Horizon Trading Solutions

Horizon Trading Solutions builds and operates a unified electronic trading platform for capital markets participants - equities, derivatives, digital assets - spanning principal and agency desks. The platform maintains direct connectivity to more than 150 liquidity venues across 26 countries. The attack surface here is nontrivial: high-frequency order flow, market data pipelines, direct venue connectivity, and multi-asset settlement paths all demand serious engineering discipline around availability, integrity, and confidentiality. Threat models include latency manipulation, order spoofing, credential compromise at the venue-permission layer, and supply-chain risk across the connectivity stack. Technical domains cover algorithmic trading infrastructure, multi-asset platform development, and direct market connectivity. Security engineers operating in this environment are working against adversaries who understand financial protocols and microstructure - the work is less about perimeter defense and more about securing transactional pipelines where a single compromise can have direct, quantifiable financial impact. Founded in 1998, Horizon has over two decades of operating history in electronic trading, and holds B Corporation certification, signaling a stated commitment to responsible business practices alongside the technical demands of running critical market infrastructure.