SME - Network LAN/WAN (164428)

Job Summary

Network Engineer

Key Responsibilities

Accountabilities • Provide 2nd line support for extranet and external connectivity services • Monitor, troubleshoot, and resolve connectivity, routing, firewall, and certificate issues • Support partner onboarding and offboarding, following approved patterns and procedures • Troubleshoot low latency connectivity and performance issues for latency sensitive services • Assist with BGP routing troubleshooting, including route visibility and failover scenarios • Investigate incidents, provide timely updates, and contribute to root cause analysis (RCA) • Work closely with Network, Security, and Application teams to resolve cross domain issues • Execute approved changes and maintenance activities • Maintain and follow runbooks, SOPs, and operational documentation • Participate in on call or shift based support (where applicable) • Automation, monitoring enhancements, capacity management, resiliency, business continuity management, front office specific support and stakeholder management

Skill Requirements

To be successful as an Extranet Networking Engineer, you should have: • Solid understanding of TCP/IP networking, routing, and DNS • Working experience with BGP & Arista (basic peering, route advertisement, and troubleshooting) • Working experience with Multicast • Working experience with networking Hardware • Exposure to low latency networking concepts, including: • Latency, packet loss, and jitter awareness • Path selection and basic performance troubleshooting • Hands on experience with firewall technologies, including: • Policy implementation and troubleshooting • NAT and access control rules • Experience supporting VPN technologies (IPSec, SSL, site to site) • Understanding of TLS/SSL and certificate management • Operational experience on Linux/Unix platforms • Ability to analyze logs, alerts, and basic packet captures • Familiarity with incident and change management processes

Other Requirements

Some other highly valued skills include: o Experience supporting external Client connectivity, Exchange Trading venue connectivity, multicast Market Data feeds. o Experience with CSO/CISO and third-party risk management o CCNP, CCDA, CISSP certifications o Experience with Network routing (BGP) and Precision time (PTP) protocols o Experience with scripting and Ansible automation tooling o Experience with Open-source based monitoring and logging tools such as Prometheus and Telegraf