Gagandeep Singh Sandhu in a striped white shirt, black turban and sunglasses, checking his watch

Gagandeep Singh Sandhuembedded engineer & product builder · Pune, India

From silicon to screen.Firmware, PCBs and the web apps that sit on top of them.

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Wearable · Hardware + Firmware

KINETIX health band

Multi-sensor wrist band with PPG, ECG, bioimpedance and temperature on a four-island rigid-flex board. FreeRTOS firmware, regression-tested. Patents in progress.

Apollo3FreeRTOSKiCadBLE

SIH 2026 · Team PegaSys

CryptoNetra

Traces a victim-reported crypto wallet to the most probable exchange, with a ranked evidence trail. FastAPI, React investigator console, trained ML models.

FastAPIReactML

About

Gagandeep

CSE student at VIT Pune. Builds hardware, firmware and the web.

Capstone · Computer vision

Sentinel AI

Multi-camera surveillance and investigation: cross-camera Re-ID, loitering and intrusion rules, semantic search, operator console. One file, numpy only.

PythonSQLiteStreamlit

CODE APEX 3.0 · iMocha IM-01

TraceCode

A coding assessment for the AI era. It records how a candidate works with AI help, not only whether the final answer passes.

Next.jsTypeScript

Client · Freelance web

American Bhau

americanbhau.in, with event registration, paid consulting, the Bhau Challenge and club sign-up flows.

WebFormsDeploy

Companion platform

Pulse

Web companion for KINETIX, with Nutrition Lens for Indian meals and Skin Studio for UV and hydration.

Next.js 15PrismaPostgres

Freelance · Video

Short-form edits

Vlog-style short-form video editing for creators, cut for pacing and retention.

Selected work

Drag sideways to spin the orbit

Manifest

HardwarewithoutHandoffs.

One builder.Every layer.

No black boxes.

Most products break at the seams. The board team blames firmware, firmware blames the app, and nobody owns the whole signal path.

I work across all of it: the sensor on a rigid-flex PCB, the FreeRTOS task that samples it, the BLE packet that carries it, and the Next.js dashboard that makes it readable.

Owning every layer means fewer meetings, faster bring-up, and decisions made with the whole system in view.

Just working builds.

for wearables, security tools and the web

systemsby design.

Firmware for ESP32, nRF52/53 and Ambiq Apollo. Rigid-flex boards in KiCad. Signal processing for PPG and ECG. And the full-stack web apps that put all of it in front of real users.

ESP32nRF5340Apollo3/4FreeRTOSBLEKiCadNext.jsPython

Origin/ My StoryBuildsHackathons

Engineering student at Vishwakarma Institute of Technology, Pune, in CSE with a focus on Cyber Security, IoT and Blockchain.

I started with microcontrollers and sensors, and kept climbing the stack until I could ship a whole product myself. Alongside college I freelance, building websites for clients and editing short-form video.

Things I have designed, flashed and shipped: KINETIX, Pulse, CryptoNetra, Sentinel AI, TraceCode and the American Bhau site.

Silicon: ESP32, nRF5340/52840, Ambiq Apollo3/4
Boards: KiCad, rigid-flex, SKiDL
Code: C/C++, FreeRTOS, Python, TypeScript
Web: Next.js, Prisma, FastAPI, React

I like a deadline. Recent competitions:

SIH 2026: Smart India Hackathon with team PegaSys. Built CryptoNetra for the Ministry of Home Affairs problem on fraud-linked crypto wallets.
Code Apex 3.0: VIT Pune, Oct 2026. iMocha track IM-01, building TraceCode.
Code Cubicle 6.0: Geek Room's hybrid hackathon, with my team.

Got a build in mind?

Let's meet up!