I lead engineering teams and stay with clients until the system is actually in use.
Zydhan Linnar Putra, backend engineer in Surabaya. I lead 20 developers at ITS and supported the SEVIMA PENA go-live on-site with the client.
1 million+ users of the UTBK-SNBT registration system UTBK-SNBT users
~US$60k saved per year from SNPMB SSO optimization, about Rp1 billion at 2024 rates saved per year, about Rp1 billion (2024 rates)
140+ apps stayed compatible through the SSO migration to Azure AD apps stayed compatible
15+ interns mentored in DDD and Clean Architecture interns mentored
Three most recent roles
Software Engineer at SEVIMA PENA Leading the architecture and engineering team for a K-12 product Jan 2026 – presentFull-stack Developer at DPTSI ITS Student enrollment system, SSO proxy, myITS Portal Mobile Sep 2023 – Aug 2025Full-stack Engineer at SNPMB National UTBK-SNBT and SSO, part-time in parallel 2022 – present
See all roles on the CVFeatured projects
2026, leading architecture 2026 SEVIMA PENA K-12 platform taken from zero to launch, integrated with CBT, SSO, FinanceCloud, and Edufin. K-12 platform taken from zero to launch. GoReact2022 – present, full-stack 2022 – present UTBK-SNBT and SNPMB SSO National selection registration for 1 million+ users, plus an SSO that saves about Rp1 billion per year. National registration for 1 million+ users. GoFirestoreCloud Run2023 – 2025, architect 2023 – 2025 ITS Student Enrollment System Replacing a 17-year-old PHP 5 system with Go, PostgreSQL, Next.js, and Kafka. Replaced a 17-year-old PHP 5 system. GoPostgreSQLKafka2023 – 2025, initiator 2023 – 2025 myITS Portal Mobile Cross-platform app for students, staff, and lecturers, targeting 30,000+ users. Cross-platform app, targeting 30,000+ users. ExpoReact Native
Writing
Have a system to build or overhaul?
Tell me what you want to build, when it needs to be done, and the constraints. I reply by email or LinkedIn.