BuildwithAyoBuildwithAyo
HomeWorksAboutContact
© 2026 Faseesin Ayokunumi. All rights reserved.
BuildwithAyo
BuildwithAyo
    Faseesin Ayokunumi portrait

    Hello, I'm Faseesin Ayokunumi

    I'm a Senior Frontend Engineer with strong full-stack experience, based in Lagos, Nigeria. I build web and mobile applications, with most of my work centered around React, Next.js, React Native, and JavaScript/TypeScript.

    Frontend is where I'm strongest, but my work regularly goes beyond the UI. I build APIs, work with databases, design backend systems, make architecture decisions, handle deployments, and spend a lot of time thinking about performance and how different parts of a product work together.

    Background & Expertise

    I got into tech during the COVID lockdown in 2020, starting with content writing and SEO before getting into WordPress. That became my foundation and gave me my first real experience building and managing websites.

    As I worked on more WordPress projects, I started running into limitations with themes, plugins, and how much control I had over what I could build. I wanted more flexibility and the ability to build things exactly the way I wanted, so in 2021, I started learning frontend development and moved deeper into software engineering.

    Over time, that naturally expanded beyond the frontend. Building complete products meant I needed to understand APIs, databases, authentication, backend systems, infrastructure, deployments, and how everything connects.

    Over the past 5+ years, I've worked on projects across EdTech, eCommerce, Web3, non-profits, SaaS, and other business platforms. Some have been relatively straightforward websites, while others have involved mobile apps, APIs, authentication systems, real-time features, admin platforms, databases, infrastructure, and production deployments.

    These days, I'd describe myself as a frontend-leaning full-stack engineer. I care a lot about good interfaces, but I also want to understand what is happening behind them.

    I can't publicly show everything I've worked on, but you can see some of my work here, ranging from CMS and eCommerce projects to fully custom web and mobile applications.

    My Core Stack & Skills:

    • Frontend & Mobile: React, Next.js, TypeScript, React Native
    • Backend & APIs: Node.js, Hono, Express.js, REST APIs, ORMs, SQL/NoSQL databases
    • CMS & eCommerce: WordPress, custom themes, Shopify/Liquid, headless CMS
    • Infrastructure: Docker, VPS deployments, CI/CD, caching, storage, monitoring, and web performance

    How I Work

    A lot of my work starts before I write any code.

    I spend a good amount of time understanding the spec, asking questions, identifying edge cases, and figuring out what actually needs to be built. I also like explaining technical decisions clearly, especially when I'm working with founders or clients who aren't engineers.

    Once the direction is clear, I move into architecture and implementation.

    I use AI heavily in my development workflow, but I don't treat it as a replacement for engineering knowledge. For me, it's more like a very fast pair programmer. The quality of what it produces still depends on the context, constraints, architecture, and direction I give it.

    That's why context engineering has become a big part of how I work. I'd rather spend time giving an AI agent the right context upfront than burn time going back and forth fixing code that was built on the wrong assumptions.

    From there, it's implementation, testing, reviewing edge cases, and making sure what we built actually works properly in production.

    Outside of Work

    When I'm not coding, I'm probably indoors surfing the internet, watching one of my favorite YouTube shows, or playing the piano.

    I'm definitely a homebody, although I do go outside and touch grass once in a while.

    Let's Work Together

    I'm currently open to freelance projects and full-time opportunities, either remote or hybrid.

    That could mean joining an engineering team, building a product from scratch, improving an existing application, fixing performance or architecture problems, or helping take an MVP to the next stage.

    And if you're a non-technical founder who built an MVP with AI and it somehow works, but you're now worried about the architecture, security, scalability, or what exactly is happening under the hood, I can help with that too.

    Let's talk.

    Let's work togetherDownload résumé

    Frequently Asked Questions

    Quick answers to common questions about timelines, project updates, and post-launch support.

    What is your typical process for a new project?[+]
    First, I get clear on what you're actually trying to solve, not just the feature list, but the real problem behind it. From there I sketch out the data model and API structure before writing any UI, since getting that wrong early is what causes rewrites later. I build in stages you can see and click through, not a single big reveal at the end.
    Do you use AI tools in your development process?[+]
    Yes, daily, and I don't hide that. I use it to move faster on boilerplate, explore approaches, and catch things I might miss. What I don't do is ship what it gives me without reading every line, testing it, and treating it the way I'd treat a junior dev's pull request. The judgment is still mine.
    What happens if I need changes after the project is launched?[+]
    There's a short warranty window for bug fixes and small tweaks, no charge. Past that, if you need ongoing feature work, I work either hourly or on a monthly retainer, whichever matches how steady the work is.