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Chandan Kalita

@chandankalita

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Full-stack software engineer building end-to-end products, strongest in TypeScript/Python on GCP.

India

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What I'm looking for

I’m looking to own end-to-end features—from data model to UI—on small teams, shipping production systems. I’m especially excited to build TypeScript/Python services on GCP, with clear product impact and security-minded engineering.

I’m a generalist full-stack software engineer with 4 years building products end-to-end across frontend, backend, and cloud infrastructure. I take features from data model to UI, and I thrive in early-stage, small-team environments where production shipping matters.

At Pactify, I built an AI-powered contract engine, designed secure multi-party e-signing with integrity-preserving verification, and engineered a unified encrypted email inbox with non-blocking incremental sync. Previously, I led a ride-hailing backend from scratch, delivering real-time driver/rider tracking on Firestore, a tiered matching algorithm, and Python/FastAPI services for billing and location management.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Pactify Pty Ltd

Feb 2025 - Present (1 year 5 months)

Generalist engineer on an all-in-one operating system for talent-management agencies, contributing across frontend, backend, and infrastructure. Built an AI-powered contract engine, designed a parallel multi-party e-signing workflow, and engineered an encrypted unified inbox with incremental Gmail syncing using Cloud Tasks.

Cloud Tasks Encryption Performance Optimization RBAC

Software Developer

Jadu Infotech

Jun 2023 - Dec 2024 (1 year 6 months)

Sole backend developer and technical lead for a ride-hailing platform built from scratch by a small team. Owned backend delivery to production for the launch city, including real-time driver/rider location tracking with Firestore, driver matching logic, and Python/FastAPI billing and location services.

Real Time Tracking Firestore Driver Matching Algorithm Fare Calculation Google Maps Distance API Billing Services Python fastAPI Technical Leadership

Junior Software Engineer

Ekok Technocrat

Mar 2022 - May 2023 (1 year 2 months)

Delivered admin dashboards and backend systems for multiple clients at a services company, working primarily with PHP/Laravel. Built a multi-vendor e-commerce backend and reporting dashboards integrating YouTube/Facebook APIs, and implemented a karate-tournament leaderboard with live poll results.

PHP Laravel Multi Vendor E Commerce Backend Leaderboards Polling Dashboarding