Senior Site Reliability Engineer

About the job Join the UK’s Premier Parcel & Post Delivery Company At Evri Premium, technology is at the heart of delivering exceptional services to millions of customers. We're looking for a talented Senior Site Reliability Engineer to join our growing technology team and help build resilient, scalable, and secure platforms that support our business-critical applications. The Role As a Senior Site Reliability Engineer, you'll play a vital role in ensuring our applications and infrastructure are reliable, performant, and scalable. Working closely with development squads, architecture teams, and service management functions, you'll help drive automation, improve deployment processes, establish service reliability standards, and support the delivery of high-quality IT services. This is an exciting opportunity for someone who enjoys solving complex operational challenges, improving engineering practices, and influencing technology standards across a large-scale organisation. Key Responsibilities: Improve software development efficiency through tooling, automation, infrastructure resilience, security, and cost optimisation initiatives. Support teams in resolving operational challenges relating to availability, performance, and scalability. Define, influence, and measure Service Level Objectives (SLOs), Service Level Indicators (SLIs), and non-functional requirements. Create monitoring solutions and dashboards to provide visibility of key service metrics. Support reliable application deployments and enable rapid issue detection and rollback processes. Ensure security best practices are embedded across platforms and services. Identify and escalate deviations from technology standards through the Technical Design Authority (TDA). Contribute to the development and promotion of the SRE service catalogue. Maintain documentation, runbooks, and operational knowledge sharing across teams. Support and develop junior engineers within the team. Manage and support shared services used across development, testing, and production environments, including CI/CD and automation tooling. What We're Looking For Essential Skills & Experience Experience working with AWS cloud environments. Strong Linux and/or Windows administration skills. Experience with Infrastructure as Code and configuration management tools such as Ansible and CloudFormation. Hands-on experience with CI/CD tooling such as Jenkins, Concourse CI, GitLab, or similar platforms. Experience with containerisation technologies including Docker and container registries. Scripting experience using Bash, Python, Go, or similar languages. Ability to analyse, troubleshoot, and resolve complex technical issues in production environments. Strong communication and stakeholder management skills, with the ability to work effectively across technical teams. Desirable Degree in Computer Science or a related technical discipline, or equivalent practical experience. Software development background. Knowledge of Java. Experience mentoring or supporting junior engineers. What We Can Offer You We're proud to offer a workplace where everyone can thrive: At least 33 days annual leave including Bank Holidays Career progression and development opportunities Flexible and inclusive benefits package Shopping vouchers, insurance and healthcare options Free digital GP service for you and your family Retail discounts Bonus schemes (grade dependent) 50% discount on sending parcels through Evri Cycle to Work scheme Employee Assistance Programme including free counselling A supportive culture where people are encouraged, developed and valued We Are Evri — Where Everyone Is Welcome At Evri Premium, we grow when our people do. We're committed to creating a truly inclusive and diverse workplace where everyone can bring their authentic selves to work. We aim to reflect the diversity of the customers we serve across the UK and ensure every colleague feels valued and supported. We're excited for the future — let's deliver it together.