about me
Backend Developer
I’m Yesa, a proactive Backend Developer with a strong foundation in building efficient and scalable backend systems. Although I’m early in my career, I’ve applied my technical knowledge through real-world projects, including internship and freelance experience. I’m highly motivated to contribute my eagerness to learn, problem-solving mindset, and growing expertise within dynamic and sustainable development environments.
Freelance Backend Developer (Project-Based)
Client Project
- Engineered a command-line interface (CLI) tool using Go to provide a client with a robust solution for email campaign management.
- The application's core functionalities involved bulk email dispatch to recipient lists from a file, dynamic HTML template parsing, and seamless integration with third-party SMTP providers, including SendGrid.
Web Developer Intern
WAN Teknologi Internasional
- Managed website content and social media to support digital marketing activities.
- Completing several projects, such as:
- Polling Website - Platform for creating interactive polls.
- Product Management Website – Website internal for managing products.
- Tech stack: Laravel, JavaScript, Bootstrap, Mysql.
- Key implementations:
- Authentication, RBAC, and authorization.
- Data relationships using Eloquent ORM.
- Database normalization for efficiency and consistency.
- Applied MVC structure and separation of logic and presentation.
- Practiced clean coding habits by keeping controllers lean and codebase organized.
Pengembangan Perangkat Lunak dan Gim (PPLG)
SMK Amaliah 1 & 2 Ciawi
- Join the Team Developer, an internal organization focused on developing programming skills.
- Act as a mentor for juniors in the Team Developer, especially in teaching PHP basics.
- Representing class XII PPLG 1 and winning the P5 competition between classes 12.
- Learn the basics of programming and application development.
Go (Basic)
HackerRank
2025
Webservices API Testing with Postman
Udemy
2025
JavaScript Intermediate
Sololearn
2024
Belajar Dasar Pemrograman Web
Dicoding Indonesia
2024
Belajar GIT untuk Pemula
Udemy
2024
PHP Tutorial Beginner to Advanced
Udemy
2024
Introduction to HTML
Sololearn
2024
Featured Project
User and Role Management
To solve the challenge of managing user permissions securely, I engineered a backend system implementing Role-Based Access Control (RBAC). To further enhance performance and reduce database load, I integrated a Redis caching layer. This project showcases my ability to build secure, modular, and high-performance systems in Golang.
- Authentication and Authorization with JWT
- Role-Based Access Control (RBAC) Middleware
- Performance optimization with a Redis Caching Layer
- Robust error handling using custom sentinel errors
- Code structure adopting Clean Architecture principles
- Interactive API documentation with Swagger
Another Project
Book Management REST API
A simple RESTful API for managing books, built with Golang, GORM, and PostgreSQL.
Product Management Website
This website is a project for managing products, designed using Laravel and several supporting technologies.
Polling Website
Platform for creating interactive polls with user management and features that include IP and account based spam