We build systems that work.
S39 Labs is a software and systems engineering studio based in Sri Lanka. We design, build, and deploy complete solutions across web platforms, embedded hardware, and cloud infrastructure. No outsourcing, no shortcuts. Every project is handled directly by our engineering team from start to finish.
We work with businesses and organizations that need reliable technology built to their exact requirements. Whether it's a payment-integrated web app, a custom IoT device, or a backend system handling thousands of transactions, we deliver production-ready solutions that hold up under real-world conditions.
Shaveen Udayanga
Shaveen founded S39 Labs to bridge the gap between complex engineering and practical business needs. With hands-on experience across full-stack web development, embedded systems, and cloud architecture, he leads every project with a focus on clean implementation and measurable results.
His background spans building payment platforms, IoT firmware, distributed backend systems, business digitization, business process automation, and custom digital solutions for clients across multiple industries. He believes the best engineering is invisible to the end user and just works.
With a foundation in computer science, mathematics, physics, and statistics, his research interests include evolutionary computing, constraint-based systems, and air defense systems.
Connect on LinkedInFull-Stack Systems
End-to-end development from database design to frontend delivery. We handle the full lifecycle so you ship faster with fewer moving parts.
Embedded & IoT
Custom firmware and hardware integration for real-world devices. Reliable, power-efficient solutions built for long-term deployment.
Web Platforms & APIs
High-performance web applications, payment integrations, and backend infrastructure built for speed and security.