To our valued Leidos candidates:

Coronavirus is on everyone's mind with the effects being felt around the world. The markets are volatile, and we're all concerned for the health and safety of our families, friends, and colleagues. Please know that we're taking all necessary measures to safeguard our employees, customers and the communities in which we live, including following all recommended best practices around social distancing.

With that in mind, in an abundance of caution, we are canceling all face to face career events, such as job fairs and open house events. In the coming days and weeks, we will be hosting career events virtually, using our online chat tools so that we may continue our hiring practice safely and securely. You can find available virtual career events at

We are using telephone meetings and online chats via Brazen to conduct interviews and hiring discussions, and we are offering options for video interviews so that you can have a virtual face to face meeting with your potential new leader. We do not conduct interviews or extend offers via text or chat based social media, such as WhatsApp or MySpace.

Leidos will never ask you to provide payment-related information at any part of the employment application process, nor will Leidos ever advance money as part of the hiring process. And Leidos will communicate with you only through emails that are generated by automated system. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to Chris Scalia, Leidos’ Senior Vice President of Talent Acquisition, at [email protected].

As a company, as a country, as a world, we have confronted challenging moments before. We are confident that, guided by our values and the strength of our community as well as the commitment we have to the important work we do each day, we will find our way through this time together. We will do this with the care and concern for one another and the common good that defines. Please keep those impacted by the virus in your thoughts.

Close Window
Join our talent network

Job #: R-00137316
Location: Remote, GB
Category: Cyber Security Architecture and Engineering
Schedule (FT/PT): Full Time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance Required: UK - NPPV3


Senior Cyber Security Engineer

Location: Mobile Worker, UK Only

Clearance: High-level of Security Clearance Required


We require a  security cleared Senior Cyber Security Engineer that is capable of implementing high- and low-level designs for systems intended for secure/sensitive environments both on premise and cloud (Azure\AWS). The role will primarily be responsible to a Principle Cyber Security Architect for developing and delivering their assigned element of the solution. You will be required to work in proposal, delivery and BAU environments.

As a Senior engineer you will be expected to work with minimum direction, supporting colleagues across the program to ensure the implementation of the technical security environment for the complete solution is robust.

You will have some responsibilities for defining security outcomes when Leidos engages with technical security partners, and with both customer and supplier representatives.

Leidos solutions are accredited so you will need to demonstrate traceability of your approach to the technical and security requirements and respond effectively to testing and remediation activities throughout projects/programmes.

You will understand the security challenges and accreditation requirements of public cloud infrastructure.

Your Role and Responsibilities

  • Excellent understanding of Confidentiality, Integrity, and Availability (CIA) and practical experience in applying that.

  • Experience in defining and tracing through security requirements for a system.

  • Experience and Knowledge of CI/CD pipeline and SecDevOps methodologies.

  • Experience of some portions of the systems engineering lifecycle (from requirements analysis through to acceptance)

  • Experience in producing security documentation sets (SyOPS, RMADs, Security Management Plans, ISMS elements)

  • Experience of the rigorous engineering quality control processes such as peer reviews and independent tests.

  • Understanding of Protective Monitoring systems, their operational application as well as design, implementation, and configuration.

  • Experience working in proposal, delivery or BAU environments.

Other skills

  • Experience of gaining and maintaining accreditation for secure/sensitive systems

  • Understanding of authentication and authorisation technologies (SAML e.g. Keyclock, LDAP e.g. AD and Azure AD, PKI, etc)

  • Experience and knowledge of configuring Azure Security Technologies (Policies, Defender for Cloud, Network Security Groups, key vaults etc.) Vulnerability scanner (Rapid 7) and PKI solutions.

  • Understanding of network and boundary protection technologies (firewalls, mail gateways, load balancers, anti-virus, IPS, IDS.

  • Understanding and Experience with Containerisation technologies such as (Kubernetes, AKS & EKS, Docker)

  • Understanding and Experience Automation & Orchestration (Ansible, Jenkins, Terraform, SonarQube, Jfrog Artifactory, Git, Helm)

  • Experience and Knowledge with Linux & Windows hardening and administration (Debian, Ubuntu, Redhat, Server 2022)

  • Experience and knowledge of configuring and operation of SIEM solutions.

  • The ideal candidate will hold CISSP certification.

Communication and Soft Skills

  • Excellent verbal and written communication skills, works well in a team environment but can also work with minimal supervision.

  • Capable of developing and communicating a vision to meet the System Requirements.

  • A good level of commercial awareness

Are you ready to make an impact? Begin your journey of a flourishing and meaningful career, share your CV with us today!

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
•    Private Medical Insurance
•    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)

•    Dynamic Working 

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 world safer, healthier, and more efficient through technology, engineering and science.

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.

What Makes Us Different:

Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world.  You can inspire change.

Collaboration: having flexibility to do your job is one of our core benefits, enabling you to become part of our extraordinary team.  We have been empowering our people to work flexibly for years.  Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours.          

People: Leidos empowers people from every background to be themselves and gives you the tools to learn new skills by enabling growth whilst developing. We believe that extraordinary people need opportunities to grow, to be inspired and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that enhance your future.

Original Posting Date:


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 only and 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.

   Save Job Saved

Talent Community

Join our Talent Community to create a profile, enabling a streamlined application process and to help our recruiters better understand your areas of expertise and interest.

Join our Talent Community