Public executive network

Vetted fractional executive profiles.

Public profiles show approved executives only. Contact details stay private until a qualified, mutual introduction.

Verified CTOAvailable now

Stefan Walcz

Fractional CTO for mid-sized companies and scale-ups: technical direction, delivery and vendors steered to outcomes, AI put into operations. Ex-VP Products.

Mannheim, DE · Europe/Berlin

Technology strategy and architectureVendor steering and make-or-buyCore system implementationDelivery leadership at scale

Review profile

Verified CTOAvailable now

Dionysis Karamitopoulos

Fractional CTO | Security Governance, GRC & Cyber Risk

Thessaloniki, GR · Europe/Athens

GRCCyber RiskSecurity GovernanceSecurity Architecture

Review profile

Verified CTOAvailable now

Helkyn Coello Costa

Fractional CTO / Chief AI Officer taking enterprise B2B software from AI pilots to production — governance, cost control, shipped results

Munich, DE · Europe/Berlin

Enterprise AI strategyAI platform architectureAgentic automationAI governance

Review profile

Verified CTOAvailable now

Nancy Felix

35 years of engineering management experience specializing in scaling technical teams, auditing architectures, and modernizing legacy codebases.

US · America/Denver

Tech strategytech architecturementoringrevenue growth

Review profile