Network Engineer
Summary
Designs and maintains ultra-low-latency global networks for a quantitative trading firm, handling routing, switching, security, and co-location links.
Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams, with a 25+ year track record of innovation and a reputation for discovering unique market opportunities.
Engineers thrive at Tower developing electronic trading infrastructure at a world‑class level, solving challenging problems in low-latency programming, FPGA technology, hardware acceleration and machine learning. Our investment in top engineering talent and technology ensures our platform remains unmatched in terms of functionality, scalability and performance.
At Tower, every employee plays a role in our success. Our Business Support teams are essential to building and maintaining the platform that powers everything we do, combining market access, data, compute, research infrastructure with risk management, compliance, and a full suite of business services. They enable our trading and engineering teams to perform at their best.
Responsibilities
- Work with high-performance and low-latency network at co-locations across the globe
- Work with latest technologies related to high-performance computing, low-latency infrastructure, multicast, routing, switching and security
- Provide network design and support for co-location, data center and office environments
- Monitor and troubleshoot the global network
- Perform moves, adds and changes to the network infrastructure
- Perform market connectivity tests and circuit migrations
- Lead efforts to optimize network infrastructure
- Assist data center and project teams with infrastructure migrations
- Participate in on-call rotation and weekend work to handle network maintenance
- Liaise with third parties to maintain telecommunication circuits and data center infrastructure
- Work with external parties (Telco carriers, Exchanges, etc.) to maintain communication lines and data center network infrastructure
Qualifications
- At least 5 years of experience working with complex, high-performance networks in a large financial/enterprise environment or service provider environment
- Experience with client‑server architecture and network design
- Experience with Arista EOS, Cisco IOS, Nexus‑OS, and PAN‑OS
- Experience with routing protocols (BGP, OSPF) and multicast (PIM, MSDP)
- Experience implementing and troubleshooting the above hardware, OS and protocols
- Experience with network support tools such as MRTG, Graphite, Grafana, Nagios and other SNMP-based protocols
- Experience with Python scripting to facilitate automation of tasks
- Experience with VPNs (IPSec, GRE) and security appliances (Fortinet, Palo Alto)
- Experience with Unix/Linux OS (system administration)
- Ability to document network topology/design
Benefits
Tower’s headquarters are in the historic Equitable Building in the heart of NYC’s Financial District, with offices around the world. We believe work should be both challenging and enjoyable, fostering a culture where smart, driven people thrive, without egos.
- Generous paid time off policies
- Savings plans and other financial wellness tools available in each region
- Hybrid working opportunities
- Free breakfast, lunch, and snacks daily
- In‑office wellness experiences and reimbursement for select wellness expenses (e.g., gym, personal training)
- Company-sponsored sports teams and fitness events
- Volunteer opportunities and charitable giving
- Social events, happy hours, treats, and celebrations throughout the year
- Workshops and continuous learning opportunities
At Tower, you’ll find a collaborative and welcoming culture, a diverse team and a workplace that values both performance and enjoyment. No unnecessary hierarchy. No ego. Just great people doing great work – together.
Tower Research Capital is an equal opportunity employer.