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Irzam Kasyfillah

@irzamkasyfillah

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Software Engineer with 3+ years building scalable Golang and TypeScript backend systems.

Indonesia

Message

What I'm looking for

I’m looking to build scalable backend systems with Golang and TypeScript—owning integrations, APIs, and database migrations—while collaborating in a fast-moving team. I want work where quality testing and reliable deployments matter.

I’m a Software Engineer with over three years of experience building scalable applications using Golang and Typescript. I focus on driving innovation through robust backend solutions that support business growth.

At CYZA, I developed payment integration test flows with third-party services and built a notification system for user alerts based on actions. I also created a permission locking system, maintained CRM-related fixes, implemented a gRPC API endpoint, and automated reminders with a cron scheduler. I wrote MySQL migrations using Goose and delivered code quality with unit tests, integration tests, and Playwright UI tests.

Earlier, as a Back End Engineer Intern at NOBI, I built microservices, developed REST APIs, and connected services via RabbitMQ. I also supported backend development for an online examination platform (Try Out UTBK) using PHP and Laravel, and I’ve worked with Docker/Kubernetes, plus CI/CD tooling to keep deployments reliable.

Experience

Work history, roles, and key accomplishments

Freelance Software Engineer

Psimetrics

May 2026 - Jul 2026 (2 months)

Developed and maintained a CBT (computer-based test) application, including backend services for Excel export and Word/Excel import enhancements. Containerized the app with Docker, deployed to a VPS with Nginx, and configured HTTPS.

PHP CodeIgniter Docker Docker Compose Nginx HTTPS

Back End Engineer Intern

Nobi

Oct 2022 - Jul 2023 (9 months)

Built and maintained backend microservices, developing REST APIs for service communication. Integrated services using RabbitMQ, prepared endpoints for the banner application, and documented APIs with Swagger.

REST APIs Microservices RabbitMQ Swagger MySQL MongoDB Redis

Web Development Intern

4 J Operation

Oct 2020 - Dec 2020 (2 months)

Engineered an online examination website (Try Out UTBK) using PHP and Laravel for the backend and Bootstrap for the frontend.

PHP Laravel Bootstrap Frontend Backend Web Development

Education

Degrees, certifications, and relevant coursework

Hasanuddin University

Bachelor of Informatics, Informatics Engineering

2017 - 2022

Grade: 3.66

Earned a Bachelor of Informatics in Informatics Engineering. Completed a thesis project developing a Tuberculosis data mining web app using FastAPI and NextJS.