Senior Research Scientist, Nemotron Post-training

Join NVIDIA and help build the Nemotron models that will define the foundation of open-source generative AI. We are looking for a research scientist / engineer who is passionate about open-source and excited to create our next-generation post‑training pipelines. You will work at the intersection of research and engineering to invent, implement, and scale the core post‑training technologies behind our Nemotron models. What You’ll Be Doing You will be engaged as core contributors to Nemotron models post‑training, working at the intersection of the areas: 1) Synthetic data and algorithmic research for agentic RL 2) Data and training infrastructure implementation 3) Collaborating in vendor data acquisition and experimentation 4) Large‑scale research & production model post‑training Advance open‑source foundation models by developing training data, benchmarks, LLMs and software (including NeMo‑RL, Nemo‑Gym and yet to be announced software) Solve large‑scale, end‑to‑end foundation model post‑training challenges, spanning the full model lifecycle from initial orchestration, data pre‑processing, running of model training and tuning, to model deployment. Publish and present your results at academic and industry conferences. What We Need To See Master or PhD degrees in computer science, machine learning or other quantitative domains (or equivalent experience). 5+ years of working or research experience in model mid‑training / post‑training, reinforcement learning and agentic systems. Hands‑on experience in data curation and model training for Agentic and Reasoning capabilities. In‑depth experience in using or developing inference and deployment environments such as vLLM, SGLang or TRT‑LLM. Ways To Stand Out From The Crowd Industrial experience in reinforcement learning for leading foundation models. Experience in optimizing model quality from real‑world traffic feedbacks. Your base salary will be determined based on your location, experience, and the pay of employees in similar positions. The base salary range is 192,000 USD – 304,750 USD for Level4, and 224,000 USD – 356,500 USD for Level5. You will also be eligible for equity and benefits. Applications for this job will be accepted at least until June20,2026. NVIDIA uses AI tools in its recruiting processes. NVIDIA is committed to fostering an inclusive work environment and is proud to be an equal opportunity employer. As we highly value diversity in our current and future employees, we do not discriminate (including in our hiring and promotion practices) on the basis of race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. #J-18808-Ljbffr