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    Hi, I'm

    O'BrienTaiwo

    Fullstack Developer

    I build fullstack products — NestJS and Go backends, React and Next.js frontends, and the occasional AI layer on top.

    My background and journey

    About Me

    O'Brien Taiwo
    Available for work

    I'm a fullstack developer with experience building web applications and blockchain solutions across web2 and web3. I specialize in both frontend and backend development, creating end-to-end solutions with modern technologies.

    My journey in tech spans traditional web development and decentralized applications. I've worked with various projects to create intuitive, performant, and accessible digital experiences, from conventional web apps to smart contract integrations.

    When I'm not coding, you can find me watching movies, series, and anime, or listening to music. My tech discoveries often happen when debugging— nothing drives you to explore new solutions quite like code that won't work 😂.

    Name
    O'Brien Adedapo Taiwo
    Email
    obrienadedapo15@gmail.com
    Location
    Nigeria
    Availability
    Open to opportunities
    Download CV

    Technologies I work with

    My Skills

    Frontend
    HTML/CSSJavaScriptTypeScriptReactNext.jsReduxTailwind CSS
    Backend
    NestJSGoGraphQLPostgreSQLMySQLSQLiteRedisRabbitMQ
    Mobile
    React NativeExpo
    Web3
    SolidityHardhat
    Tooling
    DockerGitMocha

    Some of my recent work

    Projects

    Featured

    Proposly

    Full-stack proposal management platform for freelancers. AI-powered proposal generation and inline editing with Claude, Stripe + Paystack subscriptions, Puppeteer PDF export with auto-generated T&Cs, and shareable client links.

    Next.jsNestJSTypeScriptClaude AIStripePaystackPostgreSQL
    CodeWrite-up

    Proctura

    Multitenant online coding exam platform for universities. Students write and submit real code instead of paper. Built with Go, row-level multitenancy, Judge0 for sandboxed code execution, and async grading queues.

    GoGinPostgreSQLGORMJudge0JWTDocker
    CodeWrite-up

    BriefMe

    Go API that summarizes any news article or URL using Gemini 2.5 Flash. Scrapes article HTML with goquery, returns structured JSON summaries, and supports multi-turn follow-up conversations with article context.

    GoGinGemini AIgoqueryNewsAPIDocker
    CodeWrite-up

    NFT Marketplace

    A decentralized NFT marketplace with multi-token support (ETH & USDC). Built with Next.js, Solidity, The Graph, and Web3 technologies for seamless buying, selling, and trading of NFTs.

    Next.jsSolidityThe GraphWeb3IPFS
    CodeWrite-up
    Live Demo

    Wallet Service API

    Production-ready backend wallet service with Paystack integration, JWT authentication, and API key management. Features deposits, transfers, and complete transaction audit trails.

    NestJSPostgreSQLTypeORMPaystackJWT
    CodeWrite-up

    Image Processing Service

    Async image processing service using Bull queues and Redis. Handles uploads, resizing, compression, and thumbnail generation with S3-compatible storage (Minio).

    NestJSBullRedisSharpMinioPostgreSQL
    Code

    Distributed Notification System

    Microservices architecture for handling notifications. Built with Node.js, NestJS, Python (FastAPI), and RabbitMQ for message queuing across services.

    Node.jsNestJSPythonFastAPIRabbitMQDocker
    Code

    BakeCraft

    Multitenancy SaaS platform for bakery management with team collaboration, email notifications, and subscription handling. Full-stack application exploring enterprise architecture patterns.

    Next.jsNestJSPostgreSQLTypeORM
    Code
    Live Demo

    Lottery dApp

    Decentralized lottery application built on Ethereum. Smart contracts for provably fair lottery system with frontend interface for participation and viewing results.

    Next.jsSolidityHardhatEthers.jsIPFS
    Code
    Live Demo

    More work

    Asido

    Pixel-perfect replica of Figma design with animations and micro-interactions. Demonstrates strong frontend skills with focus on design fidelity and user experience.

    Next.jsTypeScriptTailwind CSSFramer Motion
    Code
    Live Demo

    VendPal Dashboard

    Feature-rich dashboard with approval workflows, budget management, and analytics. Showcases component reusability and state management expertise.

    ReactTypeScriptReact RouterCSS Modules
    Code
    Live Demo

    FundlyNest

    Modern crowdfunding platform with campaign creation, category filtering, and donation tracking. Responsive UI with progress indicators and FAQ section.

    ReactTailwind CSSAxios
    Code
    Live Demo

    Aave V3 DeFi Integration

    Hardhat project demonstrating interaction with Aave V3 protocol. Includes lending, borrowing, and repayment functionality with mainnet forking for testing.

    HardhatSolidityEthers.jsTypeScriptAave V3
    Code

    Habit Tracker API

    RESTful API for habit tracking mobile app. Features user authentication, habit CRUD operations, and daily completion tracking with JWT security.

    NestJSPostgreSQLTypeORMJWT
    Code

    Holiday AI Agent

    Intelligent AI assistant providing holiday information for 230+ countries. Built with Mastra framework and integrated with Telex.im via A2A protocol.

    TypeScriptMastraGoogle GeminiCalendarific API
    Code

    Cartolinks

    Pixel-perfect UI implementation with dark/light mode toggle. Features smooth animations, responsive design, and themed navigation components.

    Next.jsTypeScriptTailwind CSSFramer Motion
    Code
    Live Demo

    My professional journey

    Work Experience

    Nov 2025 - Present

    Frontend Developer

    Atlantic Fenders & Support Service

    Contributing to development team building ERP solutions for maritime operations. Creating responsive, mobile-first user interfaces and collaborating on complex data management features for operational efficiency.

    Oct 2025 - Dec 2025

    Backend Developer

    HNG Internship

    Building scalable backend systems and RESTful APIs. Working with databases, authentication systems, and server-side logic while collaborating with frontend developers to deliver complete full-stack solutions.

    Sept 2024 - Jun 2025

    Frontend Developer

    Atlantic Fenders & Support Service

    Contributing to development team building ERP solutions for maritime operations. Creating responsive, mobile-first user interfaces and collaborating on complex data management features for operational efficiency.

    Sep 2024 - Feb 2025

    Frontend Developer

    Head of Department, Computer Science, FUNAAB

    Developed a comprehensive library administration platform from the ground up. Collaborated with backend developer and UI/UX designer to deliver modern, intuitive dashboard interfaces with responsive data visualization.

    Nov 2024 - Jan 2025

    Frontend Developer

    Exceleron Technologies Ltd

    Developed and maintained frontend web applications ensuring high-quality user experiences. Collaborated directly with CTO and development team to deliver projects on schedule while implementing best practices.

    Aug 2023 - Oct 2023

    Frontend Developer Intern

    HNG Internship

    Completed weekly frontend development projects with tight deadlines. Collaborated with cross-functional teams including backend developers and designers, gaining hands-on experience with modern web development workflows.

    Aug 2023 - Jan 2024

    SIWES Intern

    ICT Resource Centre, FUNAAB

    Supported ICT staff in daily technical operations and digital administration. Gained practical exposure to web technologies, programming fundamentals, and professional teamwork in an ICT setting.

    Thoughts on what I've been building

    Recent Writing

    GitHub Actions
    Expo

    eas-preflight: Catching Expo Bundle Size Regressions Before They Ship

    I built a free GitHub Action that diffs your Expo app's JS bundle size on every PR. Here's how it works, and three real bugs that only showed up once I stopped testing against my own machine.

    Jun 24, 20267 min read
    NestJS
    TypeScript

    Building Proposly: AI Proposals, Dual Payments, and PDF Generation

    How I built a full-stack proposal management platform for freelancers — Claude for AI generation and inline editing, Stripe + Paystack for subscriptions, and a Puppeteer-based PDF pipeline with auto-generated terms.

    May 20, 20269 min read
    Go
    AI

    Building an AI News Summarizer in Go with Gemini

    How I built BriefMe — a Go API that scrapes any URL, pulls articles from NewsAPI, summarizes them with Gemini 2.5 Flash, and supports follow-up questions with conversational context.

    May 10, 20267 min read
    View all posts

    Let's work together

    Get In Touch

    Email
    obrienadedapo15@gmail.com
    LinkedIn
    linkedin.com/in/obrien-taiwo
    GitHub
    github.com/CodeEnthusiast09
    Available for freelance and full-time work

    Send me a message