Sr. Data Scientist II, GenAI; Remote Spain or Romania
Derry, County Derry, BT47, Northern Ireland, UK
Listed on 2026-03-06
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IT/Tech
AI Engineer, Machine Learning/ ML Engineer, Data Scientist, Cybersecurity
As a global leader in cybersecurity, Crowd Strike 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. Our customers span all industries, and they count on Crowd Strike 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 Crowd Striker both the flexibility and autonomy to own their careers. We’re always looking to add talented Crowd Strikers 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.
The Role
Crowd Strike is seeking a Sr Applied Researcher to join our team building greenfield next-generation AI that stops breaches and is powered by large language models (LLMs), deep learning, and other modern AI techniques. You will work closely with other scientists and software engineers to provide technical leadership and strategic direction, while driving innovation in our AI capabilities.
You will shape the technical vision by bringing leading edge AI technology into our product, contribute to production systems, and make high-impact decisions that influence the company's AI strategy. This is a unique opportunity to lead groundbreaking developments in cybersecurity AI that will help keep our customers safe. This opportunity presents a dynamic, growth-oriented startup environment for a driven, research-focused professional.
WhatYou’ll Do
- Lead and architect the research strategy for applying AI to cybersecurity.
- Drive innovation in AI applications, including novel approaches to reasoning, summarisation, and interactivity
- Make strategic decisions about GenAI model architectures, training approaches, and deployment strategies
- Implement cutting edge ML/AI research in the context of cybersecurity
- Build production ready AI systems that operate at Crowd Strike’s massive scale.
- Mentor and guide scientists while fostering a culture of engineering excellence
- Lead cross-functional initiatives and collaborate with senior leadership to align technical strategy with business goals
- Represent Crowd Strike's technical excellence through publications, speaking engagements, and thought leadership
- Establish best practices, technical standards, and evaluation frameworks for the team
- Advanced degree (PhD or Masters) in Computer Science, Data Science, or a related field
- 8+ years of applied machine learning / research experience, with demonstrated leadership in developing production-grade models
- Deep expertise in LLM and deep learning training and deployment at scale
- Have a bias-for-action, ability to make high-judgement decisions, and be comfortable in the face of ambiguity.
- Strong technical leadership experience, including mentoring teams and driving technical strategy
- Advanced knowledge of Python, Deep Learning frameworks, and cloud technologies
- Expert-level understanding of GPU technologies and optimisation techniques
- Outstanding communication skills with ability to influence senior stakeholders
- Track record of solving complex technical challenges at scale
- Strong research portfolio with publications in leading AI journals and conferences
- Experience with cybersecurity applications of machine learning
- Track record of successful research-to-production implementations at scale
- History of contributions to open-source ML projects
- 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 Networks, geographic neighborhood groups, and volunteer opportunities to build connections
- Vibrant office culture with world class amenities
- Great Place to Work Certified™ across the globe
Crowd Strike is proud to be an…
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