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Sophos

Senior Software Engineer 2 (UK)

Sophos • GB
TypeScript Remote
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About Us
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 every day 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  
  
This role sits within the CISO Advantage team, building a product that democratises access to enterprise grade cybersecurity leadership for organisations of all sizes.  
  
As a Senior Software Engineer, you will contribute to designing, developing, testing, and maintaining high-quality software components. You will work closely with senior engineers, support product delivery, and continually build your technical skills while learning best practices in cloud native engineering, security, and scalable system development.  

What You Will Do

  • Lead design and implementation of backend features and services that align with product strategy, security requirements, and quality standards. 

  • Champion AI-assisted development within the team and research the bleeding edge of best practice to keep evolving your knowledge that you share with the team. 

  • Author and review technical designs/RFCs; provide clear trade‑off analyses and decision records. 

  • Develop clean, maintainable, and well‑tested code with appropriate automated tests (unit, integration, contract, performance). 

  • Improve service reliability through SLOs, alerting, logging, and tracing; participate in on‑call with a blameless approach to incidents. 

  • Collaborate closely with Product, Security, SRE, and Support to plan releases, manage risk, and deliver measurable customer value. 

  • Contribute to architecture within team scope (API boundaries, data models, messaging patterns, failure handling). 

  • Drive security‑by‑design practices (threat modelling, secure authZ/authN, secrets management, least privilege). 

  • Mentor engineers through code reviews, pairing, and design walkthroughs; help raise the bar on engineering practices. 

  • Continuously improve CI/CD pipelines, developer experience, and testing effectiveness. 

  • Contribute to sprint ceremonies, provide dependable estimates, and deliver on commitments with transparency. 

What You Will Bring

Essential  

  • Strong experience building backend services and APIs in a modern language (TypeScript/Node.js preferred).  

  • Solid understanding of API design (versioning, idempotency), request/response lifecycles, and integration patterns (REST/JSON, async messaging).  

  • Proficiency with relational databases (PostgreSQL): schema design, indexing, query optimisation, transactions, and safe migrations.  

  • Experience with containers and cloud-native development (Docker, Kubernetes) and CI/CD practices.  

  • Hands-on with automated testing across the pyramid; familiarity with contract testing and test data management.  

  • Practical knowledge of secure coding, authentication/authorisation, and secrets management.  

  • Ability to investigate and resolve production issues methodically; familiarity with observability tooling (metrics, logs, traces).  

  • Clear communication, cross-team collaboration, and mentoring skills.  

  • Bachelor’s degree in computer science/software engineering or equivalent practical experience.  

  

Desirable  

  • Deep TypeScript backend experience (type-driven development, dependency injection, modular architecture).  

  • Familiarity with microservice and event-driven architectures (service boundaries, API gateways, asynchronous workflows).  

  • Experience with messaging (e.g., Kafka, NATS, SNS/SQS) and outbox/transactional messaging patterns.  

  • Infrastructure-as-Code and cloud platforms (e.g., Terraform, AWS/Azure/GCP) and serverless components where appropriate.  

  • Advanced performance and cost optimisation of services and databases.  

  • Experience with security reviews, threat modelling, and compliance considerations.  

  • Experience improving developer workflows and CI/CD pipelines at team scale.  

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