{"id":1998753,"url":"https://alion.io/job/mellon-group-senior-net-developer","title":"Senior .NET Developer","company":{"id":55579,"name":"Mellon Group","domain":"mellongroup.com","url":"https://alion.io/company/mellon-group","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":84,"open_postings":19,"ghost_share":0,"stale_share":0.632,"repost_share":0,"time_to_fill_p50_days":27,"computed_at":"2026-10-10T05:45:15Z"}},"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":["Athens, Greece"],"countries":["GR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":28000,"max_usd":82000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6328},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"C#","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"SQL","optional":false},{"name":"Azure","optional":true},{"name":"Blazor","optional":true},{"name":"CI/CD","optional":true},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-07T10:13:18Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-12T03:53:52Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Mellon Technologies, the parent company of Mellon Group of Companies, was founded in 1994 in Athens. Our offering consists of specialized technology solutions, contact centre and business process outsourcing services, to serve the increasing needs of financial institutions and organizations with strong consumer transactions business, such as Retail Banks, Public Utilities, Telecommunications Providers and large Private Companies.\nMellon Technologies SA, seeks to hire a Senior .NET Developer (with Architecture & Team Leadership Skills)\nPosition Summary\nWe are looking for a highly skilled Senior .NET Developer who combines strong hands-on development abilities with advanced competencies in analysis, solution design, and technical leadership. The ideal candidate will play a key role in guiding the development team, ensuring high-quality deliverables, and communicating effectively with stakeholders and clients.\nKey Responsibilities\nLead the design and development of backend solutions using C# and .NET technologies\nConduct system analysis, propose architectural improvements, and ensure best practices\nCollaborate with product owners, business analysts, and clients to understand requirements and translate them into technical solutions\nMentor and guide junior developers, review code, and promote software development standards\nParticipate in planning, estimation, and technical decision-making processes\nEnsure system performance, scalability, and reliability through proper design and implementation\nRequirements\n5+ years of professional experience in backend development with Microsoft technologies (C#, .NET / .NET Core)\nStrong understanding of software architecture, design patterns, and clean coding principles\nExperience with RESTful APIs, Entity Framework, and SQL databases\nAbility to analyze complex requirements and translate them into technical specifications\nExcellent communication skills and ability to interact with clients and internal stakeholders\nProven experience in leading or mentoring development teams\nNice to Have\nFull-stack experience with Razor, Blazor, or other Microsoft web technologies\nExperience with cloud platforms (Azure preferred)\nFamiliarity with DevOps practices and CI/CD pipelines\nKnowledge of frontend frameworks (e.g., JavaScript, TypeScript) is a plus\nSoft Skills\nStrong problem-solving mindset and ownership attitude\nAbility to work effectively both independently and in a team environment\nProactiveness, attention to detail, and a drive for continuous improvement\nBenefits\nOpportunities to evolve into an international hyper-technological working environment\nMulticultural and excellent working environment\nLeading-edge technology\nContinuous 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