{"id":897004,"url":"https://alion.io/job/pairfinance-senior-software-engineer-ruby-on-rails-fmd","title":"Senior Software Engineer - Ruby on Rails (f/m/d)","company":{"id":696223,"name":"PAIR Finance","domain":"pairfinance.com","url":"https://alion.io/company/pairfinance","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Personio","truth_index":{"grade":"C","score":57,"open_postings":10,"ghost_share":0.7,"stale_share":0,"repost_share":0.1,"time_to_fill_p50_days":null,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Berlin, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":68000,"max_usd":120000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":62},"experience_years_min":5,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Claude Code","optional":false},{"name":"Go","optional":false},{"name":"Python","optional":false},{"name":"Ruby","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"Agile","optional":true},{"name":"AWS","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"GraphQL","optional":true},{"name":"Java","optional":true},{"name":"JavaScript","optional":true},{"name":"Kanban","optional":true},{"name":"Linux","optional":true},{"name":"Node JS","optional":true},{"name":"Rust","optional":true},{"name":"Scrum","optional":true},{"name":"Terraform","optional":true},{"name":"Vue.js","optional":true}],"status":"live","first_seen_at":"2026-09-07T15:34:47Z","employer_posted_date":"2026-09-07","last_verified_at":"2026-11-01T06:46:28Z","board_verified":true,"closed_at":null,"days_open":54,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":54},"description":"Are you ready to change the market?\nAt 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-Courtdebt collection.\nYour Responsibilities:\nOwn a clear scope end-to-e nd: 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)\nDesign, build, and run POCs quickly to de-risk decisions before committing to a full build\nDevelop, optimize, and maintain our core backend applications and services\nWork onhigh-level architecture to ensure scalability, performance, availability, and security\n Go deep on the In-Court/After-Court domain (the legal and procedural knowledge behind ourcollection processes is a core part of the job, not a side detail) \n\nCollaborate closely with product to shape the roadmap and unlock further company growth\n Work AI-augmented: you already use (or are ready to adopt) tools like Claude Code as part of how you build, review, and ship\nHelp evolve and enhance our AI-based platform\nStay current with industry trends and bring ideas back to the team\nWhat we're looking for:\n5+ years of professional software engineering experience, including 1+ year on medium-to-largeprojects\n\nStrong backend experience in Ruby (Ruby on Rails): this is our core stack, and required for therole\n\nLanguage-agnostic mindset: you pick the right tool for the job (hands-on experience with Go and/or Python is a big plus) \nProven ability to work independently: scope, drive, and deliver a project with minimal hand-holding\nExperience with TDD and CI/CD\nA track record of writing clean, maintainable backend code and solid infrastructure\nComfortable in an Agile environment (Scrum, Kanban)\nGenuine interest in working with, and building on top of, AI-based technologies\nSolid English communication skills\nNice to have:Experience in the financial or accounting industry \nFrontend development experience, especially Vue.js and GraphQL knowledge\nInfrastructure experience: AWS, Terraform (IaC), Docker, Linux\nKnowledge of other backend technologies, such as Node.js, Rust, or Java\n\nOur offer for you:\nFor 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\nWe offer visa sponsorship\nThriving, financially stable company\nStrong experienced international team to support and mentor you along the way, smooth onboarding process\nInternational team of 30+ nationalities with professionals and experts\nFlat hierarchy, transparent and appreciative feedback culture, monthly all hands meetings, annual feedback and evaluation cycle, regular 1-on-1s with your lead\nWell-structured onboarding process as well as supportive and welcoming colleagues\nPersonal learning & development budget as well as German and English language courses\nUnlimited employment contract, flexible working hours and 28 vacation days for your work-life balance\nCompany pension plan, partly covered Deutschlandticket (public transport) and access to “Corporate Benefits”-voucher platform to ensure your full well-being\nFun company summer and Christmas parties as well as regular team events\nThis 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\nWho is your contact person?\nYour 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.","description_format":"text","description_chars":3960,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Flexible schedule","Hybrid work"],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Debt Collection & Recovery"],"lifecycle":[{"event":"open","at":"2026-09-14T09:56:46Z"}],"visa":[],"liveness":{"score":20,"band":"cold","label":"Long shot","p_open":1,"p_active":0.455,"p_room":0.45,"age_days":54,"expected_fill_days":29,"reasons":["conf:3","stale_co","win:tail"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/pairfinance-senior-software-engineer-ruby-on-rails-fmd","json_url":"https://alion.io/job/pairfinance-senior-software-engineer-ruby-on-rails-fmd.json","meta":{"generated_at":"2026-11-01T07:13:12Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":11257,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":696223},"rest":"https://alion.io/mcp/rest/get_company?id=696223"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpairfinance-senior-software-engineer-ruby-on-rails-fmd"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fpairfinance-senior-software-engineer-ruby-on-rails-fmd"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fpairfinance-senior-software-engineer-ruby-on-rails-fmd"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/pairfinance-senior-software-engineer-ruby-on-rails-fmd\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpairfinance-senior-software-engineer-ruby-on-rails-fmd"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":897004}},{"tool":"search_jobs","arguments":{"company":"pairfinance.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":897004},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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