{"id":4272341,"url":"https://alion.io/job/ey-digital-factory-backend-software-engineer-net-senior-associate","title":"Digital Factory - Backend Software Engineer (.NET) - Senior Associate","company":{"id":2859,"name":"EY","domain":"ey.com","url":"https://alion.io/company/ey-com","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Luxembourg City, Luxembourg"],"countries":["LU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Rest API","optional":true}],"status":"live","first_seen_at":"2026-11-13T18:07:27Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-13T18:07:27Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"At EY, we’re all in to shape your future with confidence.\nWe’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.\nJoin EY and help to build a better working world.\nRole Overview\nThe Software Engineer (.NET) is responsible for designing, building, and operating secure, scalable, and maintainable web applications using the .NET ecosystem. Acting as a key contributor within agile delivery teams, the role collaborates closely with business stakeholders, delivery leads, architecture, UX, backend, frontend, data, and platform teams to translate functional needs into reliable and high-quality software increments.\nAt Senior Associate level, the role independently owns complex .NET features and contributes to technical decisions, quality and production reliability.\nKey Responsibilities\nOwn complex application features from refinement through deployment and support, coordinating dependencies and resolving technical issues independently.\nContribute actively to architecture decisions, code reviews, reusable components, performance improvements and the coaching of less-experienced engineers.\nApplication Development & Delivery\nDesign, develop, and implement .NET-based solutions, including UI components, application flows, and reusable services.\nContribute to end-to-end application delivery across build, run, support, and maintenance activities.\nDeliver working software iteratively by implementing features, fixing bugs, closing development tickets, and supporting sprint commitments.\nArchitecture, Quality & Engineering Practice\nApply software engineering principles to ensure scalability, maintainability, reliability, and long-term technical quality.\nParticipate in architecture discussions and contribute to technical decision-making across the application lifecycle.\nConduct and participate in code reviews to ensure readability, maintainability, consistency, and alignment with standards.\nPerformance, Reliability & Operations\nOptimize backend performance and scalability across .NET applications.\nDesign resilient application behavior using patterns such as caching, retries, idempotency, and appropriate error handling.\nInstrument applications with logging, metrics, monitoring, and diagnostics to support operational reliability.\nSecurity, Compliance & Collaboration\nApply secure coding practices across backend and data interaction layers.\nSupport authentication, authorization, secrets management, secure data handling, and dependency management practices.\nFollow enterprise security, privacy, regulatory, and compliance requirements.\nWhat Success in this Role Will Look Like\nDemonstrates independent ownership of complex features, strong technical judgement and measurable improvement in code quality and reliability.\nSuccess in this role is evaluated based on the ability to consistently deliver high-quality outcomes across engineering execution, collaboration, technical quality, operational reliability, and enterprise delivery expectations, including:\nConsistent delivery of working software within sprint commitments and project priorities.\nHigh-quality, readable, maintainable, and reusable .NET code.\nWork effectively as part of a team, contributing to collective success while remaining open to feedback and coaching from more experienced colleagues.\nEffective participation in code reviews, technical discussions, and continuous improvement activities.\nReliable contribution to issue resolution, feature implementation, production support, and root cause analysis.\nQualifications & Experience\nBachelor’s or Master’s degree in Computer Science, Software Engineering, Information Technology, or a related field.\nProfessional experience building solutions within the .NET ecosystem.\nProficiency in C#, ASP.NET Core and EF Core.\nExposure to Azure services, CI/CD pipelines, automated testing, and monitoring practices.\nExperience working in agile delivery environments with sprint-based execution and delivery commitments.\nAbility to participate in code reviews, follow development standards, and contribute consistently to team delivery.\nUnderstanding of application performance, troubleshooting, testing, production support, and maintainability practices.\nAwareness of secure development practices, privacy requirements, and enterprise compliance expectations.\nFluency in English, both written and spoken, with the ability to communicate effectively in a professional environment.\n4+ Years of experience are required\nPreferred Experience\nFamiliarity with API consumption patterns and integration with backend services such as REST APIs.\nExperience with refactoring, modernization, maintainability, and long-term technical quality improvements.\nExperience in integration testing.\nKnowledge of .NET Aspire.\nWhat we offer you\nAt EY, we’ll develop you with future-focused skills and equip you with world-class experiences. We’ll empower you in a flexible environment, and fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams. Learn more.\nAre you ready to shape your future with confidence? Apply today.\nTo help create the best experience during the recruitment process, please describe any disability-related adjustments or accommodations you may need.\nEY | Building a better working world\nEY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.\nEnabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.\nEY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.\nOur offer of employment is contingent upon the successful completion of a background check and pre-screening requirements. 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