Martin van der Heijden

Technical founder and AI product builder — Martin co-founded 11x and served as its CTO, leading development of AI products (including an AI Sales Associate) and helping secure early-stage funding. clay+1

Full‑stack engineering background — he has hands-on engineering experience at startups and consultancies, listed as a founding engineer at Auctree and a full‑stack developer at Canary & Delta, demonstrating product and implementation skills across stacks. hackmd+1

Applied AI across domains — Martin has built and participated in AI projects and hackathons (healthcare-focused hackathon mentions, Devpost submissions like aGP Chat) and is involved in AI & automation efforts in private‑equity real‑estate operations through Kenzu. substack+2

Startup ecosystem engagement and mentorship — besides founding startups, he has been involved with Entrepreneur First as Entrepreneur in Residence and participates in the founder community, indicating mentorship and ecosystem activity. clay+1