01
MarketplaceLive
Hazi
A Nigerian declutter and auction marketplace where users can discover, list, bid on, and sell used household items.
Visit hazi.ng ↗HAZI
Available for freelance projects
I turn ambitious ideas into working digital products.
I’m Anthony Okosa, a Vibe Engineer and front-end developer who uses modern AI-assisted workflows to prototype, build, debug, and ship polished web and mobile experiences.
Role
Vibe Engineer
Core stack
Codex · Claude Code · Stitch
About me
Fast execution, thoughtful design, dependable delivery.
I specialise in transforming product concepts into production-ready applications. My work combines front-end engineering, responsive UI implementation, debugging, refactoring, and AI-assisted software development.
I’m comfortable moving from an early idea to a usable product—clarifying requirements, creating interfaces, connecting core functionality, fixing issues, and improving the final experience across devices.
What I work with
OpenAI CodexClaude CodeGoogle StitchFront-end DevelopmentResponsive DesignUI ImplementationDebuggingGitAgile Collaboration
Selected projects
Products I’ve built and shipped.
Each project solves a distinct real-world problem for users in Nigeria and beyond.
02
Food deliveryLive
ChowTrek
A low-cost food discovery and delivery concept built around nearby vendors and practical local fulfilment.
View project ↗CT
03
Faith & communityLive
CatApp
A Catholic Android product featuring faith resources, community tools, daily readings, and parish-focused discovery.
View project ↗✦
04
Healthcare commerceLive
Korex Pharmacy
An online pharmacy experience designed to help customers browse products and access pharmacy services more conveniently.
View project ↗+
05
Digital publishingLive
Nadbooks
A reading and publishing platform where readers discover original African stories and independent writers share their work.
View project ↗NB
06
Language learningLive
GramApp
An English grammar learning experience that uses guided discovery, speaking practice, and focused feedback for A2–B2 learners.
View project ↗G
07
Creator educationLive
Mahadum
A practical learning marketplace connecting ambitious African learners with experienced creators and career-building courses.
View project ↗M
08
Technology educationLive
Arcane Academy
Beginner-friendly live classes that help learners ages 10 and above build and ship websites and Android apps with AI.
View project ↗AA
Experience
Building products with speed and precision.
2026 — Present
Freelance Vibe Engineer
Build production-ready applications using AI-assisted workflows, rapidly prototype product ideas, implement features, debug issues, refactor code, and collaborate to turn concepts into working software.
2022 — 2025
Front-end Developer · NadBooks
Developed responsive web applications, reusable UI components, and interactive interfaces while improving performance, accessibility, maintainability, and cross-browser compatibility.
2019 — 2024
B.Sc. Information Technology
National Open University of Nigeria.
Let’s work together
Have a product idea that needs to become real?
Tell me what you want to build, improve, or launch. I’m available for websites, web apps, Android product work, UI implementation, and AI-assisted development.