Josef Karthauser
Chief Technical Officer And Founder at Truespeed Communications Ltd
Bath, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolJosef Karthauser is a seasoned technology leader and founder with over a decade building infrastructure-heavy products, currently serving as CTO and co-founder of TrueSpeed, a full-fibre broadband company that raised £175M. He combines deep systems and networking expertise—honed across roles from FreeBSD source control steward to architecting global services and ray-tracing clusters—with hands-on product delivery and team leadership. Josef’s background spans startups and engineering leadership positions where he implemented CI/CD, distributed version control, large-scale build systems and multi-threaded network optimisations. He also brings formal research training, holding a PhD in theoretical particle physics and cosmology, which informs his analytical approach to complex technical problems. A long-time open-source contributor and former FreeBSD core project maintainer, he has experience managing large, asynchronous developer communities and running governance processes. Based in Bath, UK, Josef pairs entrepreneurial grit with low-level technical depth to turn infrastructure challenges into commercially scalable services.
10 years of coding experience
26 years of employment as a software developer
BSc Computer Science and Artificial Intelligence (1st class honours), BSc Computer Science and Artificial Intelligence (1st class honours) at School of Computing and Cognitive Science, University of SussexPhD Theoretical Particle Physics and Cosmology, PhD Theoretical Particle Physics and Cosmology at Centre for Astronomy and Particle Physics, University of SussexA-Levels Maths (A) Advanced Maths (A) Physics (B) Music (D), A-Levels Maths (A) Advanced Maths (A) Physics (B) Music (D) at Cricklade College, Andover, Hampshire
English
Stackoverflow
49reputation
3kreached
4answers
2questions
Github Skills (85)
vote10
inertiajs10
laravel9
laravel-package9
voyager8
slug8
slugify8
ascii8
php8
storefront8
tdd8
normalization8
backpack7
serve7
artisan7
Programming languages (4)
Github contributions (5)
iammikek/laravel-served
Sep 2020 - Oct 2020
Contributions:2 PRs, 8 pushes, 9 branches in 19 days
iammikek/blueprint-helper
Feb 2025 - Feb 2025
Helper Package for laravel Blueprint
Contributions:9 releases, 13 pushes, 1 branch in 8 days
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