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Network Engineer
Job Posted: 4 hours ago
Salary: £ 60,000 - 70,000 / Annum
Job Type: Permanent
Location: EC1A, Clerkenwell, Greater London
Expire in: a month
Job Description
Arcas Technology is partnered with a global financial trading firm that specializes in derivatives contracts, including Futures and Options.
The role will focus on designing, operating, and troubleshooting a secure, high-performance global network supporting 24/5 trading activities. You will manage routing across data centres and offices, support trading and back-office network traffic, and operate key security platforms such as firewalls, VPNs, and ZTNA solutions.
Responsibilities:
* Design, deploy, and support network infrastructure across global offices and data centres.
* Manage and troubleshoot multicast routing for market data distribution across multiple VRFs and VLANs.
* Administer Aruba and Arista switches including configuration, firmware upgrades, and performance tuning.
* Maintain BGP peering and route filtering policies to support low-latency trading.
* Configure and monitor Palo Alto firewalls, GlobalProtect VPN, and ZScaler security platforms.
* Support VMware SD-WAN deployments and policy management for remote offices and trading hubs.
* Monitor network health, latency, and throughput across critical links.
* Assist in network automation and documentation using standard tools.
* Provide 2nd line support for network/security incidents, with on-call rotation as part of 24/5 global coverage.
Key Skills:
* Proven experience with multicast routing in a high-throughput environment.
* Solid understanding of BGP and enterprise-level routing & switching.
* Hands-on experience with Aruba (Access/Distribution Layer) and Arista (Core/Low Latency) switches.
* Experience working with low-latency network tuning for trading or similarly performance-critical environments.
* Strong knowledge of Palo Alto Networks firewalls, GlobalProtect, and associated security policies.
* Familiarity with ZScaler ZIA/ZPA and internet egress security in a global enterprise.
* Experience with VMware SD-WAN (VeloCloud) or other modern SD-WAN technologies.
* Ability to troubleshoot and diagnose complex network issues at all OSI layers.
If you feel that you’re a good fit for this role then please forward your CV to Andy Dale at Arcas TechnologyBefore You Apply
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