Senior Network Engineer

OpticoreIT; London; Hybrid; GBP 40,000 - 45,000; Full time

Job summary

A leading consultancy in IT services is looking for a Senior Network Engineer in London. The role entails leading Data Center projects, designing scalable network solutions using Cisco and Juniper technologies, and managing advanced firewalls. The opportunity comes with significant learning and development benefits, including free training and certifications.

Benefits

Competitive Salary & discretionary bonus

23 days holiday + bank holidays

Private healthcare & dental

Pension

EV car salary sacrifice schemes

Workplace nursery scheme

Team & Company Social events

EMI share scheme

Qualifications

• Proven experience leading Data Center projects, including migration and integration.
• Extensive experience with Cisco and Juniper routing/switching platforms.
• Strong understanding of core networking principles.

Responsibilities

• Lead design and implementation of network solutions.
• Manage next-generation firewalls and security configurations.
• Troubleshoot complex network incidents.

Skills

Data Center Projects

Routing and Switching

Firewalls Management

Security Policies

Tools

Cisco Routers

Juniper Routers

Fortinet Firewalls

Palo Alto Networks

Job description

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Opticore IT is a specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within fast-paced, challenging environments across our client base spanning multiple sectors including Finance, Broadcast Media, Telecommunications and more.

We are currently seeking a Network Engineer, to join our Network Practice; within one of our Financial clients. This opportunitity requires expertise in Data Centre projects, advanced routing and Switching, and Firewalls. This is a hybrid position but you will be required to attend the office up to 2 days a week, based in the London.

What you'll be doing:

• Lead the design, deployment, configuration, and maintenance of robust and scalable network solutions incorporating Cisco and Juniper routers, switches, and related technologies.
• Manage and administer Fortinet and Palo Alto Networks next-generation firewalls (NGFWs), including centralized management tools (e.g., FortiManager, Panorama).
• Implement and manage security policies, rules, and configurations on firewalls and network devices to protect corporate assets and ensure compliance with industry best practices
• Spearhead and execute Data Center Take Over projects, including due diligence, planning, design, and implementation of network infrastructure transitions.
• Develop detailed migration plans, risk assessments, cutover strategies, and post-migration validation procedures for seamless data center integrations.
• Provide expert-level troubleshooting and support for complex network incidents and issues related to routing, switching, firewalls, and connectivity
  
  

What you'll bring:

• Proven experience leading and executing complex Data Center Take Over projects, including planning, migration, and integration.
• Strong understanding of data center infrastructure, including power, cooling, cabling, and physical security considerations during transitions.
• Extensive experience in designing, implementing, and managing Cisco (e.g., Catalyst, Nexus, ASR/ISR) and Juniper (e.g., MX, EX, SRX) routing and switching platforms
• Proficiency with routing protocols (BGP, OSPF, EIGRP), MPLS, VXLAN, EVPN, and Spanning Tree protocols
• Demonstrable experience in designing, implementing, and managing Fortinet FortiGate firewalls (FortiOS, FortiManager, FortiAnalyzer) and Palo Alto Networks firewalls (PAN-OS, Panorama)
• Strong understanding of core networking principles, protocols, and technologies (TCP/IP, DNS, DHCP, HTTP/S, SNMP, NTP, etc.)
  
  

What you’ll gain:

Here at OpticoreIT we believe in investing in our team as we understand that we are only as great as our engineers, so learning and development is a big deal for us. Whether you’re going for a CCNP, CCIE, Hashicorp, Python, Cloud Technology or anything in between Opticore IT has your back with all our training, labs, courses, and shared knowledge and the most important part it’s all free! On top of that, we also give you:

• Competitive Salary & discretionary bonus
• 23 days holiday + bank holidays
• Private healthcare & dental
• Pension
• EV car, workplace nursery, tech, and cycle-to-work salary sacrifice schemes
• Team & Company Social events
• EMI share scheme
  
  

Diversity:

At Opticore IT we embrace diversity and are committed to equal opportunities. We actively recruit for an inclusive and diverse workforce and as such, want to ensure we do everything we can to support your application.

We want you to feel empowered to let us know if you require any adjustments to be made with your application or interview process so please speak to our recruitment team.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  IT Services and IT Consulting

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