{"id":2362801,"url":"https://alion.io/job/muehlemannpopp-ag-c-developer","title":"C# Developer","company":{"id":2540886,"name":"mühlemann+popp AG","domain":"muehlemann-popp.ch","url":"https://alion.io/company/muehlemann-popp","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"PeopleForce","truth_index":null},"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":["Bucharest, Romania"],"countries":["RO"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":38000,"max_usd":75000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":11},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ASP.NET Core","optional":false},{"name":"C#","optional":false},{"name":"Clean Architecture","optional":false},{"name":"Copilot","optional":false},{"name":"Cursor","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"Go","optional":false},{"name":"Jira","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-12T16:06:54Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-12T16:06:54Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"C# / .NET Developer - Digital Company Building at m+p\nAbout Us\nmühlemann+popp (m+p) is a digital company builder based in Zurich. Since 2010, we have been launching and scaling industry-leading web and mobile-based companies-including names like sobrado.ch, bontique.ch, evenito.com, and realmatch360.ch.\nOur team of ~50 operates out of Zurich and Warsaw. We don’t just build software; we build businesses. We prioritize pragmatic engineering, clean architecture, and a strong sense of product ownership.\nThe Role: Leading the PeakJet Evolution\nWe are looking for a C# Developer to take a lead role in the modernization of PeakJet, a premium booking and flight management platform for business jets (an m+p venture backed by airline industry veterans).\nYour mission is to handle the architectural evolution of the platform, migrating it from a legacy Virto Commerce v2 setup to a modern v3 (.NET 8) ecosystem. This isn't just a maintenance gig; it's a refactoring of complex logic for seat booking and auxiliary services in the high-stakes world of private aviation.\nIdeal Candidate Profile (IMPORTANT for Overall Fit)\nPolyglot Mindset: Deeply skilled in C# AND at least one other backend language (Python, Node.js, Go, etc.).\n\nExperienced: 5+ years of professional software development experience.\n\nAI-Native: Expert at using AI coding tools (Cursor, Copilot, etc.) to accelerate delivery.\n\nHigh Energy & Passionate: Has uncommon hobbies, is a public speaker, or volunteers-we value people with a \"spark.\"\n\nIdeal Candidate Profile (Project Specifics)\nCompany Builder Mentality: You care about the \"why\" behind the code and how it drives the business forward.\n\nMigration Specialist: You enjoy the challenge of moving legacy enterprise systems into modern, modular frameworks.\n\nClean Architecture: You are passionate about decoupled backend services and SOLID principles.\n\nYour Responsibilities\nArchitectural Migration: Lead the technical transition of the PeakJet backend to the modern Virto Commerce v3 framework.\n\nCore Module Refactoring: Rebuild and optimize custom flight-related modules, specifically for Seat Booking and Auxiliary Services.\n\nEngineering Excellence: Maintain and extend modular architectures, ensuring high performance and scalability.\n\nStakeholder Collaboration: Work closely with our CTO (Silvan) and external airline executives to translate business requirements into technical solutions.\n\nAI Productivity: Leverage AI tools to maintain high code quality and streamline development workflows.\n\nRequirements - Hard Skills\nC# Mastery: Strong portfolio of .NET projects, specifically with .NET Core / modern .NET versions.\n\nVirto Commerce: Direct experience with Virto Commerce (v2 or v3) is a major plus.\n\nWeb API & Backend: Expertise in ASP.NET Core and building robust, scalable APIs.\n\nData & Migrations: Solid experience with relational databases (SQL Server, PostgreSQL) and complex data migrations.\n\nDevOps: Proficiency with Git workflows and containerization using Docker.\n\nPragmatic Mindset: Ability to balance \"perfect code\" with the need to ship and scale a business.\n\nThe OfferLocation: Hybrid role based in Warsaw.\nContract: B2B or Business Incubator - guaranteed load with 30 days notice period.\n Rate: €25-€40/h (approx. €6,000/month gross), depending on skill level.\n Perks:\n$77/month Medical & Sport budget.\n$100 Birthday bonus.\n$1,000 Loyalty bonus (after 3 years).\nAnnual Summer Camp (European cities/beach locations).\nGrowth: 3 dedicated education days/year + budget for courses and conferences.\nWarsaw Hub: Monthly team lunches, spring events, and year-end dinners.\n Why m+p?Because we use AI tools not just to build products-but to evolve how we work.\nBecause we value output and impact over Jira tickets.\nBecause we are small enough to move fast, but established enough to build things that last.","description_format":"text","description_chars":3840,"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":[]},"benefits":[],"hiring_locations":[{"name":"Romania","iso":"RO","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Commerce","Software","Digital Goods"],"lifecycle":[{"event":"open","at":"2026-10-12T16:06:54Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":37,"reasons":["conf:2","win:early"],"computed_at":"2026-10-12T18:10:15Z"},"pay":null,"html_url":"https://alion.io/job/muehlemannpopp-ag-c-developer","json_url":"https://alion.io/job/muehlemannpopp-ag-c-developer.json","meta":{"generated_at":"2026-10-12T18:10:15Z","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":29260,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":2540886},"rest":"https://alion.io/mcp/rest/get_company?id=2540886"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmuehlemannpopp-ag-c-developer"},{"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%2Fmuehlemannpopp-ag-c-developer"},{"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%2Fmuehlemannpopp-ag-c-developer"},{"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/muehlemannpopp-ag-c-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmuehlemannpopp-ag-c-developer"}]}