SUTOLIMIN WIDJAJA
I am a Software Engineer with a passion for systems architecture and backend development. I enjoy solving algorithmic problems and building scalable, real-time applications.
About
I am a Software Engineer with a passion for systems architecture and backend development. I enjoy solving algorithmic problems and building scalable, real-time applications. I thrive on delivering large-scale, high-performance software systems and enjoy turning complex ideas into reliable, maintainable code.
I have hands-on experience with Next.js, Python, PostgreSQL, Socket.IO, Docker, and cloud tooling, and I stay curious about new technologies to improve system design and developer productivity.
- 1 year's experience
- Joined March 2026
Industry experience
- Software & Internet
- Professional Services
- Education
Work experience
Engineered a full-stack messaging application supporting 100+ concurrent users with real-time bidirectional communication and threaded conversations using Next.js, PostgreSQL, and Socket.IO. Designed scalable PostgreSQL schema and containerized the stack with Docker for environment consistency, reducing onboarding time by 30%. Integrated Clerk for secure authentication and leveraged Cloudinary to optimize media delivery, improving upload scalability by 50%.
Developed a personal portfolio site with React.js, TypeScript, Tailwind CSS, and Vercel. Reduced deployment time by 80% via an automated CI/CD pipeline for zero-downtime updates and improved mobile usability scores from 60 to 98 on Google Lighthouse through responsive design and accessibility enhancements.
Education
Certifications and awards
Hire SUTOLIMIN WIDJAJA today
Post a job and invite SUTOLIMIN, or contact them directly. No hidden commission.