Umar Hadi Siswanto
👋

Umar Hadi Siswanto

DevOps Engineer in Yogyakarta, Indonesia, he/him

let's talk?

3 years ago

About

I'm a seasoned Software Engineer with over 6 years of experience in the field. I began my journey as a System Administrator, and my passion for all things related to Infrastructure, Computer Networking, and Security has only grown stronger over time. I consider myself a versatile generalist, always eager to learn and adapt to new challenges.

In my professional toolkit, you'll find expertise in various programming languages, including PHP, JavaScript, TypeScript, Kotlin, Python, and Golang. I'm well-versed in frameworks like CodeIgniter, Laravel, Next.js, SvelteKit, and React.js, and I'm proficient in containerization technologies like Docker and Kubernetes. Continuous Integration and Continuous Deployment (CI/CD) pipelines are second nature to me, and I'm comfortable navigating the cloud environments of AWS, GCP, and others.

My journey in the tech world began in 2015, and since then, I've honed my skills and expertise. I'm equally comfortable working with Linux, macOS, and Windows operating systems, and I hold a MTCNA MikroTik certification, showcasing my understanding of computer networks.

Throughout my career, I've been involved in a wide range of projects, from cryptography and e-commerce to point-of-sale systems and digital invitations for SaaS platforms. I've even dabbled in Android mobile app development. Currently, I hold the position of DevOps/SRE at a leading psychological assessment company, where I ensure the seamless operation of critical systems.

Beyond my professional life, I'm an avid self-hosting enthusiast. In my free time, I enjoy managing open-source applications like Mastodon and Pixelfed on my personal server.

I thrive on the dynamic and ever-evolving nature of the tech world, and I'm excited to continue my journey, tackling new challenges and contributing to innovative solutions in the field.

Contact

Telegram
GitHub

Projects

2023

The purpose of this project is to implement the AES 128 algorithm in a Point of Sale (POS) application using Laravel framework for document security.

2022

Excited to build wedding invitation called Heylook Invitation. This app for Indonesian couples who want to get married.

I built this because they used a regular invitation which I thought would make the budgets increase.

If you are Indonesian people and you want to get married, maybe you can consider to use my SaaS.

2021

This project is my practical work at college for Mahardika Komputer

Work Experience

2023 — Now
2023 — Now
DevOps/SRE (Part time) at Genial Digital Indonesia
Yogyakarta, Indonesia

I have been heavily involved in containerizing applications using Docker, ensuring they were easier to manage, deploy, and could run consistently across various environments. Additionally, I took charge of creating and managing CI/CD pipelines to facilitate rapid and high-quality software delivery. By leveraging GitHub Actions, I automated the testing, integration, and deployment processes for every code change, streamlining the development workflow.

Another essential aspect of my role was implementing effective load balancing mechanisms for both applications and databases. I utilized technologies like NGINX or HAProxy to efficiently distribute traffic, guaranteeing optimal availability for applications while minimizing any potential downtime.

As part of my responsibilities, I actively monitored and maintained servers, ensuring their optimal performance and reliability. Proactive monitoring, troubleshooting, and performance improvements were integral to achieving and sustaining excellent server availability. I also took charge of managing security updates and routine maintenance to uphold a secure and stable server environment.

Furthermore, I was responsible for establishing and managing regular database backup policies to safeguard critical data. My experience in restoring databases from backups proved valuable during disaster recovery or data loss incidents.

Throughout my endeavors, I've primarily worked with the tech stacks of Laravel, Docker, GitHub Actions, and Postgresql, which have enabled me to execute these tasks with proficiency and effectiveness. My passion for staying up-to-date with emerging technologies and continuous learning has further enhanced my ability to contribute to successful projects in the field of containerization, DevOps, and server management.

2018 — Now
Freelance at Self Employed

Create several types of websites ranging from UI/UX design to manufacturing such as information systems, company profiles, and mobile applications

2016 — 2016
Technical Support (Intern) at Mahardika Computer
Penajam Paser Utara

I do computer maintenance, troubleshoot local area network, and also printer maintenance

Certifications

2021 — 2024