Romania - Remote
Live, first seen by us 28 days agoListed location: Romania - RemoteRead the full posting
Employment type in the employer’s posting: Full timeFrom the employer’s posting
Lead and architect research for new GenAI agents and LLMs
Drive innovation in LLM applications like reasoning and summarization
Make strategic decisions on model architectures, training, and deployment
Mentor and guide data scientists toward engineering excellence
Establish best practices, standards, and evaluation frameworks for the team
Lead and architect the research for new GenAI agents/LLMs
Drive innovation in LLM applications, including novel approaches to reasoning, summarization, and interactivity
Make strategic decisions about GenAI model architectures, training approaches, and deployment strategies
Mentor and guide Data Scientists while fostering a culture of engineering excellence
Establish best practices, technical standards, and evaluation frameworks for the team
8+ years of applied machine learning / research experience, with demonstrated leadership in developing production-grade models
Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes.
Experience with cybersecurity applications of machine learning
Deep expertise in LLM training / deployment at scale
Bonus Points: - Advanced degree (PhD or Masters) in Computer Science, Data Science, or a related field - Patents or significant intellectual property contributions in AI
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Day 28
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At CrowdStrike, jobs usually come down by about day 42.
From 10,753 similar postings that came down, and 72 of CrowdStrike’s. Coming down is not always a hire.
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- 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 optimization techniques
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New Data Scientist postings at the employers we follow are down 3% over the last 5 weeks compared with the 5 before.
Each bar is one week of new postings. The darkest bars are the last 5 weeks.
Counted from the hiring pages we’ve followed for at least five weeks, so employers we add don’t look like growth. Updated weekly.
We file this job under Data Scientist, by the work the posting describes.
Data scientists use statistics and models to answer harder questions, such as whether a change worked, what demand will look like next quarter, or which customers are likely to leave.
Postings usually ask for Python or R, SQL, statistics, experiment design and common machine learning methods.
Unlike an ML engineer, a data scientist's main output is often an analysis or a first model, not software running inside a product.
Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-2051.
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 proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute to a culture of responsible AI adoption, experimentation, and innovation. We use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution, build expertise, uncover insights, and solve complex problems. 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 a Sr. Data Scientist to join our team building the next generation of AI assistants powered by large language models (LLMs). You will work closely with other scientists, software engineers and product managers to provide technical leadership and execution, while driving innovation in our AI capabilities.
You will shape the technical vision, mentor team members, and make high-impact solutions and inventions. This is a unique opportunity to lead groundbreaking developments in AI that will revolutionize how we access information and interact with technology in the cybersecurity space. This opportunity presents a dynamic, growth-oriented startup environment for a driven, research-focused professional.
What You’ll Do:
Lead and architect the research for new GenAI agents/LLMs, setting the technical direction for the team and leading from the front on execution, derivation, and implementation
Drive innovation in LLM applications, including novel approaches to reasoning, summarization, and interactivity
Make strategic decisions about GenAI model architectures, training approaches, and deployment strategies
Mentor and guide Data 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 CrowdStrike's technical excellence through publications, speaking engagements, and thought leadership
Establish best practices, technical standards, and evaluation frameworks for the team
What You’ll Need:
8+ years of applied machine learning / research experience, with demonstrated leadership in developing production-grade models
Deep expertise in LLM training / deployment at scale
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 optimization techniques
Outstanding communication skills with ability to influence senior stakeholders
Track record of solving complex technical challenges at scale
Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes.
Bonus Points:
Advanced degree (PhD or Masters) in Computer Science, Data Science, or a related field
Patents or significant intellectual property contributions in AI
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
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Benefits of Working at CrowdStrike:
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 recruiting@crowdstrike.com for further assistance.
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Romania - Remote
#LI-JP2 #LI-Remote Benefits of Working at CrowdStrike:
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