Staff Agent RL Post-Training ML Research Engineer
United States Digital Space LLC
Scale is hiring a Staff Agent Post-Training MLRE in New York to build and scale an Agent RL training platform for enterprise use-cases. You will train state-of-the-art models on both internal and community research and deploy them to customers. Ideal candidates have 5+ years in LLM training, experience with post-training methods, and recent publications at NEURIPS/ICML/ICLR. A PhD or Master's in CS or related field is required. Location-based salary ranges apply with equity and benefits. #J-18808-Ljbffr United States Digital Space LLC
- Scale is hiring a Staff Machine Learning Research Engineer, Post-training, for Enterprise GenAI in San Francisco. The role focuses on building an Agent RL training platform and integrating cutting-edge research into the training stack to deploy high‑performing enterprise...Training
- Scale is seeking a Machine Learning Research Engineer, Agents - Enterprise GenAI to advance state-of-the-art Agent RL training for enterprise datasets. You will train models, iterate... ...with LLMs in production, experience with post-training methods (RLHF/RLVR, PPO/GRPO), and...Training
$264.8k - $331k
...on building out state of the art post-training algorithms to reach the performance necessary for complex agents in enterprises around the world. The Enterprise ML Research Lab works on the front lines of... ...be working on applying our Agent RL Training + Building algorithms...TrainingFull time- Scale is hiring a Machine Learning Research Engineer, Agent Data Foundation - Enterprise GenAI in San Francisco. You’ll work on synthetic data pipelines, agent-building frameworks, and post-training RL approaches to advance enterprise GenAI capabilities. You should have...Training
$264.8k - $331k
Machine Learning Systems Research Engineer, Agent Post-training - Enterprise GenAI AI is becoming vitally important... ...around the world. The Enterprise ML Research Lab works on the front lines... ...the algorithms for our next-gen Agent RL training platform, support large scale...TrainingFull timeContract workFor contractorsFor subcontractorWork at office- ...States Digital Space LLC in New York is seeking researchers to advance AI through production-grade LLM work, synthetic data pipelines and agent-building technologies. You will develop data for reinforcement learning post-training and build agents from production traces to...Training
$264.8k - $331k
...About the General Agents TeamThe General... ...RoleAs a Senior/Staff Machine Learning Engineer (MLE) on the... ...spaces, balancing research-driven approaches... ...Experience deploying ML systems in cloud... ...on each job posting reflects the... ...relevant education or training. Scale employees...TrainingFull time$250k - $300k
...models at leading research labs and enterprises... ...produce high-quality training data at scale... ...evaluate autonomous agent capabilities. Design... ...reinforcement learning (RL) methodologies.... ...conferences, and blog posts. What You Bring Ph.... ...sophisticated ML problems with successful...TrainingWork at officeFlexible hours2 days per week$190k - $270k
...TeamThe Databricks AI Research organization is... ...the models and agents that unlock it. Our... ...stack, from model training to advanced multi-... ...technical pillars include post-training... ...reinforcement learning (RL), and the... ...with product and engineering rigor.Clear communication...TrainingLocal areaWorldwide- Preference Model is seeking Research Engineers or Research Scientists to advance self-directed learning in AI. The role involves training and evaluating models within proprietary RL environments and optimizing ML infrastructure. Candidates will benefit from competitive...Training
- Frontier Arc in San Francisco seeks a Research Engineer to push the core RL research agenda. You’ll own the end-to-end loop—from designing policies to training, evaluation, and interpretation—working on a proprietary simulator that aims to replace costly real-world data...Training
$227.2k - $284k
...paired with applied ML research, design, and... ...workstreams — agent evaluation and... ...About the RoleAs a Staff Machine Learning Research Engineer, you will... ...This could mean training and fine-tuning... ...online or offline RL — and validate... ...on each job posting reflects the minimum...TrainingFull time- ...Perception AI Engineer Specter's mission is to help automate the physical world. Today... ...video sensors with state-of-the-art AI agents that answer any question, anywhere in their... ...-collection, labelling, and model re-training platform Driving the design behind a...Training
$189.6k - $237k
Scale’s ML platform (RLXF) team builds... ...large language model training and inference. The... ...powering MLEs, researchers, data scientists and... ...software engineering skills, proficient... ...Demonstrated expertise in post-training methods &... ...tool use, reasoning, agents, and multimodal,...TrainingFull time$200k - $350k
...in San Francisco is seeking a Machine Learning Research Engineer to own end-to-end research cycles. The role involves training models across creative domains, developing... ...candidate will have 2-6+ years of experience in ML research, strong skills in Python and PyTorch,...Training- Kindredventures in San Francisco seeks a Machine Learning Engineer to work with the full ML stack, implementing advanced model architectures and... ...in machine learning principles, extensive experience in training models, and familiarity with distributed training processes...Training
$75 - $90 per hour
...technical talent with leading AI research labs. Headquartered in San... ...Human Baseliner for Open-Ended ML Research Tasks Type: Contract... .... Complete pre-task and post-task questionnaires. Submit... ...design, contrastive training, generative modeling, multilingual...TrainingContract workFor contractorsSummer workRemote work- cursor is hiring a Research Scientist to drive research in reinforcement learning... ...should have a deep background in RL, be excellent programmers, and be... ...improving data quality for model training, and executing realtime RL for coding agents. This position offers significant...TrainingWork at office
- Fundamental AI Research Institute in San Francisco is seeking researchers experienced in LLM post-training, agentic infrastructure, RL environments, and evaluation harnesses to accelerate flagship AI research. Responsibilities include building and scaling post-training...Training
- Tilde Research is a moonshot AI lab focused on mechanistic interpretability, new architectures, and pretraining science. As an ML Engineer, you will build and operate the infrastructure enabling cutting-edge research in training and evaluating large models. You will optimize...Training
$150.4k - $277.6k
...and AI We\'re seeking research engineers to build systems for breakthrough... ...innovations in AI agents, reinforcement... ...stack, including model training, harness design, evaluation... .... 2+ years of ML engineering experience... ...applications to this posting on an ongoing basis....TrainingRelocation- Scale AI is hiring a Machine Learning Systems Research Engineer, Agent Post-training for our Enterprise GenAI team in New York. You will build, optimize,... ...from cybersecurity to healthtech. You will collaborate with ML engineers to run large-scale experiments, iterate on post...Training
- Mariana Minerals is seeking a Machine Learning Engineer to develop reinforcement learning for autonomous mineral refining controllers.... ...with process and chemistry experts, ship robust code, and advance training pipelines from simulators toward live deployment in a fast-...Training
- ...in New York seeks an experienced ML Research Engineer to join the Enterprise ML Research... ...build, profile and optimize our training and inference framework and post-train state-of-the-art models for... ...accelerate research, develop next-gen agent training algorithms for multi-...Training
- ...growing group of committed researchers, engineers, policy experts, and... ...the role Anthropic's RL Data Platform team... ...turn raw feedback into training signal, and the tooling... ...feedback pipelines for ML systems. Experience... ...Currently, we expect all staff to be in one of our...TrainingWork at officeVisa sponsorshipFlexible hours
- Ephapsys seeks a Staff Research Engineer to advance the SDK and platform, focusing on production-grade... ...scalable infrastructure. You will lead AI/ML security, threat modeling, and secure-... ...and cryptographic safeguards for trusted AI agents. #J-18808-Ljbffr Ephapsys
$180k - $240k
...client, a venture-backed AI Startup, is hiring a talented ML/AI Research Engineer to join their team in San Francisco. The successful candidate will lead the design, training, evaluation and optimization of agent-native AI systems, working at the cutting edge of LLMs,...TrainingFull time$200k - $350k
...building at the intersection of research, product, and creativity .... ...a Machine Learning Research Engineer , you’ll own end-to-end research... ..., running, and analyzing post‑training experiments that help models... ...2–6+ years in post‑training, ML research, or ML engineering Strong...Training$170k - $280k
...give leaders clarity and engineers time. We help... ...looking for an Applied ML Engineer to help build... ...experimentation, and model training. You'll work closely with... ...to participate in the research that can push the... ...to date on the latest RL training techniques....TrainingOdd jobFull time$110.7k - $379.2k
Position Summary Research Engineer — Post-Training & Small Language Models (SLMs), Healthcare AI Three hundred fifty million Americans rely on... ...models for healthcare decisioning using verifiable-reward RL — designing reward signals and verifiers grounded in clinical...TrainingLocal areaVisa sponsorship
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