Senior Network Infrastructure Engineer
Location: Remote (UK‑based) Industry: Leading Managed Services Provider Type: Fixed Term Contract (12 months)
A leading Managed Services Provider is seeking a Senior Network Infrastructure Engineer to join their Core Networking team on a remote‑based 12‑month fixed term contract.
This internal, non-client facing role sits at the heart of their core network operations, supporting major infrastructure projects and ensuring the stability and performance of a large‑scale, business‑critical environment.
You'll be responsible for supporting, maintaining, and evolving the organisation's core network estate.
The position blends significant project delivery with BAU responsibilities, offering the chance to work on complex migrations, data centre consolidation, and ongoing optimisation of a high‑availability network.
Key Responsibilities
Lead and deliver network infrastructure projects, including data centre consolidation and migration activities.
Design, configure, and deploy switches and other core networking equipment.
Support and maintain MPLS environments, with strong focus on Layer 3 VPNs.
Troubleshoot and optimise BGP, VXLAN, and other advanced routing technologies.
Carry out BAU tasks such as firmware upgrades, patching, and general network maintenance.
Provide expert support across the core network to ensure resilience and high performance.
Work with Cisco ASA and Fortinet firewalls to maintain secure network operations.
About You
Strong hands‑on experience with MPLS, particularly Layer 3 VPNs.
Solid understanding of BGP, VXLAN, and large‑scale routing environments.
Proven experience designing and deploying network infrastructure.
Confident leading technical projects and delivering complex network changes.
Skilled in troubleshooting and configuration across multi‑vendor environments.
Experience with Cisco ASA and Fortinet firewalls.
Comfortable balancing project delivery with BAU operational tasks.
Remote based.
Must be eligible for SC Clearance.
Paying up to £52,000.
Please note this is a 12 month fixed term contract.
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Type: Permanent Location: Leicester, England
Start: ASAP
Duration: 12 months
Salary / Rate: £45000 - £52000 per annum
Posted: 2026-02-05 15:48:45
Network Solution Architect
Opportunity to join a sizeable, well-established and rapidly expanding ISP as a Solution Architect.
The business provides IT services and solutions into Mid-Market, Enterprise scale businesses across voice, networks, connectivity, cloud and more.
You will focus primarily on WAN technologies (MPLS/WAN/SD-WAN), Data Centre Infrastructure and Network Security (Fortinet/Juniper/Cisco tech stack)
Working within a busy Pre-Sales team as a Network focused Solution Architect you will work to support the sales process, supporting sales and professional services teams by identifying customer technical and business requirements, designing and documenting recommended value-focused solutions.
Responsibilities will include:
Acting as the Technical lead on RFP's and bid reviews
Promoting the benefits and values of technical design features, mapping technical designs into business outcomes
Support Sales and Account Management teams as a Technical Consultant
Meet prospective and existing customers, to determine business and technical requirements
Produce and present Technical Solutions and supporting documentation, both high-level and low-level (Network Diagrams etc)
Effectively hand-over solutions and support delivery and operational teams
Support Product Management teams to provide input around product development
To be considered for this position you will require:
Demonstrable experience of previous Pre-Sales / Solutions Architecture
Strong examples of solution design and documentation.
Proficient in LAN, WAN, and Data Centre infrastructure, including technologies such as Switching, Routing, SD-WAN, SASE, WLAN, and SDN.
Strong experience with edge security appliances (Firewalls, IDS/IPS, DDoS), web application gateways, and load balancers.
This is a mature work culture, providing remote working and a great deal of opportunity for professional development.
As such, you will need to be driven and self-managing.
Location: London (hybrid working)
The position will pay: a basic salary of up to £80k + 10% bonus.
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Type: Permanent Location: London, England
Salary / Rate: £80000 - £88000 per annum
Posted: 2026-01-02 08:30:22
