Yunarta Kartawahyudi

Hands-on technical lead for Singtel's cloud delivery platform and CI/CD automation.
Phase 1 focused on cloud and pipeline delivery; phase 2 focused on tooling consolidation and procurement to expand self-service and reduce operational toil.

- Built Terraform-based self-service provisioning for Bitbucket and Bamboo, generating about 100 compliant pipelines in under 15 minutes and shifting se

Owned end-to-end delivery of the MySingtel rewards and marketing notification segments as a one-person mobile stream, shipping a React Native app with hands-on focus on Android, iOS, release readiness, and clean handoff to the next team.

- Shipped Android and iOS builds in under six months while learning React Native on the job, using RxKotlin, RxSwift, and dependency injection to keep both platf

Led OCBC Business Banking mobile delivery as hands-on lead for a 5-engineer core team, while supporting about 10 Consumer Banking engineers on shared branching, review, and test practices.

- Replaced employee-PC builds with automated mobile CI/CD using Gitea, Bitbucket, Jenkins, Artifactory, SonarQube, and Coverity, shifting the team to committed-source builds with quality and security gates.
- A

Lead Mobile Software Engineer (Mobile Application R&D) for V-Cube's enterprise chat app, driving a hands-on mobile tech refresh across iOS and Android.

- Re-architected the apps with VIPER, caching, and object pooling to make contact lists for ~20k users and conversation loading move from 3–5 minutes to seconds.
- Set up Bitbucket/Jenkins/Fastlane CI/CD for the mobile and Chrome chat clients, giv

Mobile Lead Developer for a digital agency partner, leading 3 mobile and 3 backend engineers across JWT, Dove, ST Engineering, Meiji, and Philip Morris mobile, AR, and ERP delivery.

- Delivered JWT, Singapore Indian Heritage Centre AR Journey, Dove, ST Engineering, Meiji, and Philip Morris by translating campaign briefs into feasible mobile solutions with account managers, creative teams, and bac

Senior Android/Java engineer on Elephanti's location-based merchant rewards and discount app, brought in to refactor a legacy codebase, improve performance, and standardize UI consistency across screens.

- Took over an existing Android merchant rewards and discount app with a legacy codebase and incrementally refactored it to improve performance and smoothness.
- Introduced clearer app arch

Technical Manager for SoftTone Pte Ltd in Singapore (Jul-Nov 2012), leading a cross-platform karaoke-style song-guessing game on Android, iOS, and Windows and the FMOD/DSP voice-effect work behind its signature audio experience.

- Managed cross-platform delivery of a karaoke-style music gamification game, coordinating Android, iOS, and Windows builds and integrating an affiliate media upsell flow

Technical Director leading a four-person Android/iOS mobile team at PT Bounche Indonesia in Jakarta, helping the agency stand up its mobile delivery capability and ship campaign apps such as BASF Product Catalog, Makko comic reader, Samsung Business Canvas, Kiranti Femalicous, and Samsung Galaxy 3D AR.

- Set up and mentored a four-person mobile team, coaching Java developers into mobile and bring

Senior Software Engineer building ringEmail, a BlackBerry-style J2ME/Symbian push mail client for Clearhub in Singapore, with a custom UI engine and desktop simulator tooling for feature phones.

- Owned the ringEmail J2ME and Symbian push mail client, building a custom cross-device UI engine and rich messaging features so feature phones could get a BlackBerry-style push mail experience.
- Created

Technical Director at PT. Shinkirou, a self-established Jakarta software house that enabled Clearhub's cross-platform ringEmail push mail and automated email/contact onboarding across desktop tools.

- Ran a self-established software house, coordinating a small contractor network and setting delivery standards for Clearhub mobile and desktop work.
- Developed ringEmail push mail clients for early

Technical Director at PT. Nu Media, a self-established software house delivering ASP.NET hotel-booking eCommerce and PHP eCommerce websites for startup customers.

- Ran a self-established software house, handling client engagements from requirements scoping through deployment.
- Delivered ASP.NET hotel-booking eCommerce websites for startup customers.
- Built Bursa Komputer PHP eCommerce website

Technical Director at PT. Cleon System in Indonesia, delivering a Windows Wi-Fi and roaming dial-up dialer for MGP Networks Pte Ltd.

- Managed and directed resources to deliver a Windows API application that masked Wi-Fi SSIDs and eased roaming dial-up.
- Built the native Windows utility with Windows API and Win32 techniques for the dialer implementation.

Delivered WAP Based Flight Ticket Booking, Lufthansa Customer Newsletter Service, and Lufthansa Internet Live Auction with JSP/Servlet, PHP, and MySQL.
- Enabled PT inTouch Indonesia’s WAP Based Flight Ticket Booking for Nokia N 7110 by building the JSP/Servlet backend and connecting it to Abacus Ticketing System.
- Delivered Lufthansa Customer Newsletter Service and the profile/newsletter broadca

Pursued a Bachelor of Science in Information Technology at BINUS University from 1997 to 2002.