Senior Network Engineer – London

Senior Network Engineer – London

Temporary 63000 - 77000 Β£ / year (est.) Hybrid
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At a Glance

  • Tasks: Design and implement cutting-edge network solutions for a leading investment manager.
  • Company: Join a top-tier investment firm focused on innovation and technology.
  • Benefits: Competitive daily rate, hands-on experience, and opportunities for professional growth.
  • Other info: Collaborative environment with mentorship opportunities and career advancement.
  • Why this job: Be at the forefront of network modernization and cloud connectivity.
  • Qualifications: 5+ years in networking with expertise in cloud and automation technologies.

The predicted salary is between 63000 - 77000 Β£ per year.

Leading Investment Manager is seeking a highly skilled Senior Network Engineer to support the design, implementation, scalability, and reliability of our enterprise network infrastructure. This role will play a key part in network modernization initiatives, connecting colocation data centers with multi-cloud environments, and contributing deep technical expertise across network design, operations, and incident response.

The ideal candidate brings strong experience in enterprise networking, hybrid-cloud connectivity, automation, and performance optimization, along with the ability to mentor team members and promote best practices across the network engineering domain.

Responsibilities

  • Network Engineering & Design
    • Design, implement, and maintain scalable, resilient, and secure LAN/WAN, SD-WAN, and hybrid-cloud network solutions
    • Contribute to network standards, reference architectures, and roadmaps that support business growth and technology modernization
    • Evaluate and recommend network hardware, software, and service providers to improve performance, reliability, and scalability
  • Cloud & Hybrid Connectivity
    • Design, implement, and support cloud networking solutions across AWS, Azure, and GCP
    • Support and optimize hybrid connectivity using technologies such as AWS VPC, Transit Gateway, Direct Connect, Azure VNet, and ExpressRoute
    • Ensure seamless integration between on-premises environments and cloud platforms
  • Performance & Reliability
    • Support and enhance Site Reliability Engineering (SRE) practices for network operations
    • Help define, monitor, and improve service-level objectives (SLOs) related to network availability, latency, and capacity
    • Proactively identify performance bottlenecks and implement solutions to improve network resilience and efficiency
  • Automation & Infrastructure as Code
    • Contribute to network automation initiatives to reduce manual configuration and improve consistency
    • Develop and maintain Infrastructure as Code (IaC) solutions using tools such as Terraform, Ansible, and Python
    • Partner with operations teams to standardize deployment, monitoring, and operational processes
  • Incident Escalation & Root Cause Analysis
    • Serve as a senior technical escalation point for complex network incidents
    • Support critical incident response efforts, including troubleshooting, coordination, communication, and service restoration
    • Conduct root cause analysis and contribute to post-incident reviews to prevent recurrence
  • Security & Compliance
    • Implement and maintain network security controls in partnership with Information Security teams
    • Manage and audit firewalls, load balancers, segmentation policies, access controls, and Suricata firewall rules
    • Ensure network designs and operational practices align with security, compliance, and risk management requirements
  • Technical Leadership & Collaboration
    • Mentor junior and mid-level network engineers
    • Participate in peer design reviews and provide guidance on architecture, troubleshooting, and operational excellence
    • Promote engineering best practices, documentation standards, and continuous improvement across the team

Qualifications

  • Required
    • Bachelor's degree or qualified by experience with the equivalent combination of education and relevant experience
    • 5+ years of relevant experience
  • Preferred
    • Expertise in core networking technologies and protocols, including: BGP, OSPF, EIGRP, BFD, EVPN/VXLAN, IPSec, MAC-SEC, Zscaler, Zero-trust technologies
    • Proven experience designing, implementing, and supporting hybrid-cloud networking across AWS, Azure, and/or GCP
    • Solid experience with network automation and Infrastructure as Code, including Terraform, Ansible, and Python
    • Demonstrated ability to lead complex troubleshooting efforts and resolve high-severity production incidents
    • Solid communication skills with the ability to collaborate across infrastructure, cloud, security, and application teams
    • Industry certifications such as: CCNA/CCIE or ideally AWS Certified Advanced Networking - Specialty
    • Experience with SD-WAN, network observability, and modern monitoring platforms
    • Familiarity with load balancing technologies and enterprise Firewall platforms
    • Experience leading technical teams, mentoring engineers, and influencing architecture decisions across organizations

Senior Network Engineer – London employer: McCabe & Barton

As a leading global consultancy, we pride ourselves on fostering a dynamic and inclusive work culture that prioritises employee growth and development. With a competitive salary of Β£63,000 plus bonuses and the flexibility of hybrid working, our team enjoys a supportive environment where they can thrive while working with top-tier clients in the Financial Services sector. Join us to make a meaningful impact in Operational Resilience and advance your career in a collaborative setting located in the heart of London.

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Contact Details:

McCabe & Barton Recruitment Team

We think you need these skills to ace Senior Network Engineer – London

Cisco
Cloud Networking
Network Automation
LAN/WAN Design
SD-WAN
Hybrid-Cloud Connectivity
AWS VPC