Two surfers waiting in the lineup at dawn as a clean wave peels behind them
kent@nyc ~ % whoami
iOS Software Engineer · New York

Kent Waxman

I build mobile products people actually enjoy using. Currently making the FanDuel Sportsbook app fast and reliable for millions of users.

See my work Résumé
My dad and me, waiting on a set.
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About

I'm an iOS engineer who cares about the details: smooth animations, fast launches, and code a teammate can read a year later.

At FanDuel I work on the Sportsbook team, making one of the busiest sports betting apps in the country launch fast, scroll smoothly, and hold up when millions of people open it at once on Super Bowl Sunday. Before that I spent three and a half years on the Daily Fantasy app, and interned on the iOS teams at Twitter and Cabana Health.

AI is the other half of how I work, and I use it the way a lead uses a strong team: I write the spec, direct the agents against it, and own the architecture and every review. I keep up with new models and tooling as they land so I know exactly where to trust them and where not to.

I live in New York. Outside of work I run, read, golf, and surf when I can get to a coast. The photo above is my dad and me.

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Experience

Feb 2026 — Present

Software Engineer, Sportsbook · FanDuel

  • Own app performance for one of the highest-traffic sports betting apps in the US: launch time, frame rate, memory, crash rate, and build times at p50, p70, and p90.
  • Built the Sportsbook performance benchmark pipeline, a CI system that catches regressions before release and has become a popular tool across FanDuel's iOS, Android, and web teams.
  • Set the iOS concurrency and native performance standards other FanDuel teams follow.
  • Led the end-to-end migration of the app's push notification and messaging SDK across every platform, and keep the app stable through peak events like the Super Bowl.
Sep 2022 — Feb 2026

Software Engineer, Daily Fantasy · FanDuel

  • Shipped large native iOS features for the FanDuel Daily Fantasy app.
  • Led the iOS side of the app's full rebrand.
  • Helped migrate the codebase from UIKit to SwiftUI.
Jun — Aug 2021

iOS Engineering Intern · Twitter

  • Built out the Twitter share sheet, one of the most-used surfaces in the app, and shipped it to production on the Customer Journey Experience team.
  • Owned fixes and test coverage for Share to Instagram, Share to Snapchat, and Google Sign-On. One of 200 interns selected from more than 11,000 applicants.
Oct 2020 — Feb 2021

iOS Developer Intern · Cabana Health

  • Built signup, the Explore page, and Firebase search for a social wellness app that syncs activity across friends' wearables.
  • Helped scale the Google Cloud backend and ran TestFlight betas with more than 500 users.
2016 — 2018

Application Developer · Loggerhead Marinelife Center

  • Designed, built, and shipped the first iOS app for a sea turtle rehabilitation nonprofit in Juno Beach, FL, while in high school, working directly with marine biologists on what it should do.

Education. BA in Computer Science, minor in Creative Technology and Design, University of Colorado Boulder, 2022.

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Projects

Divvy

An iOS app that splits a restaurant bill from a photo of the receipt. I designed and built it end to end: SwiftUI, a Python backend, Stripe payments, and an AI layer where Claude Vision reads the receipt and a natural-language parser lets you say "Sarah had the pasta" and watch the bill assign itself. Built spec-first, with every feature starting as an acceptance contract I write and AI agents directed against it, while I own the architecture and every review. More than 1,500 commits since February.

SwiftSwiftUIClaude APIClaude VisionLLM evalsSpec-driven devFirebasePythonStripe

apt-bot

An NYC apartment-hunting bot built for my own search. It reads listing alert emails, enriches each one with public data like 311 noise complaints, HPD violations, and commute time, scores it with a formula plus Claude, and publishes a shared dashboard. Python and Supabase, running on a Raspberry Pi.

PythonClaude APISupabaseVercelRaspberry Pi
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Skills

iOS

  • Swift & SwiftUI
  • UIKit
  • Combine & Swift Concurrency
  • XCTest & UI testing
  • Performance profiling (Instruments, MetricKit)

Web & Backend

  • HTML, CSS & JavaScript
  • React & React Native
  • Python
  • Firebase (Auth, Firestore, Functions)
  • Supabase / Postgres
  • REST & GraphQL APIs

AI

  • Claude API & agents
  • Claude Code & MCP servers
  • AI-assisted planning & code review
  • Automated CI & ticket workflows

Tooling & Process

  • Xcode & xcodebuild CI
  • Performance benchmark pipelines
  • GitHub Actions
  • Jira automation
  • Fastlane
  • Design partnership & Figma
~ % mail kent

Get in touch

I'm always happy to talk about iOS, app performance, AI tooling, or a good book.

Email me GitHub LinkedIn