C++ Engineer

At SenseOn, we're revolutionizing cyber defense with our next-generation XDR platform. Our technology is redefining how organizations detect and respond to threats by unifying endpoint and network visibility with advanced behavioral analytics. We process security telemetry at scale, transforming vast amounts of raw data into actionable intelligence in real-time.

We're not just another security company - we're a fast-growing, fast-moving team tackling some of the most complex challenges in cybersecurity. Our engineering culture values technical excellence, continuous learning, and the thrill of solving hard problems that make a real difference in protecting organizations worldwide.

The role:

As a C++ Engineer, you'll be part of our systems engineering team that tackles both endpoint and backend challenges. You'll work on our Universal Sensor technology, developing our cross-platform security agent, while also building high-performance backend systems that process millions of security events per second. Our C++ codebase spans from low-level system interactions to highly optimized data processing pipelines, offering a unique opportunity to work across the full security stack.

What you'll do:

• Build critical components in modern C++ (17/20) across both endpoint and backend systems
• Develop high-throughput data processing pipelines that handle millions of security events per second
• Dive deep into system internals to implement stealthy and efficient security monitoring capabilities
• Design and optimize concurrent systems that maintain performance under heavy load
• Work with Windows, Mac and Linux endpoints, from kernel-level monitoring to userspace applications
• Collaborate with our threat research team to implement novel detection techniques that catch real-world attacks
• Work in small, focused teams using modern development practices (CI/CD, code review, automated testing)

What you'll learn:

• Advanced systems programming techniques across multiple platforms
• High-performance concurrent programming and data pipeline design
• Real-world security engineering and threat detection
• Performance optimization from endpoint to backend infrastructure
• Modern C++ development practices in large-scale security systems

Requirements

• 2+ years of professional C++ development experience

• Strong understanding of Windows, Mac or Linux systems programming
• Experience with multi-threaded programming
• Basic understanding of networking protocols and security concepts
• Good communication skills, both written and verbal
• Right to work in the UK

Desirable:

• Experience with Windows API programming
• Knowledge of cyber security concepts
• Python scripting experience
• Experience with automated testing frameworks

Benefits

• Remote work with access to London-based office as desired

• Enhanced pension scheme
• Private healthcare with Vitality offering
• Bi-annual career progression review
• Learning and development investment
• Unlimited holiday allowance
• Excellent maternity/paternity leave policy