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Expertise

What I bring to a team.

Four areas I go deep in. Everything here is something I've shipped to production - not a line on a skills list.

01

Backend & APIs

Design and build the APIs and data models a product runs on - fast, correct, and still sane a year later.

Core strength
PythonDjango / DRFFastAPIPostgreSQLRedisCelery

What it looks like

  • REST and WebSocket APIs with documented, versioned contracts
  • Relational data modelling, query & ORM optimisation, caching
  • Auth, roles & permissions (RBAC), rate limiting
  • Background jobs, queues and scheduled pipelines
  • Observability: structured logging, metrics and error tracking

Shipped in

D2C storefront · Scan2Serve POS · AgencyWale marketplace

02

AI & LLM systems

Take an AI idea out of the notebook and into production - grounded, guarded, and fast enough to sit in front of users.

In production
LangChainLangGraphRAGVector searchOpenAI / ClaudeFastAPI

What it looks like

  • RAG and hybrid semantic + keyword search over your own data
  • LLM automation for support, intake, triage & document workflows
  • Agentic workflows with tool use and human-in-the-loop
  • Guardrails, evaluation and latency / cost optimisation
  • Streaming chat and smart-search UX wired into the product

Shipped in

LLM support automation · Survey analysis · Jobs classification

03

Real-time & systems

Build the live, multi-tenant plumbing that has to stay correct under concurrency.

Real-time
Django ChannelsWebSocketsWebRTCPostgreSQLComputer Vision

What it looks like

  • Real-time updates over WebSockets (dashboards, chat, order flow)
  • Audio / video calling with WebRTC
  • Multi-tenant architecture with per-tenant isolation and RBAC
  • Transactional correctness: billing, inventory, split payments
  • Computer-vision pipelines over live camera streams

Shipped in

Scan2Serve real-time POS · Person detection & re-ID

04

Full product & cloud

Own a vertical slice end to end - including the frontend and the deploy - when a project needs one person to carry it.

End-to-end
Next.jsAWSDockerNginxCI/CD

What it looks like

  • Server-rendered Next.js frontends for speed and SEO
  • AWS: EC2, Lambda, S3, RDS, API Gateway, CloudWatch
  • Docker, Nginx, CI/CD and staging environments
  • Payments, order lifecycle and admin dashboards
  • Clean handover: documented, reproducible, maintainable

Shipped in

D2C storefront · Scan2Serve · PaperMaker

Hemant Manglani

Hemant Manglani

Ahmedabad, India

Looking for someone who ships? Let’s talk.

I’m actively looking for a backend or AI engineering role. If your team needs an engineer who can own systems end to end, I’d love to hear about it.

Actively looking · Ahmedabad · on-site, hybrid or remote