CJ

Clément Janssens

Freelancer

Luxembourg, Luxembourg

About

I'm a full-stack developer and founder based in Luxembourg, currently building Rerun, a platform designed to make it easy to build 24/7 AI agents for any task. As CEO of Rerun, I focus on making autonomous agent creation accessible, allowing users to automate recurring work without needing deep technical expertise.

Beyond Rerun, I've founded Mailhub, a transactional email API offering customizable templates, internationalization, and reputation management for outbound email infrastructure. My freelance work spans full-stack development for companies like Hotelspeaker, bevopr, and ANTIDOTS Group, where I've built and maintained web platforms using technologies such as ReactJS, VueJS, .NET, Firebase, AWS, and MongoDB.

With a background in information systems management from Henallux and additional training in UX design from Université libre de Bruxelles, I combine technical development skills with a product and user-experience mindset. My experience ranges from building marketplace platforms and internal tools to architecting APIs and deploying cloud infrastructure, and I now channel this expertise into building AI agent tooling with Rerun.

Skills

Agent DesignWorkflow AutomationIntegrations & APIsNo-code Automation

Languages

FrenchEnglish

Your first agent is
three minutes away

Start for free
Rerun

Run your work on agents. Build them, watch them work, and keep your eyes on everything.

© 2026 Rerun. All rights reserved.