Senior Software Engineer

Sophos; United Kingdom; Remote; GBP 50,000 - 90,000; Full time

Job description

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Sophos is a global leader and innovator of advanced security solutions for defeating cyberattacks. The company acquired Secureworks in February 2025, bringing together two pioneers that have redefined the cybersecurity industry with their innovative, native AI-optimized services, technologies and products. Sophos is now the largest pure-play Managed Detection and Response (MDR) provider, supporting more than 28,000 organizations. In addition to MDR and other services, Sophos’ complete portfolio includes industry-leading endpoint, network, email, and cloud security that interoperate and adapt to defend through the Sophos Central platform. Secureworks provides the innovative, market-leading Taegis XDR/MDR, identity threat detection and response (ITDR), next-gen SIEM capabilities, managed risk, and a comprehensive set of advisory services. Sophos sells all these solutions through reseller partners, Managed Service Providers (MSPs) and Managed Security Service Providers (MSSPs) worldwide, defending more than 600,000 organizations worldwide from phishing, ransomware, data theft, other everyday and state-sponsored cybercrimes. The solutions are powered by historical and real-time threat intelligence from Sophos X-Ops and the newly added Counter Threat Unit (CTU). Sophos is headquartered in Oxford, U.K. More information is available at www.sophos.com.

Role Summary

We are seeking a Senior Software Engineer to join our Security Operations Features team, contributing to the development of Managed Services. In this role, you will work as part of an experienced engineering team, driving the design and implementation of complex features while collaborating with key stakeholders across the organization. This position offers an excellent opportunity to be part of an inclusive and knowledgeable team dedicated to fostering innovation and professional growth.

What You Will Do

• Design, build, support and refine solutions for our Security Operations team and end customers focusing on Managed Services.
• Actively contribute to release planning and drive for high-value and high-quality solutions which meet business needs.
• Write product code along with test automation to deliver against project timescales, quality and requirements.
• Contribute to daily stand-ups, collaborative estimation and retrospective meetings.
• Participate in architecture and security reviews of new developments to ensure that released products comply with Sophos’ security requirements and industry best practice.
• Research, design and prototype new functionality that forms part of a larger solution.
• Learn how to scale solutions and integrate with products produced by wider teams.

What You Will Bring

• Extensive development and test experience, with expertise in JavaScript/TypeScript.
• Strong architecture and design skills, ensuring scalability, performance, and maintainability.
• Proven ability to lead technical discussions, mentor junior engineers, and drive best practices.
• Excellent problem-solving skills, thinking strategically and proposing innovative solutions.
• Strong independent research, prototyping, and system design capabilities.
• Excellent communication skills, both verbal and written, with the ability to articulate technical concepts to diverse audiences.

Desirable

• Experience with agile development methodologies, preferably Scrum or Kanban.
• Proficiency in modern web UI frameworks, such as React or Angular.
• Strong understanding and practical experience with SQL and NoSQL databases.
• Expertise in automated testing, including unit, integration, and end-to-end testing.
• Hands-on experience with REST APIs and GraphQL for efficient data handling and service communication.

Ready to Join Us?

At Sophos, we believe in the power of diverse perspectives to fuel innovation. Research shows that candidates sometimes hesitate to apply if they don't check every box in a job description. We challenge that notion. Your unique experiences and skills might be exactly what we need to enhance our team. Don't let a checklist hold you back – we encourage you to apply.

What's Great About Sophos?

• Sophos operates a remote-first working model, making remote work the primary option for most employees. However, some roles may necessitate a hybrid approach. Please refer to the location details in our job postings for further information.
• Our people – we innovate and create, all of which are accompanied by a great sense of fun and team spirit.
• 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.
• Global fitness and trivia competitions to keep our bodies and minds sharp.
• Global wellbeing days for employees to relax and recharge.
• Monthly wellbeing webinars and training to support employee health and wellbeing.

Our Commitment To You

We’re proud of the diverse and inclusive environment we have at Sophos, and we’re committed to ensuring equality of opportunity. 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. We want to give you every opportunity to show us your best self, so if there are any adjustments we could make to the recruitment and selection process to support you, please let us know.

Data Protection

If you choose to explore an opportunity, and subsequently share your CV or other personal details with Sophos, these details will be held by Sophos for 12 months in accordance with our Privacy Policy and used by our recruitment team to contact you regarding this or other relevant opportunities at Sophos. If you would like Sophos to delete or update your details at any time, please follow the steps set out in the Privacy Policy describing your individual rights. For more information on Sophos’ data protection practices, please consult our Privacy Policy Cybersecurity as a Service Delivered | Sophos.

Seniority level

• Not Applicable

Employment type

• Full-time

Job function

• Engineering and Information Technology
• Industries: Software Development