Principal Security Architect - Applications & Data

Principal Security Architect - Applications & Data

Principal Security Architect - Applications and Data
£80,000 to £90,000 plus great benefits including private healthcare and a company car or car allowance (Work Level 4)
Manchester city centre - in this role you'll split your time between home and the office twice per month (find out more about our hybrid working policy at

We're open to applications from people who may require flexible working arrangements. There'll be an opportunity to discuss your flexible working requirements during the interview process, and at offer stage.

We're reshaping our Digital, Technology and Data function for the future, creating new opportunities, strengthening our capability, and building clearer, more resilient ways of working so we can deliver even better services for our Co-op, our colleagues, members and customers.

We're looking for a Principal Security Architect to join our Technology team and provide expert leadership and oversight around our applications and data security architecture. In this role, you'll help ensure security is designed into our products, platforms, applications and data services from the outset, providing strategic direction, governance and assurance across some of our Co-op's most important technology.

Why this role matters

As we continue to evolve our technology landscape at Co-op, it's vital that we protect critical applications, services, and data across our business. By embedding secure-by-design principles into everything from cloud platforms and APIs to customer data and digital products, you'll help reduce risk and make sure we're delivering technology in the right way.

What you'll do

Lead our application and data security architecture, setting standards, principles, and best practices as per Industry Frameworks (NIST, CIS and Zero Trust)
Make sure secure-by-design approaches are embedded into applications, platforms, APIs, cloud solutions, and data services using the Shift left methodology
Provide expert security guidance and assurance across the wider business
Lead threat modelling activities and support informed decision-making around security risks, controls, and trade offs
Define and maintain security patterns covering areas such as secure development, data protection, access management, cryptography, and API security
Contribute to architecture governance, audits, and regulatory reviews
Collaborate with architects, engineers, and senior colleagues to drive secure, resilient, and scalable technology outcomes across Co-op

What you'll bring

We're committed to making our roles as accessible as possible, so we only ask for the minimum criteria. To thrive here, you'll need to bring:

Strong experience in cloud-native architecture, including API integration, microservices, Kubernetes, and secure software development across Azure and/or AWS
Good knowledge of security frameworks and standards, including NIST CSF, MITRE ATT&CK, OWASP, and how to apply security controls in DevOps platforms and processes
Experience working across enterprise and solution architecture, with strong knowledge of application security, data security, and modern engineering practices
Experience securing enterprise applications such as SAP, Salesforce, or Dynamics, and large-scale data platforms such as Data Lake, S3, or Databricks
Knowledge of data loss prevention, data lifecycle management, and relevant regulations such as GDPR
The ability to influence senior partners and provide clear technical leadership

We know some people may hesitate to apply if they don't meet every requirement. At Co-op, we're committed to building diverse and inclusive teams, so if you're excited about this role but your experience doesn't align perfectly, we still encourage you to apply.

Why Co-op?

At Co-op, we're owned by our members. And because we're owned by you, we can do right by you. So when you join us, you're not just taking a job, you're joining a movement. We're an organisation that puts people and communities first, and we're powered by purpose. We want this to be a place where you can thrive, so you'll also receive:

An annual bonus (based on personal and business performance)
28 days holiday (rising to 32 with service) plus bank holidays
A pension with up to 10% employer contributions
A company car or £6,000 car allowance
Private healthcare
Access to a subsidised onsite gym (at our Manchester HQ)
30% discount on Co-op products and 10% off other brands
Stream - early access to a percentage of your pay as you earn it
Virtual healthcare including GP appointments, mental health support, nutrition and fitness advice
24/7 colleague support service
Training and support for your development and career progression
Cycle-to-work scheme

A place you'll belong

We're building diverse teams that reflect the communities we serve. We welcome applications from everyone, and our support centre is an inclusive environment where all our colleagues can thrive.

If you have a disability, we'll make reasonable adjustments to support you through the recruitment process. We're also proud to be part of the Disability Confident scheme - if you're disabled and you meet the minimum criteria for this job, we'll guarantee you an interview.

Learn more about our recruitment process at

Explore our commitments to diversity, inclusion and wellbeing at

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