine interest in working with, and building on top of,

AI-based technologies

  • Solid

English

communication skills

Nice to have:

  • Experience in the

financial

or

accounting

industry 

  • Frontend development experience, especially

Vue.js and GraphQL

knowledge

  • Infrastructure experience:

AWS, Terraform (IaC), Docker, Linux

  • Knowledge of other backend technologies, such as

Node.js, Rust, or JavaOur offer for you:

  • For this senior-level role, our salary band is €77,000 - €92,000 gross per year (based on a 40-hour work week). The exact offer will reflect your experience and qualifications
  • We offer visa sponsorship
  • Thriving, financially stable company
  • Strong experienced international team to support and mentor you along the way, smooth onboarding process
  • International team of 30+ nationalities with professionals and experts
  • Flat hierarchy, transparent and appreciative feedback culture, monthly all hands meetings, annual feedback and evaluation cycle, regular 1-on-1s with your lead
  • Well-structured onboarding process as well as supportive and welcoming colleagues
  • Personal learning & development budget as well as German and English language courses
  • Unlimited employment contract, flexible working hours and 28 vacation days for your work-life balance
  • Company pension plan, partly covered Deutschlandticket (public transport) and access to “Corporate Benefits”-voucher platform to ensure your full well-being
  • Fun company summer and Christmas parties as well as regular team events
  • This role is based in

Berlin

, and we have a hybrid working policy. Modern office near Uhlandstr. is complete with fresh fruit, muesli and drinks for a comfortable and enjoyable workplace

Who is your contact person?

Your contact person for this position is Geneva Brooks. If you have any questions, please contact us directly by email ----- - we look forward to hearing from you!

For more information about PAIR Finance, please take a look at our website and our careers page.

Find Jobs in Germany on Arbeitnow