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PKI Cryptography Engineer

Knutsford, United Kingdom

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Key information

Date live: 10/02/2026

Business Area: Chief Information Security Office

Area of Expertise: Technology

Contract: Permanent

Reference Code: JR-0000086590

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It’s happening at Barclays.

Be a part of a place where challenges are measured in billions, qubits and nanoseconds. Build your career in an environment where we’re advancing machine learning, leveraging blockchains, and harnessing FinTech. Working in Barclays technology, you’ll reimagine possibilities: learning and innovating to solve the challenges ahead, delivering for millions of customers.
We are shaping the future of financial technology.
Why not join us and make it happen here?

Where will you be located?

Explore location

Join Barclays as a PKI Cryptography Engineer within the Chief Information Security Office (CISO), where you’ll play a vital role in protecting the organisation through secure and resilient PKI and digital certificate services used across the bank. In this role, you’ll provide support to users across Barclays, handling PKI and digital certificate queries while supporting and maintaining core PKI services. This includes certificate lifecycle management, infrastructure maintenance, and contributing to initiatives that move our services toward greater automation and autonomy, while staying up to date with industry best practices.

You’ll bring experience in PKI, cryptography, and lifecycle management, with any coding experience seen as a strong advantage. Knowledge of HSMs and Windows-based PKI environments is beneficial and will help you succeed in this technically hands-on role.

The role follows anchor days on Monday and Tuesday and operates on standard UK hours (9 AM–5 PM), with 24/7on-call support rotation of 1 in every 8 weeks and paid overtime. You can expect occasional data centre visits to install hardware; while weekend on-site attendance is not required, weekend shift coverage may be scheduled as part of on-call support.

To be successful in this role, you will need the following:

  • Strong understanding of PKI concepts, X.509 certificates, encryption algorithms, and certificate lifecycle.
  • Exposure to enterprise PKI tools (Venafi, DigiCert, Entrust, EJBCA), hands-on experience managing Certificate Authorities, CRL/OCSP, and secure key storage (HSMs), including backup and disaster recovery procedures.
  • Ability to diagnose and resolve certificate related issues across applications, networks, and operating systems, including trust chain failures, expired certificates, and misconfigurations.

Some other highly valued skills may include:

  • Experience with PowerShell, GO, Python, or Bash to automate certificate provisioning, renewal, and monitoring.
  • Ability to enforce security policies, audit PKI environments, and ensure compliance with standards such as NIST, ISO 27001, and industry best practices.
  • Familiarity with PKI in cloud platforms (AWS, Azure) and integrating certificates into CI/CD pipelines, containers, and Kubernetes environments.
  • A clean driving license would be considered an advantage.

You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen, strategic thinking and digital and technology, as well as job-specific technical skills.

The successful candidate will be based in Radbroke Hall, Knutsford.

Purpose of the role

To manage and monitor the banks cryptographic assets, for all use cases, whilst ensuring the confidentiality, integrity, and authenticity of sensitive data, both through BAU support and On-Call support as part of a 24/7 global team. 

Accountabilities

  • Collaboration with internal and external customers and stakeholders to understand and identify cryptographic needs across the organisation, sharing best practices including solutions to business applications and processes.
  • Execution of security assessments and penetration testing to identify vulnerabilities in cryptographic implementations and procedures and guide the implementation of mitigation strategies and communicate findings to relevant findings to relevant senior stakeholders.
  • Implementation and monitoring of cryptographic solutions used in various banking applications to ensure they function correctly and meet the Cryptography Standard.
  • Development of training content for colleagues to share expertise on cryptographic concepts, best practice and security procedures in line with Standards and Industry regulations. Contribute to the creation of technical documentation and specifications related to cryptographic designs and implementations. Provision of subject matter expertise in cryptography methodologies.
  • To manage and support the service management of cryptography solutions consumed by the Bank globally, in line with Technology Controls and Standards, including but not limited to Incident/Problem/Change/Vulnerability Management.
  • Understanding of industry cryptographic principles including algorithms, protocols and technologies including symmetric and asymmetric keys, digital signatures, key exchange and encryption. Advocate the improvement and implementation of security controls when appropriate.
  • Presentation of complex ideas effectively to technical and non-technical audiences at all levels of Leadership.

Analyst Expectations

  • To perform prescribed activities in a timely manner and to a high standard consistently driving continuous improvement.
  • Requires in-depth technical knowledge and experience in their assigned area of expertise.
  • Thorough understanding of the underlying principles and concepts within the area of expertise.
  • They lead and supervise a team, guiding and supporting professional development, allocating work requirements and coordinating team resources.
  • If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.
  • OR for an individual contributor, they develop technical expertise in work area, acting as an advisor where appropriate.
  • Will have an impact on the work of related teams within the area.
  • Partner with other functions and business areas.
  • Takes responsibility for end results of a team’s operational processing and activities.
  • Escalate breaches of policies/procedure appropriately.
  • Take responsibility for embedding new policies/procedures adopted due to risk mitigation.
  • Advise and influence decision making within own area of expertise.
  • Take ownership for managing risk and strengthening controls in relation to the work you own or contribute to. Deliver your work and areas of responsibility in line with relevant rules, regulation and codes of conduct.
  • Maintain and continually build an understanding of how own sub-function integrates with function, alongside knowledge of the organisations products, services and processes within the function.
  • Demonstrate understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.
  • Make evaluative judgements based on the analysis of factual information, paying attention to detail.
  • Resolve problems by identifying and selecting solutions through the application of acquired technical experience and will be guided by precedents.
  • Guide and persuade team members and communicate complex/sensitive information.
  • Act as contact point for stakeholders outside of the immediate function, while building a network of contacts outside team and external to the organisation.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

Barclays welcomes applications from all candidates and is committed to ensuring reasonable adjustments (accommodations) are put in place to allow for a fair and inclusive recruitment process. For more information and how to request one, please review Adjustments to the recruitment process.

We’re a global, vital and highly respected financial organisation with an inspiring Purpose. Operating in 39 countries and employing around 100,000 people across the world, we help communities, individuals and businesses thrive. And we’ve created financial solutions and technology that the world now takes for granted. A career with us can offer incredible variety, depth and breadth of experience, and the chance to learn from some of the best minds in technology and finance.

To find out more about Barclays' strategy please click here.

We are an equal opportunity employer and opposed to discrimination on any grounds. It is the policy of Barclays to ensure equal employment opportunity without discrimination or harassment on the basis of race, colour, creed, religion, national origin, alienage or citizenship status, age, sex, sexual orientation, gender identity or expression, marital or domestic/civil partnership status, disability, veteran status, genetic information, or any other basis protected by law.

Barclays is required by law to confirm that you have the Legal Right to Work in any role that you apply for. If you currently hold a work visa sponsored by Barclays, or you would require sponsorship from Barclays, you must declare this as part of your application. Sponsored visas are role and entity specific and any changes must be reviewed. It is important that you ensure you are working on the correct visa at all times. Failure to accurately disclose your visa status or Legal Right to Work may result in your application or any employment offer being withdrawn at any time.

Who succeeds in
Tech at Barclays?

For a career with us, you need to be prepared to take big steps forward, curious to face the challenges ahead, and driven to focus on the outcomes. We need people with the Barclays mindset to make it happen here.

Qualities we look for:motivator, supporter, connector, driver, communicator, transformer, maker, observer

What you'll get in return

Competitive holiday allowance
Life assurance
Private medical care
Pension contribution

Our technology

Supporting our 48 million customers and clients worldwide takes a lot of forward thinking. It means harnessing technology to support the economy. It means making a difference to people’s lives. And it requires the maintenance and development of a global, technological infrastructure. At Barclays, technology helps us keep transactions moving, manages data, and protects our customers. Join a world where your work creates unique moments of impact. Make it happen here.

This is Barclays Manchester

Barclays Knutsford is a world-class campus in the heart of the Cheshire countryside, and at the centre of our global operations. The place where it all happens. The place where we deliver the technology, security and customer care that our personal and corporate banking customers rely on 24/7/365.

Our redeveloped campus offers state-of-the art, collaborative workspaces set within 64 acres of lush gardens and surrounded by wildlife.

To ensure our campus is accessible to everyone, we offer a shuttle bus from the local bus, tram, and train stations on weekdays.

There are endless opportunities to socialise, pursue personal interests, visit the onsite gym, or join one of our many clubs and groups.

We run amazing experiences, from firework displays to gigs, diverse celebrations and art & crafts sessions. There’s something for you.

This is Barclays Manchester

Barclays Knutsford is a world-class campus in the heart of the Cheshire countryside, and at the centre of our global operations. The place where it all happens. The place where we deliver the technology, security and customer care that our personal and corporate banking customers rely on 24/7/365.

A workplace like no other

Our redeveloped campus offers state-of-the art, collaborative workspaces set within 64 acres of lush gardens and surrounded by wildlife.

Your commute

To ensure our campus is accessible to everyone, we offer a shuttle bus from the local bus, tram, and train stations on weekdays.

Much more than work

There are endless opportunities to socialise, pursue personal interests, visit the onsite gym, or join one of our many clubs and groups.

Immersive events

We run amazing experiences, from firework displays to gigs, diverse celebrations and art & crafts sessions. There’s something for you.

Barclays

Working flexibly

We’re committed to providing a supportive and inclusive culture and environment for you to work in. This environment recognises and supports your personal needs, alongside the professional needs of our business. If you'd like to explore flexible working arrangements, please discuss this with the hiring manager. Your request will be reviewed in-line with the requirements of the role/business needs of the team.

Hybrid working

We have a structured approach to hybrid working, where colleagues work at an onsite location on fixed, ‘anchor’, days, as set by the business area. Please discuss the working pattern requirements for the role you are applying for with the hiring manager. Please note that working arrangements may be subject to change on reasonable notice to ensure we meet the needs of our business.

Barclays is built on an international scale.

Our geographic reach, our wide variety of functions, businesses, roles and locations reflect the rich diversity of our worldwide customer base. All of which means we offer incredible variety, depth and breadth of experience. And the chance to learn from a globally diverse mix of colleagues, including some of the very best minds in banking, finance, technology and business. Throughout, we’ll encourage you to embrace mobility, exploring every part of our operations as you build your career.

Find more information

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