Cryptography PKI & SSH Engineer

Effectively monitor and maintain the bank's critical technology infrastructure and resolve more complex technical issues while minimising disruption to operations.

Provide technical support for the service management function to resolve complex issues for a specific client or group of clients. Develop the support model and service offering to improve service to customers and stakeholders. Execute preventative maintenance tasks on hardware and software, use monitoring tools/metrics to identify potential issues, and ensure optimal performance. Maintain a knowledge base with detailed documentation of resolved cases for future reference, self service opportunities, and knowledge sharing. Analyze system logs, error messages and user reports to identify root causes of hardware, software and network issues, and provide resolution by fixing or replacing faulty components, reinstalling software or configuring changes.

Implement automation, monitoring enhancements, capacity management, resiliency, business continuity management, front office specific support and stakeholder management. Identify and remediate or raise potential service impacting risks and issues through the appropriate process. Proactively assess support activities and implement automations to maintain stability and drive efficiency. Actively tune monitoring tools, thresholds and alerting to ensure issues are known when they occur.

Advise and influence decision making, contribute to policy development and take responsibility for operational effectiveness. Collaborate closely with other functions and business divisions. Lead a team performing complex tasks, using professional knowledge and skills to deliver work that impacts the whole business function. Set objectives, coach employees and appraise performance. Demonstrate leadership behaviours: Listen, Energise, Align, Develop. For individual contributors, lead collaborative assignments, identify needs for specialist inclusion, establish new directions and guide through structured assignments. Consult on complex issues, mitigate risk, develop new policies and procedures, manage risk and strengthen controls relative to the work done. Engage in complex data analysis and communicate complex information effectively. Influence stakeholders to achieve outcomes. Demonstrate Barclays values of Respect, Integrity, Service, Excellence and Stewardship, and the Barclays Mindset of Empower, Challenge and Drive.

Join Barclays as a Cryptography PKI and SSH Engineer: design, implement and manage secure cryptographic and access control systems. Ensure encryption, key management and secure communication comply with internal security policies and external regulatory standards. Collaborate with system, network, and security teams to integrate Zero Trust principles, manage SSH tunneling, harden systems and ensure secure connectivity. Participate in on call support (24/7) to respond to urgent incidents, resolve cryptographic or access failures, and maintain service continuity.

Ability to design, implement, and maintain SSH-based secure frameworks aligned with banking security policies and regulatory requirements.
Deep understanding of encryption standards and secure key management practices, primarily centred around PKI and SSH.
Strong understanding of Unix/Linux/Windows system administration.

• Networking and security troubleshooting.
• Scripting capability (e.g., Python, Go).
• Working knowledge of relevant financial security standards such as ISO 27001, NIST, and FIPS 140-3.

Additional assessment may focus on risk and controls, change and transformation, business acumen, strategic thinking, digital and technology expertise, and job specific technical skills. Position based in Knutsford.