Job description
We are seeking a Network Security Engineer to design, build, and operate critical production network infrastructure supporting a global trading environment.
This is a hands-on role within a small, high-performing infrastructure team.
You will contribute to architectural decisions, deliver projects end-to-end, and support systems used directly by trading and research teams globally.
The role demands strong technical depth, operational discipline, and a structured approach to troubleshooting.
You must be comfortable operating in a production environment where stability, performance, and controlled change management are essential.
Responsibilities: · Design, implement, and support resilient enterprise network infrastructure across data center and cloud environments · Contribute to network architecture and capacity planning in collaboration with global infrastructure teams · Configure and manage routing and switching across core, edge, and data center networks (EIGRP, BGP, OSPF, VLANs, STP) · Support global WAN connectivity, including carriers, exchanges, and third-party connectivity providers · Monitor performance and availability; troubleshoot complex production issues and perform structured root cause analysis · Implement and maintain network security controls, including segmentation, firewalls, and access policies · Maintain accurate documentation, network diagrams, and operational standards · Participate in an on-call rotation and provide escalation support for critical production incidents Experience: · 5+ years of hands-on experience in network engineering within complex, high-availability production environments and university degree in related domain.
· Strong expertise in routing and switching (EIGRP, BGP, OSPF, VLANs, STP, multicast) · Proven experience designing enterprise network architecture and performing capacity planning .
SASE experience with tools like (Cato, Zscaler) · Hands-on experience with NGFW (Palo Alto preferable) · Strong troubleshooting capability across layers 1–4 · Experience with packet capture and analysis tools such as tcp dump and Wireshark · Solid understanding of network security principles and implementation · Experience managing WAN connectivity and working with carriers · Experience operating within structured change control and incident management processes
This job post has been translated by AI and may contain minor differences or errors.
