Senior Network Engineer

Citadel Securities; Greater London; On-site; GBP 93,000 - 263,000; Full time

Job summary

A major financial services firm in the Greater London area is seeking a Senior Network Engineer to optimize their complex network infrastructure. The ideal candidate will have extensive experience in a high-frequency trading environment, focusing on low-latency solutions, network monitoring, and security. Responsibilities include designing network architectures, troubleshooting issues, and collaborating with cross-functional teams. A competitive compensation package, ranging from $125,000 to $350,000, is offered based on experience and qualifications.

Qualifications

• Proven experience as a Network Engineer in a high-frequency trading or financial services environment.
• Deep knowledge of network protocols, topologies, and architectures with a focus on low-latency networks.
• Experience configuring and troubleshooting network devices like routers, switches, and firewalls.

Responsibilities

• Design and implement low-latency network solutions for trading platforms.
• Proactively monitor network performance and implement optimizations.
• Rapidly diagnose and resolve network-related incidents to minimize downtime.

Skills

Network protocols knowledge

Problem-solving skills

Experience with network monitoring and analysis tools

Ability to work in fast-paced environments

Tools

Python

Cisco technologies (Certification)

Job description

Overview

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.

Qualifications

• 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.

Compensation

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.