Data Engineer

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.

As a Fortune 5 business, we're one of the world's leading healthcare companies. There are no limits here on the resources you'll have or the challenges you'll encounter.

We have been supporting global healthcare systems from Ireland for more than 20 years, building a dynamic and diverse team of more than 2,100 talented individuals. With a continued record of growth and stability, we're on the constant lookout for fresh talent to join our expanding team's healthcare system work better for everyone.

As a Data Engineer, this individual will help on streamlining the flow of information and deliver insights to manage Stars Analytics that are focused on making decisions easier for members and help save members on healthcare costs. This individual's work will contribute to lowering the overall cost of healthcare for consumers and helping people live healthier lives. This individual will put their Data Engineering skills to work as they empower business partners and help to improve the healthcare system. This individual will research cutting edge big data platforms, tools, and design innovative solutions to solve business problems that only a Data Engineering can.

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 or Letterkenny office and telecommuting from a home-based office in a hybrid work model.

What you will do:

• Data Pipeline Development: Develop and maintain data pipelines that extract, transform, and load (ETL) data from various sources into a centralized data storage system, such as a data warehouse or data lake. Ensure the smooth flow of data from source systems to destination systems while adhering to data quality and integrity standards
• Data Integration: Integrate data from multiple sources and systems, including databases, APIs, log files, streaming platforms, and external data providers. Handle data ingestion, transformation, and consolidation to create a unified and reliable data foundation for analysis and reporting
• Data Transformation and Processing: Develop data transformation routines to clean, normalize, and aggregate data. Apply data processing techniques to handle complex data structures, handle missing or inconsistent data, and prepare the data for analysis, reporting, or machine learning tasks
• Contribute to common frameworks and best practices in code development, deployment, and automation/orchestration of data pipelines
• Implement data governance in line with company standards
• Monitoring and Support: Monitor data pipelines and data systems to detect and resolve issues promptly. Develop monitoring tools, alerts, and automated error handling mechanisms to ensure data integrity and system reliability

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.

What you will bring:

• Proven hands-on experience developing data pipelines, with a demonstrated solid understanding of software engineering principles
• Proven ability to troubleshoot and resolve complex data issues across large-scale datasets containing billions of records
• Demonstrated advanced proficiency in SQL, including experience utilizing window functions and other advanced SQL capabilities
• Demonstrated understanding of DevOps tools, Git workflows, and CI/CD pipeline development and deployment practices
• Proven ability to collaborate with business and technical stakeholders during requirements gathering sessions, technical design workshops, and SQL development and debugging activities
• Demonstrated proficiency in Python, with the ability to develop solutions across a range of general-purpose use cases, including data pipelines, APIs, automation, and analytical applications

Preferred Qualifications of Data Engineer:

• Experience with Snowflake or Databricks
• Experience with relational data models and OLAP processing
• Experience building data pipelines on either AWS, Azure or GCP, following best practices in Cloud deployments
• Familiar with Airflow or similar orchestration tool
• Experience working in projects with agile/scrum methodologies
• Experience with shell scripting languages
• Experience working with both real-time and batch data, knowing the strengths and weaknesses of both and when to apply one over another

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.