Senior Software Engineer II

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 seeking a highly skilled and experienced Senior Software Engineer professional with deep expertise in .NET full stack development, cloud platforms (preferably Azure or AWS), and DevOps practices. The ideal candidate will be a hands-on technologist with a passion for building scalable, secure, and high-performance applications, and mentoring junior engineers.

Primary Responsibilities:

• Design, develop, and maintain enterprise-grade web applications using .NET Core/ASP.NET, C#, and modern front-end frameworks (e.g., Angular, React, or Blazor)
• Support and maintain tools for deployment, monitoring, and operations
• Assess and interpret customer needs and requirements
• Architect and implement cloud-native solutions leveraging Azure/AWS services such as App Services, Functions, Containers, and CI/CD pipelines
• Lead DevOps initiatives including infrastructure as code (IaC), automated deployments, monitoring, and incident response
• Collaborate with cross-functional teams including Product, QA, and UX to deliver high-quality software solutions
• Conduct code reviews, enforce best practices, and mentor junior developers
• Drive, design, implement, and maintain deployment automation from code check – in to production
• Optimize application performance, scalability, and security
• Stay current with emerging technologies and propose adoption wherever beneficial
• 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:

• 10+ years of professional experience in software development
• Hands-on experience with cloud platforms (Azure preferred, AWS/GCP acceptable)
• Experience with microservices architecture and RESTful APIs
• Solid experience with front-end technologies: HTML5, CSS3, JavaScript, TypeScript, and frameworks like Angular or React
• Solid understanding of software design patterns, SOLID principles, and clean code practices
• Familiarity with Agile/Scrum methodologies
• Solid proficiency in .NET Core, ASP.NET MVC/Web API, C#, and Entity Framework
• Expertise in DevOps tools and practices: GitHub Actions, Azure DevOps, Jenkins, Docker, Kubernetes, Terraform/ARM/Bicep
• Proven excellent problem-solving, communication, and leadership skills

Preferred Qualifications:

• Microsoft Certified: Azure Developer Associate or equivalent certifications
• Experience with distributed systems and event-driven architecture
• Experience with logging and monitoring tools (e.g., ELK, Dynatrace, Splunk, Prometheus, Grafana, App Insights)
• Exposure to security best practices and compliance standards

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.