Senior Network Engineer — Production-Grade FinTech Networks

Referment; Belfast City District; On-site; GBP 65,000 - 90,000; Full time

Job summary

Referment is partnering with a global financial technology business to hire a Senior Network Engineer to support highly available, business-critical infrastructure used across electronic trading and financial markets.

You will work across production, corporate and development networks, taking responsibility for day-to-day network operations while supporting infrastructure changes and wider engineering projects.

Qualifications

• 5+ years of network engineering experience in production environments.
• Experience with Juniper, Cisco and/or Arista equipment.
• Strong knowledge of BGP and OSPF.
• Subnetting, VLANs and NAT understanding.
• Experience configuring IPSec VPNs and GRE tunnels.
• Strong understanding of network security and firewalls.
• Data-centre experience including racking, cabling and patching.
• Ability to work with vendors and cross-functional teams.
• Experience with multicast networking is a plus.

Responsibilities

• Supporting business-critical production and development networks.
• Administering and maintaining network and security infrastructure.
• Troubleshooting complex network and connectivity issues.
• Installing, configuring and maintaining switches, routers and other network devices.
• Working with third-party vendors to resolve production issues and implement infrastructure changes.
• Supporting network changes and infrastructure projects.
• Maintaining routing, switching, VPN and firewall configurations.
• Supporting hosted and data-centre environments.
• Contributing to project planning, implementation and risk management.
• Working closely with other infrastructure and engineering teams.

Skills

Network engineering

BGP

OSPF

Subnetting

NAT

IPSec VPNs

GRE tunnels

Firewall technologies

Data centre operations

Troubleshooting

Vendor coordination

Job description

Referment is partnering with a global financial technology business to hire a Senior Network Engineer to support highly available, business-critical infrastructure used across electronic trading and financial markets.

You will work across production, corporate and development networks, taking responsibility for day-to-day network operations while supporting infrastructure changes and wider engineering projects.