Work · Parth Kadam

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Gauge.ro

SDE Intern

May 2026-Present

Bengaluru (Remote)

Gauge.ro builds IoT water purifiers and the software that monitors and services them in the field.

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Owned production backend services across 5 applications (customer PWA, field-ops PWA, core API and internal tools) using Node.js, PostgreSQL, MQTT and WebSockets.

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Built an automated post-install QA platform covering 9 validation scenarios: a Node service talks to devices over MQTT, checks sensor responses, and streams results live to a React console, so install checks are one run instead of a manual checklist.

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Made the backend device-version aware across 2 hardware generations, so a new generation shipped on the same APIs and alerts while older devices kept working.

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Fixed production noise: duplicate push/WhatsApp alerts, false service tickets from flaky sensors, and job queues that were retry-flooding under load.

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Owned device onboarding end to end (inventory → customer bind → telemetry on) with internal APIs and an admin UI, replacing a multi-step ops/DB process.

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Shipped 10+ production API PRs to the live product.

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Tech Stack: Node.js, Next.js, PostgreSQL/TimescaleDB, PgBoss, MQTT, EMQX, Grafana, Jenkins/PM2, Websockets

> shipped

PaperDesk

A multi-service paper exchange for spot and USD-margined perpetuals.

Overview

PaperDesk is a multi-service paper exchange for spot and USD-margined perpetuals. It is built to show the path after Buy: a single-writer matching engine, an OMS with a Postgres outbox, a gateway over Redis Streams and SSE, and a separate Timescale writer for history. Balances are paper money. The point of the project is durable order flow, reconnects, and crash windows that a single CRUD API usually hides.

Highlights

Spot + perpetual markets
Single-writer matching engine
WAL and snapshot recovery
OMS outbox over Redis Streams
SSE reconnect with catch-up
Margin, mark, liquidation, funding
Timescale market history
Grafana ops dashboard

Built with TypeScript, Node.js, React, Next.js, Hono, SSE, Redis Streams, Redis Pub/Sub, PostgreSQL, Prisma, TimescaleDB, Prometheus, Grafana, Loki, Docker, pm2, nginx, GitHub Actions

Try it Yourself Github Repo Architecture Breakdown

ColabCanvas

A collaborative whiteboard inspired by Excalidraw that enables multiple users to draw together in real time.

Overview

ColabCanvas was built to explore the challenges of real-time collaboration at scale. It uses WebSockets for low-latency communication and a monorepo to share types across the frontend, REST API, and collaboration service.

Highlights

Real-time Drawing
Multi-room collaboration
Live presence cursors
Infinite canvas with drawing tools
Secure authentication

Built with Next.js, TypeScript, Node.js, Express, WebSockets, PostgreSQL, Prisma, Zod, Cloudinary, Turborepo, Docker

Try it Yourself Github Repo Architecture Breakdown

WTF is Running

A read-only CLI that shows what is actually running on a Linux server, and how those services connect.

Overview

SSH leaves you with docker ps, ss, and systemctl, and none of them answer how the box is wired. wtfisrunning discovers containers, listening ports, nginx proxy paths, and systemd units over a local scan or SSH, then draws that as a topology in the terminal. Nothing is installed on the server.

Highlights