Kalpesh

I build the backend that moves the money.

I'm Kalpesh, a backend engineer. I work on payments and wallet transaction systems in Clojure, where every transaction has to be correct the first time.

Lately I'm building AI-heavy backends in Python and wiring multi-agent pipelines into everyday engineering work.

Email me GitHub

Work

Peak 42 Innovation Labs

Software Engineer
October 2022 to now

  • Build and maintain a Clojure platform that connects operators to third-party providers.
  • Own the wallet transaction path for debits, credits and refunds, keyed on request id so retries are safe to replay.
  • Integrate provider APIs over XML and JSON with HMAC-signed requests, OAuth2 sign-in across identity providers, and Redis-backed sessions.
  • Tune ClickHouse queries and materialized views behind high-volume transaction reporting.
  • Built a Telegram Mini App bot system that serves several brands from one backend, with per-locale content.
  • Run AI-assisted reviews of the core backend services using multi-agent Claude Code pipelines.

Projects

  • Turf booking platform

    Slot booking with online payments for a cricket and football turf I run. I'm rebuilding it as one multi-tenant backend so other venues can run their own booking sites on it.

    Python, Postgres, AWS, Razorpay

    In daily use

  • Multi-agent coding pipelines

    Claude Code workflows that split a change into research, schema, implementation and review agents, with handoff files that carry context between sessions and custom slash commands.

    Claude Code, custom agents

    In daily use

What I work with

Languages
Clojure, Python, SQL
Data
MySQL, Postgres, ClickHouse, Redis
Domains
Payments, wallets and ledgers, third-party provider integrations
AI
Agent pipelines, LLM-assisted code review, Claude Code tooling

Contact

I'm open to AI-heavy backend and senior backend roles. Email is the fastest way to reach me.

hi@kalpesh.io GitHub