Site Reliability Engineer

About Us

Sophos is a global leader and innovator of advanced security solutions for defeating cyberattacks. The company acquired Secureworks in February 2025, bringing together two pioneers that have redefined the cybersecurity industry with their innovative, native AI-optimized services, technologies and products. Sophos is now the largest pure-play Managed Detection and Response (MDR) provider, supporting more than 28,000 organizations. In addition to MDR and other services, Sophos' complete portfolio includes industry-leading endpoint, network, email, and cloud security that interoperate and adapt to defend through the Sophos Central platform. Secureworks provides the innovative, market-leading Taegis XDR / MDR, identity threat detection and response (ITDR), next-gen SIEM capabilities, managed risk, and a comprehensive set of advisory services. Sophos sells all these solutions through reseller partners, Managed Service Providers (MSPs) and Managed Security Service Providers (MSSPs) worldwide, defending more than 600,000 organizations worldwide from phishing, ransomware, data theft, other every day and state-sponsored cybercrimes. The solutions are powered by historical and real-time threat intelligence from Sophos X-Ops and the newly added Counter Threat Unit (CTU). Sophos is headquartered in Oxford, U.K. More information is available at www.sophos.com.

Role Summary

Central Operations is responsible for delivering the infrastructure to provide customer facing systems and cloud services to Sophos customers. The job role requires skill with Linux, cloud computing, automation, CI / CD pipelines, containerized environments and incident management response.

What you will do

• Carry personal responsibility for high quality changes to a live IT / SaaS infrastructure
• Manage key operational systems on which millions of customers depend
• Create estimates and work plans then deliver according to those plans in an agile manner
• Participate in a weekday / weekend on-call rotation
• Occasionally carry out changes outside of normal working hours
• Monitor existing infrastructure, identify areas of weakness and propose improvements
• Take corrective action, as a first point of contact, to resolve incidents escalated from Technical Support, IT and development communities and escalate where appropriate
• Command line configuration and troubleshooting in a cloud-based Linux environment
• Provide incident response and coordination, ensuring issue resolution and helping co-ordinate multiple resources
• Publish software updates as required meeting product release schedules, monitoring load on infrastructure and support, taking corrective action where possible and flagging issues with management
• Providing out-of-hours emergency support

What you will bring

#B2

Ready to Join Us

At Sophos, we believe in the power of diverse perspectives to fuel innovation. Research shows that candidates sometimes hesitate to apply if they don't check every box in a job description. We challenge that notion. Your unique experiences and skills might be exactly what we need to enhance our team. Don't let a checklist hold you back – we encourage you to apply.

What's Great About Sophos

Our Commitment To You

We're proud of the diverse and inclusive environment we have at Sophos, and we're committed to ensuring equality of opportunity. We believe that diversity, combined with excellence, builds a better Sophos, so we encourage applicants who can contribute to the diversity of our team. All applicants will be treated in a fair and equal manner and in accordance with the law regardless of gender, sex, gender reassignment, marital status, race, religion or belief, color, age, military veteran status, disability, pregnancy, maternity or sexual orientation. We want to give you every opportunity to show us your best self, so if there are any adjustments we could make to the recruitment and selection process to support you, please let us know.

Data Protection

If you choose to explore an opportunity, and subsequently share your CV or other personal details with Sophos, these details will be held by Sophos for 12 months in accordance with our Privacy Policy and used by our recruitment team to contact you regarding this or other relevant opportunities at Sophos. If you would like Sophos to delete or update your details at any time, please follow the steps set out in the Privacy Policy describing your individual rights. For more information on Sophos' data protection practices, please consult our Privacy Policy Cybersecurity as a Service Delivered | Sophos

Skills Required

Linux, S3, Postgresql, Datadog, Nosql, Ec2, Mysql, Sns, Automation, Python, Cloud Computing, Rds, Bash, Jenkins, Cloudwatch, Incident Management, Iam, ECS, Sqs, ip networking