Engineering Manager and Full Stack TypeScript Engineer with 14+ years of experience leading teams (up to 12 engineers) and building high-performance web and mobile architectures. Experienced in cross-functional delivery, refactoring legacy systems, and establishing engineering standards for scalable, reliable enterprise solutions. Passionate about mentoring developers, improving system performance and scalability, and delivering secure cloud-based products—while maintaining predictable release processes and strong engineering SOPs aligned with regulatory requirements.

Robby Widyahartono

Engineering Manager and Full Stack TypeScript Engineer with 14+ years of experience leading teams (up to 12 engineers) and building high-performance web and mobile architectures. Experienced in cross-functional delivery, refactoring legacy systems, and establishing engineering standards for scalable, reliable enterprise solutions. Passionate about mentoring developers, improving system performance and scalability, and delivering secure cloud-based products—while maintaining predictable release processes and strong engineering SOPs aligned with regulatory requirements.

Available to hire

Engineering Manager and Full Stack TypeScript Engineer with 14+ years of experience leading teams (up to 12 engineers) and building high-performance web and mobile architectures. Experienced in cross-functional delivery, refactoring legacy systems, and establishing engineering standards for scalable, reliable enterprise solutions.

Passionate about mentoring developers, improving system performance and scalability, and delivering secure cloud-based products—while maintaining predictable release processes and strong engineering SOPs aligned with regulatory requirements.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Beginner
See more

Language

English
Advanced
Indonesian
Fluent

Work Experience

Engineering Manager | Principal Full Stack TypeScript Engineer at PT Komunal Sejahtera Indonesia
July 1, 2023 - July 1, 2026
Managed a team of 6 engineers while remaining hands-on in delivery and code review. Designed and built an internal rule engine and voucher system to cut costs by ~90%. Developed PerfReporting, a multi-organization dashboard to automate engineer velocity tracking and replace manual reporting for Product Managers. Increased automated test coverage from below 50% to 80%, established a biweekly deployment cadence backed by release plans, and implemented structured ceremonies and 1-on-1s for career growth. Standardized development process via Functional Specification Documents (FSDs) and post-mortems. Established engineering SOPs aligned with OJK compliance for secure fintech operations. Championed cross-service architectural patterns, reducing post-release bugs through direct refactoring and reviews. Engineered high-performance full-stack applications using React/Angular and NestJS microservices on GCP.
Engineering Manager at APAC PT Sembilan Puluh Enam Derajat
November 1, 2021 - July 1, 2023
Managed 12 team members across two cross-functional squads (Payment & Post-Order), including a Tech Lead and engineers per squad. Led development of a web application using Remix.run to improve user experience and transaction success rates across APAC markets. Optimized deployment pipelines using GitLab CI/CD to Vercel, streamlining release cycles and reducing time-to-production.
Tech Lead at APAC PT Sembilan Puluh Enam Derajat
May 1, 2021 - October 1, 2021
Led a team of 5 engineers in the Payment & Checkout squad. Integrated payment gateways across 7 APAC markets (Indonesia, Singapore, Hong Kong, Taiwan, Thailand, South Korea, Japan). Refactored a legacy React Native codebase to address technical debt and improve maintainability and app performance. Architected and built web services using NestJS with deployments via GitLab CI/CD and AWS CloudFormation.
Front End Engineer at PT Dynamo Media Network
July 1, 2018 - April 1, 2021
Built cross-platform mobile applications using React Native for iOS and Android. Created responsive web applications with React to improve user experience. Integrated GraphQL APIs across web and mobile. Helped build the Kumparan UI Kit / Design System to ensure visual consistency and reduce frontend development time.
Freelance Full Stack TypeScript Engineer at Self-employed
May 1, 2017 - Present
Delivered end-to-end web, mobile, and backend projects for startups to established companies across Indonesia and Southeast Asia. Led teams and owned critical modules and production bug fixes for maritime logistics SaaS (Shipeace/Docupeace) including email, summary, AI-related summary, email pinning, and pagination features. Built a dropship aggregator API layer using NestJS plus an internal admin site using Remix. Delivered 10+ client projects using React, Remix, Qwik, and React Native and consistently received 5-star client reviews.
Fullstack Mobile Engineer at PT Karir Komunika Pratama
May 1, 2016 - June 1, 2018
Built a cross-platform mobile application for iOS and Android from scratch using React Native. Designed and implemented RESTful web service APIs using Ruby on Rails to support mobile functionality. Collaborated in agile iterations to optimize job-matching search features and improve overall user experience.
Fullstack Mobile App Developer at PT Niaga Prima Paramitra
February 1, 2013 - April 1, 2016
Developed hybrid mobile applications for multiple platforms using Ionic Framework (iOS, Android, Blackberry10, Windows Phone 8). Designed and implemented RESTful web services using Spring Framework to improve backend efficiency and enable seamless mobile-backend integration. Received Best Employee of 2014 for outstanding performance and contribution.
Implementation Consultant at PT Indodev Niaga Internet
February 1, 2012 - February 1, 2013
Maintained and optimized an enterprise HRIS platform (DataOn), resolving complex technical bottlenecks. Mentored junior programmers and supported system performance and reliability improvements.

Education

Master of Innovation System and Technology (Startup Technology) at Institut Teknologi Sepuluh Nopember (ITS)
March 1, 2024 - August 1, 2025
Bachelor of Engineering, Information Technology at Universitas Atma Jaya Yogyakarta
August 1, 2007 - November 1, 2011

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Computers & Electronics, Media & Entertainment, Professional Services, Telecommunications, Transportation & Logistics

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Beginner
See more

Hire a Full Stack Developer

We have the best full stack developer experts on Twine. Hire a full stack developer in Salatiga today.