Frontend Development
8 Technologies
Building modern, responsive, and interactive interfaces with a focus on performance and user experience.
- HTML5
- CSS / Tailwind
- JavaScript
- TypeScript
- React
- Next.js
- Redux Toolkit
- Framer Motion
AVAILABLE FOR OPPORTUNITIES
HELLO, I'M
Dada KingsleyOluwasanmi.
Full-Stack Developer, UI/UX Designer and Graphic Designer
I design and develop modern digital experiences that combine clean interfaces, thoughtful design, and reliable engineering. From concept to production, I build products that look exceptional and work seamlessly.
3+
Years Experience
10+
Projects Built
03
Creative Fields
Developer & Designer
Building with purpose.
GET TO KNOW ME
About Me.
A closer look at my background, expertise, and the approach I bring to building meaningful digital products.
Developer & Creative
Engineering, design & problem solving
I'm Dada Kingsley Oluwasanmi, a Full-Stack Developer, UI/UX Designer, and Graphic Designer based in Lagos, Nigeria.
I build modern digital experiences that combine clean engineering, thoughtful interfaces, and practical user experiences. I enjoy transforming ideas into functional, polished, and reliable digital products.
DESIGN-DRIVEN DEVELOPMENT
Full Stack Development
Building responsive applications, robust APIs, and complete digital products from frontend to backend.
ReactNext.jsNode.jsASP.NET
UI/UX Design
Creating intuitive, accessible interfaces with a focus on usability, clarity, and seamless experiences.
FigmaPrototypingDesign SystemsUX
Graphic Design
Developing visual identities and creative assets that communicate ideas and strengthen brands.
BrandingGraphicsVisual Design
Software Engineering
Engineering scalable, maintainable systems with clean architecture and reliable application logic.
TypeScriptC#REST APIsGit
3+
Years Experience
10+
Projects Built
03
Creative Fields
Full
Stack Focus
Interested in collaborating on a project?
WHAT I WORK WITH
Skills & Expertise.
A combination of development, design, and modern tools I use to transform ideas into functional digital products.
Backend Development
8 Technologies
Developing secure APIs, server-side applications, and reliable backend systems using modern technologies.
- Node.js
- C#
- ASP.NET Core
- .NET
- REST APIs
- Entity Framework Core
- JWT Authentication
- API Integration
Database Management
4 Technologies
Working with relational databases, data modeling, queries, and efficient application data management.
- PostgreSQL
- MySQL
- SQL
- Database Design
UI/UX & Design
5 Technologies
Designing accessible, intuitive interfaces with thoughtful visual direction and user-centered interactions.
- UI/UX Design
- Responsive Design
- Accessibility
- User Research
- Prototyping
Tools & Deployment
7 Technologies
Using professional development tools, version control, deployment platforms, and efficient engineering workflows.
- Git
- GitHub
- Vercel
- Netlify
- Postman
- Docker
- CI/CD
Always learning, experimenting, and refining my approach to building better digital experiences.
Continuously Learning
SELECTED WORK
Projects I've Built.
A selection of real-world applications, digital platforms, and software systems built across frontend, full-stack, backend, and desktop development.
Showing 8 projects
Curated portfolio
Globalease - HR
01A professional HR consulting and academy platform showcasing workforce solutions, HR services, learning resources, and company expertise.
- TypeScript
- HTML5
- Next.js
- Tailwind CSS
Summy Solutions E-commerce Platform
02A full-stack e-commerce platform featuring product discovery, cart management, checkout, authentication, user accounts, and an administrative dashboard.
- Next.js
- TypeScript
- Tailwind CSS
- C#
- ASP.NET
- PostgreSQL
- Flutterwave
Quiz App
03An interactive quiz application with multiple questions, score tracking, answer selection, and responsive result handling.
- React.js
- JavaScript
- Tailwind CSS
- State Management
Brand Lift Technologies
04A modern corporate website showcasing digital services, technical expertise, and professional solutions through a responsive interface.
- React.js
- JavaScript
- Tailwind CSS
- Framer Motion
- Responsive Design
House of 2Talk
05A modern entertainment and business platform combining barbing, event planning, comedy, and content creation services.
- Next.js
- TypeScript
- Tailwind CSS
- Responsive Design
- UI/UX
Desktop
Chess Game
06A desktop chess application built with C# and WPF, featuring an interactive board and core chess gameplay functionality.
- C#
- WPF
- Game Development
- Desktop Application
View Source
Source Only
Backend
Champions League Simulator
07An ASP.NET Core football simulation API for managing teams, competitions, fixtures, matches, standings, and automated results.
- C#
- ASP.NET Core
- Entity Framework Core
- MS SQL Server
- REST API
View Source
Source Only
Employee Management System
08A full-stack enterprise system for employee administration, attendance, leave management, payslips, authentication, and role-based dashboards.
- React
- TypeScript
- Tailwind CSS
- C#
- ASP.NET Core
- SQL Server
- REST API
More than just projects.
Every project represents an opportunity to solve a problem, explore a technology, and build something meaningful.
MY JOURNEY
Experience & Education.
My professional experience, technical growth, and educational journey in software development and design.
- 2025 - PresentNigeria
Freelance Developer
Self-Employed
I create custom websites and web applications for clients, focusing on responsive interfaces, performance, functionality, and user experience.
- Built responsive websites and web applications
- Integrated frontends with Next.js and TypeScript
- Implemented responsive designs using Tailwind CSS
- Optimized application performance and user experience
- Worked with clients to understand requirements and deliver tailored solutions
- HTML
- CSS
- JavaScript
- React
- Next.js
- TypeScript
- Tailwind CSS
- C# / ASP.NET
- Early 2025Nigeria
Assistant Coding Tutor
Olac Academy
Supported students in understanding programming concepts, developing practical projects, and building confidence with different technologies.
- Provided personalized coding guidance to students
- Supported hands-on programming projects
- Explained programming concepts using practical examples
- Helped students understand real-world development practices
- HTML
- CSS
- JavaScript
- React
- Programming Fundamentals
- 2025 - PresentNigeria
Full-Stack Developer Intern
Summy Solutions and Technologies
Contribute to the development of the company's full-stack e-commerce platform while working with the team to implement features, integrate services, and improve application performance.
- Contributed to the development of a full-stack e-commerce platform
- Implemented frontend and backend features
- Collaborated with the development team on application improvements
- Worked with authentication and authorization systems
- Integrated Paystack payment functionality
- Worked with database management and API integration
- Next.js
- C# / ASP.NET
- Tailwind CSS
- Paystack
- Authentication
- Authorization
- Database Management
Every experience and learning opportunity contributes to the way I design, build, and solve problems.
Let's ConnectLET'S WORK TOGETHER
Let's Build Something Great.
Have a project, idea, or opportunity in mind? Tell me what you're working on, and let's explore how to bring it to life.
BASED IN
Lagos State, Nigeria
Open to remote collaborations
What I Can Help With
Development, design & engineering
- Full-stack web applications
- Frontend development & UI/UX
- Backend APIs & integrations
- Responsive business websites
- Performance & optimization
Business Hours
Monday – Friday
9:00 AM – 6:00 PM WAT
Feel free to send an inquiry at any time.
Prefer a quick conversation?
Reach out directly on WhatsApp to discuss your project.