The Team

The people behind the world's most trusted messaging infrastructure.

For over 25 years, ProcessOne has brought together a rare concentration of real-time messaging expertise. We built ejabberd, scaled it for WhatsApp, Nintendo, and the BBC, and we continue to push the boundaries of what messaging infrastructure can do.

1999 Founded in Paris
2B+ Users served
25+ Years of expertise
100% Open source core
Mickaël Rémond, Founder and CEO of ProcessOne

Founder & CEO

Mickaël Rémond

Mickaël Rémond founded ProcessOne with a single conviction: critical communication infrastructure belongs to the people who depend on it, not the vendors who rent it. His career has been shaped by a deep passion for distributed systems and open-source software, and by a belief that real-time messaging at scale requires the right technical foundations built from the ground up.

Under his leadership, ProcessOne built ejabberd, the open-source XMPP server that powered WhatsApp's growth from zero to two billion users. The same technology went on to serve Riot Games, the BBC, Nintendo, and hundreds of other organizations worldwide. Mickaël has worked directly with many of these clients, helping them architect messaging systems that combine massive scale with security, resilience, and operational control.

Committed to open and interoperable messaging standards, Mickaël has been an active contributor to the XMPP Standards Foundation, shaping the protocols that give organizations the freedom to own their communications stack. His long-term perspective on technology choices, most notably the early adoption of Erlang for fault-tolerant messaging, has proven consistently right across more than two decades of industry change.

Beyond engineering, Mickaël is a writer and speaker. He shares his vision for the future of decentralized communication at global technology conferences, and explores speculative futures in short stories and novels where deep technical knowledge meets imaginative storytelling.

A team of instant messaging veterans.

Behind ProcessOne stands a team of engineers with years, and in many cases decades, of hands-on experience in real-time communication and large-scale messaging. We have built and maintained platforms that serve millions of users every day. We thrive on solving complex infrastructure challenges, optimizing performance under load, and delivering messaging systems that organizations can stake their reputation on.

  • Deep expertise across XMPP, MQTT, SIP, and Matrix protocols
  • Proven track record scaling to 1M to 1B+ concurrent users
  • Erlang and OTP specialists, the runtime built for systems that cannot fail
  • Direct experience deploying on-premise, private cloud, and hybrid architectures
  • Active contributors to open messaging standards and the open-source community

We are passionate about technology that endures. When you work with ProcessOne, you are working with the team that built the foundation and knows every layer of it.

How we approach our work.

Open by conviction

We believe communication tools must be federated and open to ensure their longevity, adaptability, and accessibility. Closed, proprietary systems limit innovation and create dependencies that weaken the ecosystem over time. Every architectural decision we make reflects that conviction.

Built for the long run

We do not chase technology trends that lack real-world validation. We chose Erlang in 1999 because it was the best tool for scalable, fault-tolerant messaging. More than 25 years later, that decision is still paying dividends. We invest in foundations, not fashions.

Sovereignty as a feature

Your messaging infrastructure should answer to you, not to a hyperscaler, not to a vendor's terms of service, and not to a startup's runway. We build systems that organizations can deploy, audit, and control entirely on their own terms.

ProcessOne is privately owned and self-funded, built entirely on the trust of our customers since 1999. No outside investors, no acquisition pressure, no pivot risk.

Our priorities have always been, and will remain, aligned with the people who depend on our software.

Want to work with us?

Whether you are evaluating ejabberd for a new project, considering the Business Edition, or looking for a team to design and deploy messaging infrastructure at scale, we would like to hear from you.

ProcessOne, Paris, France