Rohit Kumar
I am a Head of Product with 13+ years in operations, supply chain, and marketplaces, including 8+ years at Amazon, the last 4 as Principal Product Manager.
Work samples
Each page below shows recent PM work at my current company, a buy now, pay later fintech, and how I used AI in it. Samples 1 to 4 open with an interactive recreation of the tool my team used in production, on dummy data. Sample 5 opens with a flowchart and sample 6 with a prototype.
- On-time delivery control tower for logistics
Strategic and tactical views of on-time delivery, from headline numbers down to the orders to fix.
- Interactive merchant enrollment plan for logistics
A merchant enrollment model that balances budget, headcount, and freight costs, with what-if scenarios and goal-seek.
- Product roadmap coordination across team tools
One engineering plan as a Gantt chart, checked against the team tracker and each person’s capacity, and published to Linear.
- Marketplace AI support agent evaluation
A Sankey diagram of where an AI support agent’s customer contacts went, and the bars it had to clear before launch.
- Claude Code workspace for product management
One Claude Code workspace behind my logistics, customer experience, product management, and executive team work.
- Agentic workflow for seller logistics operationsDiscovery stage
An agent that compares a seller’s requested change with similar sellers and sends only large changes to a person.
How I built this site
I built this site with AI, including a microblog, an open-source theme library (downloads below), and this portfolio of selected work. I used mostly Claude Code in Visual Studio Code, with Wispr Flow for dictation, and everything runs on Hugo, GitHub, and Netlify. I started with little web design or coding experience, and Vercel’s v0 and ChatGPT got me through the first versions. The repository now has 300+ commits since July 2025. I settled on Opus 5.5 at high effort for professional work, extra-high for my product management workspace, and Sonnet 5.5 at medium for quick questions. Fable models suit multi-agent workflows, which most product work does not need.
- Roark
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Light and minimal. Named after Howard Roark of The Fountainhead, who put function over form.
- Jekyll
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Roark in dark mode, on a dot grid. Named after Dr. Jekyll, since it is the same theme with another side.
- Durden
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Monospace in black and green. Named after Tyler Durden of Fight Club, since it is never complete.