Senior Network Engineer | Global Trading InfrastructurePermanent or ContractBuild networks where every microsecond matters.

When reliability, security and latency directly influence trading outcomes, great network engineering makes a measurable difference.Firesoft People is partnering with a global trading firm to find a Senior Network Engineer who wants technical depth, meaningful ownership and the opportunity to shape mission-critical infrastructure.

You’ll work close to the technology that powers global trading, solving complex engineering challenges and seeing the impact of your decisions.

The opportunityJoining a collaborative IT Operations team, you’ll design, support and enhance infrastructure spanning global exchanges, colocation facilities and on-premises environments.The environment brings together enterprise bare-metal hardware, FPGA-accelerated components and low-latency network architectures. You’ll contribute to architecture decisions, own significant projects and help deliver major infrastructure upgrades.

If you enjoy understanding exactly how a network behaves, tracing a problem down to the packet level and building a better solution, there’s plenty here to get stuck into.

• What you’ll ownNetwork performance and resilience: Maintain and improve highly available core and WAN networks across routing, switching, multicast and exchange connectivity.
• Design and troubleshooting: Design and optimise environments using BGP, OSPF, PIM and IGMP, investigating complex issues through packet captures and detailed analysis.
• Security and recovery: Own firewall policies, implement security controls and strengthen disaster recovery procedures.
• Infrastructure engineering: Support and tune Red Hat Enterprise Linux across bare-metal hardware and hypervisors.
• Major upgrades: Lead maintenance windows and infrastructure changes, coordinating with engineering teams, exchanges and colocation providers.
• Automation and visibility: Improve configuration management, monitoring and operational tooling using Ansible, Zabbix and Python.
• Continuous improvement: Respond to incidents, uncover root causes and turn those findings into lasting improvements in reliability and performance.