March 20, 2024
8 min readBuilding Scalable Full-Stack Applications with NestJS and React
A comprehensive guide to creating scalable applications using NestJS backend and React frontend with modern architecture patterns.
About Me
Crafting Digital Solutions with Passion & Precision
I'm a passionate CTO and Full-Stack Web Developer with expertise in TypeScript, E-learning systems, and modern web technologies. With 4+ years of experience, I've led technology teams at Ozone Technology and Golden Age Technology, contributing to various projects that drive business growth.
Leadership & Strategy
CTO experience leading technology teams and driving innovation at scale
Full-Stack Expertise
Proficient in both frontend (React, Next.js) and backend (Node.js, NestJS) development
Modern Technologies
Specialized in TypeScript, Prisma, PostgreSQL, and TailwindCSS for scalable solutions
Education
Management - Ethiopian Civil Service University (Ongoing)
Electronics & Communication Engineering - Adama Science & Technology University
Location
Addis Ababa, Ethiopia
Available for remote work globally
Core Technologies
TypeScript
TypeScript95%
React.js92%
Next.js90%
Node.js88%
NestJS85%
PostgreSQL82%
Experience Highlights
Full-Stack Developer at Impact Makers Foundation (2025-Present)
CTO at Golden Age Technology (2024-Present)
CTO at Ozone Technology (2023-2024)
Full-Stack Developer at Ozone Technology (2022-2023)
Junior Developer at Ozone Technology (2021-2022)
Client Testimonials
What Clients Say
Real feedback from clients I've worked with on successful projects
"Harun delivered an exceptional e-commerce platform that exceeded our expectations. His technical expertise and attention to detail are outstanding. The project was completed on time and within budget."
AM
Amina Mohammed
CTO, TechStart Inc.
E-commerce Platform
"Working with Harun on our LMS was a game-changer. He understood our requirements perfectly and built a scalable solution that's now serving 10,000+ students. Highly recommended!"
YA
Yusuf Ahmed
Founder, EduTech Solutions
Learning Management System
"Harun's API development skills are top-notch. He built a robust backend system that handles millions of requests daily. His code quality and documentation are exemplary."
FA
Fatima Abdella
Product Manager, DataFlow
API Development
Core software I use
Tools and technologies I work with
TypeScript
TypeScript
React.js
Next.js
Node.js
Nest.js
Prisma
TailwindCSS
PostgreSQL
Redis
Docker
Kubernetes
Git
GitHub
MySQL
Express.js
Python
3+Years
Professional Web
Development Experience
Building robust, scalable, and modern web applications for clients and companies worldwide.
Services
What I Can Do For You
Comprehensive web development solutions tailored to your business needs
Full-Stack Development
End-to-end web applications using TypeScript, React, Next.js, and NestJS. From concept to deployment.
React & Next.js
Node.js & NestJS
Database Design
API Development
Backend Development
Robust server-side solutions with NestJS, Express.js, Prisma ORM, and PostgreSQL databases.
RESTful APIs
Database Optimization
Authentication
Third-party Integrations
Frontend Development
Modern, responsive user interfaces with React, Next.js, TailwindCSS and exceptional UX design.
Responsive Design
Modern UI/UX
Performance Optimization
Interactive Components
Technologies I Master
TypeScriptReact.jsNext.jsNode.jsNest.jsPrismaTailwindCSSPostgreSQLRedisDockerKubernetesGitGitHubMySQLExpress.jsPythonTypeScriptReact.jsNext.jsNode.jsNest.jsPrismaTailwindCSSPostgreSQLRedisDockerKubernetesGitGitHubMySQLExpress.jsPythonTypeScriptReact.jsNext.jsNode.jsNest.jsPrismaTailwindCSSPostgreSQLRedisDockerKubernetesGitGitHubMySQLExpress.jsPythonTypeScriptReact.jsNext.jsNode.jsNest.jsPrismaTailwindCSSPostgreSQLRedisDockerKubernetesGitGitHubMySQLExpress.jsPythonPortfolio
Featured Projects
Showcasing real-world applications built with modern technologies
Full-Stack
Impact Maker Foundation: Organization Website
Leadership training program provider NGO in Ethiopia founded by Ahmadin Jable, featuring membership management, article management, booking management, and multi-language support.
Next.jsNestJSPostgresqlTypeScriptTailwindCSSNode.js
Full-Stack
ImpactAcademy: Multi Institution E-Learning Saas Platform
Multi-institution SaaS e-learning platform supporting program management, student administration, progress tracking, and scalable multi-tenant architecture.
MicroservicesNext.jsNestJSMongooseRedisTypeScriptTailwindCSSMongoDB
Full-Stack
Data4Impact: Data Collection and Analysis SaaS Platform
A SaaS platform empowering organizations to design custom surveys, collect field data, visualize insights, and collaboratively manage research projects with advanced analytics and reporting tools.
MicroservicesNext.jsNestJSMongooseRedisTypeScriptTailwindCSSMongoDB
Professional Journey
My Work History
A brief overview of my professional journey and career progression
Full-Stack Web Developer
Impact Makers Foundation
Addis Ababa, Ethiopia
Jun 2025 - Present
Designed and developed full-stack applications using NestJS, Prisma, React.js, and TailwindCSS for diverse client needs.
Chief Technology Officer (CTO)
Golden Age Technology
Addis Ababa, Ethiopia
May 2024 - Present
Leading technology vision and strategy, managing engineering teams, and driving innovation in software development.
Chief Technology Officer (CTO)
Ozone Technology
Addis Ababa, Ethiopia
May 2023 - 2024
Led technology strategy, product development, and team management for innovative software solutions.
Full-Stack Web Developer
Ozone Technology
Addis Ababa, Ethiopia
Jun 2022 - May 2023
Designed and developed full-stack applications using NestJS, Prisma, React.js, and TailwindCSS for diverse client needs.
Junior Developer
Ozonetechnology Company
Adama, Ethiopia
Jan 2021 - Jun 2022
Contributed to backend systems using Node.js and Express.js, implementing business logic and integrating third-party APIs.
Latest Articles
Read My Latest Articles
Insights and thoughts on modern web development and technology
Development
FAQ
Frequently Asked Questions
Common questions about my development process and services
🚀
What is your development approach and methodology?
I follow modern development practices including Agile methodology, clean code principles, and best practices. Each project starts with requirements gathering, followed by planning, development, testing, and deployment. I use Git for version control and implement CI/CD pipelines for automated deployments.
⚡
What technologies do you specialize in?
I specialize in TypeScript, React.js, Next.js, Node.js, NestJS, and Prisma. I have extensive experience with PostgreSQL, TailwindCSS, and modern development practices including testing and database design. I also work with Docker, AWS, and various third-party APIs.
🛠️
Do you provide ongoing support and maintenance?
Yes, I offer comprehensive post-launch support and maintenance packages. This includes bug fixes, security updates, performance optimization, feature additions, and technical support to ensure your application continues to run smoothly and stays up-to-date with the latest technologies.
⏱️
What is your typical project timeline?
Project timelines vary based on complexity. A simple website might take 2-4 weeks, while a complex full-stack application could take 2-3 months. I always provide detailed project timelines upfront and maintain regular communication throughout the development process.
🌍
Do you work with international clients?
Absolutely! I work with clients worldwide and am experienced in remote collaboration. I'm available in East Africa Time (EAT) but can accommodate different time zones for meetings and communication. I use modern collaboration tools for seamless remote work.
Get In Touch
Ready to Start Your Project?
Let's discuss your ideas and create something amazing together. I'm available for freelance projects and full-time opportunities.
Email Me
harunjeylanwako@gmail.com
Reply within 24hCall Me
+251 922 414 657
Available 9-5 EATLocation
Addis Ababa, Ethiopia
Remote Available