Institutional finance runs on interfaces, and most of what matters about an interface is what it refuses to do. That refusal is the subject of the research collected here.

Jean-Luc Martel has spent his career on the systems behind regulated financial firms — insurers, wealth managers and pension funds — where an order, a payment and a ledger entry all have to agree before anyone can call the day closed. His work spans software engineering, data science, architecture and technology operations, and it usually begins with the unglamorous questions: what to build, what to buy, how the pieces integrate, and which team will own the result at three in the morning.

He specializes in build-operate-transfer engagements — standing up a capability, operating it, then handing it to the institution with the practices and the people to sustain it. That arrangement makes boundaries visible. A system whose entitlements, reconciliation rules and failure modes exist only as folklore cannot be transferred to anyone.

His current attention is on AI-assisted software development, business process automation, and what autonomous agents do to authorization. An assistant that can reach a trading system or a client record inherits its permissions from somewhere, and tracing that path is an ordinary access-control problem wearing new clothes.

His employer is Singular State, in the financial-services AI practice; Sidebet Solutions has him on its investment committee.