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Job Details


Senior Cyber Security Architect ( R-00061840 )

Law Enforcement and Security

Diplomatic Security



Glasgow, Scotland, United Kingdom


Job Description:

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.

As a security architect you will be able to work with minimal direction or a range of large and small programmes. You will ensure that a security design allows Leidos to offer assurance to our client, backed up by accreditation and certification to the customers’ requirements, normally ISO27001.

You will have responsibility for interfacing to security design partners across programmes, both customer and supplier representatives. You will ensure that Leidos can establish and maintain an effective and efficient security architecture for a programme, and that the designs will be able to adapt as customer requirements, legislation etc change over a programme lifespan.

You will have a complete understanding of cyber risk. Based on a strong ability to communicate risk and management, you will know how the community is addressing this issue in cloud technologies and the challenges associated with accrediting systems win public and private cloud environments. These challenges will include assuring our clients that our solutions are at the forefront of this.

You will be required to develop high and low level security architecture designs for systems intended for secure/sensitive environments, with appropriate security based on detailed risk analysis.

Within a programme, the role will primarily be responsible to a solution architect for developing and delivering the assigned elements of a solution. You will be required to work in both delivery and proposal environments. You may be required to work on multiple programmes at the same time and these may include bids, implementation of new systems and transformation of existing systems.

The Leidos client base includes a number of national government departments and arms-length bodies, local authorities and providers of critical national infrastructure. We take our security obligations very seriously and will ensure there is a strong security component to all our proposals, and will be able to demonstrate a sound security operation is enabled by the solution we design for our clients.


British - Non-dual national – many of our projects have nationality restrictions

SC cleared – Candidates should be willing to undergo SC, and if required, DV clearance.

Process Skills/Experience

  • Experience of a taking a defence in depth and multi layered approach to security architecture

  • Experience of applying commensurate detective and protective security controls to reduce risk to an acceptable level

  • Understanding of the controlling processes for the systems engineering lifecycle (e.g. requirements management, configuration management)

  • Understanding of different lifecycles/methodologies (waterfall, incremental, agile, DevOps)

  • Experience of the key engineering lifecycle reviews – e.g. System Requirements Review (SRR), Critical Design Review (CDR)

  • Experience in performing design trade off working with other architects and engineers to deliver an integrated and coherent solution

  • Experience of the a significant portion of the systems engineering lifecycle (from requirements analysis through to acceptance)

  • Experience working in both delivery and proposal environments

Technology skills/Experience

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

  • Experience in defining derived security requirements for a system, and managing traceability

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

  • Experience in producing security documentation sets (such as SyOPS, RMADs, Security Management Plan)

  • Understanding of the implementation, operation and maintenance of SIEM products

  • Understanding of network and boundary protection technologies (firewalls, mail gateways, load balancers, anti virus)

  • Understanding of authentication and authorisation technologies (SAML, LDAP, PKI, etc)

  • Understanding of security infrastructure in Public and Private cloud.

  • The ideal candidate will hold CISSP certification

Communication and Soft Skills

  • Excellent verbal and written communication skills and works well in a team environment;

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

  • Ability to communicate complex technical ideas across a range of different audiences ((junior team members, peers, technical professionals, bid teams, vendors, accreditors, and customers).

  • A good level of commercial awareness that will support the bid and delivery environments.


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, childcare vouchers and cycle to work scheme)

External Referral Bonus:Ineligible

External Referral Bonus $:

Potential for Telework:Yes, 10%

Clearance Level Required:Other Clearance

Travel:Yes, 25% of the time

Scheduled Weekly Hours:37.5


Requisition Category:Professional

Job Family:Security Architecture and Engineering

Pay Range: