Sr. Software Engineer, Cloud (Hybrid, London)

CrowdStrike is a global leader in cybersecurity. Since 2011, our mission has been to stop breaches and redefine modern security with the world's most advanced AI-native platform. We work on large-scale distributed systems, processing trillions of events per day, with customers across industries who rely on us to keep their businesses running. CrowdStrike offers flexibility and autonomy while encouraging responsible AI adoption, experimentation, and innovation. We are seeking a Senior Software Engineer, Cloud to join our Threat Detection and Incident Response (TDIR) team and help revolutionize security management with our AI-native Falcon Next-Gen SIEM platform, enabling customers to detect, investigate, and hunt threats at scale.

You'll design, architect, and develop world-class case management and investigation capabilities in Go, building workflows that connect detections, evidence, and response actions into cohesive cases. You'll leverage advanced correlation, contextual enrichment, and AI/ML-powered insights to help security teams prioritize threats and automate investigations, enabling faster response to emerging threats.

While Go experience is preferred, strong backend engineers from other languages who can demonstrate rapid adaptability and a track record of delivering at scale are welcome to apply.

• Own the engineering bar: drive architectural improvements, set the standard for code quality, and ensure systems are performant, reliable, and built to last for current scale and the future.
• Lead system design and architecture decisions, including design reviews and RFC processes.
• Develop Go-based microservices supporting threat detection, case management, and incident response workflows, alongside RESTful APIs powering customer-facing capabilities.
• Take end-to-end ownership of technical initiatives, individually or as part of a team, across projects of increasing scope and complexity.
• Collaborate with designers, product managers, and engineers across product groups to understand, design, and implement solutions.
• Mentor junior and mid-level engineers through pair programming, code reviews, and knowledge sharing.
• Contribute to AI-powered capabilities including LLM integration, agentic workflows, and intelligent analyst tooling.
• Participate in the on-call rotation and drive improvements that reduce toil and increase system reliability.
• Operate with a high degree of autonomy and be trusted to make decisions and drive outcomes.

• A collaborative team player with a mindset of One team. One fight.
• 8+ years of professional software engineering experience, with 5+ years building and operating distributed systems or cloud-native services at scale in production.
• Solid understanding of distributed systems, scalability, RESTful patterns, and multithreading concepts.
• Proficiency building and scaling resilient, low-latency services in production using Go, Python, Java, C++, or C#.
• Hands-on experience with Docker, Kubernetes, and cloud platforms, preferably AWS or GCP.
• Strong communicator and collaborator across functions and levels, with a bias for ownership and a customer-first mindset.
• Proven ability to translate complex and ambiguous business requirements into technical solutions and deliver projects on schedule.
• Proven experience utilizing AI technologies to enhance decision-making, streamline workflows, and drive business outcomes.

Bonus points: Currently developing Go-based microservices for scalable, high-throughput architectures; experience in cybersecurity, SIEM, SOAR, or adjacent security domains; hands-on experience with LLM integration, prompt engineering, RAG pipelines, or agentic AI frameworks.

• Market-leading compensation and equity awards
• Comprehensive physical and mental wellness programs
• Competitive vacation and holidays
• Paid parental and adoption leaves
• Professional development opportunities for all employees
• Employee networks, geographic groups, and volunteer opportunities
• Vibrant office culture with world-class amenities

Equal Opportunity CrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program. The Company does not discriminate in employment opportunities or practices on the basis of race, color, creed, ethnicity, religion, sex, pregnancy or pregnancy-related medical conditions, sexual orientation, gender identity, marital or family status, veteran status, age, national origin, physical or mental disability, genetic information, or any other characteristic protected by law. We base all employment decisions on valid job requirements and relevant qualifications. If you need assistance accessing or submitting an application, please contact for further assistance.