Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together.
We are looking for a Full Stack C# Developer (Grade 26) with 4+ years of experience in building scalable web applications using .NET technologies, modern frontend frameworks, and complementary expertise in Python and AI concepts. The role involves end-to-end ownership of features, collaboration with cross-functional teams, and contribution to AI-enabled solutions.
Primary Responsibilities:
- Design, develop, and maintain full stack applications using C#, .NET Core/NET 6+, and modern frontend frameworks
- Build and integrate RESTful APIs and backend services
- Develop responsive, user-friendly interfaces in collaboration with UI/UX teams
- Work with Python-based components for data processing, analytics, or AI integration
- Model inference and API-based AI services
- Intelligent automation or recommendations
- Write clean, maintainable, and well-documented code following coding standards
- Participate in agile activities including sprint planning, reviews, and retrospectives
- Conduct unit testing, debugging, and performance optimization
- Collaborate with DevOps teams on deployments, CI/CD pipelines, and cloud environments
- Ensure application security, scalability, and reliability
- Continuously learn and apply emerging technologies, especially in AI and cloud ecosystems
- Comply with the terms and conditions of the employment contract, company policies and procedures, and any and all directives (such as, but not limited to, transfer and/or re-assignment to different work locations, change in teams and/or work shifts, policies in regards to flexibility of work benefits and/or work environment, alternative work arrangements, and other decisions that may arise due to the changing business environment). The Company may adopt, vary or rescind these policies and directives in its absolute discretion and without any limitation (implied or otherwise) on its ability to do so
Required Qualifications:
- 4+ years of hands-on experience in full stack development
- Solid proficiency in C# and .NET (ASP.NET Core, Web API, MVC)
- Experience with frontend technologies
- Experience with databases
- Relational: SQL Server, PostgreSQL, or MySQL
- Foundational understanding of AI/ML concepts, including:
- Data preparation and basic modeling concepts
- Libraries such as NumPy, Pandas, scikit-learn, or use of AI APIs
- Familiarity with Git and source control workflows
Preferred Qualification:
- Basic knowledge of NoSQL
At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.
Skills Required
- 4+ years of hands-on experience in full stack development
- Proficiency in C# and .NET (ASP.NET Core, Web API, MVC)
- Experience with frontend technologies
- Experience with Python for data processing, analytics, or AI integration
- Foundational understanding of AI/ML concepts and libraries (NumPy, Pandas, scikit-learn) or use of AI APIs
- Experience with relational databases (SQL Server, PostgreSQL, or MySQL)
- Familiarity with Git and source control workflows
- Basic knowledge of NoSQL
Optum Compensation & Benefits Highlights
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Healthcare Strength — Official materials highlight copay and HSA medical plan choices with in‑network preventive care at 100%, prescription coverage, and low/no‑cost virtual visits, plus company HSA contributions. Dental preventive services are 100% in network, and mental health resources include an EAP and premium Calm access.
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Parental & Family Support — Programs include six weeks paid parental leave, up to two weeks paid caregiver leave, and Bright Horizons back‑up care with enhanced family supports. Adoption assistance up to $10,000 for full‑time employees reinforces family‑oriented benefits.
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Equity Value & Accessibility — Financial benefits include an Employee Stock Purchase Plan at a 10% discount, expanding access to equity ownership.
Optum Insights
What We Do
Optum, part of the UnitedHealth Group family of businesses, is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together. At Optum, we support your well-being with an understanding team, extensive benefits and rewarding opportunities. By joining us, you’ll have the resources to drive system transformation while we help you take care of your future. We recognize the power of connection to drive change, improve efficiency and make a difference in health care. Join a team where your skills and ideas can make an impact and where collaboration is key to creating technology that produces healthier outcomes.
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Optum Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Optum has three workplace models that balance the needs of the business and the responsibilities of each role. These models, core on‑site (5 days/week), hybrid (4 days/week) and telecommute or fully remote, vary by country, role and location.
