Quality Engineering Senior

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.We are looking for a Senior Quality Engineer to champion quality across the Investigate & Respond product area. In this role, you will work autonomously across services, APIs, and user-facing workflows — helping teams catch issues early, build meaningful automated coverage, and deliver reliable customer experiences.
Own and evolve the team's quality strategy across functional, integration, API, and end-to-end testing.
Partner with engineers and product managers — from refinement through release — to identify risk, sharpen acceptance criteria, and build quality into every stage of delivery.
Test complex workflows spanning distributed services, asynchronous processing, APIs, and web applications.
Investigate production issues and customer-reported defects; translate findings into regression coverage and process improvements.
Raise quality risks early and advocate for pragmatic solutions that protect the customer experience.
5+ years of experience in software quality engineering, SDET, or a closely related role.

• Experience with Python and pytest for test automation.
• Experience with modern testing frameworks and automation practices.
• Strong API testing experience.
• The ability to build test strategies for ambiguous, cross-service, or high-risk changes.
• Clear, direct communication and comfort influencing decisions across engineering and product teams.
• Familiarity with CI/CD pipelines, test reporting, and test environment management.

Familiarity with Go testing ecosystems.
Experience writing or reviewing Go code.
Experience in cybersecurity, SaaS, or complex enterprise products.
In addition to base salary, we offer additional compensation including bonus eligibility and a comprehensive benefits package.  A candidate’s specific pay within this range will depend on a variety of factors, including job- related skills, training, location, experience, relevant education, certifications, and other business and organizational needs.

• li-remote
• Sophos operates a remote-first working model, making remote work the primary option for most employees. While we are a remote first organization, applicants must have legal authorization to work in the jurisdiction where the position is posted, without requiring employer sponsorship.

• Employee-led diversity and inclusion networks that build community and provide education and advocacy
• Annual charity and fundraising initiatives and volunteer days for employees to support local communities
• Global employee sustainability initiatives to reduce our environmental footprint
• Monthly wellbeing webinars and training to support employee health and wellbeing

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. Data Protection
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