The Role
Senior full-stack engineer owning React frontend and Java/Spring Boot backend. Build modular React components (TypeScript preferred), design and implement REST APIs and microservices, integrate with AWS services (API Gateway, IAM, S3, DynamoDB), use Kafka for eventing, apply CI/CD (GitHub Actions/CodePipeline), ensure secure API consumption (JWT/CORS), test automation, and integrate agentic frameworks like AWS Bedrock Agents within Agile teams.
Summary Generated by Built In
Requisition Number: 2354046
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 Engineer who can own both the React-based frontend and the Java backend.
Primary Responsibilities:
Required Qualifications:
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.
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 Engineer who can own both the React-based frontend and the Java backend.
Primary Responsibilities:
- Frontend (React)
- Build and maintain modular, high-performance UI components with Reactjs (TypeScript preferred)
- Integrate UI securely with backend APIs (AWS API Gateway)
- Backend
- Focus on clean code, testing, and debugging
- Integrate with upcoming agentic frameworks, including:
- AWS Bedrock Agents (multi-step automation, tool calling)
- DevOps, Security and Collaboration
- Work on CI/CD pipelines (GitHub Actions or AWS Code Pipeline)
- Ensure secure authentication/authorization with AWS IAM and API Gateway
- 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:
- Frontend
- Solid hands-on experience in React.js/ JavaScript
- Expertise in consuming REST APIs securely (JWT, CORS, etc.)
- Backend
- 8+ years of software development experience
- Hands-on experience with Kafka
- Experience building REST APIs
- Experience building microservices or APIs
- Experience working in Agile teams
- Working knowledge of NoSQL databases (Dynamo Db preferred)
- Good understanding of DynamoDB (schema design, GSI/LSI, partition keys)
- Familiarity with S3, presigned URLs, data ingestion flows
- Solid Core Java and Spring Boot skills
- Exposure to AI/ML tools or APIs (e.g., using AI services for automation, analysis, or developer productivity)
- Proven skills in designing REST APIs (API Gateway)
- General Engineering
- Experience in unit testing and integration testing mindset
- Test Automation Experience
- Solid understanding of Git, branching strategies, code reviews
- Demonstrated ability to write clean, maintainable, well-documented code
- DevOps
- CI/CD pipelines (GitHub Actions, CodePipeline) experience
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
- Solid hands-on experience in React.js/JavaScript
- TypeScript experience (preferred)
- Expertise in consuming REST APIs securely (JWT, CORS)
- 8+ years of software development experience
- Hands-on experience with Kafka
- Experience building REST APIs
- Experience building microservices or APIs
- Experience working in Agile teams
- Working knowledge of NoSQL databases (DynamoDB preferred)
- Good understanding of DynamoDB (schema design, GSI/LSI, partition keys)
- Familiarity with S3, presigned URLs, and data ingestion flows
- Solid Core Java and Spring Boot skills
- Exposure to AI/ML tools or APIs
- Proven skills in designing REST APIs (API Gateway)
- Experience in unit testing and integration testing mindset
- Test automation experience
- Solid understanding of Git, branching strategies, and code reviews
- Demonstrated ability to write clean, maintainable, well-documented code
- CI/CD pipelines experience (GitHub Actions, AWS CodePipeline)
- Ensure secure authentication/authorization with AWS IAM and API Gateway
- Experience or exposure to AWS Bedrock Agents or agentic frameworks
Optum Compensation & Benefits Highlights
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Leave & Time Off Breadth — PTO accrues each pay period with eight paid U.S. holidays plus a floating holiday, and generous time away is consistently emphasized. This breadth supports planned and unplanned time off beyond standard vacation days.
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Parental & Family Support — Six weeks of paid parental leave, up to two weeks of paid caregiver leave, Bright Horizons back‑up care, and adoption assistance signal strong family-oriented support. EAP access with counseling sessions further extends help to employees and their households.
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Wellbeing & Lifestyle Benefits — Company‑paid short‑ and long‑term disability, Calm app membership, tuition reimbursement, commuter and FSA accounts, and broad employee discounts expand everyday wellbeing resources. Free or low‑cost virtual visits complement these lifestyle supports.
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The Company
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.
Typical time on-site:
Not Specified
