Staff Researcher - Post-Training LLMs for Production
Mixpeek
Modal is building a platform that covers the full life cycle of LLMs—from training to deployment and observability. We already run multi-node training and elastic inference, and we seek a research‑leaning post‑training specialist to join our team in San Francisco or NYC. You will own hands‑on post‑training research with the research lead, partner with customers and Forward Deployed Engineers, and explore questions like distillation from production traffic, while showing how the platform enables #J-18808-Ljbffr Mixpeek
- Fearn is seeking an experienced AI researcher to join our team in San Francisco. You will train models, design inference... ...collaborate across research and product teams to deploy production-ready... ...infrastructure with a focus on post-training techniques and GPU optimization...Training
$216.3k - $280.8k
...close on: 08/03/2026Job posting may be removed earlier... ...are leading frontier AI research across Cisco. Our... ...reasoning systems, scalable training algorithms, evaluation... ...advance both science and products. Our researchers... ...training and alignment, LLMs, agentic AI, reinforcement...TrainingFull timeTemporary workLocal areaFlexible hours$200k - $280k
...architectures, engines) and post-training / RL systems. We build... ...that can run at production scale. Our mandate is... ...RL / post-training for LLMs or large models (e.g.,... ...training stack. Have a solid research foundation in your... ...technical leadership (Staff level) Set technical...TrainingFull time- ...almost immediately. No speculative research track here. If you want your work to hit production within weeks, not years, this is... ...audio codecs, and getting LLMs to understand and reason over audio... ...from theory through large-scale training to production inference serving...TrainingPermanent employmentFull timeImmediate start
$200k - $300k
Unsiloed AI — Founding ML Researcher Type: Full-time | On-site | San... ...documents into LLM-ready data. Its production-grade APIs ingest, parse,... ...and JSON that AI agents and LLMs can work with reliably from day... ...— research experimentation training evaluation production deployment...TrainingFull timeH1bWork at officeVisa sponsorshipFlexible hoursWeekend work$139.6k - $225.78k
...passionate and self-driven Sr. Staff Researcher to join our Cloud-Delivered... ...powers our next-generation products. You will build and optimize... ..., Scikit-Learn) - including training and testing workflows, and... ...who receive an offer at the posted level, the starting base salary...TrainingFull timeWork experience placementWork at officeVisa sponsorshipWork visa$204k - $300k
...Advanced Technology Group (ATG) is the research division of the company. ATG’s mission is... ...translate research breakthroughs intoreal-world products.• Influence Dolby’s long-term technology... ...parity, and relevant education or training. Your recruiter can share more about the...TrainingFull timeLocal areaWorldwideFlexible hours- Kindredventures in San Francisco seeks researchers to build the planning layer on top of a Large Physics foundation Model (LPM), enabling... ..., and infrastructure, taking ideas from prototype to scaled training runs with a focus on uncertainty and decision quality. #J-188...Training
- ...San Francisco, CA, USA Posted on Jul 31, 2026 About TBC... ...neuroscience, AI research and software engineering... ...imagined futures. As a Staff AI Researcher you will... ...TBC’s core research and product areas. You will make high... ...including core modeling, training, evaluation, and...Training
- Reflection, based in San Francisco, is on a mission to build open superintelligence accessible to all. The role involves researching and developing solutions within AI, with responsibilities ranging from algorithm design to infrastructure optimization. Ideal candidates...
- Cartesia is hiring for an Audio Post-Training role to build and improve capabilities that shape how users interact with our generative audio models. This team spans research to production, designing evaluations, data pipelines, finetuning, RL, and model evaluation. You...Training
$200k - $300k
Founding ML Researcher San Francisco In office Full-time We are hiring a Founding ML... ...independently drive systems from idea to production. What You Will Do As a Founding ML... ...lifecycle: research → experimentation → training → evaluation → production deployment Work...TrainingFull timeWork at officeVisa sponsorship- Charles Schwab is looking for an AI Researcher to join their team in San Francisco. In this hybrid role, you will collaborate on AI solutions... ...performance improvements. You will work closely with product partners and engineers, enabling scalable AI applications while...
$150k - $250k
...global social organizations.We research and deploy technologies that... ...execution of AI systems, and products that transform mission-... ...org.Key ResponsibilitiesThe Post-Training team focuses on adapting foundation... ...Models: You’ve tuned or adapted LLMs/SLMs to specialized domains...TrainingWork at office3 days per week$150k - $300k
...Join to apply for the Applied Researcher role at Variant Overview Variant is hiring an applied researcher... ...and taste. This role involves designing, training, and evaluating deep neural networks and large language models (LLMs); prototyping quickly; turning promising ideas...TrainingFull time- ...on NLP or Masters with 10 years of industrial NLP research experience* Core contributor to team that has trained a large language model from scratch (10B + parameters... ...models (e.g. technical reports of pre-trained LLMs, SSL techniques, model pre-training optimization)*...TrainingFull timePart time
$218.7k - $249.6k
...capabilities with breakthrough product experiences and... ...touches every aspect of the research life cycle, from... ...development, from design through training, evaluation, validation... ...reports of pre‑trained LLMs, SSL techniques, model... ...note that any position posted in Canada is for...TrainingFull timePart timeLocal areaFlexible hours- ...capabilities with breakthrough product experiences and scalable,... ...touches every aspect of the research life cycle, from partnering with... ...development, from design through training, evaluation, validation, and... .... PhD focused on guiding LLMs with further tasks—supervised...TrainingFlexible hours
$262.5k - $299.6k
...Applied Researcher II (AI Foundations, LLM Core and Agentic... ...with breakthrough product experiences and scalable... ..., from design through training, evaluation,... ...reports of pre‑trained LLMs, SSL techniques, model... ...pay at the time of this posting. Salaries for part‑time...TrainingFull timePart timeLocal areaFlexible hours$150k
...Labs gets LLM apps out of POCs and into production. We eliminate the risk and improve the reliability... ...fuzz-testing them. We are looking for Research Engineers to help develop our... ...influence how the world responsibly uses LLMs. Responsibilities Develop optimization,...Visa sponsorship$311.9k - $356k
...Distinguished Applied Researcher Overview: At Capital... ...capabilities with breakthrough product experiences and... ..., from design through training, evaluation,... ...reports of pre-trained LLMs, SSL techniques, model... ...pay at the time of this posting. Salaries for part-time...TrainingFull timePart timeLocal areaFlexible hours$188k - $275k
...experience. 8 years of experience working with SQL in applied research settings for consumer products. Experience in programming languages used for data... ...-related skills, experience, and relevant education or training. US: $188000 - $275000 (USD) + 20% bonus target +...TrainingTemporary work$295k
...effort: building scalable, research-driven systems that... ...into actionable, production-facing improvements. The... ...discovered attacks into training data, evals, and... ...hands-on experience with LLMs and agents, including... ...you believe this job posting is non-compliant, please...Training- ...measure monitorability, which training mechanisms affect monitorability... ...monitoring, and frontier‑risk research. We care most about... ...synthetic data, mid‑training, post‑training, reinforcement learning... ...debugging large ML models, especially LLMs. Deep curiosity, interest in...TrainingWork at officeRelocation package3 days per week
- .... About the role Join our team as an AI Research Engineer and help us push the boundaries... ...capabilities of traditional Large Language Models (LLMs), tackling complex reasoning challenges.... ...new reasoning algorithms and models Pre-train and fine-tune the State-of-the-Art LLMs...TrainingContract work
$190k - $250k
...technology. The flagship product—an AI-driven, non-... ...patients worldwide. As a Staff Application Database Architect... ..., partner with IT, Research, and Systems... ...including recruitment, hiring, training, relocation, promotion,... ...termination.Positions posted for Heartflow are not intended...TrainingWork experience placementLocal areaWorldwideRelocation- ...started. We use these datasets to train models and agents that connect... ...for a machine learning researcher to help define and build the core... ..., evaluation, deployment, and product. You will build systems that drug... ..., and interpretability. LLMs, agents, retrieval, tool use,...Training
- ...foundational layer of AI by training our own AI models. Our... ...nothing to do with this job post. Where you are Technical... ..., or PhD) Deep learning research: publications at top ML... ...foundation models Trained LLMs, LVMs, or any foundation model Product: experience with defining...Training
- AI Researcher Location: San Francisco About Hum.ai is building planetary superintelligence... ...foundation models that go far beyond LLMs. You’ll be at the core of a moonshot journey... ...implementing a wide range of pre‑training and post‑training models, including large foundation...TrainingRemote work
$300k - $405k
...group of committed researchers, engineers, policy... ...across our product experiments and action... ...and working with LLMs, enough to run your... ...standalone academic post. You will publish... ...combination of education, training, and/or experience... ..., we expect all staff to be in one of...TrainingImmediate startVisa sponsorship
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