Miftahun Najat
Software Engineer at GoTo Group
Surabaya, East Java, Indonesia
Summary
👤
Senior🎓
Top SchoolMiftahun Najat is a backend software engineer with 6+ years building high-scale systems across ride-hailing, travel, e-commerce, and recruitment products, and nine years of hands-on engineering experience overall. Currently at Gojek, he owns pricing and booking services for transport features that handle millions of daily requests, working with Go, Kafka, Redis, and PostgreSQL. He has a track record of designing resilient microservices—examples include a 200k-simultaneous seatmap ordering system, supplier integrations adding 10k+ inventory items, and SEO-driven web experience backends that boosted organic traffic. Comfortable across production reliability, incident response, and performance tuning, he routinely collaborates with product, mobile, and data teams to ship scalable features. An active contributor to open-source testing tooling, he has improved assertion APIs and test coverage in a popular Kotlin expectation library, reflecting a focus on quality and developer ergonomics. Based in Surabaya, he combines pragmatic system design with a knack for turning reliability challenges into measurable product improvements.
9 years of coding experience
3 years of employment as a software developer
Bachelor of Applied Science - BASc, Informatic Engineering, Bachelor of Applied Science - BASc, Informatic Engineering at Politeknik Elektronika Negeri Surabaya
Indonesian, English
Stackoverflow
13reputation
828reached
10answers
0questions
Github Skills (18)
kotlin10
assertion10
testing10
assertk10
assertj10
assert10
kotlin-multiplatform9
test-automation8
api-design8
activerecord6
ruby-on-rails6
heroku6
gson6
android6
google-maps6
Programming languages (7)
Github contributions (5)
robstoll/atrium
Apr 2020 - May 2020
A multiplatform expectation library for Kotlin
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:8 commits, 6 PRs, 37 comments in 26 days
Contributions summary:Miftahun primarily focused on improving the assertion library's functionality and testing capabilities. Their contributions involved modifying the fluent API for character sequence assertions, including adding and refining methods for checking character sequence containment and elements. Furthermore, the user added test cases, fixed bugs related to empty iterable handling, and deprecated/replaced existing APIs. This indicates a focus on refining existing features and ensuring the reliability of the library through comprehensive testing.
assertion-libraryassertionstestingkotlin-multiplatformkotlin-testing
Miftahunajat/english-kids-talk
Sep 2018 - Jan 2019
Contributions:76 commits, 10 pushes in 3 months
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