Summary
Mark Fainstein is a pragmatic technology leader and co-founder serving as CTO at Threefold AI, with eight years of engineering and leadership experience across e-learning, civic tech, and gaming. He has progressed from hands-on game and tools development to leading infrastructure and full-stack teams, most recently shaping product and engineering at Juno Journey and Zencity. Comfortable translating creative requirements into robust technical solutions, he pairs a BSc in Mathematics & Operations Research with a track record of building developer tooling, CI/infrastructure, and reliable production systems. Known for mentoring teams and fostering internal knowledge-sharing (including wikis and bespoke tooling), he excels at turning complex cross-disciplinary needs into maintainable software and scalable processes. Based in Israel, he brings a disciplined, mission-driven approach rooted in early command experience in the IDF and a consistent focus on developer productivity and community.
8 years of coding experience
12 years of employment as a software developer
Bachelor of Science (BSc) Mathematics Operations Research, Bachelor of Science (BSc) Mathematics Operations Research at Tel Aviv University
English, Hebrew, Russian