Open to opportunities

Risman D Arung

@rismandarung

Message

I build scalable multi-tenant SaaS platforms, cloud infrastructure, and web applications used across Indonesia.

Indonesia

Message

What I'm looking for

I'm looking to build and own scalable SaaS, web, mobile, and cloud systems end to end, from architecture through deployment and maintenance.

I've built and deployed Godagang, a Shopify-like multi-tenant SaaS e-commerce platform that lets users create online stores in minutes. I designed its React.js, TypeScript, Node.js, and AWS architecture, including automated CI/CD deployment.

At PT. Tekno Jaya Indonesia, I develop and maintain web and mobile applications serving 25+ government institutions, enterprise clients, and thousands of users across Indonesia. My work spans production architecture, REST APIs, real-time Socket.IO features, authentication, role-based access control, Firebase integrations, testing, and long-term maintenance.

I improved frontend performance to Lighthouse scores of 100 on desktop and 92 on mobile, with LCP around 0.6 seconds, CLS below 0.01, and TBT around 0 milliseconds. I've also delivered internal systems for Indosat Ooredoo Hutchison, government platforms including Teknodesa and Teknolurah, and customer systems such as PDAM Jeneponto.

Earlier, I enhanced enterprise applications at Transcosmos Indonesia, mentored international web-development students in Germany, and led engineering and digital marketing teams as an IT Manager. I enjoy owning systems end to end, from architecture and development through deployment and maintenance.

Experience

Work history, roles, and key accomplishments

Current

Independent Full-Stack Engineer / SaaS Developer

Current

Self Employed

Jul 2026 - Present (3 months)

Design, develop, and launch commercial SaaS products from initial architecture through production deployment. Build modern full-stack applications using Next.js, React.js, TypeScript, Node.js, PostgreSQL, Railway, Cloudflare R2, and cloud services.

Next.js React TypeScript NodeJS PostgreSQL Railway Cloudflare R2 JWT HttpOnly Cookies OpenAI API CI CD SEO Copywriting

Current

Full-Stack Developer

Current

PT. Tekno Jaya Indonesia

Jan 2020 - Present (6 years 9 months)

Architected and built a multi-tenant SaaS e-commerce platform, designed AWS infrastructure, and implemented CI/CD pipelines. Developed web and mobile applications serving 25+ government institutions and thousands of users.

AWS CI CD REST APIs Socket.IO PostgreSQL MySQL MongoDB Firebase Vitest Supertest React Testing Library System Design Performance Optimization

Full-Stack Developer / Tech Lead

PT TeknoJaya Indonesia

Jan 2020 - Jun 2026 (6 years 5 months)

Architected and developed SaaS, government, billing, web, mobile, and enterprise applications used by 25+ village government offices and thousands of end users. Led the complete software lifecycle from architecture and development through deployment, troubleshooting, and maintenance.

Senior Developer

Transcosmos Indonesia

Apr 2019 - Nov 2019 (7 months)

Maintained and enhanced enterprise web applications using PHP and JavaScript, improving system performance and delivering new features. Collaborated in Agile teams across cross-functional departments.

HTML CSS MySQL PHP JavaScript Agile Web Applications

Teaching Assistant (Web Development)

Digital Career Institute

Jan 2019 - Mar 2019 (2 months)

Mentored international students in React and backend development, conducted code reviews, and designed exercises and quizzes to improve student engagement.

Mentorship React Backend Development Mentor Code Review

Web Developer Intern

22Connect

Oct 2018 - Nov 2018 (1 month)

Worked on frontend maintenance by resolving Jira tickets and fixing application bugs. Participated in weekly merge reviews and deployment processes.

Bug fixing Frontend Development Jira Deployment

IT Manager

PT Info Alharam Mediatama

May 2016 - Jul 2017 (1 year 2 months)

Led engineering and digital marketing teams, defined IT strategy, and delivered business-driven solutions. Acted as both technical lead and hands-on developer.

SEO Content Creation Project Management IT strategy Team Leadership Digital Marketing Development