About CrowdStrike

CrowdStrike is a global leader in cybersecurity, protecting the people, processes, and technologies that drive modern organizations. Since 2011, our mission has remained unwavering: stop breaches. We've redefined modern security with the world's most advanced AI-native platform, the Falcon platform, processing nearly 3 trillion events per day—a volume that continues to grow. Our customers across all industries rely on CrowdStrike to keep their businesses running, communities safe, and lives moving forward. As a mission-driven company, we foster a remote-first culture that empowers every CrowdStriker with flexibility and autonomy to own their careers. We're passionate about innovation, customer success, and building a collaborative community.

Role Overview

As a Software Engineer III - Cloud in our Threat Detection and Incident Response (TDIR) team in London, United Kingdom, you'll revolutionize security management with the AI-native Falcon Next-Gen SIEM platform. This role involves designing and developing world-class case management and investigation capabilities in Golang, enabling security analysts to detect, investigate, and hunt threats 150x faster at petabyte scale. You'll create intelligent workflows connecting detections, evidence, and responses, leveraging advanced correlation, contextual enrichment, and AI/ML-powered insights. Explore applied AI and agentic AI, including case prioritization, automated suggestions, and AI-assisted workflows. No prior Golang or security experience required—we prioritize your ability to learn, ship high-quality code, and collaborate globally.

Key Technologies

Work with Go-based microservices, RESTful APIs, Kafka for event-driven workflows, Redis for caching, and databases like Cassandra, ElasticSearch, or PostgreSQL. Build resilient, low-latency services at massive scale.

Key Responsibilities

In this full-time role, you'll take end-to-end ownership of technical initiatives, from researching concerns to implementing solutions. Develop Go microservices for cyber attack detection and enrich backend services. Collaborate with designers, product managers, and engineers across teams to design and implement features. Mentor juniors through pair programming, code reviews, and knowledge sharing. Challenge the status quo by improving architecture, performance, and stability. Pursue quality with testing, peer reviews, logging, monitoring, and resilient patterns. Provide production support and monitoring for team-owned services in a high-trust, autonomous environment.

Qualifications & Requirements

We seek empathetic team players with a computer science degree or equivalent experience. You need a solid understanding of distributed systems, scalability, RESTful patterns, multithreading, and software best practices. Proficiency in building scalable services using Go, Python, Java, C++, or C# is essential, along with a proven track record of translating business needs into technical requirements and delivering projects on schedule. Passion for customer success, cybersecurity, and CrowdStrike's mission to stop breaches is key. Comfort with global collaboration across time zones is required.

What We Value

Relentless focus on innovation, fanatical commitment to customers and team, and willingness to learn security topics through our mentorship programs.

Benefits & Perks

Joining CrowdStrike means embracing our remote-first culture, offering flexibility to balance work and life while owning your career. Enjoy comprehensive training in Golang and cybersecurity, even if you're new to these areas. Benefit from a high-trust environment with autonomy, global collaboration, and opportunities to work on cutting-edge AI technologies. Competitive compensation estimated at £110,000 - £180,000 annually reflects the premium nature of this role in London's tech sector. Additional perks include mission-driven impact, innovative projects at petabyte scale, and a supportive community focused on one team, one fight.

Career Growth

At CrowdStrike, career growth is owner-driven. As a Software Engineer III, you'll lead increasingly complex projects, mentor others, and explore AI innovations. Our culture promotes limitless passion and relentless innovation, with paths to senior engineering, architecture, or leadership roles. Distributed teams provide exposure to diverse perspectives, accelerating your expertise in cloud-scale systems and cybersecurity.

Why Join CrowdStrike

Be part of the future of cybersecurity where your work directly stops breaches for organizations worldwide. The Falcon platform's AI-native power sets us apart, handling trillions of events daily. Our remote-first culture ensures autonomy and flexibility, while our commitment to customers and community creates meaningful impact. In London, contribute to a global team revolutionizing threat detection—join a mission that matters.

Role FAQs

Q: Is Golang experience required? No, we provide training; focus on strong coding skills in similar languages.

Q: What's the work setup? Remote-first with global collaboration; high autonomy in a trust-based environment.

Q: How does this role impact cybersecurity? Build features enabling 150x faster threat hunting on the Falcon platform at petabyte scale.

Q: What salary can I expect? Estimated £110,000 - £180,000 GBP yearly, based on UK cybersecurity rates.

Q: Any security background needed? Not required—we mentor on security topics for passionate engineers.