[Hiring] Senior Full Stack Developer - Cybersecurity @UnitedHealth Group

Role Description

The Sr. Full Stack Software Engineer (Job Code-TEC032 / GL-28) (Vue.js / Java Spring Boot / Python) is responsible for designing, building, and maintaining secure, scalable web applications and AI-enabled platform capabilities that support our cybersecurity products and services. This role spans frontend and backend development, focusing on building intuitive, high-performance user interfaces using Vue.js, robust APIs and backend services using Spring Boot and Python, and scalable cloud-native solutions deployed in Azure environments.

This role operates at the intersection of frontend engineering, backend services, cloud infrastructure, cybersecurity, and applied AI development. The Sr. Full Stack Software Engineer partners closely with product managers, security specialists, DevOps engineers, and other cross-functional team members to deliver reliable, observable, and secure end-to-end solutions supporting complex cybersecurity workflows, intelligent automation, and AI-assisted user experiences.

The role also includes contributing to AI-powered product features leveraging large language models (LLMs), semantic search, retrieval-augmented generation (RAG), vector indexing, and contextual retrieval technologies. The engineer will help design and implement services and pipelines supporting document ingestion, embeddings, intelligent search, and AI-driven workflows integrated into customer-facing applications.

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

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field
• 5+ years of professional software engineering experience, with meaningful hands-on work across frontend and backend development
• 3+ years of proven experience building production-grade user interfaces with Vue.js and modern JavaScript/TypeScript, HTML, and CSS
• 3+ years of hands-on experience with Java and Spring Boot for building RESTful APIs and backend services
• 3+ years of experience with Python for backend development, automation, AI-enabled services, data processing, or workflow orchestration
• 3+ years of experience with ORM frameworks (e.g., JPA/Hibernate) and relational database design, including schemas, relationships, indexing, and query optimization
• 3+ years of experience designing and integrating RESTful and JSON-based APIs across distributed systems
• 3+ years of experience deploying and operating applications in Azure or another major cloud provider
• 3+ years of experience with CI/CD pipelines (e.g., GitHub Actions, Azure DevOps), including automated build, testing, security scanning, and deployment workflows
• 3+ years of experience with secure web and API development practices and common vulnerabilities (e.g., OWASP Top 10)
• 3+ years of experience with automated testing practices across frontend and backend systems
• 3+ years of experience working in agile environments (Scrum or Kanban) with cross-functional product teams
• 3+ years of experience with debugging, analytical, and problem-solving skills, with the ability to own features and services end-to-end
• 1+ years of experience building or integrating AI-powered application features using technologies such as large language models (LLMs), semantic search, embeddings, vector databases, or retrieval-augmented generation (RAG) architectures
• 1+ years of experience with Python AI/ML frameworks and tooling such as FastAPI, LangChain, Llama Index, or any other similar technologies

Requirements

• Design, implement, and maintain end-to-end features across the frontend (Vue.js) and backend services (Spring Boot and Python)
• Build secure, responsive, and user-friendly interfaces that visualize complex cybersecurity data and workflows
• Develop and maintain RESTful APIs, business logic, and data access layers using Spring Boot, Python services, and ORM frameworks
• Design and implement AI-powered product features leveraging large language models (LLMs), semantic search, retrieval-augmented generation (RAG), and intelligent workflow automation
• Build and maintain data ingestion, indexing, embedding, and retrieval pipelines to support AI-driven search and contextual experiences
• Develop Python-based services and workflows for AI orchestration, document processing, data transformation, and automation
• Integrate third-party and cloud-based AI services (e.g., Azure OpenAI, vector databases, embedding services) into customer-facing applications
• Model and manage relational database schemas and entity relationships to support product requirements
• Leverage Azure cloud services to deploy and operate full stack applications with a focus on reliability, performance, security, and scalability
• Apply secure coding practices across the stack, addressing common web and API vulnerabilities (e.g., OWASP Top 10)
• Contribute to and follow CI/CD pipelines (e.g., GitHub Actions, Azure DevOps) for building, testing, and deployment of frontend and backend components
• Participate in code reviews and design discussions, ensuring quality, maintainability, and alignment with architectural standards
• Troubleshoot and resolve issues across the stack, focusing on root cause analysis and long-term improvements
• Collaborate with cross-functional teams to translate requirements into technical designs and implementations

Benefits

• Comprehensive benefits package
• Incentive and recognition programs
• Equity stock purchase
• 401k contribution (all benefits are subject to eligibility requirements)

Company Description

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.