Hi, I'm Agung YB
Software Engineer
Senior Software Engineer with 9+ years of experience building high-scale systems and leading engineering teams. Expert in React, Golang, PHP, and Python—focused on system architecture, performance optimization, and cost-efficient infrastructure. Proven track record migrating legacy monoliths to scalable microservices at Hostinger and Ralali.
My Portfolio
Here are some of my recent projects that showcase my skills in web development, UI/UX design, and problem-solving. Click a card to see full details.
Sporto.id
End-to-end sports management ecosystem with automated field booking, matchmaking ("main bareng"), and POS for venue owners. Backend achieved sub-10% CPU/RAM utilization at 150+ concurrent users. OAuth 2.0, Elasticsearch, CI/CD with 99.9% uptime.
Construction & IoT (Magicsoft)
High-availability construction management and IoT systems. Implemented Redis caching and efficient database indexing to reduce query latency across web applications.
Sporto.id
End-to-end sports management ecosystem with automated field booking, matchmaking ("main bareng"), and POS for venue owners. Backend achieved sub-10% CPU/RAM utilization at 150+ concurrent users. OAuth 2.0, Elasticsearch, CI/CD with 99.9% uptime.
Construction & IoT (Magicsoft)
High-availability construction management and IoT systems. Implemented Redis caching and efficient database indexing to reduce query latency across web applications.
E-Ujian.id / Exambro
Online examination platform: optimized backend architecture, migrated critical modules from PHP to Golang. Developed Exambro—a dedicated mobile exam browser for secure online exams.
Guruku.com
EdTech course application launched with scalable backend solutions. End-to-end release process using Golang, Redis, MySQL, and Docker.
Niagahoster / Hostinger
Optimized billing for hosting, domain, and VPS. Led zero-downtime migration of hosting, VPS, domain, and payment systems. Revamped member area and integrated with Hostinger platform.
Ralali B2B Marketplace
OTP and security features, migration from PHP to Golang for critical backend systems. Integrated Elasticsearch for search efficiency and system responsiveness.
Work Experience
Over 9 years building high-scale systems and leading engineering teams across startups and enterprises.
Aug 2025 - Feb 2026·Indonesia (Remote)
Software Engineer
sporto.id
- Architected end-to-end sports management ecosystem: field booking, matchmaking, POS for venue owners.
- Backend with Golang, PostgreSQL, Redis—sub-10% CPU/RAM at 150+ concurrent users.
- Elasticsearch, OAuth 2.0 (Google & Apple), React on Cloudflare Pages. CI/CD via GitHub Actions, Docker, DigitalOcean; 99.9% uptime.
Oct 2023 - Jul 2025·Malang, East Java (Hybrid)
Software Engineer Team Lead
Magicsoft Asia
- High-availability construction management and IoT systems with React, Golang, PostgreSQL.
- Redis caching and database indexing to reduce query latency.
- Led cross-functional teams and advocated effective collaboration.
Aug 2023 - Present·Worldwide (Remote)
Software Engineer & AI Consultant
Freelance
- E-Ujian.id: Backend optimization, PHP→Golang migration, Exambro exam browser app.
- Utas.co: Landing page and backend from scratch. Guruku.com: EdTech course app (Golang, Redis, MySQL, Docker).
- Outlier & Telus: LLM evaluation, TTS training. Morbis: Healthcare DB refactor (PHP, Oracle, Redis, Vue).
Aug 2025 - Feb 2026·Indonesia (Remote)
Software Engineer
sporto.id
- Architected end-to-end sports management ecosystem: field booking, matchmaking, POS for venue owners.
- Backend with Golang, PostgreSQL, Redis—sub-10% CPU/RAM at 150+ concurrent users.
- Elasticsearch, OAuth 2.0 (Google & Apple), React on Cloudflare Pages. CI/CD via GitHub Actions, Docker, DigitalOcean; 99.9% uptime.
Oct 2023 - Jul 2025·Malang, East Java (Hybrid)
Software Engineer Team Lead
Magicsoft Asia
- High-availability construction management and IoT systems with React, Golang, PostgreSQL.
- Redis caching and database indexing to reduce query latency.
- Led cross-functional teams and advocated effective collaboration.
Aug 2023 - Present·Worldwide (Remote)
Software Engineer & AI Consultant
Freelance
- E-Ujian.id: Backend optimization, PHP→Golang migration, Exambro exam browser app.
- Utas.co: Landing page and backend from scratch. Guruku.com: EdTech course app (Golang, Redis, MySQL, Docker).
- Outlier & Telus: LLM evaluation, TTS training. Morbis: Healthcare DB refactor (PHP, Oracle, Redis, Vue).
Jul 2020 - Aug 2023·Yogyakarta (Remote)
Software Engineer Team Lead
Niagahoster (Part of Hostinger Global)
- Optimized billing for hosting, domain, and VPS. Launched features across Hostinger branches.
- Zero-downtime migration of hosting, VPS, domain, and payment from Niagahoster to Hostinger.
- Revamped member area; guided team with Golang, PHP, Laravel, Redis, Vue.js. Best Team Member 2022.
Apr 2018 - May 2020·West Jakarta, Indonesia
Software Engineer Team Lead
Ralali.com - B2B Marketplace
- OTP and security features. Led PHP→Golang migration for critical backend systems.
- Elasticsearch integration for search efficiency and responsiveness.
- Best Dedicator / Best Performance 2018.
Feb 2017 - Mar 2018·Malang, East Java
Website Developer
KapanLagi Network (KapanLagi Youniverse)
- Built and maintained kapanlagi.com, merdeka.com, fimela.com, dream.co.id, famous.id.
- PHP, MySQL, jQuery, Bootstrap.
Apr 2015 - Nov 2016·Malang, East Java
Website Developer (Part Time)
Golden Hope Technology
- Developed goldenhope.net, georgeaccounting.com, e-accounting.id.
- PHP, MySQL, jQuery, Bootstrap.
Skills
Technologies and tools I use to build scalable, reliable systems.
Programming Languages
Databases & Search
DevOps & Tools
Frontend
Education & Awards
Academic background and recognition for outstanding contribution.
Education
Bachelor of Computer Science
University of Brawijaya
2013 - 2017
Malang, Indonesia
Vocational High School in Computer Software Engineering
2011 - 2013
Awards & Honors
Best Team Member
Niagahoster - Web Hosting Unlimited Indonesia
2022
Best Dedicator / Best Performance
Ralali.com - B2B Marketplace
2018
2nd Place Information System Grand Design
Ma Chung University
2015
Let's Work Together
Available for consulting and engineering roles. I help teams build scalable systems, improve performance, and deliver reliable products.
Open to impactful opportunities
Build something reliable, scalable, and production-ready.
I focus on architecture decisions, delivery velocity, and production reliability. If that matches your goals, let's start the conversation.
How We Can Start
Step 1
Brief
Share goals, scope, and timeline so I can understand your priorities.
Step 2
Scope
I define practical milestones, estimate effort, and align delivery plan.
Step 3
Build
Execution starts with clear deliverables, transparent updates, and quality focus.