Created: Aug, 26 2023 | Updated: Oct, 10 2023 | Published: Aug, 26 2023

Status: published


M Wyndham Haryata Permana

Jakarta, Indonesia | +6288228664820 | | 


I am working as a Software Engineer with six years of experience and contributing to 6 apps available on PlayStore with 700k+ cumulative downloads and 4.0 average ratings. Along with one year of server-side experience using Golang and Serverless solutions via Google Cloud Platform, I help to deliver systems for two new business units with IDR 200 Million+ ($13,000+) revenue during the first month of release.

Technical Snapshot

  • Programming Languages: Kotlin, Java, Flutter/Dart, Golang, SQL (PostgreSQL, SQLite, BigQuery), Python, Ruby-on-Rails, Javascript, XML, HTML, CSS. 
  • Platform: Android (Mobile), Server-Side, Serverless (GCP).
  • Framework: MVI, MVVM, MVP, MVC, Echo, Gin, Rails, Bloc.
  • Network Protocol: SOAP, REST API, gRPC, MQTT.
  • Technologies: Jetpack Navigation, Jetpack Compose, Linux, MacOS, Shell Scripting (Bash & ZSH), Git (Gitlab, Github, BitBucket), CI/CD (GitlabCI, CircleCI), IaC (Terraform), Firebase (FCM, Auth, Crashlytics), OAuth2. 
  • Collaboration Tools: JIRA, Trello, Basecamp, Youtrack, Figma, OpsGenie, Confluence.
  • IDE: NeoVim, VSCode, Android Studio, GoLand, RubyMine, Jetbrains IDE.

Work Experience

Senior Software Engineer - Gravel Technology Inc

February 2021 - Present

  • Handle the development of 3 apps.
  • Help to create two new business units
  • Reach target revenue by the end of the first month of release
  • Helped to evolve and maintain 1 existing business unit.
  • Increase crash-free users from 95.1% to 99.3% For our most used apps. 
  • Implement CI/CD Pipeline from scratch that helps reduce build time by 250%. 
  • Gain cumulative downloads from 5k to 50k for Dulur apps
  • Gain cumulative downloads from 1k to 10k for Gravel apps
  • Gain a 4.0 Rating for Gravel Apps.

Android Engineer - Maukerja Indonesia

August 2020 - December 2020

  • Implement features for Maukerja App (500k downloads) and Ricebowl App (100k downloads).
  • Be part of the rewriting effort to make our apps adhere to atomic design pattern and aiming for server-side rendering.
  • Solve 60+ Support Ticket Issues.
  • Keep crash-free users around 99.3% to 99.5%.
  • Handle logistics for high-quality app translation in 3 Languages (Malay, English, and Chinese).

Android Developer - Freelance

May 2019 - August 2020

  • Create Mobile Apps for 2 Government Projects used for internal use. 
  • Researching three prototypes for Government Project Tender.

Mobile App Specialist - CIMB Niaga

February 2019 - May 2019

  • Develop a Mobile App Prototype.
  • Researching Authentication Process for Mobile Banking Apps.
  • Assess the risk and benefits of mobile apps using Flutter.

Native Android Programmer - Pasienia

August 2017 - December 2018

  • Reach a total of 5k+ downloads in Google Play Store.
  • Maintain a 4.2 rating across 182 reviews.
  • Hold 99.01% of crash-free users.
  • Directly engage with five healthcare support groups.

Product Portfolio

Written Articles


  • Universitas Gadjah Mada, Faculty of Electrical Engineering and Information Technology - Undergraduate Program


  • 3rd Winner - Kompas Gramedia hacKGen Hackathon, Yogyakarta 2018.
  • In-Country Finalist - CIMB 3D Conquest Coding Challenge, Singapore 2018.