Nathaniel Olaleye / Work

What I build.

7+ years building production systems across fintech, edtech, and e-commerce. Solo and team. Mobile, web, backend, and hardware.

Own products

Live

Nannoy

nannoy.com ↗

AI-powered edtech platform for African learners. Personalised course generation, voice and text AI mentor (Nora), employer-verifiable certificates, and a direct hiring pipeline.

Next.jsGoSupabaseAWSClaude APIPaystack
  • /Grew from 0 to 250+ users in under 6 months
  • /Multi-tenant course generation with real-time AI interactions
  • /Free tier plus paid plans with full payment infrastructure
  • /Production cloud infrastructure supporting concurrent AI sessions
Upcoming

Junqo

junqo.cc ↗

Pocket hardware device that holds one physical SIM and shares it wirelessly across multiple devices via Bluetooth. One SIM, one plan, available everywhere.

HardwareBluetooth LEEmbedded
  • /Three form factors: Core, Snap, and Wallet
  • /No new SIM, no new plan, no monthly fees
  • /Research and pre-order stage

Experience

NannoyAug 2025 — PresentOn-site

Lead Facilitator & Product Engineer

  • /Full stack ownership from database schema to production: Next.js, Supabase, Go, Anthropic API
  • /Designed product strategy, monetisation model, and core feature roadmap from zero
Next.jsGoSupabaseAnthropic API
SLICQApr 2025 — Aug 2025Remote

Fullstack Flutter Developer

  • /Built a multi-merchant e-commerce platform end-to-end: Flutter apps (iOS and Android), admin web interface, and Firebase backend
  • /Implemented secure payment flows, merchant dashboards, order management, and real-time inventory tracking
FlutterTypeScriptFirebaseCloud Functions
NEXCBITSep 2024 — PresentRemote

Freelance Flutter Developer

  • /Cross-platform trading interface with advanced charting (candlestick, depth charts) and real-time order book via WebSocket
  • /Refactored state management (Bloc) reducing frame drops by 40%; achieved 99.9% uptime under high-frequency data loads
FlutterDartWebSocketBloc
VisaroJan 2024 — Oct 2024Remote

Lead Backend Developer

  • /Architected backend for a fintech Buy Now, Pay Later platform: credit decisioning, payment scheduling, merchant integration
  • /Implemented authentication, transaction processing, and compliance-ready data handling for financial operations
GoNode.jsPostgreSQLREST APIs
PoupeSep 2024 — Nov 2024Remote

Freelance Flutter Developer

  • /Decentralised wallet app for token management, transaction tracking, and Web3 asset portfolio visualisation
  • /Implemented secure trustless transaction signing and smart contract interactions with blockchain developers
FlutterDartWeb3Smart Contracts
DotsJul 2024 — Oct 2024Remote

Freelance Flutter Developer

  • /Multi-provider auth (Google, Apple, Facebook) increased onboarding conversions by 35%
  • /In-app purchase integration for premium features generated 20% uplift in recurring revenue
FlutterDartOAuthIn-App Purchases
PurpleBee TechnologiesAug 2023 — PresentOn-site

Flutter Developer

  • /Cross-platform learning platform serving 10,000+ students on iOS, Android, and web
  • /Offline-first caching and lazy-loading content delivery optimised for low-bandwidth environments
FlutterDartFirebase
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