Greater Yogyakarta, Indonesia 🔗 LinkedIn | Portfolio | Blog
Software Engineer & Technical Author with experience since 2008. Skilled in developing Android & iOS applications, CI/CD automation, and security testing (penetration testing). Combining software engineering with cybersecurity to build reliable and secure solutions.
- Software Engineering: Android (Java, Kotlin, RxJava, Retrofit), iOS (Swift, SwiftUI, Alamofire), CI/CD (CircleCI, GitLab, Azure DevOps)
- Cybersecurity: Web & Android Penetration Testing, Vulnerability Scanning, API Security Testing
- Leadership & Product: Head of Product & Engineering, Team Mentoring, R&D
- Tools: Firebase, ML Kit (Google/Firebase/Huawei), Maven Repository, Microsoft Azure DevOps
- Writing & Reviewing: Technical Content Authoring (CircleCI, Baeldung), Content Advisory (LogRocket)
Technical Code Reviewer — May 2025 – Present
- Reviewed tutorial code for CircleCI blog: tested code samples, verified builds, and ensured content quality and consistency.
Tech Author — Feb 2025 – Present
- Wrote technical content on CI/CD automation, security testing, and performance optimization.
- Integrated vulnerability scanning tools into build pipelines.
Content Advisory Board — Sep 2024 – May 2025
- Reviewed and rated software development articles and provided actionable feedback to improve content quality.
Head of Product & Engineering — Aug 2023 – Feb 2025
- Led R&D of new features, technology implementation, and managed app releases to Google Play & App Store.
Senior Software Engineer – Mobile Platform — Sep 2020 – Feb 2025
- Developed Android & iOS apps from scratch.
- Built Kredibel Vision SDK and managed internal Maven repository.
- Conducted R&D on ML libraries (Google/Firebase/Huawei ML Kit).
Author (Java & Kotlin series) — Oct 2023 – Oct 2024
- Wrote JVM ecosystem tutorials/articles, built sample projects, and performed unit testing under editorial guidance.
Lead Android Engineer — Aug 2015 – Mar 2020
- Led Android development team through coding, testing, bug fixing, staging, and production releases.
- Directed research and implementation of new technologies.
Senior Android Developer — 2015 – 2017 Android Developer — Jan 2013 – Aug 2015
Teacher/Mentor — Jun 2015 – Dec 2015
- Designed syllabus, taught Android development, and guided students on projects.
Information System/Programmer — Mar 2010 – Dec 2012
- Developed and maintained information systems (student registration, finance, election counting, and event websites).
Delphi Programmer — Jun 2008 – Nov 2010
Universitas Negeri Yogyakarta — B.Sc. Mathematics (2002 – 2009)
