Jobs at Two Sigma

Lead Risk Engineering in London by managing and developing a high-caliber engineering team, setting technical standards, defining platform strategy, and overseeing execution. Own risk platforms across the trading lifecycle, from data and forecasts through execution and PnL. Partner with risk analysts, traders, portfolio managers, and engineering teams to translate complex requirements into highly available solutions. Remain hands-on with architecture and development while managing stakeholders, roadmaps, delivery, performance, and team growth.

Develop and maintain reliable software systems, automation, monitoring, observability, and production data pipelines. Improve scalability, availability, operability, and deployment processes while collaborating with software engineering teams on architecture and performance. Operate production-critical environments, follow change-management controls, enhance automated testing, and participate in support rotations for research and data pipelines.

Develop, operate, and maintain low-latency infrastructure that processes and redistributes market data and orders in live production. Partner with trading desks, exchanges, counterparties, and data providers to minimize outages, support trading, and ensure regulatory compliance. Responsibilities include production support, infrastructure reliability, performance analysis, and systems operation across multiple asset classes.

Entry-level software engineers build scalable infrastructure, trading systems, cloud environments, data ingestion platforms, testing and deployment tools, and internal productivity systems. Responsibilities vary by engineering team and include reliability, high-performance systems, distributed storage, and large-scale data processing. Candidates need a technical or quantitative degree, programming experience, large-scale systems experience, strong analytical and interpersonal skills, and enthusiasm for building quality software.

Investigate and resolve production alerts, improve operational runbooks, validate financial data, identify data-quality trends, and reduce operational risk. The role uses Linux, SQL, scripting, logs, databases, file systems, and workflow tools while collaborating with engineers, analysts, and business partners supporting global trading operations.