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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181–200 of 886 jobs
Senior Research Scientist
3 weeks agoPersona · San Francisco, California, United States
HybridFull-timeSenior$190K – $250K a yearScience & researchProving who someone is online has never been harder or more important. You'll research how to detect fraud and verify identities more accurately. Your work will include detecting AI-generated and manipulated images, understanding how models perform across populations, and…
Research Scientist
3 weeks agoPersona · San Francisco, California, United States
HybridFull-time$150K – $200K a yearScience & researchProving who someone is online has never been harder or more important. You'll research how to detect fraud and verify identities more accurately. Your work will include detecting AI-generated and manipulated images, understanding how models perform across populations, and…
Protein Chemist, Food Science
3 weeks agoJust Food Company · Emeryville, California, United States
Full-time$135K – $158K a yearScience & researchWe are looking for a Food /Process Chemist to help advance the science behind our food and protein platforms.
Microbiologist 1
3 weeks agoCertified Group · Burbank, California, United States
Entry level$23.00 – $25.00 an hourScience & researchPrepare samples for analytical and microbiological testing of nutraceutical products and supplements ingredients, and environmentals. The role is responsible for the application of approved microbiological techniques and methodologies used in analytical testing.
Tapestry · Mountain View, California, United States
HybridSenior$174K – $261K 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.
Editorial Researcher
3 weeks agoY Combinator · San Francisco, California, United States
Full-time$180K – $200K a yearScience & researchY Combinator is looking for an Editorial Researcher to join the YC Media team. We make content for people who are curious about startups, technology, AI, science, and the future. That includes videos and podcasts, essays, original research, and new projects built around the…
NewLimit · South San Francisco, California, United States
Senior$130K – $171K a yearScience & researchNewLimit is a biotechnology company working to radically extend human healthspan. We’re developing medicines to treat aging by reprogramming the epigenome, a new therapeutic mechanism to restore youthful function in aged cells. We’ve built the world’s leading experimental and…
Staff Biostatistician (Clinical Validation)
3 weeks agoNatera · San Carlos, California, United States
Lead / staff$180.4K – $225.5K a yearScience & researchStrategic Study Design and Analysis: Independently lead the design, analysis, and interpretation of clinical validation studies to support in vitro diagnostic approvals (e.g., CDx, 510(k), PMA, etc.); Regulatory Compliance: Ensure statistical methodologies and analyses meet the…
Arc Institute · Palo Alto, California, United States
TemporarySenior$84.3K – $106K a yearScience & researchWe are seeking a highly skilled and motivated Senior Research Associate to join the Molecular Engineering team within the Genome Engineering Technology Center at Arc to support the routine execution of arrayed and pooled genetic perturbation screens in disease-relevant, human…
Research Operations Lead
3 weeks agoMercury · San Francisco, California, United States +3
RemoteLead / staff$189.4K – $236.7K a yearScience & researchOwn the strategy, roadmap, and operating model for research at Mercury, enabling Product, Design, and Marketing to run research with autonomy; Apply senior research judgment to complex or high-stakes work, using recurring gaps to strengthen the standards and guidance that raise…
Sarmal Inc · San Diego, California, United States
On-siteFull-timeEntry level$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.
Packaging Quality Lab Manager
3 weeks agoMonster Energy · Corona, California, United States
On-siteSenior$105K – $134K a yearScience & researchForget about blending in. That's not our style. We're the risk takers, the trailblazers, the gamechangers. We're not perfect and we don't pretend to be. We're raw, unfiltered, and a bit unconventional. Our drive is just like our athletes, unrivaled. The power is in your hands…
Research Scientist - Pre-training
3 weeks agoPluralis Research · San Francisco, California, United States +1
RemoteFull-timeScience & researchDistributed pretraining: Implement and optimize model-parallel training. Data, pipeline, and tensor parallelism for large models on heterogeneous GPUs under low-bandwidth, high-latency links.; Performance optimization: Implement techniques that reduce communication overhead…
Pluralis Research · San Francisco, California, United States +1
RemoteFull-timeScience & researchOwn the threat model: You enumerate what a malicious or careless worker can do across pre-training, post-training, and inference — training disruption and denial-of-service, free-riding, model poisoning and backdoors, data extraction from gradients and activations, reputation…
Pluralis Research · San Francisco, California, United States +1
RemoteFull-timeScience & researchOwn the inference stack: You build and own it end-to-end. Pipeline-parallel execution, placement and routing, the transport, the serving engine, and failure handling. You set the direction, and you make things happen.; Invent the algorithms: Making inference fast on consumer…
Research Scientist - Post-Training
3 weeks agoPluralis Research · San Francisco, California, United States +1
RemoteFull-timeScience & researchBuild the post-training stack: You build the RL training loop end-to-end: rollout ingestion from the geo-distributed inference pipeline, reward computation, policy updates, and getting updated weights back out to the network. You set the direction, and you make things happen.;…
Welo Global · California, United States
On-siteFull-time$40.00 an hourScience & researchWe are looking for a Hardware Lab Technician to own the physical side of a large-scale robot data collection operation. You’ll keep the fleet running, build what’s next, and be the person the lab calls when something stops working. This is a hands-on role across research and…
Member of Technical Staff, Science
3 weeks agoLatchBio · San Francisco, California, United States
On-siteFull-timeLead / staffScience & researchOur mission is to advance humanity's ability to engineer biology. We approach this by understanding and improving AI’s application to biology across basic research, drug discovery, and biosecurity. We are a team of engineers, scientists, and operations specialists who are…
Janux Therapeutics · San Diego, California, United States
On-siteFull-timeDirector$268.5K – $316K a yearScience & researchLead immunology-focused nonclinical and clinical translational strategy for ARM programs, ensuring analyses address program-critical biological and clinical questions.; Define immune-monitoring strategies designed to deepen understanding of mechanism of action, pharmacodynamic…
Senior Clinical Research Scientist
3 weeks agoNoctrix Health · Pleasanton, California, United States
HybridFull-timeSenior$130K – $150K a yearScience & researchDesign and lead multiple prospective human-subjects clinical research studies in parallel, from study concept and protocol development through execution, analysis, and reporting; Develop research strategies, study plans, protocols, case report forms, statistical analysis plans,…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.