Engineer II, Language & Runtime - LogScale

CrowdStrike
Denmark - AarhusPosted 8 March 2026

Job Description

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 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: CrowdStrike is seeking an experienced Engineer II for our NG-SIEM Product Group to work on the LogScale platform as part of the Language & Runtime Team. As a member of the LogScale Language & Runtime team, you will focus on the LogScale query language and its execution pipeline, from extending the query language to improving performance of existing functions. This is a highly distributed system that ingests 10+ Petabytes of data per day. Our goals are to scale to 100s of PB of data ingress per day, while maintaining best-in-class ingest, search and detection SLAs, as well as best-in-class cost structure. You will be joining a distributed team of highly collaborative engineers who share a strong passion for the product. In this role, you will get a chance to work on hard engineering problems that do not have well-defined solutions. You will become one of the go-to experts of the LogScale language and its execution model, and will have a broad understanding of the entire LogScale architecture. Teams in LogScale have a great amount of autonomy, and own a part of the LogScale experience, from ideation and development to deployment and feedback. This includes ensuring high quality of the features they deliver, by writing automated tests, and performing manual tests. Moreover, we do not just throw over features to our operations teams, but we constantly observe and monitor new features in production, with LogScale dashboards of course. What You’ll Do: Work in a distributed team of friendly, trustworthy and knowledgeable colleagues. Work on cross-team platform-level initiatives and projects. Participate in scoping, designing and developing of new features and lead delivery of solutions to open-ended problems. Contribute to improving the experience of users of the language. Develop the LogScale backend in Scala and extending our product to keep LogScale scale with increasing ingest load while ensuring high availability. Communicate technical decisions through design documents, technical talks and improving our internal documentation. Provide technical advice on decisions, and research and propose new technologies. Provide expertise on the LogScale query language. Collaborate within the team on delivery of new solutions and support team members through code reviews, pairing, documentation, design reviews and technical guidance. Monitor and followup on features released to customers on-prem and on cloud. Troubleshoot critical production issues on our customer deployments. What You’ll Need: A passion for or personal interest in distributed systems and curiosity of how our running systems are doing. Experience in software development in general and the ability to juggle making pragmatic tradeoffs between short-time delivery needs vs long-term product goals. Experience in contributing to broad technical leadership in products or services. Fluency in both functional and object oriented programming and the ability to pick up new languages on the go. A c ... (truncated, view full listing at source)
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