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About

Senior engineer. Small team. Fully accountable.

Hemant Manglani

Hemant Manglani

Senior Product Engineer

Ahmedabad, India · UTC+5:30

I'm Hemant, a product engineer based in Ahmedabad, India, with 6+ years building production software, deep backend and AI roots, and the React and Next.js frontend skills to ship the whole product. I don't sell hours; I own outcomes. From the data model to the deploy, I decide what to build, ship it, and stay accountable for whether it works.

Most of my work is the unglamorous, load-bearing kind: the API that has to stay fast under load, the real-time pipeline that can't drop a message, the AI feature that has to be right in front of a paying customer. I've shipped e-commerce, restaurant POS, marketplaces and LLM systems, end to end, in production, much of it client software under NDA.

I lead the build myself and bring in a small, trusted bench of professional freelance specialists, frontend and UI/UX designers, QA, and a business analyst, when a project needs more hands or a tighter deadline. They work in parallel on their own pieces while I keep everything integrated, so you get one accountable person who has done this before, not a rotating cast and a project manager relaying messages.

Experience

Six years of shipping.

Aug 2022 – Present

Lead Backend / Product Engineer

Pyonix Technology

  • Architected and shipped multiple production SaaS platforms on Django, FastAPI and AWS, owning backend design, build and deployment end to end.
  • Built a scalable e-commerce backend with secure payments, order-lifecycle management, notifications and admin workflows.
  • Designed a multi-tenant SaaS platform for agency discovery, search and lead management.
  • Built real-time chat and audio-calling over WebSockets and WebRTC.
  • Integrated LLM-powered support automation (FAQ handling, contextual responses, semantic search) into live production systems.

Jan 2021 – Aug 2022

Backend Developer (Freelance)

Self-employed

  • Delivered backend solutions for multiple client applications in Django and FastAPI.
  • Designed REST APIs, authentication flows and real-time features with Python WebSockets.
  • Implemented NLP-based chat analysis and voice-assistant integrations.
  • Worked directly with clients to gather requirements and ship production-ready software.

Jul 2019 – Dec 2021

Software Engineer

Softvan Pvt. Ltd.

  • Built ML, deep-learning, computer-vision and NLP solutions across text, image and speech.
  • Built backend services on AWS Lambda and FastAPI with automated deployment pipelines.
  • Implemented Elasticsearch capabilities: fuzzy search, n-gram and round-robin querying.
  • Led a team of four and was the primary point of contact for daily client communication.
Stack

What I build with.

Languages & Frameworks

PythonDjangoDjango RESTFastAPIFlaskReactNext.jsTypeScriptWebSocketsMicroservices

AI / LLM

LangChainLangGraphRAGSemantic SearchChatbot AutomationLLM APIs

Databases

PostgreSQLMongoDBDynamoDBRedisSQLAlchemyORM Optimization

Cloud & DevOps

AWS (EC2, Lambda, S3, API Gateway)DockerCI/CDNginxCloudWatch

Also

WebRTC (audio/video)ElasticsearchSeleniumGitComputer Vision

Education

B.E. Information Technology

Apollo Institute of Engineering & Technology, Ahmedabad

2015 – 2019

CGPA 8.64 / 10 · Final-year project: an athlete-intelligence system comparing user posture against professional athletes.

Certifications

  • Machine Learning Specialization, Stanford / Coursera (Andrew Ng), 2020
  • Deep Learning Specialization, deeplearning.ai (Andrew Ng), 2021
Hemant Manglani

Hemant Manglani

Ahmedabad, India

Have a product that has to work? Let’s talk.

A 20-minute call, no pitch. We work out whether this is a real problem worth solving, and if I’m not the right person, I’ll tell you.

Every message answered within one business day