Senior Network Engineer

4 weeks ago

London, United Kingdom Citadel Securities Full time

Job Description

Role Summary As a Senior Network Engineer, you will play a critical role in designing, implementing, and maintaining our complex network infrastructure to ensure low-latency, high-performance trading systems. Your expertise will be instrumental in driving the success of our trading strategies and maintaining our competitive edge in the financial markets. Responsibilities: Design and implement low-latency network solutions: Develop and deploy high-performance network architectures that facilitate the rapid transmission of data to and from various trading platforms, ensuring minimal delays and optimizing trade execution times. Network monitoring and performance optimization: Proactively monitor network performance, identify bottlenecks, and implement improvements to achieve optimal network efficiency and reliability. Troubleshooting and issue resolution: Rapidly diagnose and resolve network-related incidents and outages to minimize downtime and maintain uninterrupted trading operations. Network security: Implement robust security measures to safeguard sensitive trading data and protect against cyber threats and attacks, ensuring the utmost integrity of our trading infrastructure. Collaboration with cross-functional teams: Work closely with software developers, infrastructure teams, and traders to understand their requirements and provide network solutions that align with business needs. Network capacity planning: Conduct regular capacity planning assessments to anticipate future requirements and ensure the network can scale to accommodate growing demands. Stay updated with industry trends: Keep abreast of the latest networking technologies, trends, and best practices, and evaluate their potential application to improve our trading infrastructure. What we are looking for: Proven experience as a Network Engineer in a high-frequency trading or financial services environment. Certification in Cisco technologies would be a benefit Deep knowledge of network protocols, topologies, and architectures, with a focus on low-latency networks and proficiency in configuring and troubleshooting network devices, including routers, switches, and firewalls. Experience with network monitoring and analysis tools and automation – an understanding of Python would be beneficial. Familiarity with market data feeds, exchange connectivity, and trading platforms (, FIX protocol) is a plus. Excellent problem-solving skills and ability to work well in a fast-paced trading environment. In accordance with New York City’s Pay Transparency Law, the base salary range for this role is $125,000 to $350,000. Base salary does not include other forms of compensation or benefits.

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