Senior Networking & Security Specialist

CBS Butler Limited
Newbury, UK
4 days ago
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Role details

Contract type
Temporary contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Compensation
£130,000.0 - £156,000.0
Working hours
Regular working hours

Tech stack

Link Aggregation (Ethernet) Application Programming Interfaces (APIs) Border Gateway Protocol Catalyst (Software) Cisco IOS Complex Networks Enhanced Interior Gateway Routing Protocol Internet Protocol Security (IP SEC) Junos Python (Programming Language) Network Security Netconf
+18 more
Cisco Nexus Switches Open Shortest Path First (OSPF) Ansible Virtual Local Area Networks Wide Area Networks Transport Layer Security Identity Services Engine Load Balancing Nx-os Firewalls (Computer Science) Amazon Virtual Private Cloud (VPC) Juniper Fortinet Routing & Switching Firepower Open Network Automation Platform Big Ip Cisco

Job description

We are looking for an experienced Senior Networking & Security Specialist/Technical Lead to join a high-level technical delivery team, leading the design and hands-on implementation of complex, multi-vendor network and security solutions across enterprise environments.

This is a hands-on role combining technical leadership, solution design, implementation and stakeholder engagement., * Lead the design and implementation of complex network and security solutions across greenfield and brownfield environments

  • Produce high-quality HLDs, LLDs, implementation plans and operational runbooks
  • Perform design validation, PoC testing and pre/post-implementation verification
  • Configure, deploy and optimise network and security infrastructure
  • Diagnose and resolve complex network and security incidents
  • Conduct technical assessments and capacity planning
  • Act as the primary technical point of contact for project stakeholders
  • Present technical designs and implementation strategies to technical and non-technical audiences
  • Coordinate engineers and technicians, providing technical leadership and mentoring
  • Work closely with project managers, solution architects, client teams and operations throughout the project life cycle

Technical Experience Required

We’re particularly interested in candidates with strong experience across:

Networking

  • Advanced routing & switching
  • BGP, OSPF, IS-IS and EIGRP
  • VLAN, STP/RSTP/MSTP, vPC/LACP and QoS
  • VXLAN, GRE and IPsec
  • Enterprise and service-provider environments
  • Cisco ACI, including spine-leaf architecture and multi-pod/multi-site

Network Security

  • Next-Generation Firewall design and implementation
  • IPsec, SSL/TLS and SD-WAN security
  • Security policy and life cycle management
  • Compliance-aligned network security

Requirements

  • L4/L7 load balancing
  • SSL offloading
  • Global Server Load Balancing (GSLB)
  • High-availability architectures

Vendor Technologies

  • Cisco IOS/IOS-XE/IOS-XR/NX-OS, ASA, Firepower, ISE, Catalyst Center and ACI
  • Juniper JunOS and SRX
  • Fortinet FortiOS, FortiGate, FortiManager and FortiAnalyzer
  • F5 BIG-IP LTM/GTM/ASM/APM and iRules

? Desirable

  • Network automation experience using Python and/or Ansible
  • Experience integrating network platforms via REST/NETCONF/RESTCONF/gRPC APIs
  • Professional-level networking certifications such as CCIE, JNCIE or equivalent
  • Cisco DevNet certification

What We’re Looking For

You’ll need to be a confident technical lead who can take ownership of complex deliverables, communicate technical concepts clearly, solve problems under pressure and work effectively with both technical and business stakeholders.

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