Jake Servin
Lvl 4 · Web + iOS

Senior web & iOS engineer · Los Angeles · Hybrid or remote

I build games people can't put down and tools that make life easier.

Four years of shipping, end to end: the API, the iOS app, the web client and the AI underneath. Most recently I've been a core engineer behind Simmy and Wasabi, two AI games with a combined 15,000+ App Store ratings: I led the backend and built the web apps.

Choose your player

Senior web + iOS engineer. Four years of shipping, three consumer apps live.

  • Led the backend and built the web clients for Simmy (4.8★, #3 in Books on the US App Store) and Wasabi (4.7★ from 10,000+ ratings), and worked across the iOS apps.
  • Owns features end to end: TypeScript/Node APIs, native Swift iOS, React web, and the AI layer.
  • Shipped a full web port of an iOS game solo in 12 days.
  • Based in Los Angeles: open to hybrid in LA or remote. Looking at senior web, iOS and full-stack roles.
Resume (PDF)Get in touchSee the work
World 1 · Shipped

Games people play

Three consumer apps, each built with a small team and shipped to the App Store.

Simmy on the App Store: a story prompt turned into a generated scene

Simmy

Aug 2025 – now · iOS + web

AI interactive fiction. You describe a world, and Simmy turns it into an episodic, choice-driven story with generated chat, photos, video and narration.

  • 4.8★ 5K+ ratings
  • #3 Books, US App Store
  • Most of the TypeScript/Prisma API: game engine, stories, characters and the in-app economy.
  • The multi-provider LLM and generative-media pipelines, with timeouts, fallbacks and automatic refunds.
  • Simmy Web: a full React 19 port of the iOS game, built solo in 12 days with Stripe checkout and analytics parity.
  • App Store subscriptions, push and Live Activities, and a lot of the native Swift app.

TypeScript · Node · Prisma · Postgres · Redis · BullMQ · AWS · Swift · React 19 · Claude · Gemini · OpenAI · Grok

App Store ↗Play on web ↗
Wasabi on the App Store: a Cards Against You round with friends

Wasabi

Oct 2024 – Aug 2025 · iOS + web

A party game for your group chat, with an AI host that writes the prompts, judges the answers and runs the room out loud.

  • 4.7★ 10K+ ratings
  • Top 100 Board & Card
  • The real-time multiplayer engine: lobbies, PIN join, ready-up, voting and disconnect recovery.
  • Bot players with human-like timing, so a public room is never empty.
  • The AI game layer: personalized prompts and AI judging of text, photo and audio answers.
  • Monetization across iOS and web, and the browser client friends join with a PIN.

TypeScript · Socket.IO · Redis · BullMQ · Postgres · Swift · Next.js · Claude · ElevenLabs · LiveKit · Stripe

App Store ↗

TapTap Live

Feb – Oct 2024 · iOS

Live cash-prize trivia for college campuses, with scheduled games, 1v1 challenges and daily puzzles.

  • Live cash-prize games
  • 1v1 challenges
  • Daily puzzles
  • 1v1 challenges and instant matchmaking.
  • Daily puzzle games with Apple Music and LLM-generated questions.
  • Coins, XP, streaks and leaderboards across the API, the live-game server and the iOS app.
  • The friends graph behind the lobby, leaderboards and friend finder.

TypeScript · Socket.IO · Redis · BullMQ · Postgres · Swift

World 2 · Quality of life

Tools that make life easier

Not everything needs a leaderboard. Some of my favorite work just removes a chore.

EnspireMedia · sawmills

TimberTrack

Contracts, pricing tables, log and lumber tickets, inventory reconciliation and signed PDF reports for timber companies. I built most of the front end.

Saves: Paper tickets and spreadsheets → one live dashboard.
EnspireMedia · field service

MobileTrack Dispatch

Quotes, change orders, invoices and payments, with map-based scheduling. I designed and built its two-way QuickBooks Online sync.

Saves: No more double-entry between dispatch and the books.
Maestro · internal

AI cost recorder

Instrumentation at the single point every model call passes through, plus per-session cost breakdowns the whole team could read.

Saves: "What does this feature cost?" now has an answer.
Side project

Calmversation

A reflective AI chat app built for slower, more thoughtful conversations. Next.js, Supabase and the OpenAI API.

Saves: A quieter corner of the internet. Try it ↗
Character sheet

Stats & perks

Jake Servin

Jake Servin

Class: Full-stack builder
Level
4 years shipping
Base
Los Angeles · hybrid or remote
Party
Small teams, big scope
Perk · Solo queueCan carry a whole feature, schema to App Store.
Perk · Measure firstInstruments before optimizing.
Perk · Product senseBuilds for the player, not the spec.
WebReact, Next.js, Vite, Tailwind
4 yrs
iOSSwift, UIKit, StoreKit, Live Activities
2.5 yrs
BackendTypeScript, Node, Prisma, Postgres
2.7 yrs
Real-timeSocket.IO, Redis, BullMQ
2.5 yrs
AI & LLMsClaude, Gemini, OpenAI, Grok
2.3 yrs
PaymentsApp Store, RevenueCat, Stripe
2.3 yrs
InfraAWS, Docker, GitHub Actions
2.5 yrs
Quest log

How I got here

  1. Aug 2025

    Simmy

    AI interactive fiction for iOS and the web. Reached #3 in Books on the US App Store.

  2. Oct 2024

    Wasabi

    Real-time party games with an AI host. 4.7★ from 10,000+ ratings.

  3. Feb 2024

    Joined Maestro · TapTap Live

    Live trivia for college campuses. Started on the API and the game server, then moved into iOS.

  4. Oct 2022

    EnspireMedia

    Full-stack developer on five B2B products for sawmills and field-service companies.

  5. 2022

    Press start

    Learned full-stack development and went straight into my first engineering job.

Achievements

Unlocked so far

Top of the chartsSimmy: #3 in Books, US App Store
Crowd favorite15,000+ App Store ratings at 4.7–4.8★
Full lobbyReal-time multiplayer with bots, so no room sits empty
Test pilot1,700+ API tests and ~1,400 on the web port
Model wranglerFour AI providers in production, routed by cost and quality
White hatRuns security reviews and fixes what turns up
Hat trickThree consumer apps shipped in under three years
Next: your teamLocked. Unlocks when we talk.
Insert coin

Press start.

I'm looking at senior web, iOS and full-stack roles. If you're building something people play or rely on, let's talk.

jakeservin@gmail.com
Email meLinkedIn ↗GitHub ↗Resume (PDF)