Christian Ogunleye, Timileyin
Full Stack Developer
Also known as Djtimog
I am Christian Ogunleye (Djtimog), a passionate Full Stack Developer with a background in Mathematics. I build end-to-end web applications using React.js, Next.js, Node.js, Express, PostgreSQL, and MongoDB, covering everything from responsive UIs to RESTful APIs and database design.
I have hands-on experience with the MERN stack and a growing foundation in Python and backend architecture. I focus on writing clean, maintainable code that performs well across all devices, and I enjoy turning real-world problems into functional, user-friendly applications.
I'm continuously expanding my skills, currently deepening my knowledge in TypeScript, GraphQL, testing, and system-level programming, always aiming to grow into a well-rounded engineer. 🚀
Experience
Backend Engineering Trainee
Spraditech
Jan 2026 – Present
Undergoing structured backend engineering training focused on Python, Go, and Java for server-side development, alongside foundational exposure to AI/ML workflows.
- Building server-side applications and RESTful APIs using Python and Node.js.
- Structured training in Go for high-performance backend services.
- Designing and querying relational (PostgreSQL, MySQL) and non-relational (MongoDB) databases.
- Gaining foundational exposure to AI/ML workflows including NumPy and scikit-learn.
- Utilizing AI development tools daily to accelerate learning and improve code quality.
Frontend Development Trainee
Tech Master Institute
Apr 2024 – Apr 2025
Completed a hands-on frontend training program focused on building responsive and user-friendly web applications.
- Built responsive user interfaces with React and Tailwind CSS for multiple client-facing projects.
- Integrated REST APIs into frontend components, managing async data flows and error states.
- Collaborated on team projects using Git and GitHub for version control and code reviews.
Projects
GigTax – Freelance Tax Calculator
Full Stack Project
2026(2 weeks)
A live, production-grade SaaS tool used by freelancers across 53+ countries to calculate tax obligations, built and launched solo with full SEO and monetization infrastructure.
- Tax calculations for 53+ countries with accurate regional brackets
- Custom SVG donut chart for tax summary visualization
- Full SEO infrastructure: sitemap, robots.txt, JSON-LD structured data, canonical tags
- Static generation with generateStaticParams for all country/region routes
- AdSense ad slot system with placeholder/live switching via environment variable
- Vercel Analytics and Speed Insights for performance monitoring
- Contextual not-found pages per country route
Tech: Next.js 15, TypeScript, Tailwind CSS, shadcn/ui, Vercel, Vercel Analytics, Google AdSense
TaskFlow – Full Stack Task Management App
Full Stack Project
2025(1 week)
A complete full-stack task management system showcasing end-to-end ownership of API design, authentication, database architecture, and modern frontend.
- User authentication with JWT
- Create, update, delete and assign tasks to team members
- Comments and messaging system on tasks
- State management using Redux Toolkit
- Server state handling with React Query
- RESTful API built with Express and documented in Postman
- MongoDB database integration with Mongoose schemas
- Responsive UI with dark mode support
Tech: React, TypeScript, Redux Toolkit, React Query, Node.js, Express, MongoDB, JWT Authentication, Tailwind CSS, ShadCN UI
GitHub Repository Browser – React Native App
Full Stack Open – React Native Module
2026(2 weeks)
A production-grade React Native app built as the capstone project for the University of Helsinki Full Stack Open React Native module, demonstrating GraphQL, Apollo Client, and cross-platform mobile development.
- Fetches live GitHub repository data using the GitHub GraphQL API
- Apollo Client v3 with custom useQuery hooks for efficient caching
- Cross-platform support for iOS and Web via Expo
- Authentication flow with Formik and Yup form validation
- react-router-native navigation between screens
- Resolved complex Windows/Metro bundler ESM scheme errors
Tech: React Native, Expo SDK 54, GraphQL, Apollo Client v3, Formik, Yup, react-router-native
ChefClaude – AI Recipe Generator
Personal Project
2025(1 week)
My first AI-integrated project — built to solve a real everyday problem using the Anthropic Claude API with custom prompt engineering for reliable recipe output.
- Programmatic API calls to the Anthropic Claude API
- Ingredient-based recipe generation in real time
- Prompt engineering for consistent, structured recipe output
- Graceful error handling for API failures and timeouts
- Lightweight Vite build system
Tech: React, TypeScript, Anthropic Claude API, Vite
Halloween AI Story Website
Personal Project
2025(1 week)
An AI-enhanced Halloween storytelling site where users submit stories, join a mailing list, and receive daily spooky stories powered by Gemini AI — built without Express to deepen Node.js fundamentals.
- Custom Node.js server without Express
- AI-powered scary story detection using Gemini
- Story submission system (scary & non-scary)
- Email subscription for daily stories
- Jest testing with ignored files configuration
- Static file serving for HTML/CSS/JS
Tech: Node.js (HTTP server), JavaScript, Gemini AI, Jest, HTML & CSS, Nodemailer, Node Cron, Sanitize Html, JSON-based data storage
More
Skills
Frontend
HTML
Structuring web pages with semantic and accessible markup.
CSS
Styling responsive layouts and modern UI designs.
JavaScript
Building dynamic and interactive web applications.
TypeScript
Writing type-safe and scalable JavaScript applications.
React
Building reusable UI components and managing state efficiently.
Next.js
Creating optimized React apps with SSR and routing.
Tailwind CSS
Rapid UI development using utility-first CSS framework.
Backend
Node.js
Building scalable backend services and APIs.
Express.js
Creating RESTful APIs and server-side logic.
GraphQL
Efficient data fetching with flexible query structures.
REST APIs
Designing and consuming RESTful services.
Authentication
Implementing secure authentication systems (JWT, Clerk).
Python
Backend development, automation, and AI/ML workflows.
Database
PostgreSQL
Managing relational databases and structured data.
MongoDB
Handling NoSQL data for flexible applications.
MySQL
Writing queries and managing relational databases.
Tools & Testing
Git
Version control and collaboration using Git & GitHub.
Postman
Testing and debugging APIs.
Vitest
Unit and component testing for modern React apps.
React Testing Library
Testing UI components from a user perspective.
Vercel
Deploying and hosting frontend applications.
Currently Learning
Go
High-performance backend development and system-level programming.
Java
Object-oriented programming and enterprise backend development.
Python (AI/ML)
NumPy, scikit-learn, and machine learning pipelines.
Interests
- Sci-Fi, Thriller & Horror Movies
- Programming Documentations & Articles
- Online Games (Call of Duty)
- Exploring New Frontend Tools & Trends
- AI & Machine Learning
Copyright ©2025 DJ.timog. All Rights Reserved.