National AI Awards 2025Discover AI's trailblazers! Join us to celebrate innovation and nominate industry leaders.

Nominate & Attend

Software Engineer III, SDET - Detections Platform (Remote, GBR)

CrowdStrike
5 months ago
Applications closed

Related Jobs

View all jobs

Software Engineer

Software Engineer

Software Engineer

Software Engineer C

Software Engineer, Cybersecurity Analytics & Enforcement

C++ Software Engineer - 2325-1

As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn't changed - we're here to stop breaches, and we've redefined modern security with the world's most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day. We have 3.44 PB of RAM deployed across our fleet of C* servers - and this traffic is growing daily. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We're also a mission-driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. We're always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you.

About the Role:

We're building a welcoming & flexible team that prizes collaboration over competition, one which provides opportunities to learn new skills, mentor junior and senior developers and contribute to the direction of both the team & the products for which we're responsible. This is a high trust environment where we allow team members to manage their own time, take holidays as they need it and reward them with competitive salaries and equity.

The Falcon endpoint agent is able to react in near-real-time to changes in the threat landscape, and underpinning this is the ability of the endpoint agent to quickly query our cloud for new information. This system operates within tight latency and response time constraints at a scale matched by few other environments, and the scale is only growing.

CrowdStrike is seeking a Software Developer in Test for our Detections Platform team. This critical role in the organization will be responsible for validating that the cloud-side software that provides information to the endpoint agent, as well as the endpoint-side code that issues queries and incorporates the responses, is behaving as expected. You'll be building out an end-to-end validation pipeline leveraging existing frameworks and tooling where possible, but able to color outside the lines when necessary. You'll work in an environment where quality is the company culture. Come use cutting edge tools and technologies as well as tried and true ones.

Work on: verifying key features and functionality that spans our processing, data and customer facing application layers to ensure it's able to support low-latency prevention of malware, manage thousands of events per second, query across terabytes of data and deliver accurate information to the endpoint - which also processes the data properly.

What You'll Do:

  • Both build stuff and break stuff!
  • Verify component, system integration and application level features and functionality to ensure our reliability, accuracy and performance reaches our standards for quality.
  • 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 about 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 entire platform and applications.
  • Collaborate on determining root causes of production outages and adding quality improvements to prevent outages in the future.
  • Crowdstrike is a remote-friendly company, but we do get together from time to time. Some travel will be required for in-person meetings.



What You'll Need:

  • 5+ years of experience as an SDET or Backend Developer (combined)
  • 2-3+ years building testing frameworks and tooling for a Cloud SaaS product
  • Strong debugging skills: ability to spot design flaws, race conditions and performance bottlenecks in complex architectures.
  • A computer science background or equivalent experience (programming styles, data structures, algorithms, etc.)
  • Experience in 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, coupled with a desire to ship elegant solutions to complex problems.
  • 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. You don't need all of these, but you need at least one.
  • Both a sense of humor and a sense of humility.



Bonus Points:

  • Prior experience with building, operating, validating, and scaling low-latency internet services.
  • Experience with building and shipping cloud-connected endpoint software.
  • Solid grounding in the technology of at least one cloud environment (AWS, Azure, GCP).
  • Exposure to/experience with cybersecurity and intelligence.



#LI-SC1
#LI-Remote

Benefits of Working at CrowdStrike:

  • Remote-friendly and flexible work culture
  • Market leader in compensation and equity awards
  • Comprehensive physical and mental wellness programs
  • Competitive vacation and holidays for recharge
  • Paid parental and adoption leaves
  • Professional development opportunities for all employees regardless of level or role
  • Employee Resource Groups, geographic neighbourhood groups and volunteer opportunities to build connections
  • Vibrant office culture with world class amenities
  • Great Place to Work Certified™ across the globe



CrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued for who they are and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program.

CrowdStrike is committed to providing equal employment opportunity for all employees and applicants for employment. The Company does not discriminate in employment opportunities or practices on the basis of race, color, creed, ethnicity, religion, sex (including pregnancy or pregnancy-related medical conditions), sexual orientation, gender identity, marital or family status, veteran status, age, national origin, ancestry, physical disability (including HIV and AIDS), mental disability, medical condition, genetic information, membership or activity in a local human rights commission, status with regard to public assistance, or any other characteristic protected by law. We base all employment decisions--including recruitment, selection, training, compensation, benefits, discipline, promotions, transfers, lay-offs, return from lay-off, terminations and social/recreational programs--on valid job requirements.

If you need assistance accessing or reviewing the information on this website or need help submitting an application for employment or requesting an accommodation, please contact us at for further assistance.

National AI Awards 2025

Subscribe to Future Tech Insights for the latest jobs & insights, direct to your inbox.

By subscribing, you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

How to Find Hidden Cyber Security Jobs in the UK Using Professional Bodies like BCS, CIISec & More

The demand for skilled cyber security professionals in the UK has never been higher. With threats increasing in sophistication and frequency, organisations are urgently hiring ethical hackers, threat analysts, GRC specialists, and security architects. But many of the most valuable roles—particularly in government, defence, and critical infrastructure—are never publicly advertised. Instead, these jobs are shared behind the scenes through trusted networks, private communities, and professional bodies. In this article, we explore how to uncover hidden cyber security jobs in the UK using organisations like the BCS (The Chartered Institute for IT), CIISec (The Chartered Institute of Information Security), ISACA, and ISC² UK Chapter. We’ll show you how to use membership directories, special interest groups, CPD events and informal networks to gain early access to roles most people never see.

How to Get a Better Cyber Security Job After a Lay-Off or Redundancy

Redundancy is never easy—especially in a fast-moving field like cyber security, where your skills and experience are constantly evolving. But if you’ve recently been made redundant from a cyber security role, know this: the UK cyber workforce remains in high demand, and your expertise is more valuable than ever. Whether you’re a SOC analyst, penetration tester, incident responder, security architect or GRC specialist, there are still thousands of opportunities across sectors including finance, defence, government, retail, and critical infrastructure. This guide will help you turn redundancy into a career relaunch, with a clear action plan tailored to the UK cyber security job market.

Cyber Security Jobs Salary Calculator 2025: Check Your Market Value in Seconds

Why yesterday’s pay survey no longer protects you. “Could I earn more at a managed SOC?” “Is that fintech’s offer really competitive?” Every UK cyber‑security professional asks some version of those questions—usually after another colleague lands a pay rise, a recruiter sends a tempting JD, or a fresh breach makes headline news. Yet salary guides published even last year feel as out‑of‑date as a forgotten antivirus signature. Since 2024, ransomware gangs switched to double‑extortion, deepfake phishing exploded, & the EU’s NIS2/DORA regulations bled into UK contracts despite Brexit. With each shift, salary bands move. To cut through stale averages, CybersecurityJobs.tech distilled a three‑factor formula that lets you estimate a realistic 2025 salary in under a minute. Feed in your role, your UK region, & your seniority level. The output arms you with data‑driven leverage for your next appraisal, job application, or freelance rate card. This article explains the formula, reveals the forces pushing cyber pay ever higher, & outlines five practical moves to boost your market value within ninety days.