**Requisition number:**
**Job category:** Technology
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 diversity and inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start **Caring. Connecting. Growing together.**
Careers with Optum offer flexible work arrangements and individuals who live and work in the Republic of Ireland will have the opportunity to split their monthly work hours between our Dublin office and telecommuting from a home-based office in a hybrid work model.
**Primary Responsibilities:**
- Lead the architecture and engineering of enterprise scale, mission critical platforms supporting critical business operations
- Architect distributed systems with solid emphasis on scalability, resilience, performance, security, and operational excellence
- Design and evolve microservices based architectures using Java, Spring Boot, and Spring Cloud, alongside modern front end frameworks such as React and Angular
- Own backend architecture and system design, producing high level and detailed architectural blueprints that guide consistent implementation
- Provide technical and architectural leadership across full stack and Generative AI initiatives, leveraging React, Node.js, Python, LangChain, and LangGraph
- Champion adoption of modern engineering productivity tools (e.g., GitHub Copilot) to improve developer efficiency, quality, and consistency
- Lead, mentor, and grow the engineering organization, fostering technical excellence, career development, and solid team engagement
- Partner closely with product, and business stakeholders to align priorities, translate business needs into technical outcomes, and ensure predictable delivery
- Establish and enforce engineering best practices, design patterns, and architectural standards across teams
- Own delivery commitments and quality, ensuring adherence to Agile practices through active participation in design reviews, code reviews, and ceremonies
- Stay current on advances in AI, ML, and software engineering, guiding thoughtful, value driven adoption within the organization
- Provide strategic direction for machine learning solutions and data pipelines when applicable
- Ensure compliance with company policies, employment terms, and organizational directives, maintaining flexibility to adapt to evolving business needs and operating models
You will 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 providing development for other roles you may be interested in.
**Required Qualifications:**
- Graduate degree or equivalent professional experience
- Proven significant experience developing and supporting enterprise Java/J2EE applications
- Proven extensive experience developing applications using React.js
- Proven experience in AI or large language model (LLM) application development, evaluation, or operationalization
- Demonstrated experience working with RAG pipelines, tool calling, prompt regression testing, or agent orchestration frameworks
- Proven experience with modern frontend development, including React 18, streaming UI patterns, Storybook, and component-driven development
- Demonstrated solid understanding of system design, architectural decision-making, and software design patterns
- Demonstrated solid understanding of full-stack architectures, including JavaScript, React, Redux, Node.js, and Python
- Proven hands-on experience with event-driven architecture, asynchronous processing, and messaging technologies such as Kafka, RabbitMQ, or similar platforms
- Demonstrated exposure to Generative AI technologies, including GitHub Copilot, LangChain, LangGraph, and agent-based solutions
- Proven solid experience designing and implementing cloud-native solutions
- Demonstrated expertise in relational and NoSQL database technologies
- Demonstrated solid proficiency with CI/CD pipelines and tools, including Jenkins, Git, Maven, Gradle, and SonarQube
- Proven experience leading and mentoring engineering teams within offshore or distributed delivery models
- Demonstrated solid communication and stakeholder management skills, with the ability to balance technical depth and leadership accountability
Please note you must currently be eligible to work and remain indefinitely without any restrictions in the country to which you are making an application. Proof will be required to support your application.
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.
Diversity creates a healthier atmosphere: Optum is an Equal Employment Opportunity employer and all qualified applicants will receive consideration for employment without regard to gender, civil status, family status, sexual orientation, disability, religion, age, race, and membership of the Traveller community, or any other characteristic protected by law. Optum is a drug-free workplace. © 2026 Optum Services (Ireland) Limited. All rights reserved.
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