Actively building · Product Management

Gautam Kumar

Turning user problems into shipped product.

Product Manager at PhysicsWallah, building Pi Lens — scaled from 0 to 300K+ users. Data-driven strategy, GTM, and 0→1 execution that moves real metrics.

300K+ downloads ₹320Cr+ scaled 4.7★ rating
Impact

Not just shipped. Moved the needle.

0
Pi Lens app downloads, 0 to 300K
0
AI content accuracy, up from 75%
0
Play Store rating, up from 4.3★
0
IITJEE category business scaled
0
User retention lift
0
Products built from scratch
Skills

A product mind, sharpened by scale.

Product Strategy GTM & Growth Data-Driven Decisions 0→1 Building Cross-Functional Leadership Retention & Engagement A/B Testing Stakeholder Management User Research
The story

It all started with my own startup. That's where I learned what entrepreneurship really means.

From there, I dove into the startup ecosystem — working across EdTech, E-Mobility, and more.

Somewhere in between, I took an unexpected turn and served with the Government of India as a Station Master in the Railways.

Every chapter taught me something — how to align teams, scale fast, and persevere when it gets hard.

Today, I'm using those skills to shape the future of learning in India, at PhysicsWallah — building products that matter, feature by feature, release by release.

The full journey

Six roles. One thread — building for people at scale.

2019 – 2021
Founder
ReaderSpace — WhatsApp News Analysis

Built a WhatsApp-based news service that demystified daily current affairs for readers. Grew to 4,000+ members, including 500 active paid subscribers, reaching an ₹18,000 ARR milestone.

2021 – 2023
Early Member, Product & Growth
MathonGo · MARKS App

Scaled MathonGo's YouTube channel and the MARKS app for JEE/NEET aspirants. Grew a 30,000+ student Telegram community, MARKS crossed 100K+ downloads at a 4.8 rating, and MARKS YouTube reached 52K+ subscribers and 15.4M views.

2022
Intern, Community Building
Yulu Bikes

Spent two months understanding gig-economy delivery partners across Bengaluru. The empowerment program he proposed became the seed for Yulu's #YuSmart initiative, launched two years later.

Sept 2023 – Jan 2025
Station Master
Indian Railways — Dedicated Freight Corridor

A full-time government posting at one of India's largest freight junctions. Handled 2,400+ monthly train operations, coordinated across 5+ departments, and kept the wheel — literally — never stopping.

May 2025 – Nov 2025
Category Business Lead
PhysicsWallah — IITJEE

Ran growth & strategy for a ₹320 Cr+ business, PW's IITJEE category. Built pricing, GTM, and engagement plays that lifted attendance uptick by 4% and shipped new offerings like the PYQ Blueprint.

Dec 2025 – Present
Product, AI Pod
PhysicsWallah — Pi Lens

Building Pi Lens, India's first YouTube-layer learning app — summaries, quizzes, and AI answers on any video. Scaled it 0 → 300K downloads and counting, while pushing the Play Store rating from 4.3★ to 4.7★.

Education

Grounded in both business and the ground reality.

Gati Shakti Vishwavidyalaya BBA, Transportation Management
Indian Institute of Management (IIM) MBA Admission offer, not joined
Mesa School of Business PGP in Startup Leadership Admission offer, not joined
Get in touch

Let's build something
worth shipping.

Open to product conversations, collaborations, and good ideas.