Senior Research Scientist (Architectures Research)

<div class="content-intro"><p><strong>About Nebius:</strong></p> <p>Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.</p> <p>Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.</p> <p>Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.</p></div><p><span class="" data-testid="renderer-code-block-line-3" data-ds--code--row=""><span class=""><span class="token title important">The role</span></span></span></p> <p><span class="" data-testid="renderer-code-block-line-3" data-ds--code--row=""><span class=""> </span></span><span class="" data-testid="renderer-code-block-line-5" data-ds--code--row="">Nebius AI R&D conducts frontier applied research to make open-source AI highly competitive for real-world use cases. Our Architectures Research stream explores how models can attend, remember, reason, and adapt more effectively, enabling longer and richer workflows at lower computational cost.</span></p> <p><span class="" data-testid="renderer-code-block-line-5" data-ds--code--row=""> </span><span class="" data-testid="renderer-code-block-line-7" data-ds--code--row="">We are looking for a Senior Research Scientist to develop new model architectures and methods in areas such as: </span></p> <p><span class="" data-testid="renderer-code-block-line-9" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Efficient, sparse, and adaptive attention </span></span></p> <p><span class="" data-testid="renderer-code-block-line-10" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Long-context models and persistent memory </span></span></p> <p><span class="" data-testid="renderer-code-block-line-11" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Post-training transformation of pretrained models </span></span><span class="" data-testid="renderer-code-block-line-12" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span></span></span></p> <p><span class="" data-testid="renderer-code-block-line-12" data-ds--code--row=""><span class=""> - Selective computation and dynamic inference</span></span></p> <p><span class="" data-testid="renderer-code-block-line-12" data-ds--code--row=""><span class=""> </span></span><span class="" data-testid="renderer-code-block-line-13" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> New architectures for reasoning and continual adaptation </span></span></p> <p> </p> <p><span class="" data-testid="renderer-code-block-line-15" data-ds--code--row=""><span class=""><span class="token title important"> Responsibilities</span> </span></span></p> <p><span class="" data-testid="renderer-code-block-line-17" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Formulate original research questions and translate them into rigorous experimental programs</span></span></p> <p><span class="" data-testid="renderer-code-block-line-17" data-ds--code--row=""><span class=""> </span></span><span class="" data-testid="renderer-code-block-line-18" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Design and evaluate architectural changes at meaningful model scales </span></span></p> <p><span class="" data-testid="renderer-code-block-line-19" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Develop methods that preserve model quality while reducing training or inference cost </span></span></p> <p><span class="" data-testid="renderer-code-block-line-20" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Collaborate with engineering teams to validate ideas in efficient implementations </span></span></p> <p><span class="" data-testid="renderer-code-block-line-21" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Publish research and contribute to open-source models, methods, and tools </span></span></p> <p><span class="" data-testid="renderer-code-block-line-22" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Mentor researchers and help shape the stream's research direction</span></span></p> <p> </p> <p><span class="" data-testid="renderer-code-block-line-24" data-ds--code--row=""><span class=""><span class="token title important"> What we expect</span> </span></span></p> <p><span class="" data-testid="renderer-code-block-line-26" data-ds--code--row=""><span class=""> - A PhD or equivalent research experience in machine learning </span></span></p> <p><span class="" data-testid="renderer-code-block-line-27" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Deep knowledge of transformers, attention, language-model training, and modern model architectures </span></span></p> <p><span class="" data-testid="renderer-code-block-line-28" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> A strong publication record or comparable evidence of original research </span></span></p> <p><span class="" data-testid="renderer-code-block-line-29" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Experience designing rigorous experiments and drawing clear conclusions from ambiguous results</span></span></p> <p><span class="" data-testid="renderer-code-block-line-29" data-ds--code--row=""><span class=""> </span></span><span class="" data-testid="renderer-code-block-line-30" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Strong implementation skills in Python and a modern deep-learning framework </span></span></p> <p><span class="" data-testid="renderer-code-block-line-31" data-ds--code--row=""><span class=""><span class="token list punctuation">-</span> Experience training or evaluating models at scale</span></span></p> <p><span class="" data-testid="renderer-code-block-line-31" data-ds--code--row=""><span class=""> - </span></span><span class="" data-testid="renderer-code-block-line-32" data-ds--code--row=""><span class="">Clear technical communication and the ability to lead research independently </span></span></p> <p><span class="" data-testid="renderer-code-block-line-34" data-ds--code--row="">Experience with long-context modeling, memory systems, sparse or linear attention, model distillation, distributed training, or efficient inference is particularly relevant.</span></p> <p> </p><div class="content-conclusion"><p><strong>Benefits & Perks:</strong></p> <ul> <li>Competitive compensation</li> <li>Career growth and learning opportunities</li> <li>Flexibility and ownership</li> <li>Collaborative and innovative culture</li> <li>Opportunity to work on impactful AI projects</li> <li>International environment and talented teams</li> </ul> <p><strong>What's it like to work at Nebius:</strong></p> <p>Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI </p> <p><strong>Equal Opportunity Statement:</strong></p> <p>Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law.</p> <p>Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire. </p> <p>If you need accommodations during the application process, please let us know.</p></div>

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