Associate AI/ML 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 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:

Engage in the full software development lifecycle, with a solid focus on coding, testing, and debugging

Write clean, efficient, and maintainable code following best practices

Collaborate closely with team members to design, develop, and deploy new features

Optimize and enhance the performance of existing software applications

Communicate effectively and regularly with management and technical support teams

Participate in Scrum meeting, design reviews, test case reviews, and production support readiness reviews for new releases

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 regard 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

Builder Responsibilities:

Design, develop, and deploy AI-powered solutions using no-code, low-code, and advanced platforms, translating business needs into scalable applications that enhance products, workflows, and decision-making

Required Qualifications:

B.Tech./MCA (Minimum 16 years of formal education)

3+ years of proven experience as a AI Builder or in a similar technical role

Hands-on experience as a AI/ML/Full Stack Engineer (FSE) with a solid understanding of micro-services

AI/ML Engineering Tech Stack

Python (backend AI systems, async, microservices)

LLM APIs (OpenAI, Azure OpenAI, Anthropic, Gemini)

Prompt Engineering (CoT, ReAct, system prompts)

Agent Development (plan-reason-act-reflect loops)

Agent Frameworks (LangChain, LangGraph, CrewAI, AutoGen)

Multi-agent Orchestration (task routing, planner-executor patterns)

Agent-to-Agent Communication (A2A)

Model Context Protocol (MCP) / tool integration standards

Function Calling / API Orchestration

RAG Pipelines (retrieval + ranking)

Vector Databases (Pinecone, FAISS, Pgvector, Weaviate, Qdrant)

Agent memory (short-term, long-term, contextual)

Workflow orchestration (Temporal, Prefect, Airflow)

Cloud (AWS Bedrock, Azure AI, Vertex AI)

Observability

Telemetry, logging, tracing (OpenTelemetry, LangSmith)

Monitoring KPIs (containment, success rate, latency, escalation)

Responsible AI & Guardrails

AIRB (Bias, Fairness, Complexity, Confusion)

Guardrails implementation (safety, compliance, fallback)

Prompt injection protection

Tool access control & data governance

Architecture & Design

End-to-end agentic architecture design

Multi-agent system design

Reusable frameworks for speed-to-delivery

Risk identification & mitigation

Assumptions & design trade-offs

Integration & Ecosystem

Enterprise integrations (CRM, backend systems, APIs)

Conversational AI platforms (CE, chat systems)

IVR / voice systems (audio codecs, speech flows)

Agent transfer logic (IVR human escalation)

Unification across channels (chat, voice reuse)

Voice-to-Voice (V2V) future readiness

Open questions tracking

Full Stack Engineer (FSE) Tech Stack

Java

SpringBoot

RestAPI

MySQL

Docker

Kubernettes/NoMad

Angular

Solid grasp of core design principles for building scalable and maintainable applications

Demonstrate solid analytical thinking and problem-solving capabilities

Support QA, UAT and release phases of the project via defect analysis, change maintenance

Effective team player with excellent communication and interpersonal skills

Fast learner with a passion for exploring new programming languages and emerging technologies

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.