Senior Software Engineer

About Us Sophos is a cybersecurity leader defending 600,000 organizations globally with an AI-driven platform and expert-led services. Sophos meets organizations wherever they are in their security maturity and grows with them to defeat cyberattacks. Its solutions combine machine learning, automation, and real-time threat intelligence with frontline human expertise from Sophos X-Ops to deliver advanced, 24/7 threat monitoring, detection, and response.   Sophos offers industry-leading managed detection and response (MDR) alongside a comprehensive portfolio of cybersecurity technologies — including endpoint, network, email, and cloud security, extended detection and response (XDR), identity threat detection and response (ITDR), and next-gen SIEM. Together with expert advisory services, these capabilities help organizations proactively reduce risk and respond faster, with the visibility and scalability needed to stay ahead of evolving threats.   Sophos goes to market with a global partner ecosystem, including Managed Service Providers (MSPs), Managed Security Service Providers (MSSPs), resellers and distributors, marketplace integrations, and cyber risk partners, giving organizations the flexibility to choose trusted relationships when securing their business. Sophos is headquartered in Oxford, U.K. More information is available at www.sophos.com. Role Summary This is an opportunity to build and improve cloud-based email security services at scale while working with experienced engineers, architects, and product leaders in a mission-driven cybersecurity organization. At Sophos, our mission is to protect customers from cybersecurity threats. The Messaging Security Group develops Sophos Central Email features and capabilities, and this Senior Software Engineer will work within that engineering team. In this role, you will influence system design and engineering best practices across MSG, collaborate with senior development leaders, architects, and product management, and help execute Sophos’ vision for email and messaging security. As part of an agile team, you may lead projects under the guidance of an architect or senior technical lead. For UI projects, you will mentor team members and collaborate closely with the global Sophos UI team to ensure alignment with company UI principles.