Mobile & Full-Stack Developer

Based in Indonesia

Hi, I’m Gerzha. I build mobile apps and the systems that power them.

Explore my workView CV
5+Years of Experience
20+Products & Modules
10+Published Apps
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Project Portfolio

Built to make an impact.

A few things I’ve helped bring to life.

Tech Stack

Mobile first.
Full-stack minded.

Tools and technologies I use to design, build, release, and maintain digital products.

Flutter

My main area of work, from architecture and native integration to store releases.

FlutterDartAndroidiOSReact Native

React

Responsive interfaces and frontend code that stays manageable as a product grows.

ReactNext.jsTypeScriptVue.jsTailwind

Node.js / .NET

APIs, authentication, real-time data, and database-backed application flows.

Node.js.NETPostgreSQLFirebaseREST API

Data & Delivery

Infrastructure, monitoring, and device integrations used to release and run products.

NginxPM2CrashlyticsBluetoothNFC
Experience acrossBankingEducationPublic servicesCommerce

About

Gerzha Hayat Prakarsha / zh4dev

Senior Mobile Developer with Full-Stack Experience

LinkedIn

I build mobile apps, web platforms, and backend systems with close attention to architecture, performance, and usability.

I work with Flutter, React, Node.js, .NET, Firebase, PostgreSQL, API integrations, app store releases, and cloud deployment. I like turning complex requirements into products that are clear, reliable, and easy to use.

Experience

A little of my journey.

Nov 2022 - PresentFlying Cape Pte. LtdSenior Mobile Developer with Full-Stack Experience

Full-time · Singapore

  • Built and maintained Flutter apps for Android and iOS, used by educators, parents, and partners across several countries.
  • Developed responsive web applications with React.js and Next.js, improving usability and page load times.
  • Designed and maintained RESTful APIs in .NET, connecting them to databases and supporting services.
  • Improved the performance, security, and interface quality of Flutter apps on Android and iOS.
  • Migrated legacy mobile apps to Flutter, bringing separate codebases together and reducing long-term maintenance costs.
  • Used Firebase Crashlytics and regular monitoring to reduce crash rates significantly and improve app stability.
  • Connected Niimbot label printer SDKs through native Android code (Java/C++) and exposed them to Flutter.
LinkedIn
Mar 2022 - Apr 2023PT. Bank Rakyat IndonesiaSenior Mobile Developer

Full-time · Indonesia

  • Developed and maintained BRI Ceria, a digital lending app used by BRI customers at banking scale.
  • Moved native Android modules written in Java to Flutter, making cross-platform feature delivery faster.
  • Implemented secure flows for authentication, loan applications, payments, and notifications.
  • Integrated liveness detection for face verification and analytics to support fraud prevention and user trust.
  • Improved app performance and reliability through focused optimization and regular monitoring.
LinkedIn
May 2021 - Apr 2022PT. Rakhasa Artha WisesaLead Mobile Developer

Full-time · Indonesia

  • Led the migration from React Native to Flutter to improve performance and development efficiency.
  • Defined state management architecture and development standards for the mobile team.
  • Mentored developers, delegated tasks, and aligned weekly milestones with project managers.
  • Delivered secure mobile applications for Android and iOS.
LinkedIn
Jan 2021 - May 2021PT. Qoin Digital IndonesiaMobile Developer

Full-time · Indonesia

  • Built and maintained mobile applications with Flutter.
  • Worked on performance, security, and release readiness.
LinkedIn
Nov 2017 - Feb 2021Mercu Buana UniversityLaboratory Assistant

Part-time · Indonesia

  • Handled installation, monitoring, and maintenance for the computer lab to keep its systems stable and available.
  • Provided technical support to lecturers and students during practical lab sessions.
  • Documented monthly maintenance work and reported on system performance.
LinkedIn
Jun 2020 - Nov 2020Direktorat Jenderal ImigrasiMobile Developer

Internship · Indonesia

  • Developed a native Android application in Java to support internal operations.
  • Worked with stakeholders to understand their needs and improve day-to-day processes through the application.
  • Presented the application and its technical implementation to government officials and decision-makers.
  • Prepared weekly progress reports covering development milestones and project status.
LinkedIn

Certificates

Certificates, awards, and professional milestones.

A selection of certificates and achievements from my studies and professional development.

Online Scholarship Competition (OSC) with AvitexSAFE-US Application Security and Protection (Copyright)First Place — Innovative Solution in the Digital Era, Mercu Buana UniversityHead of Education Division (Himsisfo), Mercu Buana UniversityLaboratory Assistant, Mercu Buana UniversityAchievement Award, OracleCourse Completion Award, Oracle

Your next big idea.
Let’s build it.

gerzhahp@gmail.com

I’m open to mobile, web, backend, and product engineering work, including long-term collaboration.

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