About Nebius:
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.
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.
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.
We are seeking a Senior ML Engineer to join a fast-growing team building an agent-native search platform for AI systems, the emerging web access layer for AI. Our focus is agentic search, where AI systems plan, retrieve and refine rather than just return results.
You will develop and deploy machine learning models that power retrieval, ranking, and indexing at scale, helping AI systems access fresh, reliable information in real time.
This is a high-impact role working on a production system used 24x7, operating at the scale of web search.
Your responsibilities:
Train and deploy ML models for retrieval, reranking, and search relevance, such as embedding models and cross-encoders, in production
Develop models supporting crawling, data selection, and content understanding
Build and maintain the data, training and evaluation pipelines behind our models: training-data generation, evaluation sets and retraining
Contribute to and improve our ML platform: training and orchestration workflows (Kubernetes, GPU scheduling, experiment tracking, model lifecycle) and inference optimisation for low-latency serving
Work closely with engineering to integrate and deploy ML models in production services, balancing latency, quality and cost
Apply the latest architectural advances and training procedures for retrieval and LLM-integrated systems
Must-haves:
5+ years of experience in software engineering or applied machine learning
Strong programming skills in Python and at least one of Go or C++
Proven experience deploying ML models in production systems
Solid understanding of machine learning and modern deep learning, including transformers and embeddings
Experience building data or ML pipelines and working with workflow orchestration
Ability to define meaningful model metrics and evaluate models rigorously
Product-oriented mindset with a focus on impact and iteration
Nice-to-haves:
Hands-on experience with retrieval, ranking, or recommendation
Experience with Kubernetes, distributed training or GPU scheduling, or inference optimisation (batching, quantisation, compilation)
Contributions to open-source projects, technical publications, or conference talks
Strong results on public benchmarks or leaderboards (e.g. MTEB, BEIR) or models released on Hugging Face
Benefits & Perks:
- Competitive compensation
- Career growth and learning opportunities
- Flexibility and ownership
- Collaborative and innovative culture
- Opportunity to work on impactful AI projects
- International environment and talented teams
What's it like to work at Nebius:
Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI
Equal Opportunity Statement:
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.
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.
If you need accommodations during the application process, please let us know.
Skills Required
- 5+ years of experience in software engineering or applied machine learning
- Strong programming skills in Python, Go, or C++
- Experience deploying machine learning models in production systems
- Experience with retrieval, ranking, recommendation, or similar machine learning problems
- Strong understanding of machine learning and modern deep learning techniques
- Experience with large-scale data systems and high-throughput environments
- Ability to design evaluation frameworks and define meaningful model metrics
- Product-oriented mindset focused on impact and iteration
- Strong problem-solving skills and ability to work in a distributed team
- Experience with search systems or large-scale information retrieval
- Familiarity with embeddings, transformers, and modern NLP systems
- Experience with LLM-powered or agent-based systems
- Contributions to open-source projects, technical publications, or conference talks
- Participation in competitive machine learning, such as Kaggle, or similar evidence of technical ability
- Authorization to work in the country of application and ability to provide proof of employment eligibility
Nebius Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Nebius and has not been reviewed or approved by Nebius.
-
Fair & Transparent Compensation — Pay is considered competitive or good across many roles, with overall sentiment leaning positive. While experiences vary by team and location, compensation frequently stands out as a strength.
-
Flexible Benefits — Work arrangements are described as remote-friendly with hybrid options and flexibility across time zones. Some roles reference home-office stipends that support distributed work.
-
Healthcare Strength — Company materials and job postings describe comprehensive employer-paid medical, dental, and vision coverage for employees and families. Details may vary by country and entity.
Nebius Insights
What We Do
Cloud platform specifically designed to train AI models
