Fullstack engineer
for mobile, web
& onchain.
I'm Opia Frank, a mobile-first software engineer. Flutter & Dart on the front, Rust, Java & Swift on the back, Solana & Ethereum on-chain. Several apps live on the App Store & Play Store.
01 / About
A little about me
I'm Frank, an Applied Mathematics graduate from the University of Lagos who fell in love with shipping software. My focus is mobile, but I'm equally at home on the web and writing systems-level backends.
I've worked across AI-driven apps, fintech, Web3 / blockchain, and healthcare platforms, from real-time chat over WebSockets to Solana on-chain programs and Spring Boot wallet backends.
Currently a Blockchain Researcher at EntryPoint Labs, exploring Web3 protocols and AI. Before that I shipped mobile apps for FriendnPal (Africa's first AI mental health app), Feedr, and Méno Bible App.
02 / Skills
Tech I work with
Languages
- Dart
- Rust
- Java
- TypeScript
- JavaScript
- Swift
- Solidity
- C++
Frontend
- Flutter
- React
- Next.js
- Tailwind CSS
Backend
- Actix-Web (Rust)
- Spring Boot (Java)
- Vapor (Swift)
- REST
- WebSockets
Blockchain
- Ethereum
- BSC
- Solana
- Base
- Web3j
Databases
- PostgreSQL
- MySQL
- MongoDB
- Firebase
- Appwrite
- Supabase
Cloud & Observability
- AWS
- Grafana / Loki
- Prometheus
- Datadog
- Sentry
- AppSignal
Flutter
Dart
Rust
Solana
Ethereum
React
TypeScript
Next.js
Tailwind
Spring
Swift
OpenAI
PostgreSQL
Firebase
Supabase
Solidity
VercelFlutterDartRustSolanaEthereumReactTypeScriptNext.jsTailwindSpringSwiftOpenAIPostgreSQLFirebaseSupabaseSolidityVercel03 / Selected Work
Things I've built
On-chain products, fintech, and cross-platform apps, a mix of client work and experiments.
Live football predictions with a self-custodial USD₮ wallet. Call live ties, run knockout cups, and manage a fantasy XI. Buy-ins go to escrow, payouts settle on-chain.
Confidential aid disbursement on Stellar. Beneficiaries prove they qualify and claim USDC without exposing their identity. Groth16 zero-knowledge proofs, verified on-chain.
A Solana wallet to deposit, swap, stake, and send SOL and SPL tokens with live balances over Solana RPC.
A crypto exchange app with a live market watchlist, spot prices, and a trading UI modeled after Binance.
Live on the stores
Apps live on the Play Store
04 / Contact
Let's build something.
I'm open to freelance, full-time roles, and interesting collaborations, especially in mobile, Web3, and AI.
Frankolien123@gmail.com