Are you looking to build a modern, responsive, and scalable web application? Whether you're launching a startup, upgrading an existing product, or developing an internal tool, I provide full stack web development services tailored to meet your unique needs and goals.
I’m Jefferson Clinton Youashi, a Full Stack Web Developer with over 4 years of professional experience. My work focuses on delivering secure, efficient, and elegant web applications that solve real-world problems and scale with your business. From backend architecture to frontend design and deployment, I offer end-to-end development services that ensure quality, performance, and maintainability.
What I Offer
I specialize in handling the full lifecycle of web development—from concept to deployment. I work with founders, project managers, and technical teams to bring robust digital products to life.
Frontend Development
Modern, responsive UIs using React.js, Next.js, Tailwind CSS, and TypeScript
Seamless state management with Redux and Context API
Accessible, mobile-friendly, and SEO-optimized interfaces
Custom design implementation from Figma, Adobe XD, or Sketch
Backend Development
RESTful API and microservices development using Node.js (Express, NestJS) and Java (Spring Boot)
User authentication and authorization systems (JWT, OAuth2)
Integration of payment gateways, third-party APIs, and cloud services
Business logic implementation with scalable and clean code architecture
Database Management
Relational databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis)
Data modeling, indexing, and performance optimization
Database backup strategies and data migration planning
DevOps & Deployment
CI/CD pipelines using GitHub Actions, Jenkins
Containerization with Docker and orchestration with Kubernetes
Cloud hosting via AWS (EC2, S3, IAM, VPC, ELB), Render, and Vercel
Infrastructure as Code (Terraform, Ansible)
Monitoring and logging with Prometheus, Grafana, and the ELK stack
Key Benefits of Working with Me
A proven track record of delivering real-world applications used by institutions and businesses
Strong ability to align technical solutions with business goals
Clean, modular, and scalable code that’s easy to maintain
A collaborative approach with clear communication and regular updates
Ideal Use Cases
SaaS product development
Admin dashboards and internal business tools
Education management platforms
Booking, scheduling, and e-commerce solutions
Real-time chat and notification systems
Reporting and analytics dashboards
Tools and Technologies
Frontend: React.js, Next.js, Redux, Tailwind CSS, TypeScript, SASSBackend: Node.js, Express, NestJS, Spring Boot (Java)Databases: MongoDB, MySQL, PostgreSQL, RedisDevOps & Cloud: Docker, Kubernetes, GitHub Actions, Jenkins, AWS, Render, VercelOthers: Git, WebSockets, Firebase, Postman, Jira, Slack
Get in touch to discuss your project. I look forward to working with you.