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Workday

Site Reliability Engineer – SRE

Workday

SRE Engineer designing, developing and improving software capabilities for customers at Barclays. Collaborating with teams, ensuring code quality, and adopting secure coding practices.

Posted 5/28/2026full-timeGlasgow • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies
AWSAzureCloudDistributed SystemsGoogle Cloud PlatformPrometheusPythonTerraform

About the role

Key responsibilities & impact
  • To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues.
  • Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools.
  • Ensuring that code is scalable, maintainable, and optimized for performance.
  • Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.
  • Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing.
  • Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth.
  • Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions.
  • Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.

Requirements

What you’ll need
  • Good SRE experience with experience implementing reliability practices, defining SLOs/error budgets, uptime and supporting incident response for multi-layered distributed systems.
  • Proficient in cross region cloud platforms (AWS/Azure/GCP), observability tools (Prometheus, CloudWatch), and automation frameworks with experience of reducing toil.
  • Solid infrastructure as code skills (Terraform, CloudFormation) with experience building self-service platforms, tooling, and deployment pipelines for engineering teams.
  • Demonstrated ability in capacity planning, performance tuning, and cost optimisation with experience managing production systems at significant scale.
  • Experience in observability and monitoring, metrics collection, logging, distributed tracing and dashboard creation.
  • Security experience including encryption, secrets management, authentication and authorisation standards including OAuth, SAML and API Key Management.
  • Programming and/or scripting experience with Python for automation and monitoring.
  • Experience with modern testing approaches including chaos and performance testing.
  • Understanding of Large Language Models and Agentic frameworks.
  • Self-starter with leadership experience mentoring SREs, running post-mortems, and driving reliability improvements across engineering teams with good collaboration skills.
  • Bachelor’s degree in computer science or related field with depth in systems engineering, networking, and distributed systems design.

Benefits

Comp & perks
  • Health insurance
  • Retirement plans
  • Paid time off
  • Flexible work arrangements
  • Professional development opportunities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
software developmentprogramming languagesscalable codeunit testingSRE practicesinfrastructure as codecapacity planningperformance tuningPythonchaos testing
Soft Skills
cross-functional collaborationcode qualityknowledge sharingleadershipmentoringcollaboration
Certifications
Bachelor’s degree in computer science