Senior Software Engineer – Full Stack

Humana Inc. is a leading U.S. healthcare company that provides insurance and healthcare services. They are seeking a Senior Full Stack Engineer to take on a hands-on role in architecture, design, and development of applications supporting the Wisconsin Medicaid Market, focusing on end-to-end ownership across the full stack.

Responsibilities:

• Performs hands-on design and delivery across the full stack for the Wisconsin Medicaid Market (user experience/UI, APIs/services, data, integrations, and hosting)
• Work across multiple insurance core administration platforms and supporting services rather than a single domain
• Drives technical architecture and design across UI, API, data, and integration layers; present a clear vision and pragmatic patterns that standardize approaches and improve efficiency across technology stacks
• Identify and address technical debt and reliability gaps that improve scalability, supportability, and operational outcomes
• Support modernization efforts (including modernization of UI/front-end where applicable and hardening/modernizing service and integration layers), with an emphasis on automation and repeatability
• Partner with IT leadership, enterprise architects, and platform teams to align decisions with enterprise standards and long-term direction
• Ensure solutions meet security, compliance, and HIPAA requirements, including applying security-as-code and appropriate controls in delivery pipelines
• Mentor engineers through design discussions and code reviews; coach on delivery practices (testing, CI/CD, observability) and model effective use of Humana-approved AI and code generation tools
• Balance hands-on delivery while exercising your technical leadership (architecture decisions, alignment, and coaching) as priorities evolve

Requirements:

• Deep experience building and modernizing applications across the full stack, including user experience/front-end, APIs and back-end services, data, integrations, and hosting
• Strong experience with the Microsoft technology stack (e.g., .NET, SQL Server, Windows-based services) and cloud-hosted solutions (especially Azure)
• Comfortable working across application, integration, and platform layers in complex environments, with a track record of owning features end-to-end from UI through production operations
• Strong experience building and maintaining modern web user interfaces, including component-based UI development, state management, and integration with back-end APIs
• Knowledge of accessibility best practices (e.g., WCAG-aligned design), secure front-end patterns, and performance optimization
• Ability to collaborate with stakeholders to translate workflows into clear, usable experiences
• Experience designing and evolving APIs and service interfaces (REST preferred; event-driven patterns where appropriate), defining durable data contracts, and integrating with third-party/vendor and enterprise services
• Understands authentication/authorization flows, versioning, backward compatibility, and strategies for minimizing integration brittleness across systems
• Demonstrated ability to apply secure-by-design practices across UI, API, and data layers, including input validation, secrets management, dependency hygiene, threat-aware design, and secure SDLC practices
• Experience partnering with security teams and implementing controls in pipelines (SAST/DAST/dependency scanning where available) while balancing usability and delivery needs
• Experience designing delivery pipelines and operational automation (CI/CD), applying infrastructure as code and security as code practices, and improving developer experience through repeatable, self-service patterns
• Working knowledge of containerization and orchestration concepts (e.g., Docker and Kubernetes/AKS) and when to apply them to improve scalability, resilience, and consistency across environments
• Ability to improve production supportability through monitoring, logging, alerting, and runbook-style documentation; experience reducing incident volume via root-cause analysis, automation, and resilient design
• Ability to understand and navigate interactions across multiple insurance core systems, platforms, and supporting services, identifying opportunities to simplify workflows and reduce system sprawl
• Strong aptitude for evaluating existing solutions, identifying technical debt, and recommending pragmatic architectural improvements that balance near-term delivery with long-term sustainability
• Experience modernizing legacy technologies and improving reliability, performance, and operational supportability through thoughtful design, refactoring, and automation
• Comfort actively leveraging AI-assisted development and code generation tools to improve productivity, code quality, analysis, and learning
• Expected to use these tools day-to-day and model effective practices for the team
• Thrives in autonomous, high-trust environments
• Comfortable wearing multiple hats, collaborating across teams, influencing through expertise, and remaining hands-on while leading technical direction, mentoring teammates, and partnering with leaders on architectural and process decisions
• Experience with Humana's approved code generation tooling (e.g., Windsurf/Codeium); strong aptitude and willingness to learn