Sr. Software Engineer, Cloud Detection

CrowdStrike; Greater London; On-site; GBP 65,000 - 105,000; Full time

Job summary

CrowdStrike, a global leader in cybersecurity, seeks a highly experienced backend engineer to lead development of scalable systems. You will shape architectures, drive cloud-based detection initiatives, and mentor teams across products.

The role emphasizes collaboration, robust testing, and delivering high-quality software with AI-enabled improvements. Based in London, United Kingdom, this full-time position offers market-leading compensation and a path toward advancing CrowdStrike's AI-native

Qualifications

• Degree in Computer Science or professional experience in data structures, algorithms, and distributed systems.
• Strong understanding of scalability and distributed systems, including sharding, partitioning, and concurrency.
• Ability to thrive in a fast-paced, test-driven, collaborative environment.
• Experience applying AI technologies to enhance decision-making and efficiency.
• Commitment to high-quality, unit-tested, code-reviewed software.

Responsibilities

• Lead backend engineering efforts from rapid prototypes to large-scale applications.
• Develop cloud-based systems to detect targeted attacks and automate threat intelligence at scale.
• Collaborate across teams to define and build solutions.
• Mentor peers and stay current with new technologies and methods.
• Continuously reassess architecture, performance, and reliability.

Skills

Backend engineering

Distributed systems

Team collaboration

CI/CD practices

AI integrations

Cloud familiarity

Education

Bachelor's degree in Computer Science

Tools

Golang

Scala

Kafka

Cassandra

Elasticsearch

AWS

Azure

GCP

GitHub

DevOps

Job description

Salary: £65,000 - 105,000 per year

Requirements:

• We are looking for a highly experienced and motivated backend engineer.
• We require a degree in Computer Science, or professional experience in data structures, algorithms, and distributed systems.
• We need a strong understanding of scalability and distributed systems, including sharding, partitioning, and concurrency.
• We value being a team player.
• We expect a thorough understanding of engineering best practices, from testing paradigms to effective peer code reviews and resilient architecture.
• We need the ability to thrive in a fast-paced, test-driven, collaborative, and iterative programming environment.
• We expect the ability to meet commitments on time and produce high-quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.
• We require proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency, and drive business outcomes.

Responsibilities:

• Lead backend engineering efforts from rapid prototypes to large-scale applications across our products.
• Leverage and build cloud-based systems to detect targeted attacks and automate cyber threat intelligence production at a global scale.
• Brainstorm, define, and build collaboratively with members across multiple teams.
• Learn continuously and champion the newest technologies and techniques with others, raising the technical IQ of the team.
• Mentor and be mentored by other developers on web, backend, and data storage technologies and our system.
• Constantly re-evaluate our product to improve architecture, knowledge models, user experience, performance, and stability.
• Own your work in a high-trust environment.

Technologies:

• AI
• Backend
• Cloud
• Security
• Web
• AWS
• Azure
• Cassandra
• DevOps
• ElasticSearch
• GCP
• GitHub
• Golang
• Support
• Kafka
• Scala

More:

We are CrowdStrike, a global leader in cybersecurity, protecting the people, processes, and technologies that drive modern organizations. Since 2011, our mission has been to stop breaches, and we have redefined modern security with an AI-native platform. Our CrowdStrike Detection Engine team is building a next-generation platform that helps security teams create and manage advanced, unified detections and content across the Falcon ecosystem. We work on large-scale distributed systems processing almost 3 trillion events per day, with traffic growing daily. This is a full-time role based in London, United Kingdom. We offer market-leading compensation and equity awards, comprehensive physical and mental wellness programs, competitive vacation and holidays, paid parental and adoption leave, professional development opportunities, employee networks, volunteer opportunities, and a vibrant office culture with world-class amenities. We are proud to be a Great Place to Work Certified employer and are committed to fostering a culture of belonging, equal opportunity, and inclusion.

last updated 36 week of 2026