Raydar Logo

Raydar

Research Scientist

Posted Yesterday
Be an Early Applicant
In-Office
San Francisco, CA, USA
250K-500K Annually
Mid level
In-Office
San Francisco, CA, USA
250K-500K Annually
Mid level
Lead applied machine learning research from ideation through training, evaluation, and production deployment. Fine-tune language and multimodal models using reinforcement learning, develop autonomous agents and simulated environments, build data pipelines and evaluation suites, and investigate planning, memory, context retention, error recovery, and human-agent interaction. The role also contributes to research priorities, technical direction, and complete production-ready systems.
The summary above was generated by AI

About the company

Our client is an artificial intelligence company.

The role

Raydar is recruiting for this role on behalf of our client. Lead applied machine learning research projects from initial idea through model training, testing and production rollout. Build the tooling that supports experimentation and contribute to the technical direction of a young research group.

What you'll do

- Fine-tune large language and multimodal models after pretraining, using reinforcement learning and related techniques.

- Investigate how autonomous software agents can stay effective on extended tasks, including planning, retaining context, recovering from errors and deferring to people at the right moments.

- Create simulated software environments, data generation pipelines and test suites used to train and measure agents.

- Develop approaches that let agents interpret and keep track of what users are trying to achieve across lengthy sessions.

- Plan careful experiments and choose the problems most worth pursuing.

- Move promising findings into production features.

- Contribute to setting research priorities and engineering direction for the group.


Requirements

What we're looking for

- Outstanding skill in both machine learning research and engineering.

- Deep expertise in at least one area such as model fine-tuning, reinforcement learning, agents, reasoning, memory and context handling, computer use, evaluation or human-agent interaction.

- Sound judgment in designing experiments and a habit of delivering complete working systems instead of one-off demos.

- Ability to shift smoothly between exploratory research, large training runs and production engineering.

- A track record of owning significant research work, for example a notable model, agent system, dataset, publication or open-source contribution.

- Self-driven, ambitious and at ease working on open-ended problems with no known answer.

- Roughly 3 to 6 years of research or engineering experience, with time at a leading AI lab valued.

Bonus points

- Direct experience with reinforcement learning for model fine-tuning, agents or long-running systems.

- A solid record of publications, open-source work or released benchmarks.

- Experience building training environments, data pipelines or test harnesses.

- Exceptional competitive achievement, such as in olympiads or quantitative fields.


Benefits

Compensation and benefits

- Base salary: USD 250,000 to 500,000 per year

- Equity

Location and work model

- San Francisco, CA, United States

- On-site, in office

- Full-time

Similar Jobs

16 Days Ago
Hybrid
Sunnyvale, CA, USA
219K-335K Annually
Senior level
219K-335K Annually
Senior level
Automotive • Big Data • Information Technology • Robotics • Software • Transportation • Manufacturing
Conduct advanced AI and machine learning research for autonomous driving, designing and prototyping foundation models, generative AI, multimodal systems, and other modern ML approaches. Shape technical roadmaps, mentor researchers and engineers, collaborate across multidisciplinary teams, and represent GM through publications, patents, and conference participation.
Top Skills: AdasAutonomous DrivingDiffusion ModelsFoundation ModelsGenerative AiImage GenerationImitation LearningMachine LearningMultimodal SystemsPythonReinforcement LearningSelf-Supervised LearningTransformersVideo GenerationVlas
3 Hours Ago
In-Office
Santa Clara, CA, USA
168K-265K Annually
Entry level
168K-265K Annually
Entry level
Artificial Intelligence • Computer Vision • Hardware • Robotics • Metaverse
Conduct fundamental research on novel large-scale generative AI methods, particularly for biomolecular and scientific applications. Design and implement models, publish original research, collaborate with research and product teams, present at conferences, and transfer technology to products. The role requires strong mathematical foundations, generative AI expertise, scientific data modeling experience, programming skills, deep learning framework knowledge, and a strong research record.
Top Skills: C++CudaDeep LearningGenerative AiParallel ProgrammingPythonPyTorch
Yesterday
In-Office
Menlo Park, CA, USA
250K-350K Annually
Senior level
250K-350K Annually
Senior level
Artificial Intelligence • Hardware • Information Technology • Robotics
Research Scientist developing and scaling reinforcement learning methods for frontier scientific language models. Responsibilities include designing compute-scaling experiments, improving policy optimization and credit assignment, developing adaptive sampling and curriculum strategies, studying training bias and stability, and improving training and inference efficiency. The role requires implementing and testing research ideas across complex training systems and transferring small-scale findings to large-scale runs.
Top Skills: Adaptive SamplingAdvantage EstimationCurriculum LearningImportance SamplingLarge Language ModelsPolicy OptimizationReinforcement Learning

What you need to know about the San Francisco Tech Scene

San Francisco and the surrounding Bay Area attracts more startup funding than any other region in the world. Home to Stanford University and UC Berkeley, leading VC firms and several of the world’s most valuable companies, the Bay Area is the place to go for anyone looking to make it big in the tech industry. That said, San Francisco has a lot to offer beyond technology thanks to a thriving art and music scene, excellent food and a short drive to several of the country’s most beautiful recreational areas.

Key Facts About San Francisco Tech

  • Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Google, Apple, Salesforce, Meta
  • Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
  • Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
  • Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account