Engineering Philosophy

About Me & Technical Craft

Bridging scalable backend systems, responsive web dashboards, and polished cross-platform mobile apps with end-to-end architectural mastery.

Hello! I'm Olumide, a Full Stack Developer based in Lagos & Ibadan, Nigeria.

Over the past 4+ years, I have specialized in building applications that solve real-world problems—from high-volume fintech transaction platforms and live audio streaming networks to mission-critical web management systems.

I believe great software isn't just about writing code; it is about crafting resilient architectures that scale effortlessly. Whether that means optimizing Flutter widget trees for 120 FPS scrolling, structuring database indexes in PostgreSQL to shave milliseconds off API responses, or deploying containerized Node.js services with automated CI/CD pipelines, I bring uncompromising attention to detail.

I have published and maintained apps in the Apple App Store and Google Play Store, engineered enterprise portals servicing thousands of daily users, and partnered with cross-functional teams worldwide.

Education
Bachelor of Science (B.Sc.)
University of Ibadan
Availability
Full-time & Contract
Global Remote & Hybrid

What I Bring to Your Team

1
End-to-End Ownership
From initial schema design and API contracts to web UI and mobile app store submission.
2
Clean Architecture & Code Hygiene
Separation of concerns, strict typing, automated test suites, and maintainable structures.
3
Production Performance
Sub-second API latency, 60/120 FPS mobile interfaces, and zero memory leaks.
4
Fast Autonomous Delivery
Self-directed engineering with transparent communication and rapid iteration cycles.

Mobile App Engineering

Designing pixel-perfect, 60/120 FPS iOS and Android applications using Flutter & Dart with BLoC and Riverpod state management.

Modern Web Development

Building lightning-fast, accessible web applications and SaaS platforms with Next.js 14, React, TypeScript, and Tailwind CSS.

Robust Backend & APIs

Engineering high-throughput REST and WebSocket microservices in Node.js & Express with PostgreSQL, Redis, and idempotent billing pipelines.

DevOps & App Store Delivery

Automating releases with GitHub Actions and Fastlane, containerizing services with Docker, and publishing to Apple App Store & Google Play.

Work History

Professional Experience

Delivering high-impact engineering across fintech corporations, software studios, and global products.

Web & Mobile Developer

Eastwind Laboratories Ltd
2021 – 2023Ibadan, Nigeria

Developed responsive client-facing web applications and cross-platform mobile products for enterprise and startup clients.

Key Highlights & Impact:

  • Built performant web interfaces using React.js and modern JavaScript, improving page speed metrics and SEO scores by over 35%.
  • Engineered cross-platform mobile solutions in Flutter with offline-first SQLite synchronization and real-time state management.
  • Collaborated closely with product managers and UI designers to translate high-fidelity Figma mockups into reusable component libraries.
  • Designed and consumed secure RESTful APIs with JWT authentication, rate limiting, and automated input validation.
React.jsJavaScriptFlutterDartNode.jsSQLiteREST APIsTailwind CSSGit

Full Stack & Mobile App Developer

Billyronks Global Ltd
2023 – 2025Lagos, Nigeria (Hybrid)

Led the architecture and implementation of scalable financial platforms, high-volume bill payment systems, and customer-facing mobile applications.

Key Highlights & Impact:

  • Architected cross-platform Flutter applications servicing thousands of daily active users with 99.9% crash-free sessions.
  • Engineered backend microservices and payment orchestration endpoints with Node.js and Express, handling multi-provider billing seamlessly.
  • Built responsive administrative and customer web portals in Next.js and TypeScript, reducing transaction resolution times by 40%.
  • Configured automated CI/CD release pipelines via GitHub Actions and Fastlane for rapid App Store and Google Play store distribution.
FlutterDartNext.jsTypeScriptNode.jsExpressPostgreSQLRedisFirebaseDocker

Full Stack and DevOps Engineer

Present
Gemrails
2025 – 2026Remote

Architecting developer portal infrastructure, crypto payment rails with instant fiat settlement, SDK client libraries, and automated cloud CI/CD delivery pipelines.

Key Highlights & Impact:

  • Built the Gemrails developer portal featuring interactive code generation, live API sandbox simulation, and developer API key provisioning.
  • Engineered high-throughput payment webhook dispatch engines with cryptographic HMAC verification and automated retry queues.
  • Designed and managed Docker containerization, cloud infrastructure, and CI/CD deployment pipelines on Vercel with zero downtime.
  • Integrated Tatum blockchain deposit address generation for USDT & USDC with real-time exchange rate buffers and instant Naira payout rails.
Next.js 14TypeScriptNode.jsDockerCI/CDRedisPostgreSQLWebSocketsTatumTailwind CSS
Technical Capabilities

Skills & Technology Stack

The full-stack technologies, frameworks, and architecture patterns I employ daily to craft resilient digital solutions.

Frontend & Web

Modern, responsive, and accessible web user experiences

React.js92%
Hooks, Suspense, SPA architecture
Next.js 1490%
App Router, SSR, SSG, Server Actions
TypeScript90%
Strict typing, generics, robust interfaces
Tailwind CSS95%
Custom design systems, responsive UI
JavaScript (ES6+)95%
Asynchronous flows, event loops, DOM
HTML5 & CSS396%
Semantic markup, flexbox, CSS grid

Architectural Knowledge & Core Tools

Clean ArchitectureSOLID PrinciplesMicroservicesRedis CachingHive / SQLiteHealthKit / Google FitApp Store ConnectGoogle Play ConsoleJWT & OAuth2PostmanFigmaNginxVercelZustand
Featured Portfolio

Production Projects & Systems

Click on any project's hero frame or live link to experience the deployed web application directly.

Live Deployed Web Platforms
Click any link below to visit live client & SaaS deployments in production
GemRails PortalCrea8or OSOxygen OrbisMANARAH HubAPEX Trading
https://gemrails-developer-portal.vercel.app
GemRails Developer Portal
✨ Accept Crypto, Receive Instantly in Naira
WebAPI⚡ Instant Naira Settlements
fintech2024

GemRails Developer Portal

Developer portal and SDK documentation platform empowering merchants to accept USDT & USDC with automated instant settlement into Nigerian Naira.

Interactive SDK playground with executable live simulation for Node.js, Python, Go, and cURL
Automated Tatum-powered temporary deposit addresses for TRC-20 and BSC networks
Next.js 14TypeScriptTailwind CSSTurbopackTatum Crypto Rails+2
Visit Live Site
https://cre80r-web-iota.vercel.app
Crea8or — The Creative Business OS
✨ ƒ/1.8 · ISO 100 · Creative Business OS
WebAPI⚡ 8 Unified Modules in 1 Platform
fullstack2024

Crea8or — The Creative Business OS

An enterprise operating system uniting client CRM, 4K branded delivery galleries, frame-accurate video review (Frame.io alternative), Paystack invoicing, and digital call sheets.

Frame-accurate video review with timestamped client comments and revision approvals
Branded 4K client delivery galleries with high-speed watermarked downloads and favorites
Next.js 14TypeScriptTurbopackTailwind CSSPaystack+3
Visit Live Site
https://oxygen-orbis.vercel.app
Oxygen Orbis Hotel & Resort
✨ Premier Luxury Resort in Moniya, Ibadan
Web⚡ Instant WhatsApp Stay Passes
fullstack2024

Oxygen Orbis Hotel & Resort

A luxury hospitality web platform featuring room reservation workflows, instant WhatsApp stay passes, amenities showcase, and structured Schema.org SEO.

Comprehensive room booking catalog with real-time seasonal pricing and availability
Instant digital stay passes dispatched directly to guest WhatsApp accounts
ReactNext.jsFramer MotionTailwind CSSSchema.org JSON-LD+2
Visit Live Site
https://manarah.school1.name.ng
MANARAH — Learning & Competition Hub
✨ Learn · Teach · Compete — 500+ Tutors
Web⚡ 500+ Tutors & 10,000+ Students
fullstack2024

MANARAH — Learning & Competition Hub

A multi-sided education platform connecting students with certified Quranic tutors and hosting nationwide Islamic academic competitions with digital certifications.

Verified tutor marketplace filtering by specialty (Quran, Tajweed, Hifz, Islamic Studies)
Competition Hub with category registration, document verification, and leaderboard standings
Next.js 14TypeScriptTanStack QueryTailwind CSSPWA+2
Visit Live Site
https://apex-tradin-frontend.vercel.app
APEX Trading Square
✨ Invest Smart, Earn More — Guaranteed Returns
Web⚡ Multi-Tier Referral Engine
fintech2024

APEX Trading Square

A secure financial investment web application featuring structured investment tiers (APEX 1 & 2), automated return calculations, and a referral reward engine.

Tiered investment packages (APEX 1 & APEX 2) with automated maturity calculations
Multi-tier referral commission engine (5% instant bonus + 3% ongoing earnings)
Next.jsTypeScriptTailwind CSSInteractive ChartsGlassmorphism+2
Visit Live Site
https://apps.apple.com
SmatPay - Bill Payment Platform
iOSAndroidWeb⚡ 99.9% Transaction Success Rate
mobile2024

SmatPay - Bill Payment Platform

A secure, high-performance bill payment platform that simplifies airtime, data, utility, and subscription transactions across multiple providers with instant receipts.

Multi-provider bill payment aggregation (Electricity, Cable TV, Airtime, Data)
Instant digital wallet top-up via virtual accounts and debit cards
FlutterDartPayment GatewaysFinancial APIsBiometrics+1
Visit Live Site
https://apps.apple.com
Tok9ja - Audio & Podcast Streaming App
iOSAndroid⚡ 10K+ Monthly Streamers
mobile2024

Tok9ja - Audio & Podcast Streaming App

A cross-platform mobile audio streaming experience delivering 24/7 African radio streams, podcast discovery, offline caching, and interactive creator stations.

Background audio playback with native iOS lock screen and Android notification controls
Adaptive bitrate live streaming of popular African radio broadcasts
FlutterDartAudio ServiceFirebaseRiverpod+1
Visit Live Site
https://tok9ja.com
Tok9ja Plus - Creator Broadcasting Platform
iOSAndroidWeb⚡ <200ms WebRTC Voice Latency
fullstack2024

Tok9ja Plus - Creator Broadcasting Platform

A premium extension of the Tok9ja ecosystem featuring real-time audio rooms, backstage management, creator tipping, and audience engagement tools.

Low-latency WebRTC group voice rooms supporting 1,000+ concurrent listeners
Speaker invitation, hand-raising queue, and moderator mute controls
FlutterWebRTCNode.jsSocket.ioNext.js+1
Visit Live Site
https://apps.apple.com
Holla Vox - VoIP & Encrypted Messaging
iOSAndroid⚡ 99.5% Call Connection Rate
mobile2024

Holla Vox - VoIP & Encrypted Messaging

A communication mobile application engineered for low-bandwidth voice calls, end-to-end encrypted messaging, and voice notes over unstable cellular networks.

Hardware-accelerated Opus audio codec tuned for weak network connections
Full integration with native Apple CallKit and Android Telecom incoming call screens
FlutterWebSocketsOpus CodecSQLiteWebRTC+1
Visit Live Site
https://apps.apple.com
Social Bee - AI Refugee & Community Hub
iOSAndroidWeb⚡ Supported 5,000+ Newcomers
fullstack2024

Social Bee - AI Refugee & Community Hub

An inclusive mobile and web application that connects refugees with localized assistance, language translation, legal guidance, and community mutual aid.

AI assistant providing verified legal, shelter, and medical resource guidelines
Real-time geospatial aid center mapping with offline direction caching
FlutterNext.jsOpenAI APIFirebaseGoogle Maps+1
Visit Live Site
https://apps.apple.com
SNCF Connect - Transit Companion & NFC
iOSAndroid⚡ NFC Turnstile Latency <0.3s
mobile2023

SNCF Connect - Transit Companion & NFC

A comprehensive travel companion integrating train, bus, and car bookings with contactless NFC station access and Google Wallet ticket provisioning.

Contactless NFC ticket scanning for subway and high-speed train turnstiles
One-tap Google Wallet and Apple Wallet pass provisioning
FlutterNFC IntegrationGoogle Wallet APIReal-time GTFSBLoC
Visit Live Site
https://payment-gateway-orchestrator.app
Payment Orchestration API Gateway
API⚡ Sub-45ms routing latency
backend2024

Payment Orchestration API Gateway

A resilient backend gateway built with Node.js, Express, and Redis that routes digital payments across multiple providers with automated failover and webhooks.

Dynamic provider routing based on real-time health checks and conversion metrics
Idempotency-key enforcement via Redis preventing duplicate debit attempts
Node.jsExpressTypeScriptRedisPostgreSQL+2
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Get In Touch

Have a project in mind, need a full-stack engineer, or want to discuss an architecture challenge? Reach out directly.

Let's Build Something Great

Whether you need a Flutter cross-platform mobile app, a scalable Next.js web application, or a high-throughput backend API, I am ready to turn your product roadmap into reality.

Email Address
andreolumide@gmail.com
WhatsApp / Call
+234 903 398 7126
Chat →
Location
Lagos & Ibadan, Nigeria (Open to Global Remote)
Social & Code Profiles:

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