Headline

Senior Engineer @ Tiger Analytics | Python, FastAPI, Django, AWS, IaC, LangChain, LangGraph, RAG, Event-Driven & Distributed Systems

About

I am a backend software engineer with nearly 5 years of experience building production systems in Python. My work centers on FastAPI and Django REST Framework, microservices, event-driven architecture, REST APIs, AWS, and data-intensive services, alongside practical GenAI and LLM integrations. At Tiger Analytics, I design and maintain FastAPI microservices for high-throughput claim processing and build backend workflows with AWS Lambda, Amazon SQS, ECS Fargate, EventBridge, SES, CloudWatch, and EC2. One event-driven email workflow processes incremental claim updates every 15 minutes and delivers approximately 100k emails per day. I have also improved reliability through PostgreSQL and DynamoDB data modeling, CI/CD and infrastructure-as-code work, and test-driven development with more than 90% unit and integration test coverage. Previously at VVDN Technologies, I built Django REST Framework APIs and improved throughput by 15-17% through SQL query optimization and backend refactoring. I also worked on cloud and IoT systems using PostgreSQL, MongoDB, Redis, MySQL, RabbitMQ, MQTT, WebSocket, and WebRTC. My recent work includes production GenAI and LLM features using OpenAI APIs, retrieval-augmented generation, vector embeddings, LangChain, LangGraph, pgvector, RAGAS, and LiteLLM. ShipGuard is an AI release-risk reviewer for local git diffs and GitHub pull requests; SMARN is a FastAPI and PostgreSQL/pgvector memory system that retrieves context and answers questions through natural recall. I focus on clear system boundaries, dependable APIs, observable asynchronous workflows, pragmatic database design, and tests that make backend changes safer to ship.

Location

Bengaluru

AI stack

claude code

codex

langchain

langgraph

ollama

openai

Work experience

Senior Engineer - Application Engineering at Tiger Analytics, Oct 2024 - Present · 1 yr 11 mos, Bengaluru, Karnataka, India, - Engineered event-driven backend workflows and FastAPI microservices using AWS Lambda, SQS, and ECS Fargate for high-throughput, scalable claim processing. - Designed an automated email delivery system via AWS EventBridge and SES, reliably processing incremental updates and delivering approx. 100k emails per day. - Integrated LLM-based decision-support components via structured prompts and retrieval-augmented context (RAG) to automate complex claim validations. - Optimized PostgreSQL schemas and DynamoDB data models to efficiently manage rule metadata, claim evidence, and audit logs. - Championed Test-Driven Development (TDD) achieving 90%+ code coverage, and contributed to CI/CD pipelines and infrastructure-as-code (IaC).

Software Engineer at VVDN Technologies, Jun 2021 - Oct 2024 · 3 yrs 5 mos, On-site, - Designed and maintained robust REST APIs using Django Rest Framework (DRF), improving throughput by 15-17% by optimizing SQL queries and refactoring code. - Developed backend features for Netgear's cloud-native Insight platform using Python, PostgreSQL, and MongoDB to orchestrate thousands of edge devices. - Built real-time IoT integrations for NXP Home Assistant via MQTT and implemented WebRTC signaling for low-latency video streaming dashboards. - Co-developed an internal HR chatbot using OpenAI APIs and RAG to automate policy queries from internal documentation, while mentoring junior engineers.

Software Engineer Intern at VVDN Technologies, Jan 2021 - Jul 2021 · 7 mos, Gurugram, Haryana, India

Education

Bachelor of Technology - BTech, Computer Science And Engineering, Dr. A.P.J. Abdul Kalam Technical University

Public links

github: https://github.com/kapilsharma432001