Staff Software Engineer - Margin & Risk

Responsibilities

• Own the architecture and technical roadmap for margin and risk across asset classes, including portfolio margin, intraday margining, options risk, real-time exposure limits, margin-call automation, and margin models for new asset classes.
• Design and build services that turn complex margin methodologies and regulatory rules into correct, testable, and observable systems, and keep those rules consistent where asset classes interact.
• Lead real-time risk enforcement on the order path, balancing latency against accuracy and safety.
• Drive reliability and performance across the team's services: throughput, state recovery, database load, and failure isolation.
• Partner with Product, Brokerage Operations, Compliance, and adjacent engineering teams (order management, ledger, account, market data) to define behavior and integration boundaries.
• Set the standard for correctness in a financial system: transactional integrity, idempotency, reconciliation, feature flags, and staged rollouts.
• Lead design reviews, mentor senior and mid-level engineers, and raise the engineering bar as the team grows.
• Act as a technical point of escalation for production margin and risk issues, and drive durable prevention after incidents.

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