# Jonathan Widjaja > Lead Software Engineer Location: Denver Metropolitan Area, United States Profile: https://flows.cv/jonathanwidjaja I'm a lead software engineer with an appetite for hard problems and being a multiplier in engineering orgs. Happy to connect for engineering opportunities, now or in the future. ## Work Experience ### Senior Software Engineer @ fiveonefour Jan 2024 – Present | Denver, Colorado, United States Fourth engineer. All things data. ### Lead Software Engineer @ Salesforce Jan 2022 – Jan 2023 | Denver, Colorado, United States • Decreased daily development setup time from 1+ hour to 5 minutes for each of Salesforce’s 3500+ engineers using containerized dev environments • Technical lead for VS Code extensions which doubled the adoption rate of VS Code in Salesforce & guided developers through the complexity of Salesforce microservices • Led monthly IDE Champions meetings where we meet with customers to hear their pain points & discuss potential solutions • Mentored junior engineers on VS Code development & on instrumenting our products ### Staff Software Engineer @ Skillshare Jan 2021 – Jan 2022 | Denver, Colorado, United States • Developer for Memberships microservice, a NestJS app that provides GraphQL payment APIs integrated with Stripe & dlocal • Technical lead for new payment solutions in India & Latin America which increased subscriptions by 400% • Mentored senior engineers as an onboarding buddy & on API development ### Lead Software Engineer @ Salesforce Jan 2018 – Jan 2020 | Bellevue, Washington, United States • Developer for Salesforce Code Builder, a web-based development environment fully optimized for Salesforce development • Mentored junior engineers as an onboarding buddy ### Senior Software Engineer @ Salesforce Jan 2015 – Jan 2018 | San Francisco, California • Technical lead for the Apex Replay Debugger, a lightweight debugger that simulates a debugger session post-mortem using Salesforce debug logs • Developer for Salesforce IDE on VS Code, a collection of tools for developing on the Salesforce platform in the lightweight, extensible VS Code editor • Mentored senior & junior engineers on VS Code development • Created Jenkins CI/CD pipelines for our VS Code extensions and later onboarded a DevOps engineer to the team ### Software Development Engineer in Test @ Salesforce Jan 2014 – Jan 2015 | San Francisco, California • Developer for the Apex Debugger, the first ever multi-tenant aware debugger for the Salesforce platform • Quality assurance on key functionalities (editing, find-and-replace, completion, etc) to the Developer Console, the built-in online IDE for Salesforce ### Software Development Engineer in Test @ Akamai Technologies Jan 2012 – Jan 2014 | San Francisco, California, United States • Quality assurance on Akamai’s Content Delivery Network which runs on 325K+ servers and handles 15 - 30% of the world’s daily web traffic • Develop automated test framework for new technologies such as SPDY and HTTP/2.0 ### Software Development Engineer in Test @ Microsoft Jan 2011 – Jan 2012 | Mountain View, California, United States • Contract with HCL America for functional & automated testing of Windows 8 Bing apps • Participated in the occasional Poker, Pictionary, and Rock Band sessions ### Software System Test Intern @ Honeywell Jan 2011 – Jan 2011 | Redmond, Washington, United States • Quality assurance on a hardware centric team whose goal is to dominate automation systems in all kinds of buildings • Created automation suites for BACtalk, which gives the operator control over their buildings' air handling units, heat pumps, air conditioning, sensors, floor plans, and many more • Founded and documented the virtual test lab environment ### Software Quality Assurance Intern @ Mindbloom - A Welltok Company Jan 2010 – Jan 2010 | Seattle, Washington, United States • Quality assurance in a lively startup testing functional and usability on web and mobile apps to motivate users to take charge of their lives • Automated tests with Selenium • Logged a ridiculous amount of bugs which made me strangely happy ## Education ### Computer Science University of Washington Jan 2009 – Jan 2011 ## Contact & Social - LinkedIn: https://linkedin.com/in/smileforwidjaja --- Source: https://flows.cv/jonathanwidjaja JSON Resume: https://flows.cv/jonathanwidjaja/resume.json Last updated: 2026-03-22