Remote Senior Software Engineer Quality Engineering & Testing

Sophos Plc; Thirsk; Remote; GBP 85,000 - 120,000; Full time

Job summary

Sophos is seeking a Remote Senior Software Engineer in Quality Engineering & Testing to influence quality from day one, spanning development, automation and modern testing practices. This role blends hands-on testing with automation and collaboration across teams.

You will design systems, build tooling, and perform manual testing where it adds value, while helping the team deliver reliable software at scale. We’re exploring AI-enabled quality improvements in a pragmatic way.

Responsibilities

• Engineer quality into the product from day one across development, automation, and testing.
• Collaborate with engineers, product managers and designers to bake quality in from the start.
• Contribute to code where it improves reliability, testability, and observability.
• Help shape design decisions to reduce defects before they happen.
• Build scalable test infrastructure.

Job description

Remote Senior Software Engineer Quality Engineering & Testing

Date: 2026-10-03

Location: North Yorkshire, North Yorkshire, GB, YO7 1PL

Application Deadline: 2027-01-01T19:03:07.037

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.

About the Role

We're looking for a Senior Software Engineer who cares deeply about building high-quality products - not just testing them after the fact. In this role, you'll help shape how quality is engineered into our products from day one, working across software development, automation, and modern testing practices. This role includes a blend of hands-on testing and automation. You'll design systems, build tooling, and dive into manual testing where it adds the most value - all while helping the team deliver reliable software at scale. We're exploring how AI can meaningfully improve quality engineering beyond code assistants, and you'll have the opportunity to shape that journey in a practical, grounded way. This is an area we're actively evolving, not a fully mature capability today. If you enjoy solving real engineering problems, improving how teams build software, and taking a pragmatic approach to quality, this role will give you the space to do it.

What You Will Do

• Engineering Quality into the Product
• Partner with engineers, product managers, and designers to build quality into features from the start - not bolt it on at the end.
• Contribute directly to product code where it improves reliability, testability, and observability.
• Help shape system design decisions to reduce defects before they happen.
• Building Scalable Test

#s1-Gen

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.

About the Role

We're looking for a Senior Software Engineer who cares deeply about building high-quality products - not just testing them after the fact. In this role, you'll help shape how quality is engineered into our products from day one, working across software development, automation, and modern testing practices. This role includes a blend of hands-on testing and automation. You'll design systems, build tooling, and dive into manual testing where it adds the most value - all while helping the team deliver reliable software at scale. We're exploring how AI can meaningfully improve quality engineering beyond code assistants, and you'll have the opportunity to shape that journey in a practical, grounded way. This is an area we're actively evolving, not a fully mature capability today. If you enjoy solving real engineering problems, improving how teams build software, and taking a pragmatic approach to quality, this role will give you the space to do it.

What You Will Do

Engineering Quality into the Product Partner with engineers, product managers, and designers to build quality into features from the start - not bolt it on at the end. Contribute directly to product code where it improves reliability, testability, and observability. Help shape system design decisions to reduce defects before they happen. Building Scalable Test