Patrick Lef
Founder, CPO at QA.tech
Stockholm, Stockholm County, Sweden
Summary
👤
Senior🎓
Top SchoolPatrick Lef is a founder and product leader with 17 years of experience building AI-infused consumer and B2B products, currently scaling QA.tech to deliver the world's first autonomous QA engineer for web apps. He has a strong track record leading product and technology teams—formerly Head of Product at memmo.me and CTO at Collabs, a startup acquired for ~54.5M SEK—and has repeatedly shipped growth-stage platforms used by millions. His background blends hands-on engineering, AI-driven automation, and marketplace experience, from video apps with 500k users to AI moderation and lead-generation platforms. Based in Stockholm, he brings a pragmatic founder’s mindset to product-first engineering and an uncanny knack for automating manual workflows end-to-end.
18 years of coding experience
13 years of employment as a software developer
Natur/natur, Natur/natur at Blackebergs Gymnasium
Swedish, English
Stackoverflow
1reputation
0reached
0answers
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Github Skills (62)
text-to-speech9
reinforcement-learning8
chatgpt7
diffusion-models7
stable-diffusion7
rest7
ai7
actionmailer7
fine-tuning7
agent7
python7
monorepo6
azure6
openai6
openapi6
Programming languages (9)
Github contributions (5)
PatrickLef/hamsterpaj
Oct 2009 - Dec 2009
Contributions:37 commits in 2 months
Rojk/hamsterpaj
Sep 2008 - Mar 2009
Contributions:381 commits in 6 months
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