Summary
Overview
Work History
Education
Skills
Websites
Interests
Timeline
Generic
Hendra Gunawan

Hendra Gunawan

Full stack Web Development
Tangerang

Summary

Experienced Ruby on Rails programmer with 14 years of developing robust Web Applications, Payment systems, SaaS, API Development and Trainer.


As a Full Stack developer, I can help both in Backend and Frontend development. Have specialty building API System on top of Rails, payments system, SaaS system, performance and security alongside with Ruby on Rails web development.


With my proven experiences and skill, I can help to build Web application, API System, Frontend, or RnD to drive with innovative solutions and improve the project outcomes.


Keep on staying updated on new technologies and methodologies. Seeking to contribute to a forward-thinking team dedicated to impactful web development.

Overview

15
15
years of professional experience
4
4
years of post-secondary education
2
2
Languages

Work History

Ruby on Rails Programmer

Ulven Tech
04.2025 - 06.2025
  • Support UlvenTech's clients to meet the project deadline.
  • Analyzed existing codebase, recommending improvements based on industry best practices.
  • Adding more features to existing system and improved reliability.
  • Consistently met project deadlines by effectively managing priorities and maintaining a strong work ethic.
  • Developed continuous integration tool to streamline deployment.
  • Participated in peer code reviews, providing constructive feedback aimed at improving the quality of team deliverables.

Full-Stack Ruby/Rails Programmer

GigWage
01.2019 - 01.2025
  • Become as part of GigWage solid team to build Web application for payment system for Gig Workers. It's not only for payment, but also for easier way to submit 1099 documents.
  • Build RESTFul API System with pretty well documentation
  • Working for Backend System, and make some integration with many 3rd Parties
  • Working on RSpec, so always deliver good quality code and tested with rspec for less maintenance code.
  • Working on frontend with some kinds stacks (NodeJS, Bootstrap) to make a good experience for End-Users and must be mobile compatible (responsive)
  • Contribute with many ideas, such as how the Infrastructure should be, concern about Security Issue and improving performance system and must be comply with PCI Compliance
  • Build the backend system so our internal team can access all data in the system.
  • Make a simple Report app using Retool, for pulling some important data that hosted in 3rd Party / Vendor
  • Help the team, especially for new one to fully understand how it works (as Lead developer)

Full-stack Ruby/Rails Programmer

ReadyFlight
01.2015 - 11.2023
  • I joined with this team since 2015 and has been working on this project for long time. At the beginning, I'm working as single developer on this project and down the road, build some small team to help maintain this web app with adding more features. It's not only build the code but have to decide the infrastructure of the system, take care the deployment and also some re-search for implement some new technology for reporting system. The system is designed to help the Aircraft Engineer to tracking their parts and workcard and many things related with Aircraft Maintenance system.
  • Design everything in the system but always consider with performance issue, and reliability
  • Become as leader of team with 2-3 junior developers, help the team to understand how to play with Ruby on Rails (previously PHP programmers) and guide the team to understand how the ReadyFlight works
  • Build Vector Diagram that using ReactJS so we can pick a SVG and add some markers to image to marked an issue/dent/scratch
  • Maintenance the system, and deployment to staging and production. Keep everything (Gems, Rails, and some integration) up-to-date for reliability.
  • Working on RSpec, make sure everything running properly as expected and adding a cucumber testing to make sure some heavy Javascript is working properly here

Ruby on Rails Programmer

Kangarootime
08.2019 - 11.2020
  • Joined as Ruby programmer in this team and rebuild the web app Kangarotime from scratch with existing team. Mostly I'm working on back-end, such as background job, Back Office, Admin Support, RESTFul API system and some Front End tasks that using ReactJS. Make sure the web application can work well both in Desktop and Mobile browsers.
  • Rails Programmer
  • Help the team to build features as requested
  • Add RSpec and help for QA testing
  • Help to build the Back-office system
  • Built API System, because the Front-End will need this API
  • Help the Front-End development suing ReactJS (for consumer uses)

Ruby on Rails Programmer

PT Domikado
10.2011 - 04.2013
  • Joined since the startup company begin to built Fancy E-Commerce with Unique Experience for Sellers and Buyers. We separate the system between Backend / API System and Front-End system, and make the application more scalability.
  • Build Backend and Frontend System
  • Extensively working on RESTful API System
  • Writing RSpec to test all the codes
  • Contribute with Research and Development to find the best way to build High Scalable and Reliable E-Commerce system
  • Help the team to build the Backoffice system for internal use
  • API integration with Payment Gateway

Junior RoR Programmer

PT WGS
03.2010 - 09.2011
  • Begin my career as Ruby on Rails developer. Here I join as part of team to build Web Applications. Begin using Ruby on Rails since Rails 2.x version.
  • Here I also learn how the best practices with building Web Application using RoR, deployment, Linux for development, and many more.
  • Learning how to work as solid team, building large and scalable Rails application system and also become comfortable to work in pressure and on-time.

Education

S1 - Computer Information Technology

LPKIA
Bandung, Indonesia
10.2006 - 10.2010

Skills

  • Ruby on Rails
  • Project Management
  • Hotwire & Stimulus
  • JavaScript
  • RESTFul API
  • Nodejs
  • ExpressJS
  • Bootstrap & TailwindCSS
  • SQL / Postgres / MySQL
  • NoSQL / MongoDB
  • Testing, Debugging and RSpec

Interests

Startup Enthusiast

Collaboration to build product

Timeline

Ruby on Rails Programmer

Ulven Tech
04.2025 - 06.2025

Ruby on Rails Programmer

Kangarootime
08.2019 - 11.2020

Full-Stack Ruby/Rails Programmer

GigWage
01.2019 - 01.2025

Full-stack Ruby/Rails Programmer

ReadyFlight
01.2015 - 11.2023

Ruby on Rails Programmer

PT Domikado
10.2011 - 04.2013

Junior RoR Programmer

PT WGS
03.2010 - 09.2011

S1 - Computer Information Technology

LPKIA
10.2006 - 10.2010

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Hendra GunawanFull stack Web Development