Senior Software Engineer – Quality Engineering & Testing

Sophos is a global leader in advanced security solutions, supporting over 28,000 organizations worldwide with a comprehensive portfolio including MDR, endpoint, network, email, and cloud security. The company emphasizes innovation, AI-optimized services, and a remote-first work culture.

Location: Remote (UK)

Responsibilities

• Partner with engineers, product managers, and designers to build quality into features from the start.
• Contribute directly to product code to improve reliability, testability, and observability.
• Help shape system design decisions to reduce defects.
• Design and implement robust, maintainable automation across API, integration, and UI layers.
• Evolve testing approaches using modern engineering practices focusing on fast feedback and developer productivity.
• Improve CI/CD pipelines for fast, reliable quality checks.
• Experiment with AI to improve testing and validation, including intelligent test generation and failure analysis.
• Build or integrate tools to reduce manual effort and increase confidence in releases.
• Help establish a pragmatic quality culture that developers value.
• Ensure quality is a shared responsibility across the team.
• Share ideas, mentor others, and contribute to continuous improvement.
• Influence engineering practices beyond immediate team.

Requirements

• Strong software engineering experience (JavaScript, TypeScript, or similar).
• Experience building or improving automated testing in real-world systems.
• Experience with modern development environments, CI/CD, and cloud platforms.
• Practical mindset focused on outcomes.
• Hands-on experience applying AI within quality engineering or testing contexts.
• Ability to use AI to solve real testing or quality problems innovatively.

Benefits

• Remote-first working model.
• Innovative and fun team environment.
• Employee-led diversity and inclusion networks.
• Annual charity, fundraising, and volunteer initiatives.
• Global sustainability initiatives.
• Fitness and trivia competitions.
• Wellbeing days, webinars, and training.