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Software · New Jersey

ZanderLeon

Nineteen things I built. One of them is running inside UTR Global today.

See the workWho I am
  • In production at UTR Global
  • Congressional App Challenge winner, NJ-07
  • Nineteen projects, nothing mocked up

The work

Nineteen things I have built.

Five of them have their own page. The screens are captures of the thing running, never mockups, and where a client will not let me show it the card says so.

Say hello

Up close

Five with a page of their own: how each one works, and what is on every screen.

  • in production

    Atlas Desk

    client work

    UTR Global reports it has saved a client over $12,000 a year.

    An AI workspace for telecom-expense operations, built for UTR Global during my internship there. Drop in a bill or a spreadsheet and work in plain English: ask, audit, reconcile lines, check rates, compare months, fix files. It has taken hours a week off reading spreadsheets and writing them up.

    See it up close

    The screens here show a run against a synthetic test workbook: 1,378 rows in, 129 findings out, $9,670.68 a year of them. No client data appears on this site.

  • The ChronoIQ dashboard: a week of scheduled study blocks around real calendar events
    launching on iOS

    ChronoIQ

    Won its district in the Congressional App Challenge.

    A study scheduler. It syncs Google Calendar and Classroom, estimates how long homework will take, and books study blocks into the free time that is left.

    See it up close

    Congressional App Challenge winner, NJ-07, 2025 · built with Maxwell Brohm · App Store submission is close

  • The Neuromaker app flagging a beta spike on both frontal sensors, with the flagged window highlighted on the trace
    open source

    Neuromaker

    A headset instead of clinical equipment.

    A brain–computer interface built with my school’s biotech academy: it reads brainwaves through a headset and flags the unusually high or low activity.

    See it up close

  • The Solaspace living goal map: connected goal nodes on a dark canvas
    live

    Solaspace

    The AI can be down and it still plans.

    Type any goal in plain words and it maps every step, finds the resources, and builds a plan for the time you have today.

    See it up close

  • The Comics for Comfort homepage: “Comics that deserve a second reader” beside a fan of real comic covers
    live

    Comics for Comfort

    client work

    Built to look like the comics it moves, newsprint dots and all.

    A site for a New Jersey nonprofit that collects donated comics, screens every issue for the right age group, and delivers them to hospitals, libraries and troops overseas.

    See it up close

More client work

Also paid for, also delivered.

  • The EZTennis landing page: “Play the right tournaments”
    in progress

    EZTennis

    client work

    Four rating systems, one monthly schedule.

    A tournament scheduler being built for its founder: it assembles a personal month of USTA, UTR, ITF and WTN events around a player’s rating, location and calendar.

    Being built now, for its founder

  • SCHEMATIC

    COMPOSITE SCORE

    • SOVEREIGNI
    • MERIDIANII
    • TITANIUMII
    • OBSIDIANIII
    • COBALTIII
    • STEELIV
    delivered

    Market terminal

    client work

    Turns a material event into a concrete call.

    A Bloomberg-style market tracker sold to a private financial group. An analyst that breaks a ticker down on demand, and live alerts on the things that move it.

    Client and screens withheld at the client’s request

Out in the open

Live, or the code is public. All of these link out.

  • The Everdeck landing page: “The audit that sells the redesign”
    private preview

    Everdeck

    Scans a whole market in the background, after you close the tab.

    Name a trade and a city, and it scores the website every business in it has now, then turns each audit into something a web studio can pitch with.

  • Bandr on a phone: ranked money moves with their scores shown openly
    open source

    Bandr

    Every score is a rule you can read.

    Helps teens find safe, realistic ways to make money, and builds the exact launch plan for each one.

  • Verbalist analysing a spoken passage, filler words highlighted in the live transcript beside a speech score
    open source

    Verbalist

    Flags a filler word the moment you say it.

    An interactive speech coach that marks filler words and jargon in a live transcript as you speak.

Being built right now

Some are weeks from finished, some are longer.

  • The Empire terminal: a ranked ladder of wallets beside a live chart
    in development

    Empire

    It is built so it cannot touch your money.

    A terminal and ranked ladder for crypto traders that scores whether a wallet’s big green numbers are skill or luck, and lets you trade the ladder on paper.

    Paper trading only. Linking a wallet is a signature proving you own it, nothing more.

  • Ya Sabo: a listening exercise with the slang phrase highlighted in the transcript
    in development

    Ya Sabo

    For the Spanish your family actually speaks.

    A judgment-free Spanish app for “no sabo” heritage speakers: at the speed people talk, with the slang they use, and a comprehension ladder.

    Phrases checked with native speakers. The voices in this build are placeholders until the real recordings are licensed.

  • A Part 107 question answered, with the explanation citing 14 CFR 107.79 and a chip reading VERIFIED 2026-08-24
    in development

    Cert Prep Engine

    Every one of 450 questions was re-checked against the regulation itself.

    Three study apps for tests you have to pass: the FAA drone exam, a state driver’s permit, a food-handler certificate.

    One engine, three brands

  • StoryHero’s Read-to-Unlock: the next sentence is locked in gold with a microphone button beneath it, so the page only turns when the child reads it aloud
    in development

    StoryHero

    To turn the page, the child has to read the line out loud.

    Upload one photo and a child becomes the illustrated hero of every story. It looks like a storybook and works like reading practice, and the speech recognition runs on the phone, so nothing the child says leaves it.

    iOS · on-device speech recognition

  • Zanshin’s reading: a drift score of 84, with the arithmetic underneath — 46 days a year awake inside the feed, about 2,520 clips a week, 1,095 hours a year
    in development

    Zanshin

    It counts the scrolling you swore you were not doing.

    An iPhone app that measures how much you scroll, then holds you to a daily limit by locking the apps you named. The streak stays on screen.

    The screens here came off a running build in the simulator.

  • The Genesis Engine: an ocean world with 534 organisms across three evolved lineages, and an evolution timeline beneath it
    in development

    Genesis Engine

    The AI only speaks at the seven era changes.

    Describe a planet in a sentence and watch alien life evolve in the browser. Lineages branch, collapse, recover and eventually build civilisations.

    Its old deploy is down; this is the build running locally.

Competitions and personal tools

A NASA challenge, a desktop tool I use myself, and the games I learned on.

  • Velocity over time from the team’s mission data, plotted on three axes
    NASA challenge

    Team Helios

    A 3D flight built from real mission data.

    My team’s entry to the NASA App Development Challenge: a 3D mission visualisation in Python, plus the team’s STEM outreach.

  • The Z-OS desktop: pixel-art planets in space, a dock of business apps, and the imp floating
    my own tool

    Z-OS

    A pixel-art imp does the work, and you can fling him around in zero-g.

    My own business runs inside a desktop-in-a-browser: jobs are dispatched to agents, each one bound to an imp, and parallel work spawns hue-shifted clones of him.

    Built for myself, not for sale

  • FLAT-EARTHRZ: two alien species on floating flat worlds in the void, with the story and both players’ controls
    archive

    Games, before all this

    I drew every sprite and wrote every line of code.

    A tower defence built around named cyber threats, a two-player survival game on floating islands, a Lemmings-style puzzler, and a volleyball game with proper ball physics.

Before the rest of it

I drew every sprite and wrote every line of code.

Five games, made before I had any idea what I was doing. A tower defence where the enemies are named cyber threats, a two-player survival game on floating islands, a Lemmings-style puzzler, a volleyball game with proper ball physics, and one about impressing a king.

The Legend of TharThar II

Java and Processing · tower defence about real cyber threats

  • TharThar, the player character, idlingTharThar
  • The tank virus enemyTank virus
  • The trojan virus enemyTrojan virus
  • The worm virus enemyWorm virus
  • The speed virus enemySpeed virus
  • The shield pickupShield
  • A code fragment pickup, spinningCode fragment
  • An orb, pulsingOrb

Volleyball 1

Java and Processing · arcade volleyball against an AI, with real ball physics

  • A volleyball player spiking, ten frames at 42 pixels squareSpike
  • A volleyball player jumping to block, fifteen framesBlock
  • A volleyball player setting mid-jump, ten framesJump set
  • A volleyball player setting from the ground, eighteen framesStanding set
  • A volleyball player bumping, seven framesBump
  • A volleyball player running, seventeen framesRun
  • The volleyball, spinningThe ball

Please Impress The King

Unity, C# and Aseprite · turn-based comedy RPG for SkillsUSA

  • The king, facing frontThe King
  • The king in his boss form, mid-abilityKing Boss
  • The wizard with his staffWizard
  • A goose in a horned helmetGoose

FLAT-EARTHRZ

JavaScript and Canvas · two-player survival on floating islands

  • The blue alien with a pickaxeBlue alien
  • The red alien with an axeRed alien

Pipkin Parade

JavaScript and Canvas · a Lemmings-style puzzler

  • A pipkin, walkingPipkin, walking
  • A pipkin, standing stillPipkin

And the one who walks around them

the player sprite from the gallery I built to show all five

  • A pixel-art sprite of Zander, used as the player characterMe

Still running on their own loops, at the size the engine drew them.

Zander LeonNew Jersey

Who I am

Who you'd be working with.

I'm Zander Leon, a self-taught developer in New Jersey. I build AI tools and internal software for small and mid-sized businesses, and I handle the whole job myself, from the first conversation to the last fix.

Software I built runs in production at UTR Global, a telecom-expense firm where I intern. I've also delivered an AI market terminal to a private financial group, put a nonprofit's website live on its own domain, and I'm building a tournament-scheduling app for a tennis founder right now.

ChronoIQ, a study scheduler I built with Maxwell Brohm, won the 2025 Congressional App Challenge for New Jersey’s 7th district and was shown at the U.S. Capitol.

  • NJ-07

    won the 2025 Congressional App Challenge for the district, with ChronoIQ

    the award page

  • D.C.

    shown at the U.S. Capitol, House of Code

  • prod

    Atlas Desk runs inside UTR Global, where I intern

  • solo

    self-taught, and I finish every job myself

  • Next.js
  • React
  • TypeScript
  • Tailwind
  • Swift
  • SwiftUI
  • React Native
  • Expo
  • Three.js
  • Electron
  • Node
  • Postgres
  • Supabase
  • Cloudflare D1
  • Drizzle
  • Clerk
  • Stripe
  • Claude
  • Gemini
  • Playwright
  • Vercel
  • Python
  • Unity
  • Structured output
  • Document parsing
  • Spreadsheet parsing
  • Speech recognition
  • Deterministic fallbacks
  • PWA

What I build with.

All of these are in something shipped on this page. Learning one that isn’t on the list is part of the fun.

Contact

Tell me what you are working on.

Questions about any of this, something you want built, or just hello. I read everything myself.

No newsletter, no follow-up sequence.

One screen from each project above

  • Atlas Desk after auditing a 1,378-row telecom invoice: the findings summary beside the workbook itself
  • The ChronoIQ dashboard: a week of scheduled study blocks around real calendar events
  • The Comics for Comfort homepage: “Comics that deserve a second reader” beside a fan of real comic covers
  • The Everdeck landing page: “The audit that sells the redesign”
  • The EZTennis landing page: “Play the right tournaments”
  • The Solaspace living goal map: connected goal nodes on a dark canvas
  • Ya Sabo: a listening exercise with the slang phrase highlighted in the transcript
  • Bandr on a phone: ranked money moves with their scores shown openly
  • Verbalist analysing a spoken passage, filler words highlighted in the live transcript beside a speech score
  • The Neuromaker app flagging a beta spike on both frontal sensors, with the flagged window highlighted on the trace
  • Velocity over time from the team’s mission data, plotted on three axes
  • The Empire terminal: a ranked ladder of wallets beside a live chart
  • A Part 107 question answered, with the explanation citing 14 CFR 107.79 and a chip reading VERIFIED 2026-08-24
  • StoryHero’s Read-to-Unlock: the next sentence is locked in gold with a microphone button beneath it, so the page only turns when the child reads it aloud
  • Zanshin’s reading: a drift score of 84, with the arithmetic underneath — 46 days a year awake inside the feed, about 2,520 clips a week, 1,095 hours a year
  • The Genesis Engine: an ocean world with 534 organisms across three evolved lineages, and an evolution timeline beneath it
  • The Z-OS desktop: pixel-art planets in space, a dock of business apps, and the imp floating
  • FLAT-EARTHRZ: two alien species on floating flat worlds in the void, with the story and both players’ controls
  • Atlas Desk after auditing a 1,378-row telecom invoice: the findings summary beside the workbook itself
  • The ChronoIQ dashboard: a week of scheduled study blocks around real calendar events
  • The Comics for Comfort homepage: “Comics that deserve a second reader” beside a fan of real comic covers
  • The Everdeck landing page: “The audit that sells the redesign”
  • The EZTennis landing page: “Play the right tournaments”
  • The Solaspace living goal map: connected goal nodes on a dark canvas
  • Ya Sabo: a listening exercise with the slang phrase highlighted in the transcript
  • Bandr on a phone: ranked money moves with their scores shown openly
  • Verbalist analysing a spoken passage, filler words highlighted in the live transcript beside a speech score
  • The Neuromaker app flagging a beta spike on both frontal sensors, with the flagged window highlighted on the trace
  • Velocity over time from the team’s mission data, plotted on three axes
  • The Empire terminal: a ranked ladder of wallets beside a live chart
  • A Part 107 question answered, with the explanation citing 14 CFR 107.79 and a chip reading VERIFIED 2026-08-24
  • StoryHero’s Read-to-Unlock: the next sentence is locked in gold with a microphone button beneath it, so the page only turns when the child reads it aloud
  • Zanshin’s reading: a drift score of 84, with the arithmetic underneath — 46 days a year awake inside the feed, about 2,520 clips a week, 1,095 hours a year
  • The Genesis Engine: an ocean world with 534 organisms across three evolved lineages, and an evolution timeline beneath it
  • The Z-OS desktop: pixel-art planets in space, a dock of business apps, and the imp floating
  • FLAT-EARTHRZ: two alien species on floating flat worlds in the void, with the story and both players’ controls