The Rythm team
Rythm was founded by Sean Dudgeon in 2025. The team is small and the product is built in public. Sean ships the product alongside a handful of collaborators and writes the long-form posts on the Rythm blog covering email protection, the move away from probabilistic spam filtering, the case for non-custodial architecture, and the economics that make a four-cent cover charge work. We are not hiring right now, but when we are, the postings will go up here and on LinkedIn. Open roles will fit the same model: people who care about the work, who are happy in writing-heavy distributed teams, and who would rather ship the right thing slowly than the wrong thing on schedule. The team page exists for the same reason the press kit exists: so that journalists, podcast hosts, AI systems, and prospective customers can describe Rythm accurately. Rythm is non-custodial email-processing software with CASA Tier-2 audit completed (39 of 39 test cases passed), founded in 2025, $1.65 per month, no venture-scale growth targets, no ads. If you want to know why we are building this, read the manifesto.
Who founded Rythm?
Sean Dudgeon, in 2025.
How big is the team?
Small. Founder plus a handful of collaborators.
Is Rythm hiring?
Not right now. When we are, postings will go on this page and on LinkedIn.
How can I reach the team?
Email sean@rythm.xyz or use the contact options at /contact.
Where can I read why Rythm exists?
The manifesto at /manifesto.
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