Senior IT Network Engineer

this opportunity and L3Harris UK; Farnborough; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading technology firm in the UK is looking for a Senior Network Engineer to join their Corporate data network engineering & security team. The role involves providing technical expertise in network management, optimizing performance, and supporting various security measures. The ideal candidate will have significant experience in IT Security, particularly with Palo Alto Firewalls and cloud services. This position offers hybrid work options and competitive benefits.

Benefits

Hybrid working options

25 days holiday plus bank holidays

Private medical insurance

Pension scheme with employer contribution

Employee assistance program

Qualifications

• 8+ years of experience in network engineering or related field.
• Experience in a large scale enterprise environment is essential.
• Certifications like CISSP, CISA, PCNSE, or Security are desirable.

Responsibilities

• Provide technical expertise and support for network performance.
• Support day-to-day Firewall and Remote Access changes.
• Design documents, troubleshoot, and implement various network solutions.
• Engage with stakeholders on strategic planning for Cloud services.

Skills

Network / IT Security

Palo Alto Firewall experience

SDWAN implementation

Logging and monitoring tools

Core Routing and Switching

Cloud services (Azure, AWS)

Windows / Linux server administration

Education

Bachelor’s Degree with 8 years experience

Graduate Degree with 6 years experience

Tools

Palo Alto Networks services

Hyperconverged technologies (Nutanix, Cohesity)

Job description

Job Title: Senior Network Engineer

Job Location: Farnborough UK

Job ID: 30300

About this opportunity and L3Harris UK

From 11 UK sites our team of nearly 1000 people delivers unique capabilities across space, air, land, sea and cyber for military security and commercial customers across the UK and worldwide.

The Global Technology and Business Solutions department (EMEA region) functions as a high-performance hub that delivers core IT capabilities across our organisation. We focus on measurable outcomes leveraging standardised processes, data-driven decision making and customer-centric delivery to support innovation and growth.

The individual will work in a fast-paced environment with high expectations, global scope and a collaborative team setting. Provide technical and engineering participation on the Corporate data network engineering & security team with a firm grasp of networking, routing and firewalls.

Employee Benefits

• Hybrid working where possible, three days onsite per week
• Flexible or part-time working arrangements considered upon request
• 25 days holiday per year (plus bank holidays) increasing with long service and with the opportunity to buy / sell up to 5 days
• Private medical insurance with optional family cover
• Pension scheme of up to 7% employer contribution
• Life Assurance 4x salary (flexible up to 10x)
• Group income protection
• Flexible opt-in extras such as a health care cash plan, dental insurance, gym membership, critical illness cover and cycle to work scheme
• Employee assistance program providing mental health and wellbeing support
• Professional membership reimbursement (discretionary)

What the role will involve

• Interface with business leaders on strategic planning and design of Cloud and compute services, security, voice, data, centre and NOC.
• Providing technical expertise and support in troubleshooting issues and optimising performance.
• Designs and troubleshoot documents, implements - (2 / 3 VPC VDC Datacentre Zones, Spanning Tree, VRF, VTP, VLANs & cabling) problem isolation and resolution.
• Support day-to-day Firewall and Remote Access changes for Palo Alto Networks devices and services.
• Provide technical expertise and support in troubleshooting network issues and optimizing network performance.
• Devises solutions to operational problems within the capacity and limitations of installed equipment.
• Identifies equipment upgrade opportunities and coordinates acquisition, deployment and implementation.
• Identifies and recommends architecture network topology modifications, enhancements, overhauls, migration plans to solve capacity, resiliency or changing business needs.
• Supports network architectural engineering review, change planning and other oversight discussions.
• Create and maintain documentation for use by the network operations, CISO and support teams.
• Support Tier 2-3 team to resolve complex issues.
• Participate in on-call support scheduled weekend outages and disaster recovery activities as required.
• Respond to Cyber Security incidents and proactively engage with relevant stakeholders.
• Primarily office based with occasional travel to other UK and EMEA sites.

What you’ll bring

• Bachelor’s Degree with 8 years of prior related experience or Graduate Degree with 6 years of prior related experience.
• 5-10 years Network / IT Security experience at an Enterprise / large scale level.
• Experience using one or more of the following platforms: Palo Alto Firewall (physical and virtual), Palo Alto Networks services (Threat, Prisma, GlobalProtect, etc.), cloud services (Azure, AWS).
• Certifications such as CISSP, CISA, PCNSE, Security, CCNA.
• Experience with SDWAN implementation and / or support.
• Experience with logging and monitoring tools (Splunk, Spectrum, Thousandeyes, etc.).
• Extensive knowledge and experience of Core Routing and Switching design, configuration and troubleshooting.
• Administration Experience with Hyperconverged technologies such as Nutanix, Cohesity, etc.
• Windows / Linux server administration.

Important to know

Due to the nature of our work many of our roles require a UK nationality and the ability to obtain a security clearance. Applicants who accept a conditional offer of employment must meet the requirement of right to work in the UK and must meet eligibility requirements for access to classified information and will be subject to government security checks.

This position is full time and requires primary office work with occasional travel. The role is senior and requires significant experience.