Senior Network Engineer

Thurn Partners; United States; On-site; USD 120,000 - 160,000; Full time

Job summary

A global technology-driven trading firm is seeking a Senior Network Engineer to manage and enhance a low-latency trading network. Ideal candidates will have 5-10 years of experience in high-frequency trading with strong skills in network protocols, troubleshooting, and project management. This role offers the opportunity to work collaboratively in a dynamic environment, significantly impacting trading performance through effective network solutions.

Qualifications

• 5-10 years of relevant experience in low-latency trading environments.
• In-depth understanding of network protocols and best practices.
• Familiarity with configuration management tools like Ansible.

Responsibilities

• Responsible for network product selection, design, and management.
• Collaborate with Systems and Trading Operations teams to optimize performance.
• Analyze problems and implement solutions that impact trading.

Skills

Low-latency and high-frequency trading experience

Network protocol understanding

Excellent troubleshooting skills

Communication skills

Experience with Unix/Linux

Education

BS in Computer Science, Electrical Engineering, or related IT field

Tools

Arista

Cisco

tcpdump

Wireshark

Job description

A global, technology-driven quantitative trading firm is growing its Infrastructure organization and seeking exceptional engineering talent. For nearly two decades, the firm has been at the forefront of high-frequency and systematic trading, known for its deep technical excellence and consistently strong performance across global markets.

This is a research- and engineering-first environment, where small, highly autonomous teams build ultra-low-latency systems at massive scale. The culture is flat, collaborative, and merit-driven—far closer to a leading tech company than a traditional financial institution. Engineers work side-by-side with traders and researchers, avoid unnecessary process, and maintain full ownership of their systems from design to production.

The Role

This position is a Senior Network Engineer and requires both project management and deep technical skills. You’ll be responsible for everything from product selection and design to routing configuration and troubleshooting. You will work closely with the Systems and Trading Operations teams to build, manage, and monitor a low-latency trading network. You’ll have broad responsibilities with freedom to analyze and solve problems, and your solutions will have an immediate impact on trading performance.

Required Qualifications

• 5-10 years of relevant experience, preferably in low-latency and high-frequency trading environments
• BS in Computer Science, Electrical Engineering, or related IT field
• In depth understanding of common layer 2 and layer 3 network protocols and best practices; working knowledge of OSPF, BGP, PIM, IGMP
• Experience managing Arista, Cisco, and other common networking devices on a day-to-day basis
• Familiarity with low-latency microwave networks and/or optical transmission systems, such as Adva, Ciena is desirable
• Excellent troubleshooting skills on a wide range of networking issues, including common ethernet LAN problems, multicast market data distribution, and global WAN
• Understanding of basic power consumption and cooling issues in a datacenter environment
• Knowledge of fiber optics technology and cabling standards. Ability to sort through specs and make recommendations on appropriate purchases
• Familiarity with firewalls (including Cisco, Palo Alto, Fortinet), VPNs and NAT
• Familiarity with configuration management tools, such as Ansible or Salt is desirable
• Familiarity with Python, Prometheus, Grafana, ELK, GitHub is desirable
• Familiarity with public cloud networks, such as AWS, GCP, Azure, is desirable
• Experience in designing enterprise networks, capacity planning, and full lifecycle project management
• Experience with packet decoding and analysis tools such as tcpdump and Wireshark
• Excellent oral and written communication skills: able to distill complicated issues into clear and concise terms and to create and maintain effective technical documentation
• Experience with Unix/Linux command line utilities and networking stack