Senior Software Engineering Lead - C#, .net, reactjs, devops

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 Senior Full Stack Engineer with strong experience in building scalable web applications and backend services. The ideal candidate should have deep expertise in modern frontend development using React, strong backend engineering experience with C#, and hands-on exposure to DevOps, Containerization, and cloud platforms.

Primary Responsibilities:

• Design, build, test, and deploy high-quality web applications
• Build and maintain backend services and APIs using ASP.NET
• Maintain high standards of code quality, security, performance, and unit test coverage
• Participate in technical discussions, solution design, architecture reviews, and implementation planning
• Collaborate with cross-functional teams to research, troubleshoot, and resolve production issues
• Mentor junior engineers and support team cross-training through code reviews, technical guidance, and knowledge sharing
• Contribute to CI/CD automation, containerization, deployment pipelines, and cloud-native engineering practices
• Work effectively in an Agile environment with distributed and cross-functional teams
• 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:

• 9+ years of software development experience, including application design and delivery
• Solid experience with React and TypeScript
• Experience with C# and ASP.NET, or comparable enterprise backend technologies such as Java and Spring Boot
• Experience designing and consuming REST-based APIs
• Experience with Docker and Kubernetes
• Experience with Azure, or comparable cloud platforms such as AWS or Google Cloud Platform
• Experience with GitHub Actions, or comparable CI/CD tooling
• Experience with Cosmos DB, or comparable NoSQL databases
• Experience with unit testing, integration testing, and associated test processes
• Experience with cloud-native architecture, distributed systems, and production support practices
• Experience working in Agile/Scrum teams
• Solid understanding of frontend design principles such as form controls, layout patterns, and responsive design
• Solid understanding of object-oriented programming, data structures, algorithms, and design patterns
• Proven ability to write clean, maintainable, scalable code, and follow established coding standards
• Proven ability to work effectively under pressure in a dynamic delivery environment
• Proven ability to choose appropriate UI components and interaction patterns based on user needs, data complexity, and usability considerations

Preferred Qualifications:

• Solid experience with C# and ASP.NET
• Experience with CSS-in-JS component libraries such as MUI
• Experience with CSS Modules
• Experience with Terraform
• Experience with SonarQube or comparable code quality tooling

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.