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Senior Software Engineer

Denver, Colorado

Caring. Connecting. Growing together.

With these values to guide us, our people are committed to making a meaningful difference in the lives of those we are honored to serve.

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Senior Software Engineer

Requisition number: 2365300 Job category: Technology Primary location: Denver, CO Date posted: 06/18/2026 Overtime status: Exempt Travel: No

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.

As a Senior Software Engineer in our team, you will be part of a highly collaborative environment focused on building and optimizing modern software solutions. You will work on creating responsive, high‑performance UI components, integrating them with robust backend services, and utilizing state-of-the-art AI-assisted tools to streamline workflows and accelerate delivery. This role offers the opportunity to drive meaningful technical outcomes, solve complex problems across the full stack, and mentor other engineers in a culture of continuous learning and innovation.

You will enjoy the flexibility to telecommute* from anywhere within the U.S. as you take on some tough challenges.

Primary Responsibilities:

Build responsive, high performance UI components using React, TypeScript/JavaScript, and modern front-end libraries
Implement reusable design patterns and best practice component architectures
Optimize UI rendering, state management, and overall user experience
Integrate UI components with RESTful Spring Boot APIs, collaborating closely with backend engineering teams to refine API contracts and ensure smooth integration
Work with design teams to convert wireframes and prototypes into functional, intuitive interfaces
Consume, test, and troubleshoot Spring Boot REST APIs across the development life cycle
Debug and resolve complex issues involving UI, API, and Java services across the full application stack
Contribute minor enhancements or fixes in Java/Spring Boot services where necessary to support end-to-end features
Use enterprise-approved AI tools to streamline workflows, automate tasks, and drive continuous improvement
Evaluate emerging trends to inform solution design and strategic innovation

You'll be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role as well as provide development for other roles you may be interested in.

Required Qualifications:

Undergraduate degree or equivalent experience (or 4+ years of additional software development experience in lieu of a degree)
5+ years of professional software development experience
5+ years of experience with React (including React Hooks, state management, and component architecture) and JavaScript / TypeScript
Solid understanding of asynchronous programming and REST standards
Working knowledge of Java and Spring-based backend services

Preferred Qualifications:

Experience utilizing AI-assisted developer productivity tools (e.g., GitHub Copilot, Codex, M365 Copilot) to accelerate coding, debugging, and software delivery
Experience working with SQL and relational databases
Experience deploying or working with cloud environments (e.g., Microsoft Azure)
Experience collaborating with design teams to translate design wireframes and prototypes into production-ready front-end code
Strong full-stack debugging and troubleshooting skills across UI, API, and Java services

*All Telecommuters will be required to adhere to UnitedHealth Group's Telecommuter Policy.

Pay is based on several factors including but not limited to local labor markets, education, work experience, certifications, etc. In addition to your salary, we offer benefits such as, a comprehensive benefits package, incentive and recognition programs, equity stock purchase and 401k contribution (all benefits are subject to eligibility requirements). No matter where or when you begin a career with us, you'll find a far-reaching choice of benefits and incentives. The salary for this role will range from $91,700 to $163,700 annually based on full-time employment. We comply with all minimum wage laws as applicable.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Application Deadline: This will be posted for a minimum of 2 business days or until a sufficient candidate pool has been collected. Job posting may come down early due to volume of applicants.

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.

UnitedHealth Group is an Equal Employment Opportunity employer under applicable law and qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations.

UnitedHealth Group is a drug - free workplace. Candidates are required to pass a drug test before beginning employment.

#RPO #GREEN

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Benefits

Our mission of helping people live healthier lives extends to our team members. Learn more about our range of benefits designed to help you live well.