Andrew Siggemann

I build regulated, scalable platforms at the intersection of AI, cloud, and fintech. As Head of Architecture at Open Banking, I’ve led enterprise architecture and platform strategy while running the world’s first Open Banking technical directory—aligning banks, TPPs, and fintechs on secure, interoperable APIs. My leadership style blends product sense with deep engineering judgment: clarify the problem, align stakeholders, and ship resilient systems with measurable outcomes. I’ve delivered cloud-native architectures, API programs, and data/ML capabilities in high-compliance environments, partnering with regulators, banks, and vendors. What I bring as a Technology leader: Strategy to execution: translate commercial goals into a pragmatic technology roadmap, org design, and budgets. AI & data: productionise AI/ML responsibly (governance, risk, model ops) to unlock real business value. Cloud & platforms: build platform teams that accelerate delivery—secure by default, observable, cost-aware. Fintech & open banking: deep understanding of PSD2/3, FAPI, OAuth/OIDC, and the realities of bank integrations.