Birol Aksu

Technology executive and fractional CTO with 12+ years leading product, platform, cloud and AI transformations across B2B SaaS, marketplaces, digital health and humanitarian fintech. I combine board-level technical direction with hands-on architecture and delivery, helping companies turn complex transformation roadmaps into measurable business outcomes. At Atheneum, I led three engineering teams totalling 37 people and modernized the platform supporting a global network backed by a 1.5 million-expert database. I delivered the world’s first integration with McKinsey Digital’s Project Invoice Management platform, strengthening enterprise readiness ahead of a later €150M funding round. At marta, I led engineering through growth and platform evolution. At SYLO, which I co-founded, I built an AI-native mental wellbeing platform from zero to live mobile and web deployment and co-led a €270K pre-seed round. My technical depth spans TypeScript, React, Node.js, Python, AWS, Kubernetes, AI/LLM systems, machine learning, data and BI platforms, Salesforce and enterprise integrations. I am available immediately for fractional CTO, interim technology leadership, AI transformation, platform modernisation, technical due diligence and product scaling mandates across Europe.