Brandon Mohajeri
Product manager. A decade in eCommerce and marketplaces. Now building AI products.
About me
Bridging product intuition and technical execution.
I studied Computer Science at Chapman, then spent nearly a decade in product — hypergrowth DTC at Dolls Kill, eCommerce personalization at Inkbox, seller experience for Walmart's $10B+ marketplace.
Then I stepped away from a comfortable job because I kept noticing that the most important product problems were somewhere else entirely. We're at an inflection point where one person can do what used to require a team of five.
The proof: Talimo— a full AI-powered medical education platform, built from scratch in four weeks. Design, product, engineering — solo.
Technical foundation
CS degree, built a full-stack AI product solo. I read code, understand system design tradeoffs, and ship.
AI product intuition
Hands-on experience building with LLMs, RAG, and non-deterministic systems. I know what's possible and what's hard.
Scale experience
Led product for 100K+ sellers at Walmart. Comfortable with complexity, cross-org alignment, and high-stakes tradeoffs.
Ruthless prioritization
Data-informed decisions paired with strong product instinct. I scope small and iterate fast.
Work
Things I've built and shipped
Deep dives into products I've built, focusing on the intersection of AI, product thinking, and execution.
Talimo
Solo BuildAn AI-powered medical education platform built from scratch in 4 weeks. 500+ active students, AI tutor with cross-feature context, real-time multiplayer.
Read case study➜ ~/mymind ollama run llama3.2
> loading model · 8.0B params · local
> agents online: health · finance · travel
>>> what needs my attention today?
thinking
MyMind
In ProgressA private AI assistant running entirely on a Mac mini. Six connected agents — health, finance, travel, life admin, and more — built around the question: what if your data never left your home?
Read the thinkingDeployToast
Just for funAn idle clicker about running a toaster startup. Ship features, hire humans, raise rounds, become a unicorn. A Cookie-Clicker homage, built in a week with AI.
Play the gameExperience
Where I've worked
- Designed, built, and shipped a full-stack AI education platform solo in 4 weeks — now used by 500+ medical and health science students
- Architected a streaming AI pipeline (Claude + Whisper + Next.js) that turns a 3-hour manual process into 30 seconds, handling lecture-to-study-material generation at scale
- Built a cross-feature AI tutor that tracks each student's strengths, weaknesses, and retention across the platform — then adapts content, explanations, and practice questions to target their specific gaps
- Led catalog onboarding and seller experience for a $10B+ marketplace supporting 100K+ third-party sellers
- Identified a high-friction onboarding gap where new sellers failed to create their first item — cut drop-off by 50% through a focused cross-functional roadmap
- Synthesized seller interviews, support data, and behavioral metrics to reduce catalog search error rates by 35%
- Drove a 20-point increase in ASUS score by prioritizing and shipping low-effort UX and quality fixes across seller workflows
- Owned the end-to-end eCommerce site experience, partnering with exec leadership to shape product priorities and align roadmap with growth goals
- Stood up an A/B testing platform and created a testing framework that informed roadmap decisions across the org
- Onboarded a personalization engine powering dynamic category pages with behavior-based ranking logic
- Supported hypergrowth at a Sequoia- and Maveron-backed DTC brand during a period of 10x revenue growth
- Launched an online returns portal, loyalty program, and referral flow — improving retention and reducing support volume
- Led digital initiatives enabling omnichannel expansion including in-store pickup and returns
Let's build something great.
Open to conversations about AI products, new opportunities, or interesting problems.
© 2026 Brandon Mohajeri