Available for fun problems

Hi, I'm Andrew. I build things people actually use.

Partner Engineer at Uber with 9+ years solving technical problems for external partners. I ship AI-powered tools, APIs, and full-stack consumer apps, from internal LLM/RAG tooling to apps live on the App Store.

Andrew Greenberg
πŸ“ Jersey City, NJ
πŸ‘‹ About me

I live at the crossroads of technical and customer-facing.

As a Partner Engineer, my favorite work happens in the space between deep technical problems and the people on the other side of them. I speak fluent engineer and fluent customer, and I love translating between the two: scoping the real problem, building the solution, and making sure it actually lands.

That same instinct carries into my own projects. I build consumer apps end-to-end with React, React Native, Swift, and a lot of Supabase, then ship them to real users and learn from how they use them. I hold a M.S. in Computer Science from Pace University.

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Technical x Customer-facing
I live at the crossroads of engineering and the people who use it, turning real customer problems into working solutions.
πŸš€
0 to 1
I take ideas from a blank repo to a shipped product, comfortable owning the whole path from spec to launch.
🧩
Full-stack & AI
Web, mobile, backend, and AI-powered tooling, I reach for whatever the problem actually needs.

My go-to stack

JavaScriptTypeScriptReactReact NativeSwiftNode / ExpressVuePythonSQLSupabaseLLMs / RAGMCPGoogle AnalyticsBigQuery

Things I've built & shipped.

A mix of consumer apps, developer tools, and a market scanner, all taken from idea to real users.

4.3β˜… on the App Store🎑
🎑

Dinner Spinner

Can't decide where to eat? Give it a spin.

A restaurant-roulette app that picks local spots for you based on distance, price, and cuisine. Web front-end in React with a native Swift iOS app, backed by a Node/Express API hitting Google Maps. ~350 monthly active users.

ReactSwiftNode/ExpressGoogle Maps API
Live on iOS & AndroidπŸ€„
Mahjong Mamas screenshot
Mahjong Mamas screenshot

Mahjong Mamas

Where every game night is a grand slam.

A full-stack social club app shipped to the App Store and Google Play. Multi-tenant clubs with role-based access, invite codes, recurring game scheduling, RSVP/waitlist management, and in-game chat. Built with React Native (Expo) + Supabase (Postgres, Edge Functions, Realtime), plus push notifications, SSO, and calendar sync.

React NativeExpoSupabaseEASRealtime
Closed Beta🎲
iBetYou screenshot
iBetYou screenshot

iBetYou

Friendly wagers, settled by AI judges.

A cross-platform friendly-betting app with a 4-step bet wizard, character-themed AI judges, a dice-based horse-race mini-game, friends & groups, a full bet lifecycle with ledger/settlement, and a native iMessage extension. Built on Expo React Native + Supabase with push notifications and deep linking.

React NativeTypeScriptSupabaseAI JudgesiMessage
Open SourceπŸ“ˆ
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Arbitrage Scanner

Sniffing out spreads across prediction markets.

A Python scanner that discovers overlapping markets between Polymarket and Kalshi, matches them conservatively with structural rules, subscribes to live quotes over WebSockets, and logs potential arbitrage spreads to CSV. Redis-backed with automatic rate-limit backoff.

PythonWebSocketsRedisPolymarketKalshi
πŸ—ΊοΈ The journey

Where I've been.

πŸš—

Partner Engineer Β· Uber

Oct 2023 - Present

Led 0-to-1 enterprise delivery integrations.

🌿

Solutions Engineer / Technical Account Manager Β· Branch

Jan 2023 - Oct 2023

Debugged JavaScript, Swift & Java across iOS, Android, and Web SDKs while managing accounts totaling $2.5MM+ ACV.

🐦

Partner Engineer II (Sr. Solutions Engineer) Β· Twitter

May 2022 - Jan 2023

Supported Twitter's largest partners (Amazon, Walmart, Publicis) on the Ads API ecosystem and saved $14MM by surfacing an undocumented endpoint and shipping docs plus code snippets.

πŸ“Š

Technical Implementation Consultant Β· Dun & Bradstreet

Feb 2020 - May 2022

Built Python scripts and React/Vue web apps to automate processes (20+ business hours saved per month) and a GTM community tag integrating Visitor Intelligence into Google Analytics.

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Analyst β†’ Data Technology Manager, Decision Sciences Β· 3Q Digital

Jul 2017 - Feb 2020

Led a team delivering Tag Management & Google Analytics audits and custom JavaScript tagging solutions for clients like LinkedIn and Intuit.

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Let's build something fun.

Whether it's a tricky integration, an AI-powered tool, or a weekend app idea, I'd love to hear about it.