Fractional CTO & Engineering Leadership
The right tech leadership, exactly when you need it.
I’m Jürgen Karir, a Fractional CTO helping startups scale technology, build strong teams, and ship great software—without the full-time cost
Jürgen Karir
Fractional CTO | Engineering Leader
I've worked with hundreds of amazing people
CBC / Radio-Canada
Ericsson
Hyundai
La Presse
LCI Education
Loto Quebec
Lumenalta
National Bank of Canada
Netlift
Nurun
Yellow Pages
Helping Startups & Scale-Ups Build the Right Tech for Growth
I help startups and scale-ups build scalable tech, grow strong engineering teams, and launch innovative products — without the cost of a full-time CTO.
With years of hands-on experience leading engineering teams, I focus on practical, high-impact solutions that move your business forward. From architecting fast, reliable systems to integrating AI for new capabilities, I ensure technology is a growth driver — not a bottleneck.
Need strategic tech leadership, expert product development, or team mentorship? I’ll help you build and scale with confidence — without the overhead.
- Fractional CTO for Early-Stage Startups. I help founders make smart technical decisions early—building only what’s needed, avoiding tech debt, and staying focused on product and growth.
- MVP Strategy & Product Acceleration. From idea to launch, I guide you through building a lean, scalable MVP that gets to market fast and lays the groundwork for future growth.
- Engineering Team Setup & Execution. I help you hire right, set up lightweight processes, and coach your team to ship faster, stay aligned, and work like a high-performing unit.
- Mobile & Web App Development Leadership. Hands-on technical guidance to build fast, reliable, AI-enabled apps—so you can move quickly without cutting corners.
- Technology that drives growth. I help you make smart, lean tech decisions—so you avoid overbuilding, ship faster, and stay focused on what matters.
- Hands-on leadership from real experience. I’ve led engineering teams and built scalable systems from the ground up. I know what works—and what slows you down.
- More than advice—I execute. I roll up my sleeves and work with your team to solve problems, ship product, and get results.
- Built around your stage and goals. Every startup is different. I tailor my approach to where you are and what you need right now.
- Engineering teams led—guiding teams from startups to enterprises.
- 19
- Mobile apps shipped—built for performance, scalability, and seamless user experience.
- 17
- Web platforms launched—turning ideas into fully deployed, scalable products.
- 15
- Companies transformed—leveraging smarter tech decisions to accelerate growth
- 14
... His deep expertise in composable architecture, strategic thinking, and hands-on approach were instrumental in delivering a scalable, high-performing digital experience...
Let's build smarter, faster, better.
Launching an MVP, scaling fast, or optimizing your tech? Let's make it work.
- Montreal
Montreal, Quebec
Canada