{"id":2058061,"url":"https://alion.io/job/cofinity-x-gmbh-senior-software-engineer-mfx","title":"(Senior) Software Engineer (m/f/x)","company":{"id":2227743,"name":"Cofinity-X GmbH","domain":"cofinity-x.com","url":"https://alion.io/company/cofinity-x","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Personio","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":["Cologne, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":68000,"max_usd":118000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":59},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Agile","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false}],"status":"live","first_seen_at":"2026-10-07T15:46:04Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-14T17:20:58Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"Our vision - your future\nCofinity-X is a joint venture founded in 2023 by BASF, BMW Group, Henkel, Mercedes-Benz, SAP, Schaeffler, Siemens, T-Systems, Volkswagen, and ZF. Established by industry experts, our company is primed for growth and is intended to be further led by professionals like yourself. Your mission\nDesign, develop, and maintain core backend services, with a focus on digital identity and wallet-related components\nImplement and operate secure, standards-compliant wallet functionality (e.g. credential issuance, verification, and storage) within our platform\nEnsure the reliability, scalability, and security of core services that other product components depend on\nCollaborate with architects and product teams to translate technical and regulatory requirements (e.g. self-sovereign identity, decentralized identifiers, verifiable credentials) into robust implementations\nContribute to API design and integration patterns for wallet and identity-related services\nParticipate in code reviews, technical design discussions, and continuous improvement of engineering practices\nMonitor, troubleshoot, and resolve issues in core services, ensuring high availability and data integrity\nStay current with relevant standards and specifications (e.g. Gaia-X, Catena-X, W3C DID/VC) and help shape their implementation through participation in working groups, expert groups and committees as required.\nYour profile\nSeveral years of experience as a backend or software engineer in an agile development environment\nHands-on experience with identity and credential technologies such as SSI, DIDs, verifiable credentials, or digital wallets is a strong plus\nStrong programming skills in (preferably) Java, or C# .NET\nSolid understanding of cryptography fundamentals, secure API design, and data protection principles\nExperience with cloud-native architectures, containerization (Docker/Kubernetes), and CI/CD pipelines\nFamiliarity with relevant standards bodies and specifications (e.g. Gaia-X, Catena-X) is beneficial\nAnalytical and structured working style with strong problem-solving skills and a collaborative, team-oriented mindset\nWhy us?\nHybrid working model\nWork-life balance with flexible working hours\nAnnual training budget for continuous professional and personal development (1.500 EUR)\nFree choice of hardware\nMonthly lunch subsidy (up to 115 EUR)\nDeutschland Ticket and Job Bike for environmentally friendly mobility options\nWorkation to work remotely from different locations within the EU\nWe offer every employee a pensions scheme (bAV) with company sponsorship\nRegular team events to strengthen cohesion and foster a positive working atmosphere\nA modern office with an impressive view of the Cologne Cathedral","description_format":"text","description_chars":2731,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Hybrid work"],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Data & Analytics","Marketplaces","Data Marketplaces, Sharing & Clean 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