Senior Network Engineer - Banking & Finance

Are you looking for an exciting new opportunity? 

Join a global leader in payments technology, trusted by the world’s leading brands to power seamless transactions across merchants, fintech companies, and financial institutions. With over four decades of expertise, the organization delivers a flexible payments platform combining devices, applications, services, acquiring capabilities, and an open ecosystem of more than 2,500 integrations. Operating in over 150 countries and processing billions in transactions annually, it simplifies complexity and unlocks new possibilities across every payment channel.

Don’t miss out on this exciting opportunity and apply today!

Key Responsibilities:

• Plan and execute migration of network infrastructure from on-prem Cisco environments to AWS
• Design and document AWS network architecture (VPCs, routing, segmentation, security groups)
• Map existing Cisco configurations to AWS services (VPC, Transit Gateway, Direct Connect, NACLs)
• Configure and optimize AWS networking components (subnets, route tables, load balancers)
• Implement network security best practices (encryption, firewalls, DDoS protection)
• Troubleshoot issues, optimize performance, and ensure post-migration stability
• Produce technical documentation and runbooks

Required Skills/Qualifications:

• 6+ years’ experience with Cisco/Juniper networking
• Strong routing & switching experience
• Solid experience with BGP, OSPF, STP, IPsec, and WAN technologies (e.g. MPLS)
• Hands-on experience with Cisco (ASA, Nexus) and Juniper (SRX, EX) devices
• Strong troubleshooting and packet analysis skills
• Experience with AWS networking
• Familiarity with Terraform and infrastructure automation tools

Location:

• Hybrid
• Central London (3x per week)

Salary:

• Up to £80,000 
• Depending on experience