Jake Servin
Lvl 4 · Web + iOS

Senior web & iOS engineer · Los Angeles

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

Four years of shipping end to end: API, iOS, web, and now the AI underneath. Core engineer behind Simmy and Wasabi, two AI games with a combined 15,000+ App Store ratings.

Choose your player

Senior web + iOS engineer. Four years of shipping consumer apps end to end.

  • Core engineer behind Simmy and Wasabi, two AI games with 15,000+ App Store ratings between them.
  • Own features end to end: TypeScript/Node APIs, native Swift iOS, React web, and the AI layer.
  • Ported an iOS game to the web end to end, with payments and analytics.
  • Based in Los Angeles. Works hybrid in LA or remote.
Resume (PDF)Get in touchSee the work
World 1 · Shipped

Games people play

Consumer apps 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
  • Start from a sentence and the first episode arrives in seconds.
  • Characters remember what happened and how they feel about you, episode to episode.
  • Generation that fails refunds its gems automatically.
  • A native iOS app with subscriptions and Live Activities, plus a web version with Stripe checkout.

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

App Store ↗
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
  • Start a room, share the PIN, and friends join from the app or a browser.
  • The AI host writes prompts around the people in the room and judges text, photo and audio answers out loud.
  • Public rooms stay full with bot players, and anyone who drops can rejoin mid-round.
  • Free to play, with purchases on iOS and Stripe on the web.

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
  • Scheduled live trivia with real cash prizes, played against the whole campus at once.
  • 1v1 challenges with instant matchmaking, and daily puzzles with Apple Music and AI-written questions.
  • Coins, XP, streaks and leaderboards, with a friends list, lobby 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, in one dashboard.

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

MobileTrack Dispatch

Quotes, change orders, invoices and payments for field-service crews, with map-based scheduling and a two-way QuickBooks Online sync.

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

AI cost recorder

Records every model call at the one place they all pass through, and turns it into per-feature and per-session cost breakdowns the whole team can 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 chat app that doesn't rush you. 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
3 yrs
BackendTypeScript, Node, Prisma, Postgres
4 yrs
Real-timeSocket.IO, Redis, BullMQ
4 yrs
AI & LLMsClaude, Gemini, OpenAI, Grok
2 yrs
PaymentsApp Store, RevenueCat, Stripe
3 yrs
InfraAWS, Docker, GitHub Actions
2 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. Worked across the API, the game server and the iOS app from day one.

  4. Oct 2022

    EnspireMedia

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

  5. 2022

    Press start

    Taught myself full-stack development and landed my first engineering job the same year.

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 pilot3,000+ automated tests across the API and web
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 since 2024
Next levelLoading…
Insert coin

Press start.

If you're building something people play or rely on, I'd like to hear about it.

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