Sr. SDET - Cloud, Detection Engineer

Salary: £45,500 - 73,500 per year

Requirements

• 10+ years of experience as an SDET or Backend Developer, combined
• 4-5+ years building testing frameworks and tooling for a Cloud SaaS product
• Strong debugging skills, including the ability to spot design flaws, race conditions, and performance bottlenecks in complex architectures
• A computer science background or equivalent experience, including programming styles, data structures, and algorithms
• Experience building, validating, and/or maintaining large distributed systems at scale
• Solid design and problem-solving skills with a demonstrated passion for engineering excellence, quality, security, and performance
• Strong cross-group collaboration and interpersonal communication skills working across engineering organizations
• Experience with Golang, Python, Kubernetes, Cassandra, Redis, Kafka, Elastic Search, Python, and/or similar technologies; at least one is required
• A sense of humor and a sense of humility
• Prior experience with building, operating, validating, and scaling low-latency internet services is a bonus
• Experience with building and shipping cloud-connected endpoint software is a bonus
• Solid grounding in at least one cloud environment such as AWS, Azure, or GCP is a bonus
• Exposure to or experience with cybersecurity and intelligence is a bonus

Responsibilities

• Build and operate our CI/CD pipeline, using Jenkins, GitHub Actions, or similar tools
• Develop an end-to-end validation pipeline, largely from scratch, leveraging existing frameworks and tooling where possible
• Verify component, system integration, and application-level features and functionality to ensure reliability, accuracy, and performance meet our quality standards
• Participate in code and design reviews and provide technical guidance and feedback to team members
• Review engineering technical design documents and requirements
• Provide guidance and strategy on how and where to build in testability
• Engage in continuous improvement of our end-to-end test and validation processes
• Increase and improve our automated test coverage, and contribute to existing tools, frameworks, and related solutions
• Leverage new open source solutions to build new tools that test things in new ways
• Improve our delivered product quality across our platform and applications
• Collaborate on determining root causes of production outages and add quality improvements to prevent future outages
• Work across processing, data, and customer-facing application layers to support low-latency prevention of malware, high event throughput, and large-scale data querying
• Travel for in-person meetings when required

Technologies

• AI
• AWS
• Azure
• Backend
• CI/CD
• Cloud
• Cassandra
• GCP
• GitHub
• Golang
• Support
• Jenkins
• Kafka
• Kubernetes
• Python
• Redis
• Security
• React

More

We are CrowdStrike, a global leader in cybersecurity with an AI-native platform built to stop breaches. We work on large-scale distributed systems processing almost 3 trillion events per day, and our mission-driven team values flexibility, autonomy, collaboration, responsible AI adoption, experimentation, and innovation. We are building a welcoming, high-trust team for our Cloud Detections Platform, where we offer competitive salaries and equity, opportunities to learn and mentor, and a culture of quality. We are remote-friendly and based in the United Kingdom - London. We also 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, a vibrant office culture with world-class amenities, and Great Place to Work Certified status across the globe.

last updated 35 week of 2026