[Remote] Full Stack and AI Engineer

Note: The job is a remote job and is open to candidates in USA. Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The Full Stack and AI Engineer will design, build, and maintain scalable backend services and AI/ML-powered features, ensuring production readiness and enforcing engineering best practices. This role involves collaboration across various teams to deliver roadmap initiatives.ResponsibilitiesDesign, build, and maintain scalable backend services and APIs using Java and PythonArchitect and implement event-driven/microservices solutions using Kafka (topics, partitions, consumer groups, schemas, retries/DLQs)Model, optimize, and maintain relational and/or NoSQL databases (schema design, indexing, query tuning, migrations)Develop data processing pipelines (streaming and batch) with strong focus on reliability, observability, and performanceBuild and integrate AI/ML-powered features (model inference services, prompt orchestration, vector search, or ML pipelines) and collaborate with data science teamsEnsure production readiness: CI/CD, automated testing, monitoring/alerting, and incident response/root-cause analysisEnforce engineering best practices: code reviews, secure coding, documentation, and mentoring junior engineersCollaborate cross-functionally with product, QA, platform/SRE, and stakeholders to deliver roadmap initiativesSkillsHigh School Diploma/GED8+ years of professional software engineering experience building backend systems in Java and/or Python5+ years of experience leading a team of 5-10 engineers3+ years of experience with databases (PostgreSQL/MySQL/Oracle and/or MongoDB/Cassandra), including performance tuning and transactional consistency3+ years of experience in cloud platforms (AWS/Azure/GCP), containerization (Docker/Kubernetes), and CI/CD2+ years of experience with Kafka in production (exactly-once/at-least-once semantics, schema evolution, monitoring, capacity planning)2+ years of experience designing distributed systems (microservices, REST/gRPC, concurrency, caching, resiliency patterns)1+ years of experience delivering AI-enabled solutions (LLM integration, ML inference deployment, feature engineering, vector databases such as Pinecone/Weaviate/pgvector, or MLOps tools)Bachelor's or Master's degree in Computer Science (or equivalent practical experience)BenefitsA comprehensive benefits packageIncentive and recognition programsEquity stock purchase401k contribution (all benefits are subject to eligibility requirements)Company OverviewOptum provides primary care and optical care services. It was founded in 1985, and is headquartered in Albuquerque, New Mexico, USA, with a workforce of 10001+ employees. Its website is https://nm.optum.com.