Hey there, I'm Valentin Chmara

I'm the Co-founder and CTO of Qleer, where I lead the development of AI software for the Testing, Inspection & Certification industry. I'm currently focused full-time on Qleer and do not accept client work or job opportunities.

My PRs on GitHub Full-time CTO at Qleer

About Me

I build practical software at the intersection of AI, product, and engineering. Today, my focus is Qleer: helping inspection and certification teams analyze technical files and produce conformity reports faster. Outside Qleer, I contribute to open source and write about the products and lessons that shaped my journey.

Work Experience

2026 - Present

2021 - 2026

2022 - 2024

2018 - 2021

Latest Articles

Some of my recent thoughts

Jan 3, 2026

The Mental Health Toll of Entrepreneurship - My 2025 Recap

2024 was my revenue record year, but it nearly broke me. 2025 was the revelation—building my own businesses despite the mental chaos. Here's my raw journey through burnout, near-quits, and finding purpose again.

Aug 27, 2025

How Telegram-Finder hit 1,000+ users with €0 ads — and what a 3-week product setback taught us

From a real founder pain to 1,300 users on pure SEO. The playbook, the growth curve, and an honest look at the dip when we chose stability over rushing a fix.

Jul 11, 2025

How I built a multi-agent AI content pipeline (with OpenAI Agents): smarter, faster, more strategic content creation

Discover how a multi-agent AI system—complete with profile, trend, ideation, planning, writing, and CCO review agents—revolutionized my weekly content workflow. Learn the business impact, the architecture, and why human oversight remains vital.

Extremely serious work, within deadlines. Valentin is attentive, proactive, and always maintains a positive attitude. I recommend him for your projects.

Valentin Guillemain

Founder at E3GO

Valentin is the most hard working and talented developer I’ve ever worked with! He is fast and can bring to reality everything you’re wishing for. He is truly one of the best in his domain. Thank you, Valentin!!

Lana Denina

Founder of The Mona Lana

I am delighted to recommend Valentin for his application development expertise. His responsiveness, transparent communication, and attention to quality make him a passionate and reliable professional.

Florent Ferrante

Founder of Cabinet Ferrante

Valentin stood out as an extremely serious, dynamic, and reactive professional ✅. He is overflowing with innovative ideas and resources, which greatly contributed to the success of the projects we executed together 🎉

Julien Pierre

Founder of Meta-sense

Frequently Asked Questions

A little more about my current work and interests.