Senior Full Stack .Net Developer

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.

Our R&D team is looking for a creative, passionate Senior Full Stack Developer to join our next‑generation medical imaging platform.

We are seeking a high‑impact full‑stack engineer with a strong can‑do attitude, hands‑on experience with modern architecture, and a passion for building scalable, high‑quality products using cutting‑edge technologies.

You'll join a team of dynamic professionals working in one of the most exciting and fast‑growing domains, alongside some of the brightest analytical minds in the industry.

Come join us to redefine the future of medical imaging.

Primary Responsibilities:

• Be an active member of a Scrum/Agile team developing enterprise‑grade medical imaging products
• Work closely with Product Owners, UX, and Architecture to translate business requirements into clear technical designs and execution plans
• Lead features end‑to‑end - from requirements and design, through implementation, testing, deployment, and production monitoring
• Contribute to system architecture, scalability, performance, and security decisions
• Design and develop robust, maintainable, and testable backend and frontend components
• Proactively identify and solve complex technical challenges
• Troubleshoot, diagnose, and resolve production issues in distributed systems
• Continuously improve code quality, development processes, and engineering best practices
• 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:

• BSc in Computer Science or equivalent experience
• 5+ years of hands‑on software development experience as a Full Stack Developer
• Solid experience with backend technologies:  
• Experience designing APIs for scalability, performance, and security
• Solid experience with frontend technologies:  
• Experienced in using TypeScript
• Experience with Node.js
• Experience working with cloud‑native or cloud‑ready architectures
• Solid experience with unit, integration, and end‑to‑end testing
• Experience working in Agile / Scrum environments
• Familiarity with CI/CD pipelines, source control (Git), and automated build/deploy processes
• .NET / .NET Core, C#, RESTful APIs, Web Services, Windows services  
• Modern JavaScript (ES6+), HTML5, CSS3
• React, Angular (2+), or equivalent modern framework
• Solid understanding of software engineering best practices, clean code, and design principles
• Proven exposure to AI‑assisted development tools and modern productivity practices
• Proven analytical mindset, high ownership, and a strong can‑do attitude
• Proven excellent English communication skills (verbal and written)
• Proven team player, self‑learner (autodidact), and solid collaborator

Preferred Qualifications:

• Experience with containers and orchestration (Docker, Kubernetes)
• Experience with cloud platforms (Azure / AWS / GCP)  
• Experience developing applications in medical, healthcare, or other regulated environments
• Working knowledge of healthcare interoperability and imaging standards such as HL7 (v2/v3, FHIR) and DICOM,
• Knowledge of observability tools (logging, monitoring, tracing)
• Understanding of compliance considerations (data privacy, security, auditability, and regulatory requirements)"
• Familiarity with microservices architecture, distributed systems, and event‑driven design

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 drug-free workplace. © 2026 Optum Global Solutions (Philippines) Inc. All rights reserved.