{"id":4214381,"url":"https://alion.io/job/thermo-fisher-scientific-senior-software-engineer-c-net-core-api-development","title":"Senior Software Engineer — C# (.NET Core) | API Development","company":{"id":7922,"name":"Thermo Fisher Scientific","domain":"thermofisher.com","url":"https://alion.io/company/thermo-fisher-scientific","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":82,"open_postings":377,"ghost_share":0,"stale_share":0.729,"repost_share":0.008,"time_to_fill_p50_days":31,"computed_at":"2026-11-12T10:38:37Z"}},"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":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Agile","optional":false},{"name":"C#","optional":false},{"name":"Docker","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"GitHub","optional":false},{"name":"GitLab","optional":false},{"name":"Kubernetes","optional":false},{"name":"MariaDB","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Rest API","optional":false},{"name":"Scrum","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-11-12T00:00:00Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-13T02:05:42Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Work Schedule\nStandard (Mon-Fri)Environmental Conditions\nOfficeJob Description\nExperience Level: 6-9 Years\nTeam: Data Governance and Analytics\nOrganization: Data, AI, and Visualization (DAIV), Global Software R&D\nAbout the team\nThe Data Governance and Analytics Team is part of Data, AI, and Visualization (DAIV) within our global software R&D organization. We are a diverse, distributed team with colleagues across France and the Netherlands.\nWe bring digital technology into our products, solutions, and services, enabling data extraction, analysis, and connectivity. We develop software that supports data governance by managing data definitions, improving data quality, and making data more usable and useful. Our work prepares the organization for the age of AI, supports data-driven design, and enables value creation from data.\nAbout the role\nWe are seeking a highly skilled Senior Software Engineer specializing in C# (.NET Core) and robust API Development. In this role, you will design, build, and scale high-performance backend microservices and secure, enterprise-grade RESTful APIs. You will work closely with cross-functional architecture, product, and platform teams to deliver scalable services that power our core product ecosystem and support seamless system integration.\nKey Responsibilities\nDesign, development, and lifecycle management of scalable, secure, and well-documented RESTful APIs and microservices using C# and .NET Core.\nDesign efficient data access layers, database schemas, and LINQ queries using Entity Framework, ensuring optimal performance, change tracking, and migration management.\nDesign, develop, test, and maintain C# software libraries and reusable components supporting data extraction, analysis, connectivity, and governance.\nTranslate functional and technical requirements into clear software designs and implementations.\nDevelop components that support consistent data definitions, validation, and data quality.\nIdentify opportunities to reuse existing software and reduce duplication across products and projects.\nSupport the integration of libraries and components into applications and engineering workflows.\nDevelop and maintain automated tests to validate functionality and prevent regressions.\nContribute to build pipelines, test automation, and automated deployment using GitLab or GitHub.\nApply secure development practices and support DevSecOps activities within the development lifecycle.\nInvestigate defects, troubleshoot integration issues, and improve software reliability.\nMaintain technical documentation and clear runbooks covering component interfaces, configuration, integration dependencies, and usage.\nCollaborate with software architects and engineers across the wider R&D organization.\nEstablish strong reliability practices (logging/monitoring, retries/backoff, idempotency, concurrency controls, safe cleanup, traceability).\nMentor engineers through code reviews, best practices, and technical leadership.\nWork effectively within an Agile Scrum / SAFe framework, participating in backlog refinement, sprint planning, technical estimation, PI planning, reviews, retrospectives, and cross-team coordination to support predictable and high-quality delivery.\nRequired Skills\nStrong Working knowledge of C#, .NET Core and object-oriented software development with API development, Database experience.\nExperience integrating shared libraries or components across multiple applications.\nExperience with both relational and non-relational databases (e.g., MariaDB, MongoDB, PostgreSQL, SQL Server).\nProven experience designing, building, versioning, and securing RESTful APIs at scale.\nAbility to develop and maintain modular, reusable software components.\nUnderstanding of software testing, debugging, and version-control practices.\nExperience working in an agile DevOps environment.\nExperience using GitLab or GitHub for source control and collaborative development.\nFamiliarity with build pipelines, automated testing, and automated deployment.\nUnderstanding of containerization concepts, with familiarity with technologies such as Docker, K8s, Helm, etc\nAbility to collaborate effectively with colleagues in a distributed international team.\nWorking knowledge of Agile delivery frameworks, including Scrum and SAFe, with experience operating effectively in sprint-based and cross-team planning environments.\nStrong communication and stakeholder management skills, with the ability to work effectively across global, cross-functional teams.\nExperience operating in structured product-development environments with strong quality, compliance, and delivery expectations\nPreferred Qualifications\nBachelor’s or master’s degree, preferably in a technical or scientific discipline.\n6+ years of software engineering experience with a strong focus on C# and .NET Core and object-oriented software development with API development, Database 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now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":31,"reasons":["conf:2","win:early","comp:brand"],"computed_at":"2026-11-13T04:24:01Z"},"pay":null,"html_url":"https://alion.io/job/thermo-fisher-scientific-senior-software-engineer-c-net-core-api-development","json_url":"https://alion.io/job/thermo-fisher-scientific-senior-software-engineer-c-net-core-api-development.json","meta":{"generated_at":"2026-11-13T04:24:01Z","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 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