Siddharth M

I run SpellRoad, where I use AI to grow revenue and margins for founders

Ex-Amazon Principal PM-Tech · Built for 100M+ customers in 10+ countries · IIM Ahmedabad

Work

Present
Principal Product Manager - Tech, Amazon
Homepage, Navigation & Browse (Amazon app, India & Emerging Markets)
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  • Led Homepage, Navigation and Browse for Amazon India and 10+ countries across the Middle East, Latin America and Far East, serving 100M+ monthly active users; drove the strategy, roadmap and execution with a cross-functional team of 20+ product managers, designers and engineers
  • Transformed the browsing experience with a hyper-personalized product feed across key pages; redesigned the mobile Homepage to enhance visual appeal and balance product relevance, advertising and strategic business priorities, delivering nine-figure topline impact in USD
  • Built visual navigation across 60+ shopping categories and connected services, reaching 70M+ monthly active users, and drove a global navigation redesign that reduced abandonment by 2,200 bps
  • Established the product and technology charter for Beauty and FMCG categories, introducing AR virtual try-on and ML-powered search; launched Pantry storefront, cart and reorder experiences that increased conversion by 4.5% and units per order by 12%
  • Led supply-chain programs for Amazon India, increasing regional in-stock availability by 1,100 basis points and one-day delivery speed by 18%; reduced Books cost to serve by 4% and delivered India's largest preorder with 99.2% on-time fulfillment
  • Owned the flagship grocery event's P&L, achieving gross-margin profitability and 5× year-over-year sales growth
  • Managed the Seller Fee Program, working across category, finance, legal and tax teams; onboarded 30+ marquee sellers to meet evolving regulatory requirements
Sep 2015 - Mar 2026

Building

Workflow automation

AdvocateDesk

advocatedesk.app ↗
  • Legal workflow automation for document reviews, property title verification, and legal opinion drafts
  • Saves 30+ hours per week per advocate

CiteGap

citegap.com ↗
  • Increase brand visibility across ChatGPT, Google AI, and Claude with a 30-60-90 day plan
  • An automated pipeline runs 1,000+ live queries for diagnosis

Apps

CalWise

  • Snap a photo or type your meal, get calories and macros tracked instantly
  • No weighing or manual logging

SaveToExo

savetoexo.com ↗
  • Save links, tweets and videos and get instant summaries
  • Your personal knowledge base that ChatGPT and Claude can query

Tinkering

AI badminton coach

Write-up →
  • Coaching feedback from ordinary WhatsApp badminton videos
  • A personal eval for whether video models can follow the action and give useful advice

Personal AI health assistant (Anira)

GitHub ↗
  • An always-on health assistant, personalized to my context in real time. Write-up ↗
  • Runs on a VPS that pulls WHOOP, CalWise nutrition, calendar and lab data into one durable, auto-updating context

Agents that grade their own reasoning

GitHub ↗
  • Seven Claude Code subagents forecast IPL match odds and check themselves against live Polymarket prices
  • They rewrite their own rules when they're wrong, no human in the loop

Interests

Badminton

Advanced club-level player

Fitness

Take sleep and nutrition more seriously than most people find normal

Poker

Comfortable playing micro stakes to high stakes

Arsenal

20 years of higher highs and lower lows

Contact

Would love to catch up on building with AI, and product strategy.

GitHub dashthird-0
X / Twitter @dash_third
Writing My writing →