Senior Network Engineer – L3Harris Technologies
L3Harris is dedicated to recruiting and developing high‑performing talent who are passionate about what they do. Our employees share a dedication to our customers’ mission and pursuit of professional growth. The company fosters an inclusive, engaging environment designed to empower employees and promote work‑life success.
Job Location: Farnborough, UK • Job ID: 30300
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 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.
* Provide technical expertise and support in troubleshooting issues and optimising performance.
* Design, troubleshoot, document, and implement network solutions (VPC, VDC, datacentre zones, spanning tree, VRF, VTP, VLANs, cabling) for problem isolation and resolution.
* Support day‑to‑day firewall and remote access changes for Palo Alto Networks devices and services.
* Devise solutions to operational problems within the capacity and limitations of installed equipment.
* Identify equipment upgrade opportunities and coordinate acquisition, deployment, and implementation.
* Recommend architecture network topology modifications, enhancements, overhauls, migration plans to solve capacity, resiliency, or changing business needs.
* Support 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 of 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.
* 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.
Seniority level
Mid‑Senior level
Employment type
Full‑time
Job function
Information Technology
Industries
Defense and Space Manufacturing
Equal Opportunity Employer
L3Harris Technologies is proud to be an Equal Opportunity Employer. We are committed to maintaining a workplace that is free from unlawful discrimination and offers equal opportunities for all. Applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief, and marriage and civil partnerships.
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