Site Reliability Engineer

Purpose of the role

To apply software engineering techniques, automation, and best practices in incident response, to ensure the reliability, availability, and scalability of the systems, platforms, and technology through them. 

Accountabilities

• Availability, performance, and scalability of systems and services through proactive monitoring, maintenance, and capacity planning.
• Resolution, analysis and response to system outages and disruptions, and implement measures to prevent similar incidents from recurring.
• Development of tools and scripts to automate operational processes, reducing manual workload, increasing efficiency, and improving system resilience.
• Monitoring and optimisation of system performance and resource usage, identify and address bottlenecks, and implement best practices for performance tuning.
• Collaboration with development teams to integrate best practices for reliability, scalability, and performance into the software development lifecycle, and work closely with other teams to ensure smooth and efficient operations.
• 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.

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.

Join Barclays as a mid‑level Site Reliability Engineer and help us improve the reliability, performance, and visibility of business‑critical pre‑trade platforms in Quantitative Investment Strategies Technology team in Prague. You will build the observability stack (with a focus on the Elastic ecosystem), implement actionable monitoring and alerting, and work closely with engineers, product owners, and business stakeholders to keep our services resilient and measurable.

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

• Hands‑on experience with Elastic Stack (Elasticsearch, Kibana, Logstash/Beats).
• Strong understanding of observability & monitoring (metrics, logs, traces, APM).
• Experience with defining and configuring dashboards, alerts, and SLI/SLOs.
• Basic infrastructure‑management exposure (capacity planning, performance insights, scaling, monitoring).

Some other highly valued skills may include:

• Experience with DevOps tools: GitLab, TeamCity, CI/CD pipelines.
• Scripting/programming in Python, Java or C#.
• Experience with cloud technologies (Kubernetes, service mesh and service discovery, containerization).
• Basic Linux experience.
• Exposure to additional monitoring tools (Grafana, Prometheus, Splunk, etc.).

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 Prague.