Network Engineer

🔒 Confidential Employer
Posted 24 March 2026
LOCATION
London
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Cisco Arista BGP Python Firewall Routing & Switching

FULL DESCRIPTION

Network Engineer

[Employer hidden — view at passion-project.co.uk] is searching for a Network Engineer to join a major Financial Services client. The role involves managing the client's global network, troubleshooting network issues, and working on projects and support tickets. The role is hybrid, with up to 3 days a week on-site in Central London.

You will be responsible for our clients global network, covering office, data centre, and co-location. As such, it has a major impact on the optimisation or their company performance.

Apply today!

We usually respond within three days

[Employer hidden] are currently searching for a Network Engineer to join a major Financial Services client. You will be responsible for our clients global network, covering office, data centre, and co-location. As such, it has a major impact on the optimisation or their company performance.

[Employer hidden] 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.

This is a hybrid opportunity working on site up to 3 days a week in Central London

What you'll be doing:

  • Troubleshooting network issues across different vendors (Cisco: IOS-XE, IOS-XR, NX-OS Arista: EOS)
  • Providing resolutions to major incidents
  • 3 out of 4 weeks you’ll be working on a mix of projects. The other week it is tier 3 support tickets
  • Investigating hardware and software problems and working with manufacturer support teams to resolve issues
  • Reporting and troubleshooting network connectivity to third parties, and WAN connectivity outages and issues with our partners
  • Monitoring performance across Data Centre infrastructure.

What you'll bring:

  • Experience with vendors such as Cisco and Arista
  • Strong enterprise complex Routing & Switching
  • Strong previous experience with BGP
  • Proficient in creating and running network automation tools, with experience using Python preferable
  • Previous firewall experience (Palo Alto or Fortinet)
  • Skilled in mentoring other team members, and committed to knowledge sharing across the team for skills development and collaboration

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 OpticoreIT 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 [Employer hidden] 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.

Department
: Networks

Role
: Network Engineer

Locations
: London

Job Type
: Hybrid

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