Hemanth Koppaka — Senior Software Engineer

About

Building AI systems that work in production, not just demos.

I'm a Senior Software Engineer specializing in AI engineering, full-stack development, data infrastructure, and cloud-native systems. Over 7 years I've delivered enterprise solutions across healthcare, finance, and credit risk — driving real operational impact.

Currently at Cigna – Evernorth, I architect HIPAA-compliant GenAI workflows using LangGraph, GPT-4, and Azure OpenAI — while also building full-stack applications with React.js and FastAPI that give clinicians transparent, auditable AI-driven insights.

From backend APIs and responsive frontends to distributed data pipelines and multi-agent AI systems — I work across the full stack, most energized at the intersection of AI engineering and modern web development.

Location Houston, TX, USA

Education MS Computer Science — UMass

Specialization AI · Full Stack · Data · Cloud

Email hemanthdpk@gmail.com

Status Open to opportunities

Work Experience

Cigna — Evernorth

Senior Software Engineer — AI

LangGraph Azure OpenAI RAG FastAPI React.js Databricks AKS HIPAA

Built LangGraph multi-agent workflows on Azure OpenAI & AI Foundry to automate eligibility, claims validation, and clinical insight generation
Developed React.js dashboards giving clinicians transparent, auditable views of AI responses and retrieved context
Designed hybrid RAG pipelines (LangChain + FAISS + Pinecone) unifying retrieval across FHIR/HL7, EOBs, PDFs, and SQL — improving contextual accuracy by 29%
Automated document summarization with Azure Form Recognizer + GPT-4, saving 1,200+ analyst hours annually
Implemented MCP servers and AI Foundry tool registries for secure, schema-validated agent tools
Containerized microservices on AKS with Helm, HPA, and blue-green rollouts for zero-downtime updates
Built Databricks ETL pipelines with Delta Lake and Unity Catalog for HIPAA-grade lineage and governance

41% improvement in eligibility throughput · 33% reduction in claim backlog · 45% less manual chart-review time

Jul 2024 — Present

Hearst

Senior Software Engineer

FastAPI React.js Vue.js Databricks Kinesis EKS OpenTelemetry

Built FastAPI microservices exposing credit-risk model inference as low-latency REST endpoints for real-time scoring
Developed responsive financial dashboards and healthcare data portals using React.js and Vue.js with real-time interactivity
Migrated legacy ML pipelines into Databricks, integrating Oracle ADW as a core source with measurable runtime improvements
Implemented Kinesis Data Streams + Analytics for near real-time rating updates to PostgreSQL dashboards
Deployed on Amazon EKS via GitHub Actions with OpenTelemetry traces, metrics, and SLO alerting
Introduced Redis caching for lookup-heavy datasets, stabilizing API latency under bursty traffic

Oct 2023 — Jul 2024

TransUnion

Software Engineer

Django REST Angular NgRx Kafka RabbitMQ ECS Fargate PySpark

Built Python backend APIs (Django REST / Flask) for borrower onboarding, KYC, eligibility, and partner integrations
Developed Angular SPAs with NgRx state management and WebSocket real-time data updates across financial dashboards
Designed responsive HTML5/CSS3/Bootstrap interfaces with cross-browser compatibility and mobile-first approach
Processed KYC and credit events through Kafka and RabbitMQ with DLQ, retry, and TTL configurations
Created PySpark pipelines aggregating onboarding events and bureau responses for compliance reporting
Containerized services with Docker, deployed on ECS Fargate with GitHub Actions CI/CD

Sep 2019 — Jul 2023

Arete IT Services

Software Developer

Python Django Java Spring Boot AWS EC2 PyTorch

Designed and built backend modules in Python/Django and Java/Spring Boot, deployed on AWS EC2 and EKS
Developed predictive models with PyTorch for logistics forecasting and cost minimization via SciPy
Implemented CI/CD with Jenkins and AWS CodeDeploy following TDD practices
Collaborated across finance, logistics, and retail domains on enterprise cloud solutions

May 2018 — Jul 2019

Technical Skills

AI & ML

LangChain LangGraph GPT-4 Azure OpenAI Bedrock RAG FAISS Pinecone CrewAI HuggingFace SageMaker TensorFlow PyTorch

Backend

Python 3.11 FastAPI Django REST Flask GraphQL Node.js Java Spring Boot Celery Pydantic

Full Stack & Frontend

React.js Angular Next.js Vue.js Redux NgRx Tailwind CSS TypeScript HTML5 CSS3 WebSockets

Data Engineering

PySpark Databricks Delta Lake Kafka AWS Glue Azure ADF Kinesis Event Hubs Apache NiFi Snowflake

Cloud & Infra

AWS Azure GCP Kubernetes Docker Terraform Helm AKS EKS GKE CloudFormation

Databases & Streaming

PostgreSQL MongoDB DynamoDB Redis Oracle Redshift BigQuery Elasticsearch RabbitMQ

HemanthKoppaka

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