{"id":3568755,"url":"https://alion.io/job/tech-mahindra-senior-net-middleware-developer","title":"Senior .NET Middleware Developer","company":{"id":5484,"name":"Tech Mahindra","domain":"techmahindra.com","url":"https://alion.io/company/tech-mahindra","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","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":["Plano, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":60,"max":null,"currency":"USD","period":"hour","gross":null,"usd_annual":120000},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ASP.NET Core","optional":false},{"name":"C#","optional":false},{"name":"FHIR","optional":false},{"name":"HL7","optional":false},{"name":"Rest API","optional":false}],"status":"live","first_seen_at":"2026-10-31T14:03:13Z","employer_posted_date":"2026-10-31","last_verified_at":"2026-11-03T22:40:09Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Job Description\n\nSkill Set :\nHealthcare Business\n\nTotal Experience :\n6.00 to 10.00 Years\n\nNo of Openings :\n1\n\nJob Post Date :\n15/10/2026\n\nJob Expiry Date :\n27/11/2026\n\nDomain :\nIT\n\nLocation :\nPLANO [United States]\n\nJob Reference No :\n4113196\n\nJob Summary\nRole: Senior .NET Middleware Developer\nLocation: Remote\nSubcon Rate: $60/hr C2C Max\nThe pay range for this role is $80,000- $100,000 per annumincluding any bonuses or variable pay. Tech Mahindra also offers benefits like medical, vision, dental, life, disability insurance and paid time off (including holidays, parental leave, and sick leave, as required by law). Ask our recruiters for more details on our Benefits package. The exact offer terms will depend on the skill level, educational qualifications, experience and location of the candidate.\nJob Description:\nSenior .NET Middleware Developer, Healthcare Interoperability (FHIR / ePA)\nPosition: Senior .NET Middleware Developer / Integration Engineer\nExperience: 7 - 12 years\nDomain: US Healthcare / Medicaid / Healthcare Interoperability\nProgram: CMS 0057 Electronic Prior Authorization (ePA)\nTechnology: .NET Core / ASP.NET Core / C# / REST APIs / HL7 FHIR\nRole Overview\nWe are seeking an experienced Senior .NET Middleware Developer to design, develop, integrate, and support middleware services for a large-scale healthcare interoperability program supporting multiple US Medicaid state implementations.\nThe middleware platform will facilitate secure communication, orchestration, data transformation, and transaction processing between healthcare payer systems, utilization management applications, FHIR based interoperability platforms, and external healthcare technology partners.\nThe candidate must possess strong technical expertise in .NET development, API integrations, healthcare data exchange, and distributed application architecture.\nExperience implementing healthcare interoperability solutions involving CMS 0057, HL7 FHIR, and Electronic Prior Authorization is highly desirable.\nKey Responsibilities\nMiddleware Development & Integration\nDesign and develop scalable middleware applications using C#, .NET 8+, and ASP.NET Core.\nDevelop RESTful APIs and integration services connecting multiple healthcare applications.\nBuild orchestration services coordinating transactions across payer systems, UM platforms, and interoperability APIs.\nImplement synchronous and asynchronous communication mechanisms.\nDevelop configurable transformation services supporting JSON, XML, CSV, and flat file formats.\nBuild file-based integration services supporting SFTP transfers, file validation, acknowledgments, and exception handling.\nImplement transaction tracking, retry mechanisms, error handling, and reconciliation processes.\nDevelop reusable integration components supporting multiple Medicaid state implementations.\nTech Mahindra is an Equal Employment Opportunity employer. We promote and support a diverse workforce at all levels of the company. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex, age, national origin, or disability. All applicants will be evaluated solely based on their ability, competence, and performance of the essential functions of their positions with or without reasonable accommodations. Reasonable accommodation also are available in the hiring process for applicants with disabilities. 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