Mastering Software Design: A Guide to Interface-First Development in Go
Learn how to design robust software using the Interface-First Development approach in Go. This guide covers key principles, best practices, and practical examples.
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Izhari Ishak Aksa
Software Engineer
Passionate about building scalable backend systems with Go and Java. With extensive experience in fintech and education industries, I focus on creating robust, high-performance applications that solve real-world problems.
Go (Golang)JavaKafkaELK StackPostgreSQLMongoDBRedisFlutterPHP
My Work
A collection of projects spanning mobile apps, web platforms, enterprise systems, and open source contributions
Pauli Test App
A mobile app designed to conduct Pauli tests for cognitive assessment, built using Flutter to enhance the user experience on multiple platforms.
FlutterGoRedisPostgreSQL
SistaStore
An affiliate website of AliExpress, built to provide users with product recommendations, price history and reviews, along with integrated affiliate links.
Next.jsGoDocker
Harvard Sentences
Interactive tool for speech intelligibility testing with IPA transcriptions and text-to-speech functionality.
Next.jsTypeScriptTailwind CSS
Socfindo Conservation Website
Website showcasing conservation efforts and environmental initiatives by Socfindo, focusing on sustainability in the palm oil industry.
PHPGoMySQLDocker
Socfindo Company Website
Corporate website for Socfindo, a major player in the palm oil industry, featuring information about the company products and services.
PHPGoMySQLDocker
SIMRKA
A comprehensive budgeting, expenditure, and payroll management system for the University of Sumatera Utara.
PHPMySQL
SIMSDM
A Human Resource Management System (HRMS) for the University of Sumatera Utara, facilitating employee records and payroll management.
PHPMySQL
Medical Student Logbook
A logbook management system for medical students, allowing for tracking of educational activities and daily tasks.
PHPMySQL
E-Commerce System Example
Example ecommerce system demonstrating full stack architecture for managing products, orders, and users.
GoDockerSQL
LeetCode Solutions
Repository of optimized LeetCode problem solutions in Go, demonstrating algorithmic and problem-solving skills.
GoAlgorithms
UVa Solutions
Repository of solutions for UVa problems, providing optimized solutions in Java for competitive programming.
JavaAlgorithms
Professional Experience
My journey through different roles and industries
Software Engineer
November 2022 - PresentGoTo Financial
Developing and maintaining critical backend services for fintech solutions, focusing on scalability, security, and performance optimization.
Head Programmer
August 2016 - May 2022University of Sumatera Utara
Led the development team in creating comprehensive university management systems and digital transformation initiatives.
- Managed a team of 5+ developers
- Architected and built multiple enterprise systems
- Modernized legacy systems and processes
Project Copilot
March 2011 - May 2016TopCoder
Coordinated and delivered UI/UX and wireframing projects while participating in competitive programming contests.
- Successfully managed 50+ design projects
- Achieved high ratings in algorithm competitions
- Collaborated with global developer community
Latest Blog Posts
Thoughts and insights on software engineering, technology, and best practices
Understanding when() and verify() in Mockito: When and Why to Use Them
In Mockito, both when() and verify() are commonly used methods, but they serve different purposes. Understanding their functions will help you determine when to use each.
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