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Punit
Gautam

Staff Engineer · Python Backend · AI Systems

7+ years shipping high-scale distributed systems and production AI at Walmart, Mirafra, and Data Works. I architect the backend layer that makes AI products — agentic pipelines built on LangChain / LangGraph — actually work in production.

Bangalore, India — open to remote
+91 8880 144 666
AI Agents
LangChain
LangGraph
AWS
Punit Gautam
Python FastAPI Django AWS GCP Docker PostgreSQL MongoDB GraphQL GitHub Actions LangChain LangGraph MCP CrewAI HuggingFace PySpark Jenkins Python FastAPI Django AWS GCP Docker PostgreSQL MongoDB GraphQL GitHub Actions LangChain LangGraph MCP CrewAI HuggingFace PySpark Jenkins
99.99%
System Uptime
20K+
Requests / min
40%
AI Accuracy Gain
4
Companies
// Open to founder partnerships · worldwide

Got a bold AI idea?
Let's build it together.

I'm looking for founders building the next wave of AI-native products. You bring the vision and market insight — I bring the deep technical execution to ship a scalable production system from zero.

01
AI Product Development
LLM pipelines, RAG systems, AI agents, scoring engines — production-ready on FastAPI & AWS/GCP.
02
Scalable Backend Architecture
APIs and microservices built for 20K+ req/min. Distributed systems that grow with your product.
03
0-to-1 Execution
Move fast from idea to working MVP. I've shipped production systems solo and led high-output eng teams.
04
Remote & Global
Async-first, built for distributed teams. Open to equity, contract, advisory, or co-founder terms.
Domains I'm excited to build in
HealthTech & MedAI FinTech & InsurTech EdTech & Learning AI E-commerce Automation HR & Talent AI Data & Analytics Platforms Any AI-first SaaS
Core Expertise

Technical Skills

Languages
Languages & Query
Python SQL
Backend
Frameworks & APIs
FastAPI Flask Django GraphQL REST JWT/OAuth2
Cloud & DevOps
Cloud Platforms
EC2 S3 Lambda RDS Redshift AWS Glue ECS GCP Docker
AI / ML
AI & Data Engineering
LangChain LangGraph RAG Pipelines Vector DBs (Pinecone/FAISS) MCP Hugging Face CrewAI Claude / Anthropic API Gemini T5 LLMs PySpark NLP WhatsApp API
Databases
Database Systems
PostgreSQL MongoDB Parquet/S3
CI/CD
Dev & Deployment
GitHub Actions Jenkins Docker Git Microservices
What I Build

AI Systems: Agents, RAG & Fine-Tuning

Beyond infrastructure — I architect and ship AI-native products that people actually use, from stateful agentic workflows with LangGraph to fine-tuned domain models and RAG pipelines.

Applied ML · Shipped at Data Works
Fine-Tuned LLMs for Domain-Specific Scoring
Fine-tuned a T5-based model on labeled resume/job-description pairs to power a semantic candidate-scoring engine — outperforming generic embedding similarity on hiring-specific signal and lifting match accuracy by 40%.
T5 Hugging Face PyTorch Weighted NLP FastAPI Serving
Agent Orchestration
Stateful Multi-Step Reasoning
LangGraph state machines for multi-agent workflows with tool-calling, retries, and human-in-the-loop checkpoints — wired to external tools and data sources via MCP.
LangGraph LangChain MCP
RAG Infrastructure
Semantic Knowledge Systems
RAG pipelines on top of company knowledge bases and support docs — turning static information into a queryable, reasoning layer a product can act on.
Vector DBs Pinecone / FAISS RAG
Agent Platform
Domain-Specific AI Agents
Vertical agents built for specific workflows — sales follow-up, hiring screeners, patient intake — each with domain-tuned RAG and persistent user context.
CrewAI Persistent Memory FastAPI
Career Journey

Work Experience

Feb 2024 — Present
Staff Software Engineer
Data Works Technologies
  • Architected production-grade backend systems with FastAPI & Flask, integrating Hugging Face Transformers into scalable microservices deployed on AWS & GCP.
  • Achieved 99.99% uptime under heavy workloads across EC2, S3, Lambda, and ECS with auto-scaling strategies.
  • Built an AI candidate scoring engine using semantic similarity and weighted NLP algorithms, improving match accuracy by 40%.
  • Integrated CrewAI, Gemini, and T5-based LLMs for document understanding, resume parsing, and intelligent data extraction workflows.
  • Designed and deployed RAG (Retrieval-Augmented Generation) pipelines over resume, job-description, and internal knowledge-base corpora — using vector embeddings for semantic retrieval to ground LLM outputs and cut hallucinated responses in candidate/document Q&A workflows.
  • Developed ETL pipelines for millions of records using PySpark and AWS S3 Parquet, powering downstream Power BI dashboards.
Sep 2021 — Feb 2024
Senior Software Engineer
Mirafra Technologies
  • Built high-performance systems with FastAPI, Django, GraphQL for mission-critical products — TCRB, AARI, CureSoftware.
  • Architected APIs handling 2K+ requests/second with fault tolerance and horizontal scalability across microservices.
  • Designed real-time monitoring dashboards that reduced production debugging time by 45%.
  • Implemented end-to-end CI/CD pipelines via GitHub Actions and Docker, standardising deployment across dev, QA, and production.
  • Mentored junior developers in Python backend patterns, ORM optimisation, and containerised deployment best practices.
Jun 2019 — Jul 2020
Software Engineer
Walmart Labs
  • Engineered Flask-based microservices for supply chain workflows, improving backend processing efficiency by 25%.
  • Delivered 99.99% uptime handling 20K+ concurrent requests per minute across distributed clusters.
  • Reduced REST API response latency by 30% across internal and external integrations.
  • Implemented CD pipelines with Jenkins & Docker, compressing deployment time from hours to minutes.
Jun 2017 — Jun 2019
Software Engineer
IamHere Software Labs
  • Developed end-to-end backend systems with Flask and Django for data-driven web applications and internal tools.
  • Engineered an SMTP-based automated email delivery system — cut manual intervention by 70%.
  • Built custom reporting dashboards in Python + PostgreSQL enabling stakeholder data insights.
Key Achievements

Impact Highlights

01
AI Candidate Scoring Engine
Semantic similarity + weighted NLP algorithms to match candidates against job requirements at scale.
↑ 40% Match Accuracy
02
Real-Time Monitoring Dashboard
Django + PostgreSQL observability platform dramatically cutting production debugging cycles.
↓ 45% Debug Time
03
High-Throughput API Systems
Distributed API infrastructure handling 20K+ concurrent req/min with guaranteed 99.99% uptime at Walmart.
20K+ req/min
04
CI/CD Pipeline Automation
Jenkins & Docker pipelines that compressed multi-hour deployment cycles into fast, automated releases.
Hours → Minutes
05
LLM Document Intelligence
CrewAI, Gemini, T5-based LLMs for intelligent document understanding and resume parsing at enterprise scale.
Millions of Records
06
Email Delivery Automation
SMTP-based automated delivery system eliminating manual communication workflows at IamHere Labs.
↓ 70% Manual Work
Education

Academic Background

Master of Computer Applications
Bangalore University · 2013–2016
English · Hindi · Marathi · Kannada
Get In Touch

Let's build
something great.

Open to full-time roles, contract work, and founder partnerships in backend engineering and AI systems. Compensation is always open for discussion for the right role — if what you're building is ambitious, I want to hear about it.

📞 Call Me Now → Send a Message