Rohit B.
Senior Software Engineer & AI Architect

I build systems that think, scale & deliver.

8+ years turning complex engineering into measurable business value — from cloud-native microservices to production AI agents powered by LangChain, LangGraph & RAG. Currently at Optum, Houston TX.

FastAPI · Java AWS · GCP · Azure LangChain · LangGraph RAG Systems React · Vue.js Kubernetes · Terraform
Rohit B
📷
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Rohit B
Sr. Software Engineer · AI Architect
8+
Years Experience
4
Major Companies
9
Certifications
3
Cloud Platforms
Open to senior-level opportunities
📍 Houston, TX  ·  (832) 271-3113
☁️  AWS Certified Data Engineer
Applied AI & LLMs
Cloud-Native Architecture
RAG Systems
Full-Stack Development
Data Engineering
DevOps & CI/CD
Microservices
HIPAA Compliance
Multi-Cloud
Agentic Workflows
Applied AI & LLMs
Cloud-Native Architecture
RAG Systems
Full-Stack Development
Data Engineering
DevOps & CI/CD
Microservices
HIPAA Compliance
Multi-Cloud
Agentic Workflows
About Me

Bridging engineering complexity & business value

I'm a versatile Senior Software Engineer and AI Architect who steers the full lifecycle of high-performance, cloud-native ecosystems. I bridge the gap between complex engineering and measurable business outcomes.

My superpower? Transitioning legacy monoliths into event-driven microservices, then layering in AI — from production-grade RAG systems to autonomous LangGraph agents — so teams ship smarter, not just faster.

⚡
Full-Stack to Full-CloudFastAPI + React frontends all the way through Terraform infrastructure — I own the entire stack.
🤖
AI That Actually ShipsNot just prototypes — production RAG systems, AI agents, and document intelligence in real enterprise environments.
📐
Disciplined ArchitectCost-efficiency, observability, and data governance aren't afterthoughts — they're designed in from day one.
Tech Stack
Applied AI & ML
LangChainLangGraphLlamaIndexRAGAWS BedrockPineconepgvectorSageMakerScikit-learn
Languages & Frameworks
PythonFastAPIJava (Spring Boot)JavaScript ES6+SQLGo
Frontend
ReactVue.jsRedux ToolkitD3.jsWebSocketsTailwind CSS
Cloud & DevOps
AWSGCPAzureTerraformKubernetes EKS/GKEDockerGitHub Actions
Data Engineering
AWS GluePySparkAmazon AthenaBigQueryPostgreSQLRedisMongoDB
By the Numbers

Impact that speaks for itself

From healthcare platforms serving millions of patients to IoT security systems with sub-100ms latency — every number here reflects a real result in a real production environment.

30%
Reduction in clinician data entry at Optum
40%
Faster incident response at Brivo
60%
Faster mean-time-to-detect incidents
20%
Monthly cloud cost savings via FinOps
80%
Fewer data migration errors at Devon Energy
99.9%
Uptime across multi-cloud deployments
Career

Professional Experience

Optum · UnitedHealth Group
Senior Software Engineer
Aug 2024 – Present
Houston, TX
Architected a cloud-native, HIPAA-compliant clinical platform — replacing legacy monoliths with event-driven microservices, powering semantic patient history search via LangGraph + RAG, and cutting manual data entry by 30%.
30% reduction in clinician data entry via React + Redux dashboard
LlamaIndex + pgvector RAG for semantic patient history queries
Autonomous LangGraph agents for insurance claim validation
20% cloud cost savings through FinOps + EKS optimization
AWS Textract + LLM pipeline for intelligent document processing
60% faster incident detection via CloudWatch + Prometheus stack
FastAPIJava Spring BootReactLangChainLangGraphLlamaIndexAWS BedrockAWS GlueEKSTerraformPostgreSQLPySpark
Brivo
Software Engineer II
Sep 2023 – Jul 2024
Washington D.C.
Transformed a traditional access-control platform into an intelligent real-time security command center — handling sub-100ms IoT telemetry from thousands of devices and deploying stateful LangGraph agents for autonomous threat-response.
Sub-100ms IoT telemetry from thousands of access points
40% faster incident response with live WebSockets security UI
LlamaIndex + Pinecone RAG for real-time forensic analysis
40% LLM cost reduction via Bedrock prompt-caching
Autonomous threat-response agents with LangGraph
85% test coverage with React Query + Jest
FastAPIJavaReactWebSocketsD3.jsLlamaIndexPineconeLangGraphAWS BedrockAWS GlueTerraform
Devon Energy
Software Engineer
Jan 2020 – Aug 2023
Oklahoma City, OK
Built a secure self-service configuration platform eliminating plaintext secrets enterprise-wide. Engineered multi-cloud pipelines across AWS + GCP and pioneered one of the company's earliest RAG systems for field operations.
60% fewer rollback incidents with "dry run" UI validation
80% fewer migration errors via automated Glue + PySpark ETL
Early enterprise RAG with LangChain + Aurora pgvector (2023)
Real-time streams: AWS Kinesis + GCP Pub/Sub (<1s latency)
Zero-trust secrets with Vault + AWS Secrets Manager
55% faster MTTR with Prometheus + Grafana + PagerDuty
PythonFastAPIVue.jsLangChainLlamaIndexSageMakerGCP Pub/SubBigQueryEKS/GKETerraformHashiCorp Vault
Phoenix Global
Python Programmer
Jan 2018 – Dec 2019
Hyderabad, India
Modernized a fragmented legacy financial reporting landscape into a high-performance multi-cloud platform with predictive ML models achieving 85% forecast accuracy and automated ETL pipelines handling millions of financial records daily.
85% quarterly budget forecast accuracy with Scikit-learn models
50% improved modularity decomposing legacy financial monoliths
60% faster DB reads with Redis caching during reporting spikes
99.9% data integrity via AWS Lambda validation frameworks
PythonJavaReactD3.jsScikit-learnAWS GlueGCP BigQueryTerraformJenkins
Credentials

Certifications

☁️
AWS Certified Data Engineer — Associate
Amazon Web Services
Verified
✓ Active
🔮
OCI 2025 Generative AI Professional
Oracle Cloud
2025
✓ Active
🏗️
OCI 2025 MultiCloud Architect Professional
Oracle Cloud
2025
✓ Active
👨‍💻
OCI 2025 Developer Professional
Oracle Cloud
2025
✓ Active
🌐
Full Stack Web Dev with Angular
Coursera
Verified
🤖
Conversational AI with Dialogflow
Google / Coursera
Verified
📋
Agile Workflows with Product Roadmaps
Coursera / Miro
Verified
🎯
GCP Cloud Architect — Professional
Google Cloud Platform
In Progress
⏳ In Progress
Let's Connect

Ready to build something great together?

Whether you're scaling a healthcare platform, adding AI intelligence to an existing system, or architecting a cloud-native transformation — I'd love to hear about the challenge.

✉️
Email
[email protected]
📞
Phone
(832) 271-3113
🔗
LinkedIn
linkedin.com/in/rohit-b-964170372
What I bring to your team
01
End-to-end ownership — From FastAPI routes to Terraform modules. No hand-off gaps, no finger-pointing.
02
Production-grade AI — RAG systems, autonomous agents, and IDP solutions that actually ship to real users.
03
Multi-cloud fluency — AWS, GCP, and Azure, with FinOps built in from the start — not bolted on after the bill.
04
Regulated environments — HIPAA, zero-trust, and compliance-first thinking from years in healthcare and finance.
05
Mentorship & collaboration — Helping cross-functional teams adopt emerging technologies with precision and confidence.