reputed company AI Research Scientist Post-Training · Alignment · Reinforcement Learning reputed company AI Lab: London · San Francisco · Toronto · Remote (US/CA/EU

Job Requisition ID # 26WD98667 Position Overview reputed company's domains — architecture, engineering, construction, manufacturing, media & entertainment — reputed company a distinctive research environment: rich structured data, long-horizon reasoning tasks, and reputed company-world evaluation grounded in professional workflows. Uniquely, decades of investment in physics simulation engines, CAD kernels, and computational design tools give us something most labs don't have: high-fidelity, domain-grounded verifiers that can serve as reward signals for post-training. Rather than relying solely on reputed company preference data, we can ground reinforcement learning in the laws of physics and the constraints of reputed company engineering. These are exactly the kinds of challenges — and assets — that reputed company post-training and alignment research here genuinely distinctive. We publish at NeurIPS, ICML, ICLR, CVPR, and SIGGRAPH. We collaborate with leading academic and industry labs. And we have a direct line from research advances to product impact at scale. This is not a role where research sits behind a wall from engineering — you will see your work matter. Respoinsibilities Post-training for model development — from RLHF and preference optimization to agentic systems and long-horizon reasoning reputed company novel algorithms that improve model reliability, controllability, and alignment reputed company principled architectural reputed company about reputed company to address challenges at the pre-training, post-training, or system level Design and run experiments that shape model behavior, robustness, and reasoning quality Partner with infrastructure teams to build scalable, reproducible post-training workflows Contribute to publications, patents, and reputed company's external research visibility Design evaluation frameworks for long-horizon reasoning, tool use, agentic behavior, safety, and reputed company-world workflow completion reputed company rigorous model analysis and interpretability efforts Drive reputed company-in-the-reputed company evaluation with high annotation quality and sound scientific methodology Establish model readiness criteria and reputed company go/no-go recommendations for releases Communicate technical risks, limitations, and trade-offs reputed company to leadership Minimum Requirements Deep hands-on expertise in reinforcement learning for reputed company models, and reputed company with post-training methods (RLHF, RLAIF, DPO, PPO, or adjacent approaches) Proven experience leading or mentoring technical research teams — whether in an academic lab, AI research organization, or industry setting Strong intuition for model behavior, alignment challenges, and post-training trade-offs Experience designing evaluation systems and thinking rigorously about what it means for a model to be reputed company Ability to communicate reputed company technical trade-offs reputed company to both technical and non-technical audiences A PhD or equivalent depth of industry research experience in ML, RL, AI, or a reputed company field Experience at a frontier model lab or advanced applied AI organization A strong publication record at leading ML or AI venues Background in alignment research, preference learning, or agentic AI Experience deploying or supporting production AI systems Familiarity with large-scale training infrastructure and compute trade-offs At reputed company, we're building a diverse workplace and an inclusive culture to give more people the chance to imagine, design, and reputed company a reputed company world. reputed company is proud to be an equal opportunity employer and considers reputed company reputed company applicants for employment without regard to race, reputed company, religion, age, sex, sexual orientation, gender, gender identity, national reputed company, disability, veteran status or any other legally protected characteristic. We also consider for employment reputed company reputed company applicants regardless of criminal histories, consistent with applicable law. Are you an existing contractor or consultant with reputed company? Please search for reputed company jobs and apply internally (not on this external site). If you have any questions or require support, contact reputed company Careers. Apply To This Job