Network Engineer

Clearance: High level of clearance required (SC/DV – \’Developed Vetting\’)

Work Type – Fixed-Term 18 month contract

UNLEASH YOUR POTENTIAL

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams in the UK to address some of the most complex problems in defence, government, safety and security, and transportation. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

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Are you ready for your next career challenge?

Everything we do is built on a commitment to do the right thing for our customers, our people and our community. Our mission and our values guide the way we do business. The foundation of our Leidos culture is our Values, Beliefs and Expectations by which we select, recognise and reward employees. They create the environment that drives us toward our mission.

Inspired to make a difference, we are committed to solving the world’s toughest problems.

Passionate about customer success by being determined to understand and respond to our customers’ needs as if they were our own.

United as a team, we are bound together by our conviction that ethics and integrity is core to how we operate. We operate a high paced and exciting collaborative working environment where the work you do is normally customer facing on site and has demonstrable real world impact.

The role will require working on secure Government sites up to 5 days per week. You will be expected to contribute towards the creation and ongoing maintenance of technical documentation and, while primarily supporting the operational service, also be able to provide material to support change projects if required.

Work will be on customer sites (West London) with occasional travel to other Leidos and customer sites (Huntingdon) that may be required. Keeping an eye on the technology landscape is essential, too – identification of new and relevant technologies to solve problems and make improvements is part of the job. We believe innovation is the lifeblood of customer value – we are all catalysts for innovation and improvement and committed to continuous improvement in everything we do.

The preferred candidate will demonstrate effective application of Network Engineering expertise and extensive knowledge across a variety of technologies and Platforms, Environments, Virtualized Environments, Networking Technologies and Data Storage Technologies. The role will provide technical exposure variance across both outcomes based project activities and Operational (Business as Usual) support activities.

Your passions and experience will help you become a technical specialist and process owner with our Operations Support services including service improvement and add further value to our service offerings. You will be expected to contribute towards the creation and ongoing maintenance of technical documentation (HLDs, LLDs, Work Instructions) and provide material to support the Project work or the Operational Support service.

Your Role and Responsibilities.

Provide Network Engineering skills and produce solution designs as part of the senior delivery team

Work with partner delivery teams to design and implement modern, scalable Network using a range of new and emerging technologies including automation

Lead on all Network management and acceptance aspects including setting standards and providing your deep technical expertise to Leidos programme teams

Utilise the concepts and principles of verification and validation to produce relevant Network Designs across multiple subject areas

Collaborate with customers on all aspects of Network management including the assurance and integration of Network services to meet the needs of multiple lines of business

Recognise and exploit business opportunity by leveraging engineering and design best practice

Communicate effectively across organisational, technical and political boundaries, understanding the context

Strong knowledge and demonstrable experience of data centre and campus networking technologies: Cisco (routing, switching, firewalls), Fortinet (Fortigate and FortiSwitch), Palo Alto (Next Gen firewalls), Juniper SRX, F5 (global and local load balancing) and Encryption.

Strong understanding of routing protocols (static and dynamic) in data centre, campus and wide area networks.

Experience and knowledge of networking – L2/3 networking and routing

Strong experience of operating high availability data centre networks supporting critical workloads on Windows, Linux and SAN including technical refresh of large numbers of devices;

Strong experience of monitoring and management tooling including SolarWinds.

Have good general knowledge of Windows Server Environments, (including OS build, AD, DNS, DHCP and GPO) and Linux (RHEL) data centre server infrastructures.

Have excellent analysis and problem solving skills, taking ownership of complex incidents ensuring these are resolved to the satisfaction of the customer.

Possess excellent written and verbal communication skills.

Experience with working within a Defence environment.

Other/ Clearance Requirements: Hybrid working policy SC/DV required. Ability to obtain a high level of security clearance to work on programme.

What we do for you:

At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance.

We provide an employment package that attracts, develops and retains only the best in talent. Our reward scheme includes:

• Contributory Pension Scheme

• 33 days Annual Leave (including public and privilege holidays)

• Access to Flexible benefits (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme)

Commitment to Diversity:

We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages please let us know, and we will respond in a way that best fits your needs.

Who We Are:

Leidos UK & EUROPE – we work to make the worldsafer,healthier, andmore efficient through technology, engineering andscience.

Leidos is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation.

Original Posting:

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Please note that if you are NOT a passport holder of the country for the vacancy you might need a work permit. Check our Blog for more information.

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Created on 10/07/2025 by TN United Kingdom

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