Vacancy Details

Head of Security Architecture

Job number: SP06137
Profession: IT & Information Services
Location: Sellafield or Risley
Contract type: Permanent contract
Salary: Competitive
Posting date: 20/12/2024
Closing date: 12/01/2025
Blend personal growth and professional development with purposeful work

At Sellafield Ltd, we are harnessing our expertise; bringing together world-class skills and innovative technology to solve complex nuclear, infrastructure, and engineering challenges. By joining Sellafield Ltd, you join an amazing team of people, from all walks of life, where you can thrive in a connected, considerate culture of innovation, collaboration, and community; and play a significant part in the UK’s sustainable nuclear future.

The challenges we face are amongst the most complex anywhere in the world. We are using advanced technologies to shape, create and advance the world’s nuclear decommissioning knowledge and capability. That’s why our work is driven by people with a passion for problem-solving and innovation.


About the role

We are seeking a Head of Security Architecture to take on a leading role in the Cyber function at Sellafield, defining and communicating the IT Security Architectural Framework, including policies and standards, across the organisation.

This is an exciting time to join Sellafield and make a real impact in developing our cyber capabilities in-house. The Head of Security Architecture will support the CISO in the definition and evolution of the Security Strategy to help deliver the Digital Strategy for the business. This will cover leading the definition of security requirements and design for data, application, and infrastructure architecture, defining cyber security patterns, policies, and standards to shape solution designs.
The role will be accountable for establishing a team and managing an organisational-wide cyber policy refresh. The Head of Security Architecture will play a pivotal part in leading projects, centered around the overhauling of corporate IT and OT, with a variety of other project work that will continue to evolve over the next few years.

This role will appeal to an experienced professional either with a Technical Architectural background currently working in a leadership role, or whether you are seeking an opportunity to take a step up into a senior Head of Security Architecture position, and already possess demonstrable experience in leading significant cyber projects.

This is a great opportunity to be part of an emerging function within Sellafield’s IT community and make a real difference in the evolution of our business.


Key responsibilities:

• Establish and lead a high performing Security Architecture team.
• Lead the definition, development, and maintenance of the organisation’s Enterprise Security Architecture and overall strategic approach to security architecture.
• Support strategic projects with significant security architecture requirements.
• Provide representation on behalf of the CISO at key strategic forums.
• Educate stakeholders on security risk and best practices.
• Prepare and manage the budget for the Security Architecture team in line with ISO/ICT expenditure goals and financial controls.
• Governance, Risk Management and Assurance – Lead security-related quality assurance throughout the project delivery lifecycle to ensure the Security Architectural Framework.
• Identify and deliver appropriate metrics to drive security architecture compliance.


Your skills and qualifications:

• Degree or equivalent qualification or extensive experience in a relevant field, such as computer science, information systems, or a technology security discipline.
• Demonstrable leadership experience in an IT architecture or security architecture role.
• Effective communicator able to distil complex technical concepts to non-technical audiences.
• Expert understanding of security concepts and the latest technology security requirements.
• Detailed knowledge of system architectures.
• Experience working with common security technologies including the M365 security stack, Sentinel & Azure.
• A track record delivering security solutions and technologies from design to operation.
• Deep technical knowledge, able to operate at the highest levels of risk complexity.


Why us?

At Sellafield Ltd, we are committed to supporting our employees in fulfilling their potential. With having 100 years of work in front of us, we offer comprehensive training and development opportunities, enabling you to feel inspired in your role. Whatever area you join us in, you’ll find a genuinely exciting and rewarding career.

Making sure our employees feel supported is important to us. Therefore, to help you get the most out of life in and outside of work, we also offer a range of employee benefits:

• You will benefit from an annual bonus of up to 15%, made up of company and personal performance
• An attractive defined contribution pension scheme – the company will match up to 13.5% for a 7% employee contribution!
• 30 days annual leave + bank holidays. Plus, the ability to purchase an extra 2.5 days per year.
• The ability to carry over 10 days annual leave each financial year
• Paid Sick Leave
• Family Friendly Policies – Visit our Rewards & Benefits page to read more
• Cycle to Work Scheme
• Lifestyle Benefits sasra.co.uk
• Learning & Development Opportunities https://careers.sellafieldsite.co.uk/work-with-us/learning-and-development/
• Reward & Recognition Policies.
• Welfare & Employee Assistance Programme
• Free Aviva Health App & Annual Health Check
• MyDiscounts – Employee Savings & Discounts
• MyBenefits – A Charity Giving Scheme
• Many, many more! Click this link to visit our Rewards & Benefits page: https://careers.sellafieldsite.co.uk/work-with-us/rewards-and-benefits/

Sellafield Ltd is a unique place to grow your career, offering a remarkable blend of role variety, job security, personal growth, professional development, and truly significant work. This is your opportunity to tackle some of the biggest challenges in the nuclear, infrastructural and engineering worlds and create a clean and safe environment for generations to come. Explore Sellafield Ltd today.


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