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Portrait illustration of Gaurav Kumar

Gaurav Kumar

I build the parts you never notice.

For three years I've shipped APIs, data models, and infrastructure for healthcare products used by hospitals, universities, and clinics. I care about systems that are correct, easy to operate, and quiet in production.

  • NestJS
  • PostgreSQL
  • TypeScript
  • Go

Open to backend roles & select freelance work

01

Experience

Production work, mostly in healthcare. Small teams, real users, and systems that had to keep running.

Nov 2022 — Aug 2025

Remote · India

CognitiveClouds / Mahalo

Associate Software Engineer

  • Led backend development for multiple client products using NestJS, TypeScript, and PostgreSQL.
  • Built and maintained services for 5+ healthcare platforms used by hospitals, universities, and independent health businesses.
  • Worked directly with clients to turn product requirements into technical specifications and production-ready systems.
Full responsibilities08
  • 01Designed core modules including appointment booking, video consultations via SDK integrations, transcription pipelines, LMS flows, and health tracking.
  • 02Implemented integrations for wearables, payment gateways, and third-party services to support sleep, food, and activity tracking.
  • 03Built scalable notification systems across SMS, email, and push, with advanced PostgreSQL aggregation queries for analytics and reporting.
  • 04Designed APIs for admin dashboards, clinician-participant workflows, and multi-tenant healthcare platforms.
  • 05Collaborated with frontend teams on API integration and with QA on end-to-end feature validation.
  • 06Contributed to internal healthcare products built on multi-tenant architecture.
  • 07Built proof-of-concepts for automation bots and experimental features to improve internal workflows.
  • 08Maintained live client systems by resolving production issues and improving reliability and performance.
  • NestJS
  • TypeScript
  • PostgreSQL

Mar 2022 — Oct 2022

Remote · India

FunctionUp

Teaching Assistant

  • Took teaching-assistant sessions on Node.js, JavaScript, and data structures.
  • Reviewed student projects and gave implementation feedback.
  • Built practical backend projects alongside mentors and peers.
Full responsibilities03
  • 01Strengthened core coding fundamentals while working through guided learning tracks.
  • 02Helped explain Node.js, JavaScript, and DSA concepts to students.
  • 03Reviewed code and suggested improvements to student projects.
  • JavaScript
  • Node.js
  • DSA
02

Company work

Client products, 2022–2025. Healthcare systems that shipped and stayed shipped.

All work

Cadence

Healthcare · Research

Cadence is a research-focused health app developed with NTU to monitor heart health. It includes real-time patient-coach chat, sleep and step tracking, action scores, automated questionnaires, and analytics dashboards for researchers.

  • NestJS
  • PostgreSQL
  • Sequelize
  • TypeScript
  • Firebase
Engineering notes
  • Real-time patient-coach chat
  • Sleep and step tracking
  • Daily and weekly action scores
  • Medication tracker
  • Detailed analytics for researchers
  • Big Query + Firebase integrations

Schweiger Allergy

Healthcare · Patient engagement

SDG is a healthcare platform enhancing patient engagement with real-time doctor-patient chat, medication reminders, subscription-based programs, secure payments via Square, EMR integration with ModMed, and scalable event-driven architecture using GCP Pub/Sub.

  • NestJS
  • PostgreSQL
  • Socket.IO
  • GCP Pub/Sub
  • TypeScript
Engineering notes
  • Subscription-based payments
  • Secure payment processing via Square
  • Integration with ModMed EMR
  • Medication adherence tracking
  • Event-driven architecture with GCP Pub/Sub
  • Reminders & notifications
  • Insurance activity tracking

MedLinks

Healthcare · Patient care

MedLinks is a patient-care platform that delivers personalized health programs, tracks core metrics like weight, blood pressure, and glucose, and helps care teams monitor progress through provider dashboards and reminders.

  • NestJS
  • PostgreSQL
  • TypeScript
  • Firebase
  • GCP
Engineering notes
  • Custom health programs
  • Health metric tracking
  • Provider dashboards
  • Notifications & reminders
  • Progress insights
03

Personal work

Products, tools, and packages built for myself. Code is public where I can share it.

All projects

Rebupl

Launch platform

A weekly launch board and creator directory — Monday drops, permanent pages, and verified folios.

  • Nextjs
  • TypeScript
  • TailwindCss
  • React
Engineering notes
  • Weekly product launch board with Monday drops
  • Permanent product pages with dofollow links
  • Verified creator folios and direct briefs
  • Editorial coverage and cross-posts for premium launches
  • Free launch tools — name, tagline, slug, meta, and domain checks

Utils

Utility suite

584 local-first browser tools across 29 shelves — no sign-in, no uploads, no installs.

  • Nextjs
  • TypeScript
  • TailwindCss
  • React
Engineering notes
  • 584 tools organised across 29 job-based shelves
  • Image, video, audio, and PDF processing in the browser
  • Developer, text, data, and SEO utilities
  • No accounts, no uploads — files never leave the device
  • Full-text search and category filtering across the catalogue

CodeCript

Learning platformIn progress

An open-source learning hub for JavaScript, TypeScript, Go, data structures, and system design.

  • Vitejs
  • TailwindCss
  • Cloudflare
  • TypeScript
  • Npm
Engineering notes
  • Core documentation structure for languages, DSA, and system design
  • JavaScript fundamentals and deep-dive guides
  • Technical blog section for software engineering concepts
  • Open-source contribution workflow for community additions
  • Deployment on Cloudflare Pages with fast global delivery

Scaffoldor

Developer toolIn progress

Find and clone open-source starter templates without the commit history.

  • Vitejs
  • TailwindCss
  • TypeScript
  • Nodejs
  • Npm
Engineering notes
  • A public schema so anyone can share templates
  • Core CLI architecture designed and implemented
  • Built for more than just node based system
  • Supporting gitlab and github
  • Supporting any package manager

On npm

Hanma CLI

v0.3.3

An npm CLI tool for downloading modular backend snippets, templates, and utilities from the Hanma registry. Designed specifically for backend developers.

npm ↗

Scaffoldor CLI

v1.0.0

An npm CLI tool for discovering and cloning production-grade starter templates from GitHub and GitLab directly to your machine without commit history overhead.

npm ↗
05

Toolkit

The tools I reach for, grouped by the job they do. Technology is a means, not a personality.

Languages

  • TypeScript
  • JavaScript
  • Go
  • SQL

Backend

  • NestJS
  • Node.js
  • Express
  • Hono
  • Bun

Data

  • PostgreSQL
  • MongoDB
  • Redis
  • BigQuery

Infrastructure

  • Docker
  • GCP
  • Firebase
  • Cloudflare
  • Vercel

Frontend

  • React
  • Next.js
  • Tailwind CSS

Practice

  • System design
  • API design
  • Multi-tenant architecture
  • CI/CD
06

Writing

Occasional notes on backend systems, tooling, and the things I break while learning.

Medium

07 / Contact

Have something to build?

I'm open to full-time backend roles and select freelance work. Tell me what you're building and what keeps breaking — I'll reply within a day.

gauravanurag36@gmail.com
Availability
Full-time / freelance
Timezone
IST · UTC+5:30
Reply
Within a day