I build products
people love to use.

Full-stack developer & product builder. I turn complex problems into clean, fast, and maintainable software.

See my work Get in touch

Selected work

Projects

ExpenseBuddy

Personal finance tracker with receipt OCR, multi-currency support, budget alerts, and a Flutter mobile app.

Django Flutter PostgreSQL Cloudflare R2
Visit

BreezoMeter → Google

Air quality and weather intelligence platform. Contributed to the product that was acquired by Google.

Flutter

DAZN

Global sports streaming platform. Senior iOS developer on the team that built and maintained the Watch Party feature — a real-time shared viewing experience for sports fans worldwide.

iOS Streaming Microservices Scale

ToraDB

Search anything and everything in the Bible and sacred scriptures — find any word, verse, or passage instantly. Currently available for Apple devices in Hebrew.

iOS Swift

FlagsGenius

The ultimate countries and flags quiz game. Three game modes, five difficulty levels each, plus a practice mode and four time-challenge levels. Free to play solo — Pro version with global multiplayer coming soon.

iOS Swift

Zemingo

Software development company specialising in advanced IoT solutions for clients ranging from small businesses to global corporations including Audi. Worked across multiple tech stacks, developing strong adaptability and rapid learning skills.

iOS Swift Obj-C C++ Python IoT

About us

Our Mission

Seagull-Dev was founded in 2016 by Erez Cohen with a focus on building high-quality web and native applications. The studio is built around a commitment to craftsmanship, clean architecture, and open-source principles.

About Erez

Erez has spent over two decades working across the full stack — from early-stage startups to large-scale industry platforms — and has lectured at academic institutions. His passion lies in exploring emerging technologies, with a particular love for Python, native iOS development and Flutter. Outside of work, you'll find him in the nature with his dogs, scuba diving, or paragliding.

Today, Erez is based in the Philippines, where he volunteers teaching computer science and programming to children, while building products designed to improve daily life for locals, digital nomads, and expats alike.

  • Teaching Children CS & Programming
    Philippines
    2026 — Today
  • Senior Flutter Developer
    Less Communication
    2025
  • Senior iOS Developer
    DAZN — Watch Party Team
    2021 — 2023
  • Senior Flutter Developer
    BreezoMeter (acq. by Google)
    2019 — 2021
  • Founder / Developer · Python · Flutter · iOS
    Seagull-Dev
    2016 — Today
    • ExpenseBuddy.xyz
    • Teaching children, adults & companies new technologies
    • HSAIsrael
    • FlagsGenius
    • ToraDB
  • iOS Developer
    Zemingo
    2016 — 2019
  • ASP.NET Developer
    Alljobs
    2013 — 2016
  • Python & iOS Developer
    Multiple experimental startups
    2010 — 2013
  • System Admin & ASP Developer
    Outsourcing — Financial & Health institutes
    1998 — 2010

Say hello

Get in touch

Have a project in mind, a question, or just want to connect? Drop me a message — I read everything and reply to everyone.

Or reach me directly at