Senior Software Engineer I

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, develop, enhance, and maintain RxClaim core adjudication components on IBM i (AS/400, iSeries) using Synon (CA 2E) and DB2/400
• Analyze business requirements related to pharmacy claims adjudication (pricing, accumulators, edits, DUR, rejects, reversals, adjustments) and translate them into robust technical solutions.
• Leverage GenAI-assisted development to improve velocity and quality (code suggestions, unit test generation, documentation, impact analysis); apply guardrails and enforce code-review standards
• Implement AIOps for observability (log/metric tracing, anomaly detection, auto-remediation runbooks) across batch jobs and adjudication workflows
• Develop and optimize complex SQL (queries, stored procedures, views, triggers) for DB2 for i; ensure data integrity and performance
• Collaborate with product owners, BA/QA, and RxClaim configuration teams; support SIT/UAT and coordinate deployments
• Conduct code reviews, peer mentoring, and contribute to standards, reusable patterns, and documentation
• Optimize performance at the application and database layers; leverage Visual Explain, indexing strategies, and query tuning on DB2 for i
• Ensure compliance with security, audit, and HIPAA/PHI handling requirements
• 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

• 7+ years of IT experience on AS400 technologies
• Experience in RxClaim core adjudication area
• Demonstrated experience applying AI/automation in production (e.g., anomaly detection, ticket triage, fraud scoring, GenAI knowledge assistant) with measurable outcomes
• Hands on experience in DB2/400
• Solid knowledge on SQL
• Solid knowledge and hands on experience on SYNON
• Working knowledge of GenAI/LLM concepts: prompting, retrieval-augmented generation (RAG), embeddings, guardrails, hallucination mitigation, and evaluation methods
• Familiarity with MLOps practices: experiment tracking, model/prompt versioning, CI/CD for models, monitoring, and rollback
• Proven ensuring timely deliveries for all assigned tasks
• Proven participation in Design reviews, Test Case reviews, and Production Support readiness reviews for new releases
• Proven support QA, UAT and Release phases of the project via defect analysis, change maintenance, etc.
• Proven to adhere to all quality requirements
• Proven ability to work independently
• Proven good communication and presentation skills
• Proven good attitude and self-motivated
• Adaptable to work in Evening SHIFT (11:30 am - 8.30 pm or 2:30 pm - 12:00 am )