DEVELOPER

Open to work · Lagos, Nigeria · Remote friendly

Zainab Owoilu

Full-Stack Developer

I build complete digital products from the ground up. Backend APIs, web dashboards, mobile apps. I've shipped all three on the same project. Open to Backend, Frontend, Full-Stack and API roles.

⚙️

Backend C# · .NET 8 · ASP.NET Core · REST APIs

🌐

Frontend Next.js · TypeScript · React · JavaScript

📱

Mobile React Native · Expo

🗄️

Database PostgreSQL · SQL Server · Entity Framework

View My Work Get In Touch ↓ Download CV

60+API Endpoints

3Platforms Shipped

2+Years Experience

3Live Projects

Zainab Owoilu

Full-Stack Developer

Backend

Frontend

Full-Stack

API

Mobile

Backend

C#.NET 8ASP.NET CoreREST APIs

Frontend

Next.jsTypeScriptReactJavaScript

Database and Tools

PostgreSQLEntity FrameworkGit

Open to all roles · Remote friendly

GitHub ↗ Email ↗

ASP.NET Core

REST APIs

Entity Framework

PostgreSQL

01 ⚡ About

A developer who builds with purpose

I'm a Full-Stack Developer and Computer Science graduate from Lagos State University. My backend work is in C# with .NET 8 and ASP.NET Core, and on the frontend I work with Next.js, TypeScript and React Native.

My biggest project so far is Vendify an e-commerce platform I built across three separate codebases: a REST API, a Next.js web dashboard and a React Native mobile app. It handles real payments through Paystack, Flutterwave and Stripe, and is deployed live. I've also built a Student Progress Tracking System with role-based access and an AI-Powered PDF Editor.

I'm looking for developer roles locally in Nigeria and internationally. I pick things up quickly, write clean code and take projects all the way from idea to production.

🎓

B.Sc. Computer Science Lagos State University · 2014 to 2021

Languages

Location

Lagos, Nigeria 🇳🇬
Open to remote or relocation

Interests

Software Dev Content Creation Problem Solving Volunteering

02 ⚡ What I Can Do

Built to deliver

🏗️

Build Full-Stack Web Applications

End to end development using ASP.NET Core on the backend and Next.js or vanilla HTML, CSS and JavaScript on the frontend. I handle everything from database design to browser rendering.

Student Progress Tracking System

🗄️

Design and Manage Databases

I design relational schemas, write efficient queries and manage data with PostgreSQL, SQL Server and SQLite using Entity Framework Core. I've designed databases that handle real production traffic.

Vendify multi-table relational schema

⚡

Develop REST APIs

Clean, well-structured APIs with proper versioning, Swagger documentation and third-party integrations. I've built and integrated payment gateways, cloud storage and messaging platforms into production APIs.

Vendify API, 60+ endpoints live on Render

🔐

Implement Authentication and Security

JWT authentication with refresh tokens, ASP.NET Identity, role-based access control and protected routes. Security is built in from the start, not added later.

Admin, Merchant and Customer role system

☁️

Deploy to Cloud Platforms

From local development to live production. I've set up Docker containers, CI/CD pipelines and environment configuration, and deployed to Render and Vercel. My projects are live, not just demos.

Vendify API on Render via Docker with auto CI/CD

📱

Build Cross-Platform Mobile Apps

iOS and Android apps from a single codebase using React Native and Expo. Push notifications, camera access, offline storage and production builds with EAS.

Vendify Mobile App with push notifications

03 ⚡ Skills

Built to work on any layer

⚙️

Backend Development

Available for Backend roles

Production-grade server-side applications with clean architecture, secure authentication and efficient data handling. Primary language is C# with the .NET 8 ecosystem.

C#.NET 8 ASP.NET Core MVCASP.NET Identity Clean ArchitectureJWT Authentication Refresh TokensRole-Based Access WebhooksMiddleware

📦 Vendify API, 60+ endpoints, 3 payment gateways, deployed on Render

⚡

API Development

Available for API and Backend roles

RESTful APIs that are clean, documented and production-ready. I've integrated real third-party services including payment processors, cloud storage and messaging platforms.

REST APIsSwagger / OpenAPI PaystackFlutterwave StripeCloudinary WhatsApp Cloud APIWebhook Integration API VersioningPostman

💳 Built and integrated 3 live payment systems into a single API

🌐

Frontend Development

Available for Frontend roles

Responsive, interactive web interfaces that connect cleanly to backend APIs. Comfortable across the full frontend stack from structure to state management to deployment.

Next.js 14TypeScript ReactJavaScript Tailwind CSS v4HTML5 CSS3Axios RechartsPWA App RouterDark Mode

🌐 Vendify Web Dashboard, 25+ pages deployed live on Vercel

📱

Mobile Development

Available for Mobile and Full-Stack roles

Cross-platform mobile apps that run on iOS and Android from a single codebase, with real-world features like push notifications, camera access and offline storage.

React NativeExpo SDK 50 TypeScriptAsyncStorage Push Notificationsexpo-image-picker Victory NativeEAS Build

📱 Vendify Mobile, iOS and Android app with push notifications

🗄️

Database and Infrastructure

Available for Backend and Full-Stack roles

Relational database design, query writing and deployment management. I've worked with cloud-hosted databases and container-based deployments using Docker and CI/CD pipelines.

PostgreSQLEntity Framework Core SQL ServerSQLite SupabaseDocker RenderVercel GitHub CI/CD

☁️ Vendify API, Dockerised with auto CI/CD pipeline on Render

🔧

Tools and Workflow

Used across all roles

Day-to-day tools across the full development lifecycle, from writing code to shipping to production.

Git and GitHub VS CodePostman Swagger UIWordPress BootstrapPHP Adobe Premiere ProCanva Microsoft Office

💻 Used across Vendify API, Frontend and Mobile codebases

04 ⚡ Experience

Where I've worked

2024 to Present

RMSys Solutions Current

Software and Web Developer (Intern to Freelance)

Built and maintained web applications using ASP.NET MVC, C# and SQL
Designed responsive websites with HTML, CSS, JavaScript and WordPress
Mentored student developers and tracked team progress
Contributed to documentation, testing and project revisions

2021 to Present

Christ the Rebuilders Ministry Current

Head of Media, Engineering and Technical

Lead and supervise the full media and technical team covering audio, video and livestreaming
Train volunteers in sound engineering, video editing and digital tools
Drive creative direction for all digital content and online presence

2022 to 2023

Bozer Gas Petroleum Ltd

Manager and Social Media Handler

Managed all social media accounts and developed content campaigns
Handled records, transactions and customer communications

2021 to 2022

Kings Agenda International College (NYSC)

Computer Science Teacher

Developed lesson plans and delivered classroom instruction
Tracked student progress and coordinated with school administration

2020 to 2025

Monitor Healthcare Ltd

Data Entry Volunteer

Recorded over 7,000 screening forms for research analysis
Screened and dewormed more than 1,000 school children
Participated in medical outreach across 15 communities reaching 5,000 beneficiaries

05 ⚡ Projects

Things I've built

1 / 5

Featured Project

Vendify, E-Commerce Platform

A complete e-commerce platform built for Nigerian merchants. I built the backend API, web dashboard and mobile app as three separate codebases that all talk to each other. Merchants can set up a store, list products, accept payments from Nigerian and international customers, and manage everything from their phone.

🔧 Backend API C# · .NET 8 · PostgreSQL · EF Core · JWT

🌐 Web Dashboard Next.js 14 · TypeScript · Tailwind v4

📱 Mobile App React Native · Expo · Victory Native

PaystackFlutterwaveStripe CloudinaryDockerRenderVercel

✓ Role-based auth; Admin, Merchant and Customer

✓ 60+ REST API endpoints

✓ 25+ dashboard pages and mobile screens

✓ 3 payment gateways covering NGN and international payments

✓ Push notifications, WhatsApp checkout and PWA support

✓ Inventory management, coupons and analytics dashboard

✓ API live on Render, Web live on Vercel

Backend API GitHub ↗ Live1 API ↗ Live2 API ↗ Web App GitHub ↗ Live Web App ↗ Mobile App GitHub ↗

1 / 7

Project

Student Progress Tracking System

A learning management system with separate dashboards for Admins, Mentors and Students. Role-based access means each user type only sees what they need. Includes quizzes, attendance tracking and certificate generation.

ASP.NET Core MVCPostgreSQL Entity Framework CoreASP.NET Identity

✓ Three-role access system; Admin, Mentor, Student

✓ Quiz modules and attendance tracking

✓ Certificate generation

✓ Deployed live

View on GitHub ↗ View Live ↗

1 / 3

Project

AI-Powered PDF Editor

A PDF editing tool where you type instructions in plain English and the AI figures out what to change. Supports redaction, annotations, text editing and keeps a full version history so you can roll back any change.

ASP.NET Core MVCSQLiteAI Integration

✓ Natural language editing commands via AI

✓ Full version history and rollback

✓ Text redaction and annotations

View on GitHub ↗ View Live ↗

More projects on my GitHub profile

Visit GitHub ↗

Zainab Owoilu

A developer who builds with purpose

Languages

Location

Interests

Built to deliver

Build Full-Stack Web Applications

Design and Manage Databases

Develop REST APIs

Implement Authentication and Security

Deploy to Cloud Platforms

Build Cross-Platform Mobile Apps

Built to work on any layer

Backend Development

API Development

Frontend Development

Mobile Development

Database and Infrastructure

Tools and Workflow

Where I've worked

Things I've built

Vendify, E-Commerce Platform

Student Progress Tracking System

AI-Powered PDF Editor

Always learning

Let's build something great together