— : — CAI · Available
01Software engineer · Cairo → global

Senior software engineer building
production systems in Flutter, Web3,
and applied AI.

Nine years shipping measurable work across five companies — mobile, protocol, and infrastructure. Open to senior IC and tech-lead roles, remote or Cairo-based.

50K+ users
Across shipped products
$2.5M+ volume
Processed on-chain
99.9% uptime
Production services
9yrs
Engineering · Cairo → global
02Selected Work · 2021 — present

Four projects that
earned their users.

Selected from a larger portfolio of commercial and contract work. Metrics below are cumulative to April 2026 and validated by client or on-chain data.

01
2024 — present
Route07

Islami Wallet

Lead Flutter & smart-contract engineer

A multi-chain mobile wallet with cross-chain swap, staking, and an in-app dApp browser. Shipped to iOS and Android with 50K+ installs and $2.5M+ in on-chain volume in the first year.

Flutter Solidity Rust Ethers WalletConnect
50K+ installs
$2.5M+ volume
6chains
Product shot — dual-device mockup, portfolio page ↳ replace with real asset
Case studyRead →
02
2023 — 2024
Metacces

Blockchain Gaming Platform

Senior engineer, mobile + on-chain

An ERC-721 play-to-earn gaming platform with in-game asset marketplace. Built Unity-Flutter bridge, off-chain matchmaking, and a gas-less transaction relay.

Flutter Unity Solidity Node Redis
120K+ items minted
12live games
99.9% relay uptime
Hero still — in-game marketplace, wide crop ↳ replace with real asset
Case studyRead →
03
2022 — 2023
ISLAMICOIN

Web3 dApp Browser

Founding engineer

A browser-first dApp environment with built-in wallet, token gating, and Shari’ah-compliance filtering for 400+ protocols.

TypeScript React Ethers Tailwind Supabase
400+ dApps indexed
28Kmonthly actives
7networks
Browser chrome mock — dApp tabs, tokenised view ↳ replace with real asset
Case studyRead →
04
2021 — 2022
Dawen

Cross-Chain Swap

Protocol & UI engineer

A cross-chain atomic swap protocol with a mobile-first UI. Handled liquidity routing across six networks with a median fill time under 9 seconds.

Flutter Solidity Cosmos SDK The Graph
9smedian fill
$480Kweekly volume
0failed settlements
Device still — swap flow, 3-step ↳ replace with real asset
Case studyRead →
03Experience · nine years, five companies

Shipped, measured,
and still running.

Each role ended with production ownership transferred cleanly — no cowboy exits. Metrics sourced from live dashboards or client attestation.

2024 — Now
Remote · Dubai
Route07

Senior Flutter & Web3 Engineer

Leading mobile + smart-contract work for Islami Wallet. Own the cross-chain swap pipeline, the staking module, and the iOS/Android release train.

FlutterSolidity RustNode
50K+ installs
First year
$2.5M+ volume
On-chain
2023 — 2024
Remote · Berlin
Metacces

Senior Engineer — Mobile & Protocol

Built the Flutter client, the Unity bridge, and the gas-less relay for a play-to-earn platform spanning 12 live games.

FlutterUnity Solidity
120K+ mints
NFT volume
99.9% uptime
Relay
2022 — 2023
Remote
ISLAMICOIN

Founding Engineer

First engineer on a Shari’ah-compliant Web3 browser. Shipped the dApp index, the wallet, and the compliance filter across seven networks.

TypeScriptReact Ethers
400+ dApps
Indexed
28KMAU
Peak
2021 — 2022
Cairo
Dawen

Protocol & UI Engineer

Cross-chain atomic swap protocol. Designed the liquidity router and the mobile swap UI. Zero failed settlements across the launch year.

FlutterCosmos SDK The Graph
9smedian
Fill time
$480K/week
Volume
2017 — 2021
Cairo
Visgo

Software Engineer

Shipped Flutter apps for healthcare, logistics, and fintech clients. Moved from junior to tech lead over four years.

FlutterDart Firebase
14apps
Shipped
3verticals
Coverage
04About

Cairo origin. Global work.
A practitioner, not a persona.

Portrait · b/w 3:4 · shot by a human “Cairo → global” — treat the origin as brand, not footnote.
AIn brief

I’m a software engineer in Cairo shipping Flutter, Web3, and AI systems that run in production. I’ve spent nine years learning what scales — and what to throw away.

I work best with small, senior teams where design and engineering are written by the same hands. Currently open to senior IC or tech-lead roles — remote, or Cairo-based with occasional travel.

Based
Cairo, EG
Timezone
GMT+2 / GMT+3
Languages
English · Arabic
Open to
Senior IC · Tech lead
BTools
Daily
  • Flutter
  • Dart
  • TypeScript
  • Solidity
  • Rust
Runtime
  • Node
  • Postgres
  • Redis
  • The Graph
Craft
  • Figma
  • Linear
  • iA Writer
  • Nova
05Get in touch · Currently open

Building something
worth shipping?

Email
joe@yossef.dev
LinkedIn
yossef-ebrahim
Phone
+20 10 0000 0000
Response time
Within 24 hours, weekdays.
Prefer
Email, with a one-paragraph brief.
Elsewhere
GitHub · Read.cv · Are.na