Crypto Market Feed Handlers Lead

Job Description
Role Overview:
As the Crypto Market Feed Handlers Lead, you will be responsible for the architecture, performance, and reliability of systems that ingest, normalize, and distribute market data from exchanges around the world.
You will lead the development of high-performance feed handlers and exchange connectivity solutions across centralized and decentralized venues while partnering closely with trading, quantitative research, and engineering teams. Your work will directly impact trading performance by ensuring that market data is accurate, deterministic, resilient, and delivered with minimal latency.
This is a hands-on technical leadership role for someone who enjoys solving complex distributed systems challenges, building high-performance software, and driving engineering excellence within a rapidly evolving market.
Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel Securities, please share your details and we will contact you if there is a vacancy available.
Responsibilities:

• Own the architecture and technical direction of our crypto feed handler platform.
• Design and build low-latency exchange connectivity solutions across major crypto venues.
• Lead development of systems for market data ingestion, sequencing, normalization, order book construction, and downstream distribution.
• Drive venue onboarding across centralized exchanges (CEXs) and decentralized venues (DEXs).
• Build resilient infrastructure capable of handling fragmented liquidity, inconsistent schemas, and varying levels of data quality across exchanges.
• Develop frameworks for data quality monitoring, gap detection, reconciliation, recovery, and replay.
• Improve latency, throughput, resiliency, and operational stability across a 24/7 production environment.
• Partner closely with traders and quantitative researchers to deliver reliable market data that supports alpha generation and execution.
• Scale systems to support new exchanges, tokens, derivatives, and emerging market structures.
• Mentor and develop engineers while establishing high standards for ownership, reliability, and execution.
• Define technical KPIs and operational metrics that drive continuous improvement.

Qualifications:

• Significant experience building low-latency trading infrastructure in electronic trading, market making, or digital asset environments.
• Deep expertise developing feed handlers, exchange connectivity, or market data platforms.
• Strong understanding of crypto exchange architecture and connectivity across venues such as Binance, Coinbase, Deribit, OKX, Bybit, and similar exchanges.
• Expert-level C++ development experience in performance-critical systems.
• Experience with real-time distributed systems, networking, multithreading, concurrency, and memory optimization.
• Strong understanding of order book construction, market data normalization, sequencing, and replay mechanisms
• Experience working with unreliable or non-deterministic data sources and implementing recovery and reconciliation processes.
• Proven ability to lead technical initiatives and influence engineering direction across teams.
• Track record of delivering production systems with measurable business impact.
• Strong communication skills and the ability to work effectively with engineering, trading, and quantitative research stakeholders.

Preferred:

• Experience building infrastructure for market-making, high-frequency trading, or systematic trading businesses.
• Experience with traditional market data systems and exchange connectivity in equities, futures, options, or FX markets.
• Knowledge of low-latency networking techniques, kernel bypass technologies, and performance optimization strategies.

In accordance with applicable law, the base salary range for this role is $175,000 to $350,000.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
About Citadel Securities
Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market's and our clients' most critical challenges. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com .