HELLO, I'M

Satish Chaudhary

> Backend Developer

I build scalable APIs and robust backend systems. I care about the seams between a good idea and a reliable product.

AVAILABLE FOR SELECT PROJECTS
PORTLAND, OREGON
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02 / FINTECH

Ledger API_

ROLE
Backend engineer
YEAR
2023 - 2024
STACK
TYPESCRIPT · NODE.JS · POSTGRESQL · DOCKER

A double-entry accounting core exposed as a small HTTP API. Every balance is derived from immutable journal entries rather than stored and mutated, so the books can always be reconstructed from history.

Correctness came before convenience: writes are transactional and idempotent, and the schema makes an unbalanced entry impossible to persist rather than merely discouraged.

Highlights

  • [ Immutable journal entries with derived, cached balances ]
  • [ Idempotent writes keyed on client-supplied request ids ]
  • [ Serializable transactions guarding every balance mutation ]
  • [ Point-in-time reporting reconstructed from the entry log ]
[ SOURCE ] [ LIVE DEMO ]