Senior Software Engineer II

Requisition Number: 2343888
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.
Primary Responsibilities:

• Design, develop, test, deploy, and maintain scalable, high quality software solutions across front end, back end, and cloud native components
• Own complex features and services end to end, from technical design and implementation through production support and optimization
• Build and integrate AI/ML enabled capabilities into applications and cloud native platforms, including secure access to models, data pipelines, and inference endpoints through well designed APIs
• Develop and operate cloud native and platform services that support reliability, scalability, security, and efficient delivery
• Collaborate with product, UX, architecture, and cross functional teams to translate business and user needs into effective technical solutions
• Apply solid software engineering practices, including code quality, automated testing, security, performance, observability, and operational excellence
• Troubleshoot and resolve complex issues across distributed systems, including production incidents and performance bottlenecks
• Review designs and code, providing guidance to ensure adherence to standards, patterns, and best practices
• Mentor junior engineers and contribute to team growth, knowledge sharing, and continuous improvement
• Evaluate and adopt new technologies, tools, and AI approaches to improve solution quality, developer productivity, and business outcomes
• 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:

• Experience or knowledge in the following:
  • Frontend: Angular (TypeScript), HTML5, CSS3, Web Components, RxJS)
  • Backend: Node.js (TypeScript), modular architecture, streaming I/O, event driven patterns
  • Communication: Experience with WebSockets, pub/sub, and message queues
  • Data heavy UI: Large tables with AG Grid and charting with Highcharts (or similar)
  • Testing: Cypress + Cucumber (BDD), unit tests (Node.js native), coverage, mocks
  • Auth & Security: OAuth/JWT flows, secure practices, input validation, schema enforcement, OWASP best practices
  • Cloud & Delivery: Experience on Azure/AWS/GCP; CI/CD pipelines, feature flags, CDN/asset strategy
  • Tooling & OS: Linux proficiency; Visual Studio Code; strong debugging (DevTools, sourcemaps)
  • Performance: Bundle optimization, lazy loading
  • Ways of Working: Agile/Scrum, clear communication, PR reviews, documentation

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.