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- Tasks: Shape secure digital solutions and influence the future of our cyber security.
- Company: Join Southern Water, a leader in digital transformation and essential services.
- Benefits: Competitive salary, hybrid working, and opportunities for professional growth.
- Other info: Dynamic role with occasional travel and engagement across diverse teams.
- Why this job: Make a real impact on securing vital services for communities.
- Qualifications: Experience in designing secure solutions and knowledge of industry frameworks.
The predicted salary is between 60000 - 80000 £ per year.
Closing Date: 2026-03-31
Location: Durrington, hybrid working
Contract Type: Permanent
Hours: 37 hours per week
Salary: To be discussed at screening stage
About the role:
Southern Water is undergoing a major digital transformation modernising platforms, strengthening resilience and enhancing cyber security across both IT and operational technology (OT) environments. Our customers and communities rely on us every day, and keeping our systems secure is central to protecting essential services. As our Security Architect, you'll play a pivotal role within our Digital Architecture function. You'll work alongside solution architects, security specialists, engineering teams, platform owners and senior stakeholders, shaping secure-by-design principles from the very beginning of the delivery lifecycle. This is a role where your expertise will directly influence the future of our digital estate and strengthen our security posture across the organisation.
What you will be responsible for:
- Defining and assuring security architecture for new and evolving solutions across applications, infrastructure, cloud, data, integration and OT environments.
- Embedding secure-by-design principles into all technology design and delivery processes.
- Translating policy, standards and risk appetite into practical, actionable designs and patterns.
- Identifying and advising on security risks, ensuring appropriate mitigation or formal risk acceptance.
- Providing expert guidance to architecture forums, governance boards and design authorities.
- Supporting solution architects and engineering teams in defining clear security and non-functional requirements.
- Leading or contributing to threat modelling, vulnerability assessments and penetration testing activities.
Additional requirements specific to the role:
- Occasional travel across Southern Water sites and operational locations.
- Participation in governance and design authority forums.
- Engagement with both IT and OT stakeholders, including regulated and safety-critical environments.
What you'll bring to the role:
Essential experience designing and assuring secure solutions across Azure, on-premise and hybrid environments. Strong knowledge of industry frameworks such as NCSC guidance, NIST CSF/800-53, ISO 27001/2 or SABSA. Understanding of identity.
Security Architect employer: Southern Water
Contact Detail:
Southern Water Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Security Architect
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, attend meetups or webinars, and connect with potential colleagues on LinkedIn. The more people you know, the better your chances of landing that Security Architect role.
✨Tip Number 2
Show off your skills! Create a portfolio or a personal website showcasing your projects, especially those related to security architecture. This gives you a chance to demonstrate your expertise beyond just a CV.
✨Tip Number 3
Prepare for interviews by brushing up on common security scenarios and frameworks like NIST CSF or ISO 27001. We want you to be ready to discuss how you’d tackle real-world challenges in the role.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at Southern Water.
We think you need these skills to ace Security Architect
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Security Architect role. Highlight your experience with secure solutions, especially in Azure and hybrid environments. We want to see how your skills align with our needs!
Showcase Relevant Experience: In your application, don’t just list your past jobs. Instead, showcase specific projects or achievements that demonstrate your expertise in security architecture and your understanding of industry frameworks like NCSC guidance or ISO 27001.
Be Clear and Concise: When writing your application, keep it clear and concise. Use straightforward language to explain your experience and how it relates to the role. We appreciate a well-structured application that gets straight to the point!
Apply Through Our Website: We encourage you to apply through our website for the best chance of being noticed. It’s the easiest way for us to track your application and ensure it reaches the right people. Don’t miss out on this opportunity!
How to prepare for a job interview at Southern Water
✨Know Your Security Frameworks
Make sure you brush up on your knowledge of industry frameworks like NCSC guidance, NIST CSF/800-53, and ISO 27001/2. Be ready to discuss how you've applied these in past roles, as this will show your expertise and understanding of security architecture.
✨Demonstrate Secure-by-Design Principles
Prepare examples of how you've embedded secure-by-design principles into technology design and delivery processes. This is crucial for the role, so think about specific projects where you influenced security from the ground up.
✨Engage with Stakeholders
Since you'll be working with various stakeholders, practice articulating how you would communicate security risks and solutions to both technical and non-technical audiences. Being able to bridge that gap is key to success in this position.
✨Showcase Your Problem-Solving Skills
Be ready to discuss past experiences where you identified security risks and implemented effective mitigation strategies. Use the STAR method (Situation, Task, Action, Result) to structure your answers and highlight your problem-solving abilities.