3rd Line Network Support Specialist - Rolls Royce

Job Req ID: 60409

Posting Date: 16/07/2026

Function: Network Engineering

Location: London

About the role

Our 3rd Line Network Support Specialist will be working on the Rolls Royce account alongside other BT personnel and other 3rd party companies’ engineers, providing lead technical support on complex network, security & cyber security deployments, incidents and projects, liaising with customer representatives, vendors and directing support colleagues.

You will be required to build intermate working relationships through effective communication and meeting expectations. You will need to be committed to reducing KPIs and SLAs to below customer expectations, ensuring that the customer and its services comes first.

The successful candidate will need to be eligible to gain and hold Government Security Clearance to SC UK Eyes Only Level. You may also be required to go through Government Security Clearance to DV Level in the future.

What you’ll be doing

• Form an integral part of a team providing in-life 3rd line technical support, including callout within a 1 in 4 callout rota.
• Be a Subject Matter Expert for a wide range of technologies & products.
• Detect, respond and resolve complex incidents, problems and changes within the operational environment.
• Provide 3rd line SME support, responsible for the high priority incident while resolving within the agreed SLA.
• Be the technology SME for specialised products and services.
• Be the operational SPOC for our design or customer contract teams.
• Provide Root Cause Analysis and contributing to Post-incident Review as and when required.
• Supports issue escalations, identify risks, ensuring timely intervention and communication to stakeholders.

Essential Skills / Experience

• Proven experience of working within both Network Engineering and Security Operations Specialist roles.
• Extensive stakeholder management experience with the ability to work directly onsite with customers and their complex network solutions.
• Industry recognised certifications such as CCNA or relevant experience.
• Proven experience of Cisco / Checkpoint / Fortinet Firewalls, F5, Cisco ISE, Fortinet SD-WAN skills, WIFI, Switches and Routers.
• Excellent experience of managing multiple incidents as a lead, making the right decision to resolve within agreed SLAs.
• Able to liaise with designers and other parts of the organisation to fault/problem find.
• Able to leading teleconferences to troubleshoot major and/or complicated security incidents/issues.

Desirable Skills / Experience

• Exposure to ServiceNow reporting and dashboarding.
• Exposure to AlgoSec and Infoblox

Our Package

Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include:

• 10% on target annual bonus
• Access to an online private GP 24/7 for you and your immediate family
• Market-leading paid carers leave with up to 2 weeks off
• Equalised maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
• Discounted EE and BT products, including mobile and broadband
• Market leading Pension scheme – 5% from you and 10% from us
• Holiday purchase scheme
• You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready

Flexible Working
• This role offers a 3 together, 2 wherever working model. This means you are required to be at your contractual location 3 days a week with 2 flexible days per week.
• Take part in a 1 in 4 week callout rota.
• Frequent travel may be required.

With over 180 years of heritage, BT Business has brought together our best people and capabilities into a B2B powerhouse serving 1.2 million business customers in the UK

We’re a leader for secure connectivity and collaboration platforms for businesses of all shapes and sizes, from big household names and government departments, right through to sole traders and new start-ups. But it’s not just the technology that matters, it’s what it can do to help them build stronger, smarter, more secure businesses.

We are Customer-First Challengers, who are Committed, Clear and Connected. We value diversity and inclusion and believe in making a positive impact. We connect for good by championing digital inclusion and equipping people, businesses, and communities with digital skills to thrive.

As a member of our team, you will be part of an organisation that celebrates difference, fosters innovation and provides you with opportunities to be your best. With millions of businesses relying on us daily, joining BT means you can be part of a diverse and multi-skilled team that makes a significant impact to society.