Senior Data Scientist - AI Research

At Dream, we redefine cyber defense vision by combining AI and human expertise to create products that protect nations and critical infrastructure. This is more than a job; It’s a Dream job. Dream is where we tackle real-world challenges, redefine AI and security, and make the digital world safer. Let’s build something extraordinary together.

Dream's AI cybersecurity platform applies a new, out-of-the-ordinary, multi-layered approach, covering endless and evolving security challenges across the entire infrastructure of the most critical and sensitive networks. Central to our Dream's proprietary Cyber Language Models are innovative technologies that provide contextual intelligence for the future of cybersecurity.  

At Dream, our talented team, driven by passion, expertise, and innovative minds, inspires us daily.  We are not just dreamers, we are dream-makers. 

We are seeking a Senior Data Scientist / Applied Researcher to join Dream’s core product organization, where you will build and deploy next-generation AI models powering real-world cybersecurity use cases across our diverse product portfolio (Posture, Detection, and CTI). The role centers on building and scaling intelligent systems powered by LLMs, advanced ML techniques, and agent-based architectures. 

You will join a team within Dream’s Cyber R&D organization, leading the company’s core product portfolio-while driving AI innovation and setting best practices across the domain. The group focuses on developing next-generation technologies, including training and optimizing LLMs and building advanced multi-agent workflows, while mentoring data scientists across R&D. 

As a key technical leader, you will guide the evolution of our AI capabilities-converting cutting-edge ideas into impactful, production-ready systems and shaping our long-term direction. 

We are looking for visionary data scientists and applied researchers eager to take on ambitious challenges and push the boundaries of AI in cybersecurity. 

• Design and build advanced AI models and systems that power Dream’s core products and address real-world cybersecurity challenges.  
• Own initiatives end-to-end from identifying customer-driven problems and shaping solutions to experimentation, prototyping, and production deployment.  
• Drive forward new ideas and research directions, turning emerging concepts into practical, scalable solutions.  
• Influence the organization’s roadmap and contribute to long-term technical strategy across Dream’s AI and product landscape. 

• 5+ years of experience as a Data Scientist with proven production-level impact.  
• Master’s degree in Computer Science, Mathematics, Statistics, or Engineering (PhD is a plus, but not required).  
• Experience in applied research, including work with Transformers, open-source LLMs, or other advanced deep learning architectures.  
• Strong programming skills in Python, with hands-on experience in modern ML frameworks and tooling.  
• Excellent problem-solving skills and a strong experimental mindset.  
• Strong communication skills and the ability to collaborate effectively across teams. 
• High curiosity and a passion for learning new technologies, methods, and domains. 

If you think this role doesn't fully match your skills but are eager to grow and break glass ceilings, we’d love to hear from you!