Marcus Tettmar

Headline

Founder, Developer & Problem Solver | Turning Ideas Into Scalable Products

About

I’m a software developer and entrepreneur with over 25 years’ experience building tools that save people time. I co-founded Untied.io in 2018, the UK’s leading personal tax app for self-assessment and MTD. Before that I created Macro Scheduler, and more recently I’ve launched SaaS platforms including Classta and PlaylistMiner. My focus is on automation, AI, and building products that solve real problems.

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Joined

August 27, 2025