Lead Security Architect

Lead Security Architect

London Full-Time 54000 - 84000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead the design and review of security architectures to protect our systems.
  • Company: Join Post Office, a trusted community staple on a transformative journey into the digital age.
  • Benefits: Enjoy 27.5 days leave, bonuses, car allowance, and extensive learning opportunities.
  • Why this job: Be part of a team that values diversity and drives meaningful change in a vital organisation.
  • Qualifications: Experience in IT and cybersecurity, with strong leadership and communication skills required.
  • Other info: This is a permanent, full-time role based in London, closing applications on 27th May 2025.

The predicted salary is between 54000 - 84000 £ per year.

The Lead Security Architect will design and review system architectures, align with POL's technology principles, and collaborate across functional areas to develop a cohesive security strategy. Support transformation initiatives, establish design principles, and regularly update security measures to mitigate emerging threats and risks. Ensuring POL's Security Architecture capability is effective and minimises risks of compromise and disruption. The Lead Security Architect is a key member of the CISO team, responsible for the delivery of functional strategies, always modelling the Post Office behaviours and demonstrating a Postmaster first mindset.

What we can do for you:

  • 27.5 days annual leave that increases with tenure
  • Up to 18% on target bonus opportunity
  • Car allowance
  • Generous pension contribution
  • Life assurance
  • Income protection after 12 months service
  • Full support from our employee assistance programme and access to our employee benefits platform
  • Ever-evolving learning and development opportunities

Our commitment to embracing diversity extends beyond just words. We actively foster an inclusive workplace that values the unique perspectives and contributions from all colleagues. We hold the belief that Equity, Diversity, and Inclusion are not just vital but fundamental to our success and growth. Our priority lies in shaping a business that mirrors the diverse communities we reach, truly making Post Office 'Everybody's Business'. As an equal opportunity employer, we value and celebrate the differences among our people, ensuring that our practices reflect our dedication to inclusivity and equal representation for all.

What you’ll need to succeed:

  • Professional experience in IT, with a focus on cybersecurity
  • Technical leadership experience, demonstrating the ability to lead security initiatives and collaborate across teams
  • Deep understanding of cybersecurity threats, technologies, and best practices
  • Experience with modern digital architectures such as cloud, data, API, digital, and mobile
  • Knowledge of security domains including endpoint, network, data, hybrid cloud security, and zero trust strategies
  • Experience in leading threat modelling sessions
  • An enabler who can speak with knowledge and confidence in their subject matter, guiding their team to success
  • Excellent influencing and communication skills with the ability to utilise a range of techniques to deliver messages effectively, make an impact, and drive a successful outcome

Post Office is a community staple. We’re trusted. We’re relatable. We’re reliable. We’re steeped in tradition. But we’re on a journey of transformation. We’re focused on the future and working at pace to compete in a digital world to provide the same, personalised experience we’ve always been proud of – and we need fresh talent to help make it possible. We’re looking for people to come to Post Office to re-imagine. Authentic people who rise to big challenges and make big changes. We all have a genuine duty of care for the people we serve – a purpose that guides us forward, no matter what. We’re looking for people who share in that purpose and show that now, and moving forwards, Post Office truly is Everybody’s Business.

Lead Security Architect employer: Post Office Ltd

At Post Office, we pride ourselves on being an excellent employer, offering a dynamic work environment in the heart of London. Our commitment to employee growth is reflected in our extensive learning and development opportunities, alongside a generous benefits package that includes 27.5 days of annual leave and a competitive bonus structure. We foster a culture of inclusivity and diversity, ensuring that every voice is heard and valued, making us not just a workplace, but a community dedicated to meaningful change.
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Contact Detail:

Post Office Ltd Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Lead Security Architect

✨Tip Number 1

Familiarise yourself with the latest cybersecurity trends and technologies. Being well-versed in current threats and best practices will not only boost your confidence but also demonstrate your commitment to staying ahead in the field.

✨Tip Number 2

Network with professionals in the cybersecurity space, especially those who have experience in leadership roles. Engaging with others can provide valuable insights and may even lead to referrals or recommendations for the position.

✨Tip Number 3

Prepare to discuss your experience with modern digital architectures during interviews. Be ready to share specific examples of how you've successfully implemented security measures in cloud, data, and mobile environments.

✨Tip Number 4

Showcase your communication skills by practising how you would explain complex security concepts to non-technical stakeholders. This ability is crucial for a Lead Security Architect and will set you apart from other candidates.

We think you need these skills to ace Lead Security Architect

Cybersecurity Expertise
Technical Leadership
Threat Modelling
Cloud Security
Data Security
API Security
Mobile Security
Zero Trust Strategies
Communication Skills
Influencing Skills
Collaboration Skills
Risk Management
Security Architecture Design
Understanding of Cybersecurity Threats
Knowledge of Digital Architectures

Some tips for your application 🫡

Understand the Role: Before applying, make sure you fully understand the responsibilities of a Lead Security Architect. Familiarise yourself with the key skills and experiences required, such as technical leadership in cybersecurity and knowledge of modern digital architectures.

Tailor Your CV: Customise your CV to highlight relevant experience in IT and cybersecurity. Emphasise your technical leadership roles and any specific projects that demonstrate your ability to lead security initiatives and collaborate across teams.

Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for cybersecurity and your understanding of the Post Office's mission. Mention how your skills align with their needs and how you can contribute to their transformation journey.

Highlight Soft Skills: In addition to technical expertise, emphasise your influencing and communication skills. Provide examples of how you've effectively delivered messages and driven successful outcomes in previous roles, as these are crucial for the Lead Security Architect position.

How to prepare for a job interview at Post Office Ltd

✨Showcase Your Technical Expertise

As a Lead Security Architect, it's crucial to demonstrate your deep understanding of cybersecurity threats and technologies. Be prepared to discuss specific examples from your past experiences where you successfully led security initiatives or implemented modern digital architectures.

✨Communicate Effectively

Excellent communication skills are essential for this role. Practice articulating complex security concepts in a clear and concise manner. Use real-world scenarios to illustrate your points and ensure that you can engage with both technical and non-technical stakeholders.

✨Prepare for Scenario-Based Questions

Expect to face scenario-based questions that assess your problem-solving abilities and decision-making process. Think about how you would approach threat modelling sessions or respond to emerging cybersecurity threats, and be ready to explain your thought process.

✨Emphasise Collaboration and Leadership

Highlight your experience in leading cross-functional teams and collaborating with various departments. Share examples of how you've influenced others and driven successful outcomes in previous roles, showcasing your ability to be an enabler within the organisation.

Lead Security Architect
Post Office Ltd
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  • Lead Security Architect

    London
    Full-Time
    54000 - 84000 £ / year (est.)

    Application deadline: 2027-06-26

  • P

    Post Office Ltd

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