Senior Engineer, Network Engineering (Core Networking)

Job Purpose Intercontinental Exchange, Inc. (ICE) presents a unique opportunity to work on cutting‑edge technology and business challenges in the Financial Sector. Position Overview The Senior Network Engineer provides a leadership role in core routing, switching, and load balancing, supporting low‑latency mission‑critical financial networks. The successful candidate will multitask in a dynamic team‑based environment, demonstrating strong problem‑solving, decision‑making, and professionalism. Responsibilities Design and deliver network solutions within a Private Cloud infrastructure; Public cloud experience is a plus. Execute controlled network changes across firewalls, load balancers, DDoS, WAF, and route/switching (BGP/OSPF). Operate network changes using orchestration and automation products, tools, and scripts. Support and maintain multiple multi‑vendor production network environments critical to the business (Arista/Juniper). Manage and execute network and firewall requests in accordance with security policies on mission‑critical infrastructure. Troubleshoot complex network issues and performance problems. Design, configure, and support real‑time market data feeds over IP multicast and unicast. Research and design new networking solutions based on given requirements. Assist ICE staff with problem‑solving and escalation procedures. Understand and follow operational policies/procedures and promote adherence to the same. Provide technical knowledge needed to ensure safe, effective, and efficient changes to the network infrastructure. Assist with the development of policies and procedures for maintaining network infrastructure. Collaborate and work closely with Cybersecurity, Systems engineering, and Datacenter (Colo) engineering teams. Participate in a 24/7 on‑call rotation. Knowledge and Experience Design, configure, and support core routing and switching infrastructure using BGP, OSPF, multicast, and policy‑based routing. Design, configure, and support F5 LTM/GTM including traffic steering, persistence, SSL offload and high‑availability configurations. Support Network Operating Systems and Product Technologies such as Palo Alto, Checkpoint, Juniper, Arista, Cisco, F5, Kemp, A‑10, Cloudflare, Akamai, Fortinet, etc. Implement, enhance, and maintain network orchestration and automation‑based products and solutions such as Ansible, Puppet, Chef, Vendor‑based, etc. Network programming and scripting skills in Python, Bash, Perl, JSON, etc. Ability to identify, create, and deliver standards and best‑practice solutions. Preferred B.S. in Computer Science/Information Technology or equivalent work experience. 5+ years of relevant experience in the design, deployment, and support for large‑scale, multi‑vendor, secured networks. Extensive knowledge of three or more network operating systems/platforms including Junos, IOS/NX‑OS, EOS, PANOS, IPSO, or F5 LTM/GTM. Knowledge of stateful packet inspection firewalls. Experience administering CDN and DDoS products such as Cloudflare, Akamai, Arbor, Imperva, or similar. Knowledge of Juniper MX/EX/QFX and Arista platforms. Expert TCP/IP, OSPF, and BGP routing skills. Expertise in packet capture, decode, and analysis. Extensive knowledge of multicast design and troubleshooting including IGMP and PIM protocols. Deep understanding of NAT, route maps/ACLs, routing policies, and IPSEC VPN. Experience coding with any combination of Perl, Ruby, Bash, Python, XML, JSON. Experience with automation/configuration management tools such as Ansible, Chef, and Puppet. Ability to multitask and work independently on multiple projects. Ability to differentiate between a critical business‑impacting incident and a minor problem and resolve/escalate accordingly. Experience working on financial/HFT networks. Knowledge and skills with VXLAN and EVPN technologies. Juniper, Arista, or Cisco advanced certification. Firewall advanced certification. Unix/Linux system administration. Fluency with operating Splunk or other SIEM‑based products. Intercontinental Exchange, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to legally protected characteristics. #J-18808-Ljbffr ICE