Ramkumar Ethiraj

Lead AI/ML Engineer — platform engineering, cloud-native delivery, and AI-augmented developer workflows.

Summary

12+ years building cloud-native platforms and microservices, with deep work in Java / Spring Boot, Microsoft Azure, Kubernetes, DevSecOps, and enterprise security architecture. Recent focus includes AI-augmented delivery, LLM evaluation workflows, and reusable agent / instruction packs for Copilot, Claude, and Codex.

Skills & tech stack

Languages & frameworks

JavaSpring BootSpring Security PythonC# / .NETSQLShell

Cloud, data & platform

AzureAKSKubernetesDocker GitHub ActionsJenkinsDatabricks Data FactoryPostgreSQLSpark

Architecture, security & AI

MicroservicesREST APIsOAuth 2.0 JWTDevSecOpsPHI / PII governance LLM evaluationAgent workflows GitHub CopilotClaudeCodex

Experience

Sep 2026 – Present
Lead AI/ML Engineer
Optum (UnitedHealth Group)
  • Lead AI/ML engineering direction across platform and delivery workflows.
  • Advance LLM evaluation, agent orchestration patterns, and secure AI-assisted development practices.
Mar 2024 – Sep 2026
Principal Software Engineer
Optum (UnitedHealth Group)
  • Led medication pricing platform modernization and end-to-end delivery compression initiatives.
  • Owned organization-wide platform engineering and DevOps across multiple projects and a large GitHub repository portfolio on Azure and on-premises.
  • Designed federated approval and orchestration solutions that scaled daily throughput dramatically.
  • Built shared authentication modules (JWT / service tokens) across Spring Boot microservices with sub-100ms response targets.
  • Embedded DevSecOps gates into GitHub Actions CI/CD for high-availability distributed services.
Mar 2022 – Mar 2024
Senior Software Engineer II
Optum (UnitedHealth Group)
  • Led security architecture for PHI / PII and classified data with field-level governance controls.
  • Enabled multi-team onboarding from heterogeneous sources into Azure storage and Databricks.
  • Defined cloud migration strategy and architecture / deployment reference standards.
Dec 2018 – Mar 2022
Senior Software Engineer I
Optum (UnitedHealth Group)
  • Owned lifecycle delivery for clinical-trials analytics and related product suites on Azure.
  • Delivered Java backend services, complex SQL, automation, and data pipeline improvements.
  • Drove Azure migration for clinical platforms and stabilized performance of evidence products.
Mar 2017 – Dec 2018
Senior Software Engineer
GlobalLogic (consulting for Ericsson)
  • Evolved OSS/BSS portfolio components with Java and big-data processing.
  • Redesigned MapReduce retention jobs for large performance gains and built Java CLI tooling for MapR operations.
Sep 2014 – Feb 2017
Application Development Analyst
Accenture
  • Built product data modeling tooling spanning web and Windows workloads with scheduled SQL jobs.
  • Migrated a legacy C# application to a lighter Java stack and authored Java / SQL services for enterprise product data flows.

Education

M.Tech — Software Systems
BITS Pilani · Completed 2026

B.E. — Computer Science and Engineering
Coimbatore Institute of Engineering and Technology · 2010 – 2014