OptiTalent · Job Finder
Science jobs in California, United States
886 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
Science jobs in California at a glance
- Open roles
- 886
- Remote
- 7%
- Posted in the last 30 days
- 235
- Advertised pay, middle half
- $126K – $300Kmedian $190K
From the 708 science jobs here that state yearly pay in USD: the top of each advertised range. Updated nightly.
Hiring most here
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521–540 of 886 jobs
Member of Technical Staff - Post-Training
2 months agoReflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffScience & researchBuild systems that transform powerful pre-trained models into aligned and general agents.; Drive research and engineering initiatives that push the frontier of post-training, from data curation to large-scale optimization.; Develop data generation pipelines, reward models,…
Researcher, Frontier Risk Mitigations
2 months agoOpenAI · San Francisco, California, United States +1
Full-timeMid level$380K – $500K a yearScience & researchModels are becoming increasingly capable—moving from tools that assist humans to agents that can plan, execute, and adapt in the real world. Mitigating the frontier risks resulting from these capabilities is paramount to OpenAI’s ability to continue deploying models safely.
AI Research Scientist - Early Career (PHD/MS)
3 months agoGoaly · Palo Alto, California, United States
On-siteFull-timeScience & researchYou will own research at the intersection of agentic reinforcement learning, post-training, evaluation, environments, and scaling. You will identify high-leverage questions, design and run decisive experiments, and translate results into model improvements and reusable systems.
Senior Research Associate, Chemistry R&D
3 months agoSarmal Inc · San Diego, California, United States
On-siteFull-timeSenior$72K – $85K a yearScience & researchSarmal, Inc. is a San Diego–based biotechnology company developing next-generation genomics and molecular detection platforms. Our work integrates molecular biology, chemistry, and advanced systems engineering to enable faster, more precise, and more accessible genomic insights.
Researcher, Recursive Self-Improvement Safety
3 months agoOpenAI · San Francisco, California, United States +1
Full-time$380K – $500K a yearScience & researchModels are becoming increasingly capable—moving from tools that assist humans to agents that can plan, execute, and adapt in the real world. Mitigating the frontier risks resulting from these capabilities is paramount to OpenAI’s ability to continue deploying models safely.
Associate Director of Research, Vera California
3 months agoVera Institute of Justice · Los Angeles, California, United States
RemoteFull-timeDirector$129K – $134K a yearScience & researchVera California aims to advance policies and funding to reduce incarceration and support the community-based systems of care that promote safety and wellness in California. We use data and policy analysis to drive concrete change and center racial equity (e.g., sharing data…
Senior Analytical Chemist
3 months agoCertified Group · Burbank, California, United States
Senior$32.00 – $45.00 an hourScience & researchWe are currently seeking a Senior Analytical Chemist with a focus on GC analytical testing technique to join our growing team. The Senior Chemist Performs advanced analytical testing of dietary supplement, cosmetic, personal care, and related products using established and…
AIUC-1 Standard
3 months agoArtificial Intelligence Underwriting Company · San Francisco, California, United States
On-siteFull-timeMid level$200K – $400K a yearScience & researchAI agents are being deployed into the economy faster than anyone has figured out how to hold them accountable. To unlock safe & secure adoption of agents in critical workflows, organizations need a way to validate what agents to trust. We are creating AIUC-1 to fill that gap,…
Tapestry · Mountain View, California, United States
HybridMid level$147K – $221K a yearScience & researchTapestry is a group within Google working to build the AI-powered electric grid. We are tackling one of the world’s most important infrastructure challenges: helping the energy system become more visible, understandable, reliable, affordable, abundant, and clean.
Research Scientist, Analytical Chemistry
3 months agoonepot · South San Francisco, California, United States
On-siteFull-time$180K – $240K a yearScience & researchYou will own analytical data quality end to end — the methods, the interpretation standards, and the pipelines that apply them to everything the platform runs.
Research Scientist, Organic Chemistry
3 months agoonepot · South San Francisco, California, United States
On-siteFull-time$170K – $220K a yearScience & researchIn this position, you will bring new reactions, transformations, and capabilities onto onepot's automated platform, and make them work reliably at scale.
Senior Director, Virtual Biology Initiative
3 months agoBiohub · Redwood City, California, United States
HybridDirector$274K – $343K a yearScience & researchThe Virtual Biology Initiative has the potential to transform biology by creating the data foundation needed for predictive AI models of living systems. Achieving this vision will require an unprecedented level of collaboration across the global scientific ecosystem.
Senior Manager, Lab Operations
3 months agoNewLimit · South San Francisco, California, United States
Manager$140K – $170K a yearScience & researchNewLimit is seeking an Senior Manager, Lab Operations with extensive experience in a life science laboratory setting to join our Operations team. Our Operations team is focused on increasing the speed and efficiency of our scientific research programs so we can deliver more…
Analytical Chemist, Vitamin Department
3 months agoCertified Group · Burbank, California, United States
Mid level$30.00 – $35.00 an hourScience & researchWe are currently seeking a Chemist to join our growing team.
LatchBio · San Francisco, California, United States
On-siteFull-timeLead / staffScience & researchYou will be Latch's translational medicine expert, defining benchmarks and evaluating model answers based on the standards of physicians, investigators, and regulators.
Lab Technician (Contractor)
3 months agoEtched · San Jose, California, United States
On-siteContractScience & researchWe're looking for a hands-on Lab Technician to support our hardware development and validation efforts. As a Lab Technician, you'll build, integrate, and debug prototype servers and racks — assembling boards into chassis, routing power and signal cabling, and getting systems to…
Member of Technical Staff - Research
3 months agoEmerald AI · Oakland, California, United States +2
HybridFull-timeLead / staffScience & researchAs a Member of Technical Staff, you will help invent and build the next generation of software systems that enable AI infrastructure to operate intelligently under power constraints. You will work at the intersection of AI systems, distributed computing, cloud infrastructure,…
Research Associate, R&D Operations
3 months agoSila · Alameda, California, United States
Full-timeEntry levelFrom $31.00 an hourScience & researchPrepare and characterize chemical mixtures and other materials to be used in lithium-ion batteries; Assemble lithium-ion batteries and test them on battery cyclers, which include heated chambers; Fabricate mechanical fixtures, undertake tool preventative maintenance, and…
Xaira Therapeutics · South San Francisco, California, United States
Lead / staff$148K – $185K a yearScience & researchWe are seeking a Senior Project Manager, Biologics R&D to serve as project manager of record for our lead T-cell engager program, as it advances from late-stage research through development candidate nomination and IND-enabling studies. You will partner closely with the Program…
Technical Program Manager, RL Research
3 months agoAnthropic · San Francisco, California, United States +1
On-site$365K – $435K a yearScience & researchOur Reinforcement Learning teams are central to advancing our AI systems, contributing to every Claude model and driving the autonomy and coding gains in our latest releases. The work spans computer use, code generation through RL, fundamental RL research for large language…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.