Senior Software Engineer I

Requisition Number: 2350619
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.
Primary Responsibilities:

• Design, build, and maintain standard data acquisition connectors for FHIR and CommonWell to enable scalable ingestion for CrimsonAI
• Define connector integration patterns (authentication, paging, incremental loads, error handling, retries) to ensure reliable and secure data ingestion
• Perform source-to-target (S2T) schema mapping from upstream source formats to CrimsonAI canonical models; document mapping rules, assumptions, and transformations
• Develop and maintain mapping logic and transformation pipelines (e.g., validation, normalization, enrichment, deduplication) to ensure data quality and usability
• Build an interactive data schema visualizer to allow stakeholders to review acquisition specifications, understand relationships, and validate mapping completeness
• Partner with product, engineering, and clinical/operational SMEs to gather requirements and confirm interpretation of FHIR resources and CommonWell payloads
• Establish automated validation checks (schema conformance, required field completeness, referential integrity) and produce actionable error reports for remediation
• Create and maintain technical documentation (connector specs, S2T mapping documents, API contracts, data dictionaries) and support knowledge transfer
• Support end-to-end testing (unit, integration, performance) for connectors and mappings; triage defects and drive root-cause resolution
• Monitor connector performance and ingestion health; implement observability (logging, metrics, alerting) and continuous improvements
• Ensure compliance with security and privacy requirements for data in transit and at rest, including appropriate access controls and audit logging
• Contribute to release planning and delivery execution to meet CrimsonAI implementation timelines
• 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:

• Bachelor's degree in Computer Science, Information Systems, Engineering, or related field (or equivalent practical experience)
• 5+ years of experience in data engineering, integration engineering, interoperability, or building data ingestion pipelines/platform capabilities
• Hands-on experience building and supporting API-based data integrations, including authentication (OAuth2/SMART on FHIR preferred), rate limiting, pagination, and retries
• Experience with healthcare interoperability frameworks and networks (CommonWell experience; TEFCA/QHIN exposure)
• Proven experience performing source-to-target (S2T) mapping and translating source schemas to canonical/target data models
• Experience with data quality validation techniques (schema conformance, completeness, referential integrity) and building automated checks
• Solid working knowledge of HL7 FHIR fundamentals (resources, bundles, profiles, terminology bindings) and experience integrating FHIR-based data feeds
• Proficiency in at least one programming language used for integrations (e.g., Python, Java) and comfort working with JSON and REST APIs
• Proven solid SQL skills and experience with data transformation/ETL/ELT patterns (batch and/or streaming)
• Proven solid documentation and communication skills, with the ability to explain complex mappings and integration behavior to technical and non-technical stakeholders

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.