About Us

Our Story

Zercle Technology Co., Ltd. is a software studio based in Khon Kaen, Thailand, founded around 2012. From the start, our focus has been practical engineering: building reliable backend systems, infrastructure, and web software for real-world use.

We are a small, hands-on team that values clear thinking over hype. Most of our work sits close to the metal — services written in Go, front-ends in JavaScript, and infrastructure running on Linux — and we lean on tools like Cloudflare to keep the operational surface area small.

How we got here

• Early years: Building the foundation by tackling diverse backend projects and learning what makes software truly maintainable.
• Growth and consolidation: Focusing on our core stack — Go and Linux — while refining our approach to infrastructure and DevOps.
• Refinement: Doubling down on simplicity and reliability, moving away from complex toolchains in favor of clear, interoperable patterns.
• Today: Continuing to operate as a focused studio, helping clients build systems that perform reliably over the long term.

What We Do

We provide practical, end-to-end engineering solutions for companies looking to build durable systems.

• Custom software — purpose-built systems designed around the problem you actually need to solve.
• Backends in Go & JavaScript — services, APIs, and workers built for throughput, observability, and long-term maintainability.
• Infrastructure & DevOps — Linux servers, containerized workloads, CI/CD pipelines, and zero-trust networking.
• IT consultancy — short, focused engagements to review architecture, untangle legacy systems, or unblock a team.

Engineering Principles

Reliability over feature velocity

We prioritize stable, predictable system operation over rushing to release new features that may accumulate debt.

Simplicity earns its complexity

Every complex solution must demonstrate clear value; we prefer the simplest path that meets the requirement.

Observability is a feature

We build systems with built-in instrumentation so that we understand what is happening in production at any moment.

We build it, we run it

Our team follows the entire lifecycle of our software, from design and implementation to deployment and maintenance.

Prefer protocols and formats over platforms

We rely on open standards, standard protocols, and vendor-agnostic formats to ensure our work remains portable and interoperable.

Open Source & Community

We believe in the power of open standards and community-led tooling. Our team maintains a presence on GitHub at https://github.com/zercle, where we share the utilities and patterns that support our work.

Khon Kaen

Being based in Khon Kaen allows us to focus deeply on our craft outside the pressures of a capital city. This location provides us with a stable, remote-friendly environment that supports focused development and clear communication in English, ensuring we stay aligned with our clients regardless of where they operate.

Our Team

We are a small group of senior backend, frontend, and infrastructure engineers, working together from Khon Kaen. The team is collaborative and cross-functional: the same people who design the system are the ones who deploy it, observe it, and keep it running.

We are growing selectively and always interested in talking to engineers who care about doing the work properly.

Our Values

• Reliability first. Software that runs predictably for years is more valuable than software that demos well for a week.
• Simplicity over cleverness. The simplest design that meets the requirement is usually the right one. Complexity has to earn its place.
• Ownership. We build it, we run it, we fix it. No throw-it-over-the-wall handoffs.
• Open standards. We prefer boring, interoperable technology — protocols, formats, and runtimes that outlive any single vendor.