Senior Software Engineer Quality Engineering Testing

Salary: £62,000 - 75,000 per year

Requirements:

• Strong software engineering experience in JavaScript, TypeScript, or a similar language.
• A track record of building or improving automated testing in real-world systems.
• Experience working in modern development environments with CI/CD and cloud platforms.
• A practical mindset focused on outcomes, not just frameworks or theory.
• Hands-on experience applying AI within quality engineering or testing contexts, such as test generation, failure analysis, test optimisation, or similar.
• Ability to go beyond basic coding assistants and use AI to solve real testing or quality problems in innovative ways.
• Experience working on security or high-reliability systems is a plus.
• Exposure to performance or security testing is a plus.
• Contributions to engineering communities, blogs, or open source are a plus.

Responsibilities:

• Partner with engineers, product managers, and designers to build quality into features from the start.
• 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.
• Experiment with AI to improve how we test and validate software, including 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 value.
• Ensure quality is a shared responsibility across the team, not owned by a single individual.
• Share ideas, mentor others, and contribute to continuous team improvement.
• Influence engineering practices beyond your immediate team.

Technologies:

• AI
• API
• CI/CD
• Cloud
• JavaScript
• Network
• Security
• TypeScript
• UX UI Design
• Support
• Machine Learning

More:

We are Sophos, a cybersecurity leader defending 600,000 organizations globally with an AI-driven platform and expert-led services. We provide managed detection and response alongside a broad portfolio of cybersecurity technologies, including endpoint, network, email, cloud, XDR, ITDR, and next-gen SIEM, supported by expert advisory services and a global partner ecosystem. We are headquartered in Oxford, U.K., and operate a remote-first working model for most employees, with some roles requiring a hybrid approach. We offer a collaborative, fun, and inclusive culture with employee-led diversity networks, charity and volunteer initiatives, sustainability programs, fitness and trivia competitions, wellbeing days, and monthly wellbeing webinars. We are committed to equality of opportunity and encourage applicants from diverse backgrounds to apply.

last updated 40 week of 2026