Citadel Securities
We embrace bold ideas and seize opportunities others don’t, from the way we operate to the strategies we deploy.

Senior Network Engineer

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Employer Provided Salary: 125,000-350,000 Annually
Salary data is provided by the employer. Please note this is not a guarantee of compensation.

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.

  • 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 (e.g., 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.
About Citadel Securities
Citadel Securities is the next-generation capital markets firm and a leading global market maker. We provide institutional and retail investors with the liquidity they need to trade a broad array of equity and fixed income products in any market condition. The brightest minds in finance, science and technology use powerful, advanced analytics to solve the market's most critical challenges, turning big ideas into real-world outcomes.

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