Caplin Names New CTO

Caplin Systems has announced the appointment of Steve Charlesworth as chief technology officer – an internal appointment, he has been with the firm since the start of 2026 as a product manager.

He joined the firm from a firm he founded to deliver digital tax solutions, he has also had spells at institutions including UBS, BBVA, Morgan Stanley, and Crédit Agricole CIB, in FX trading technology development roles. He led product and business analysis across pricing engines, single-dealer platforms, FIX APIs, and regulatory programmes such as MiFID II. On the vendor side, he held roles at Thomson Reuters, EBS, and SmartTrade Technologies, where he was product manager for the Liquidity FX platform.

“Appointing Steve from within means he already understands our clients, our products, and our team,” says Tom Darvall, managing director at Caplin Systems. “His extensive experience working with banks and vendors pairs strong institutional domain expertise with technical credibility. It’s an exciting time for technological advancement, and as we expand into FICC, digital assets, and new markets, Steve is uniquely suited to ensure our technology strategy supports the evolution of our product.”

Charlesworth adds, “Having spent my career on both sides of the market, I know what banks need from their technology partners: speed, reliability, and domain expertise. Caplin has an incredible technical foundation and a long history of innovation within our space. My priority is to build on that work with AI-enabled low-code/no-code tooling tailored to the specific requirements of institutional e-commerce businesses, allowing us to broaden our product and services offerings and to accelerate our delivery of new, high-value capabilities, while keeping our product strategy tightly aligned with where institutional multi-asset trading is heading.”