Open to opportunities

Hann Zern

@hannzern

Message

I build scalable web, mobile, backend, and Web3 platforms from the ground up.

Malaysia

Message

At Davos Asia Capital, I build Nuxt.js, Flutter, and Web3 systems, including backoffice tools for 40+ users with real-time gas calculations, automated smart contract payouts, and wallet security. I also recovered the Niffty.com marketplace after a two-year vendor failure, refactoring core P2P hiring workflows to support a full launch within three months.

I lead through hands-on execution: establishing Flutter standards, streamlining RPC/API integrations across 10+ projects, and modernizing mobile CI/CD with Fastlane, Jenkins, and Gerrit. Earlier, I built React Native libraries and native iOS and Android applications, while developing backend products with Ruby on Rails.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Davos Asia Capital Sdn Bhd

May 2021 - Present (5 years 5 months)

Architected company-wide Flutter standards utilizing the BloC pattern and built a centralized TypeScript library within a monorepo microservices setup to streamline RPC/API integrations across 10+ projects. Drove key Web3 initiatives by engineering a Nuxt.js ecosystem integrated with Go Ethereum (Geth), delivering backoffice management tools for 40+ users complete with real-time gas fee calculatio

Flutter BLoC TypeScript Microservices Nuxt.Js Go Ethereum Web3 CI CD Fastlane Jenkins Gerrit

Mobile Application Developer

Zchwantech Sdn Bhd

Apr 2020 - May 2021 (1 year 1 month)

Was in charge of building multiple native libraries using Swift and Java to use in React Native applications. Was also involved in native iOS (Swift) & native Android (Kotlin) mobile applications development.

Mobile Application Developer

Red Dragon Technology

Apr 2019 - Apr 2020 (1 year)

Building mobile applications using React Native in a fast paced working environment catered to multiple different industries. Learning and also getting involved with back end development along the way.

Back End Developer (Internship)

bumbung.co

Dec 2018 - Mar 2019 (3 months)

Given the opportunity to work closely with experienced developers on the back-end of the company’s website, fixing bugs and making upgrades, and also the creation of a new product from scratch alongside with the development team using Ruby on Rails.