Full-stack developer · Israel
I build games, apps and tools, then I keep them running.
➜ ~ etiel --boot
booting portfolio 100%
➜ ~ neofetch
etiel@portfolio
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role Full-Stack Developer
stack React · Node · Astro · CF Workers
focus real-time apps · scalable APIs
loc Israel
stat open to freelance
➜ ~ ls ./links
›github/ ›linkedin/ ›projects/ ›contact/
➜ ~
I'm a full stack developer from Israel with a passion for building web applications that people actually enjoy using. My journey started with curiosity about how websites work, and quickly grew into a deep love for the entire development stack - from crafting smooth user interfaces with React to designing robust backend systems with Node.js and databases.
I specialize in modern JavaScript/TypeScript development, and I'm particularly excited about edge computing with Cloudflare Workers. I've built everything from real-time multiplayer games using WebSockets and Durable Objects to an iOS alarm app and a scheduling tool for a personal trainer. I believe the best code is code that solves real problems elegantly.
By day I work as a software developer; evenings and weekends go to the products below, each one a chance to learn something new. I'm always looking for the next interesting challenge - whether that's optimizing a database query, designing a responsive UI, or figuring out how to deploy a real-time game on a global edge network.
End-to-end development from UI to database, APIs to deployment
WebSockets, multiplayer games, and live data with Durable Objects
Cloudflare Workers, Pages, D1 databases, and edge computing
Products I designed, built and still run in production. Each one has a write-up on the blog about how it works.
Guess the real price, every day.
A Hebrew daily game built on real Israeli supermarket prices. Everyone gets the same product, six guesses, and a hint after each one.
Chess where every piece is also a stock.
Captures move the market. Win by checkmate, or by the higher net worth when the closing bell rings.
The alarm you have to outsmart.
An iOS alarm clock you can only silence by solving a puzzle, so you are actually awake when it stops.
Scheduling for a personal trainer.
A Hebrew, phone-first app I build and run for a personal trainer: sessions, recurring weekly series, client packages, and one-way Google Calendar sync.
Engineering write-ups from the products I build and run - architecture, real bugs, postmortems, and the tradeoffs behind them.
Five real problems from building Wake Me Smarter, an alarm you silence by solving a puzzle.
How Google expiring refresh tokens after 7 days silently broke a calendar sync for a month, and the fix.
Seeded RNG, frozen engine versions, and puzzles with exactly one solution.
How I run PriceGuess with real-time WebSockets, a D1 database, and a daily scraper - all on Cloudflare's free tier.
My experience with AdSense rejection and the systematic SEO, content, and structured data improvements I made to fix it.
How I built an archive system that lets players replay past challenges, the three SQL bugs that broke everything, and the fix.
Everything here is used in production in at least one of the products above.