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Data Annotator Jobs in California.

All active Data Annotator roles based in California.

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Total jobs
304
positions indexed
New today
15
last 24 hours
Companies
121
actively hiring
Worldwide remote
0
from anywhere

How many Data Annotator jobs in California are there right now?

There are 304 open Data Annotator jobs in California on JobsRadar right now, from 121 companies hiring directly. 15 were added in the last 24 hours; the board was last refreshed on October 21, 2026 at 01:25 UTC.

search: data annotation in: California Clear all
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Zefr
Multilingual Data Annotation Specialist
Zefr
⚡ Apply early Marina del Rey, CA Hybrid
● New 👁 Seen ✓ Applied 6h ago
Redwood Materials
Software Engineer - ML/Computer Vision (Battery Sorting)
Redwood Materials
⚡ Apply early McCarran, NV; San Francisco, C... Onsite $152,500–$200,000
● New 👁 Seen ✓ Applied 7h ago
SA
Senior Operations Manager, Enablement - Delivery
Snorkel AI
⚡ Apply early New York City, NY (Hybrid); Sa... Hybrid $160,000–$200,000
● New 👁 Seen ✓ Applied 7h ago
Veeam Software
Security Engineer III
Veeam Software
⚡ Apply early San Jose, CA, USA Onsite $205,920–$343,200
● New 👁 Seen ✓ Applied 10h ago
Roblox
Senior Machine Learning Engineer, 3D Data
Roblox
⚡ Apply early San Mateo, CA, United States Onsite $212,490–$295,250
● New 👁 Seen ✓ Applied 18h ago
MR
QA Reviewer, Data Annotation
Mind Robotics
⚡ Apply early Palo Alto Onsite
● New 👁 Seen ✓ Applied 19h ago
Sieve
Product Operations Lead
Sieve
⚡ Apply early San Francisco Onsite
● New 👁 Seen ✓ Applied 22h ago
RO
Strategic Projects Lead
Roboflow
⚡ Apply early San Francisco Onsite $150,000–$300,000
● New 👁 Seen ✓ Applied 22h ago
RO
Senior Software Engineer
Roboflow
⚡ Apply early San Francisco Onsite $250,000–$400,000
● New 👁 Seen ✓ Applied 22h ago
RO
Member of Operations Staff
Roboflow
⚡ Apply early San Francisco Onsite $150,000–$300,000
● New 👁 Seen ✓ Applied 22h ago
HUD
Delivery Engineer
HUD
⚡ Apply early San Francisco Onsite $100,000–$225,000
● New 👁 Seen ✓ Applied 22h ago
HUD
Senior Software Engineer, Reinforcement Learning
HUD
⚡ Apply early San Francisco Onsite $100,000–$225,000
● New 👁 Seen ✓ Applied 22h ago
42dot
Senior ML Platform Engineer (Autonomous Driving)
42dot
⚡ Apply early Sunnyvale, United States Hybrid $133,000–$254,000
● New 👁 Seen ✓ Applied 22h ago
Brightmachines
Senior Robot Perception Engineer - Visual Inspection/MLOps
Brightmachines
⚡ Apply early Burlingame, California Hybrid
● New 👁 Seen ✓ Applied 22h ago
Stand Insurance
Applied Science DevOps Lead
Stand Insurance
⚡ Apply early San Francisco Onsite $240,000–$295,000
● New 👁 Seen ✓ Applied 23h ago
LaunchDarkly
Backend Software Engineer, SDK
LaunchDarkly
⚡ Apply early Remote - US · location restricted
● New 👁 Seen ✓ Applied 1d ago
GL
Director – Media & Entertainment Partnerships
Glance
⚡ Apply early Los Angeles, CA Onsite $221,000–$250,000
● New 👁 Seen ✓ Applied 1d ago
SN
Staff Software Engineer, Frontier Security Team
Snowflake
⚡ Apply early US-CA-Menlo Park Onsite $236,000–$295,000
● New 👁 Seen ✓ Applied 1d ago
Reflection
Human Data Operations Manager
Reflection
⚡ Apply early New York, NY Onsite
● New 👁 Seen ✓ Applied 1d ago
Mercor
Senior HR Business Partner, Delivery
Mercor
⚡ Apply early San Francisco Onsite $180,000–$240,000
● New 👁 Seen ✓ Applied 1d ago
Mercor
Chief of Staff, Delivery Operations
Mercor
⚡ Apply early San Francisco Onsite $180,000–$230,000
● New 👁 Seen ✓ Applied 1d ago
Mercor
Mercor AI Safety Fund Grants
Mercor
⚡ Apply early San Francisco Onsite
● New 👁 Seen ✓ Applied 1d ago
Mercor
Research Scientist, APEX Benchmarks
Mercor
⚡ Apply early San Francisco Onsite $200,000–$500,000
● New 👁 Seen ✓ Applied 1d ago
Mercor
Product Engineer, Studio Platform
Mercor
⚡ Apply early San Francisco Onsite $160,000–$500,000
● New 👁 Seen ✓ Applied 1d ago
Mercor
Engineering Manager, Applied AI
Mercor
⚡ Apply early San Francisco Onsite $250,000–$400,000
● New 👁 Seen ✓ Applied 1d ago

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Frequently asked questions

How many Data Annotator jobs in California are open right now?
304 Data Annotator jobs in California are open across 121 companies, as of October 21, 2026.
Which companies are hiring Data Annotator jobs in California?
Zefr, Redwood Materials, Snorkel AI, Veeam Software and Roblox are among the 121 companies currently hiring Data Annotator jobs in California.
How current are these listings?
Every listing comes straight from the employer’s own careers system and is re-checked three times a day. This page was last updated on October 21, 2026 at 01:25 UTC.

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