Senior Software Engineer (Quality Engineering & Testing)

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

Responsibilities

• 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
• 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
• Design and implement robust, maintainable automation across API, integration, and UI layers
• Evolve our testing approach using modern engineering practices – focusing on fast feedback, meaningful and reliable results, and developer productivity
• Improve CI/CD pipelines so quality checks are fast, reliable, and genuinely useful (not just gates)
• Experiment with AI to improve how we test and validate software – from intelligent test generation, smarter failure analysis and self‑healing approaches
• Build or integrate tools that reduce manual effort and increase confidence in releases
• Help establish a strong, pragmatic quality culture that developers actually value
• Ensure quality is a shared responsibility across the team, not owned by a single individual
• Share ideas, mentor others, and contribute to how we continuously improve as a team
• Influence engineering practices beyond your immediate team

What Success Looks Like

• Engineers move faster with more confidence because quality is built into their workflow
• Testing provides fast, meaningful feedback – not noise
• AI-driven approaches reduce manual effort and uncover issues earlier
• The team sees quality as an enabler, not a bottleneck
• You’ll be treated as a software engineer first, not a gatekeeper
• You’ll have room to experiment with new ideas, including AI, and turn them into real impact
• You’ll influence how software is built – not just how it’s tested

Qualifications

• Hands‑on experience applying AI within quality engineering or testing contexts – for example, test generation, failure analysis, test optimisation, or similar
• A track record of building or improving automated testing in real‑world systems
• Strong software engineering experience (JavaScript, TypeScript, or similar)
• A practical mindset: you care about outcomes, not just frameworks or theory
• Experience working in modern development environments with CI/CD and cloud platforms
• Ability to go beyond basic coding assistants and use AI to solve real testing or quality problems in innovative ways
• Exposure to performance or security testing
• Experience working on security or high‑reliability systems
• Contributions to engineering communities, blogs, or open source

Benefits

• We encourage teams to get together in person periodically to help facilitate teamwork
• Remote‑first working model & hybrid options
• Flexible start and end times for many roles
• Leadership development program
• Access to LinkedIn Learning
• Global internal coaching program (Coach Match)
• Periodic Sophos wellness days off for all Sophos to help employees relax and recharge
• Global wellbeing program, which offers a range of wellbeing resources, including Sophos Wellbeing Webinars, Stress Management Toolkits, and Developing Resilience Courses
• Free Employee Assistance Program (EAP) for confidential advice and counseling on a wide range of work and personal issues
• Free annual subscription to the Calm app
• Paid parental leave, caregiver leave & bereavement/compassion leave available
• We host some unforgettable social experiences for our global teams including our music festival SOPH-Fest, go‑karting, Sophmudder, and incredible holiday parties!
• Our annual global fitness challenge, SOPH‑Fit, sees thousands of employees taking part in our virtual global race around the world
• Each quarter, we celebrate our exceptional global team by running the Sophos Values Awards, which recognizes and rewards employees who embody the Sophos values and who we are as a company
• Health care benefits available worldwide

#J-18808-Ljbffr…