San Francisco, California, United States · On-site
Overview Welo Data is looking for experienced, detail-oriented professionals to join our team as Data Quality Analysts. This role sits at the center of execution and quality — bridging Data Labeling Associates (DLAs) and…
Skills: French Proficiency, Data Annotation, Quality Assurance, Content Quality, AI/ML Data Workflows
San Francisco, California, United States · On-site
$204k–$281k/yr
On Site - South San Francisco. About This Role At Biogen, we are committed to discovering, developing, and delivering innovative therapies for people living with serious neurological and immunological diseases. In this r…
Skills: Biologics Discovery, Antibody Engineering, Molecular Design, Team Leadership, Cross-functional Collaboration
San Francisco, California, United States · Hybrid
$110k–$140k/yr
Job Summary: The Clinical Revenue and Research Data Analyst is a skilled data and information management professional with expertise in data analysis, SQL query development, Tableau, and programming languages such as Pyt…
Skills: SQL, Python, Tableau, Data Analysis, Data Management
San Francisco, California, United States · Remote OK
$120k–$180k/yr
As molecular data generation and frontier model intelligence grows, new approaches to data analysis are needed across the biotech industry. Latch is building intelligent, high performance agents for biological data analy…
Skills: Biologics Discovery, Antibody Engineering, Protein Engineering, Python, R
San Francisco, California, United States · Hybrid
$230k–$385k/yr
About the Team With Codex we’re building an AI software engineer. One that you can pair with, delegate to, or even ask to take on future tasks proactively. Our team is a fast-moving group within OpenAI, bringing together…
Skills: Full-stack software engineering, React, TypeScript, Python, Go
San Francisco, California, United States · On-site
$150k–$350k/yr
About Us Sieve is an AI research lab building the world's highest-quality multimodal datasets — spanning video, audio, images, text, and 3D. We combine exabyte-scale data infrastructure, novel multimodal understanding te…
Skills: Python, PyTorch, Machine Learning, Deep Learning, Fine-tuning
San Francisco, California, United States · On-site
$180k–$280k/yr
About TypeSafe TypeSafe is a frontier model lab. We build reliable and general AI systems to power economically valuable automation. Our mission is to usher in a new era of Transformative Artificial Intelligence (TAI): t…
Skills: Python, TypeScript, Distributed Systems, Networking, API Design
San Francisco, California, United States · Hybrid
$122k–$277k/yr
Job Summary: The position is located at the California Department of Public Health Tuberculosis Control Branch (TBCB) in Richmond, CA. Please note: If selected, the candidate must reside within the state of California. T…
Skills: Tuberculosis Control, Case Management, Clinical Consultation, Policy Development, Epidemiologic Data Analysis
San Francisco, California, United States · On-site
About Dioxycle Dioxycle is pioneering breakthrough carbon utilization technologies that convert industrial emissions into sustainable chemicals with unprecedented energy and cost efficiency. By displacing fossil fuels fo…
Skills: Electro-mechanical Troubleshooting, AC/DC Electrical Systems, Sensor Installation, Actuator Maintenance, Chemical Analysis
San Francisco, California, United States · On-site
$180k–$280k/yr
About TypeSafe TypeSafe is a frontier model lab. We build reliable and general AI systems to power economically valuable automation. Our mission is to usher in a new era of Transformative Artificial Intelligence (TAI): t…
Skills: Python, TypeScript, Next.js, Tailwind CSS, Kubernetes
San Francisco, California, United States · Hybrid
Software Engineer, Generalist XDOF | Full-Time | San Mateo, CA At XDOF, we’re at an inflection point. Frontier labs are racing to build general-purpose robots, and high-quality training data is the bottleneck. We’re buil…
Skills: Python, Backend Development, API Development, Data Pipelines, Full Stack Development
San Francisco, California, United States · On-site
Software Engineer, Full-Stack XDOF | Full-Time | San Mateo, CA At XDOF, we’re at an inflection point. Frontier labs are racing to build general-purpose robots, and high-quality training data is the bottleneck. We’re buil…
Skills: Python, React, Vue, API Design, Full-Stack Development
San Francisco, California, United States · On-site
Our Mission Expand human ambition in the physical world. Critical infrastructure is constrained by labor shortages, hazardous working conditions, and operational complexity. Watney builds and deploys autonomous robotic s…
Skills: ML Infrastructure, Distributed Training, JAX, PyTorch, Python
San Francisco, California, United States · On-site
Our Mission Expand human ambition in the physical world. Critical infrastructure is constrained by labor shortages, hazardous working conditions, and operational complexity. Watney builds and deploys autonomous robotic s…
Skills: Bare-metal Firmware, Low-level Systems Code, CAN, SPI, I2C
San Francisco, California, United States · On-site
Our Mission Expand human ambition in the physical world. Critical infrastructure is constrained by labor shortages, hazardous working conditions, and operational complexity. Watney builds and deploys autonomous robotic s…
Skills: Data Infrastructure, Distributed Streaming Systems, Perception Pipelines, Geometric Computer Vision, 3D Spatial Data Handling
San Francisco, California, United States · On-site
$76/hr–$95/hr
Under direct supervision, the Radiation Therapist is responsible for various radiotherapy and hyperthermia treatment procedures at a technical level. Responsibilities include setting up patient for treatment, following t…
Skills: Radiotherapy, Hyperthermia Treatment, Patient Setup, Treatment Documentation, Megavoltage Machines
San Francisco, California, United States · On-site
About the Opportunity We are partnering with an innovative early-stage robotics company developing intelligent automation solutions for industrial manufacturing. The team is building advanced robotic systems that combine…
Skills: Python, Kinematics, Dynamics, Control Theory, State Estimation
San Francisco, California, United States · On-site
$79/hr–$98/hr
JOB SUMMARY This role is located at UCSF Health Stanyan Hospital. Works under the direction of the Adult Cardiac Catheterization & Electrophysiology Unit Director to function as a member of the procedural team by assisti…
Skills: Cardiac Catheterization, Electrophysiology, Radiological Imaging, Radiation Safety, Fluoroscopy
San Francisco, California, United States · Hybrid
About Onos Health Onos Health’s mission is simple but ambitious: ensure every healthcare dollar goes toward delivering the highest quality care. Today, 30% of total U.S. healthcare spending is wasted due to ineffective c…
Skills: Statistical Modeling, Causal Inference, Machine Learning, Python, SQL
San Francisco, California, United States · Hybrid
$210k–$275k/yr
Research Engineer You'll build the evaluation systems that tell us whether Firecrawl actually works. That sounds simple. It isn't. Our core promise, convert any URL into clean, structured, LLM-ready data reliably, is har…
Skills: Machine Learning, Research Engineering, Backend Engineering, Evaluation Systems Design, Metric Design
San Francisco, California, United States • On-site
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The role involves auditing data labeling outputs and providing actionable feedback to ensure high accuracy and consistency. It also includes supporting the onboarding, training, and day-to-day execution of Data Labeling Associates.
Candidates must have native-level French proficiency, a university degree, and 2-4 years of experience in data annotation or QA. Experience with AI/ML workflows and the ability to apply complex guidelines is required.
Welo Data is looking for experienced, detail-oriented professionals to join our team as Data Quality Analysts. This role sits at the center of execution and quality — bridging Data Labeling Associates (DLAs) and Team Leads to ensure work is not only completed, but done right.
You'll work closely with both people and AI systems — auditing outputs, supporting day-to-day execution, and helping teams apply guidelines correctly in fast-moving, real-world scenarios. The work combines data quality, light project coordination, and hands-on training, where your ability to guide others and think critically is just as important as your own output.
Important: This is a 100% onsite position — remote work is not available for this role. To be considered, candidates must be located in or able to commute to one of the following cities: New York City, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, or Burlingame. Please only apply if you meet this location requirement.
With 27+ years of experience, Welo Data is the human-centered infrastructure for globally effective AI. We fuel AI/ML and GenAI innovation through scalable, high-precision training data and multilingual expertise. Our network of 500,000+ expert evaluators and domain specialists across 105 countries ensures diverse and reliable AI solutions. Welo Data, a Welo Global brand, delivers a comprehensive spectrum of AI data services—including data annotation and labeling, LLM enhancement, data collection and generation, and relevance and intent assessment. With 14 secure facilities globally, 7 ISO certifications, and 24/7/365 support, we consistently deliver quality measures across scaled programs and complex, emerging projects. Leading technology innovators, including Google, Spotify, Amazon, Workday, Squarespace, and Dropbox, trust Welo Data. Our enterprise-grade solutions empower organizations to unlock the full potential of their data and AI initiatives while maintaining the highest standards of quality and ethical responsibility. By joining Welo Data, you will obtain: - Limitless FLEXIBILITY: Work on projects at the times that work best for you, with clear guidelines and transparent pay. - Limitless GROWTH: Access to optional learning resources and guidance to expand your skills with each project you complete. - Limitless SUPPORT: Connect with a global community and receive responsive assistance whenever you have questions. Welo Data is redefining how AI learns and how people thrive in shaping it. Follow us for enterprise AI insights, global job opportunities, and stories from our community. Limitless AI. Limitless You.
Based on 1029 listings with disclosed salaries, most science & research jobs in San Francisco, CA pay between $90k–$295k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 1,437 open science & research positions in San Francisco, CA listed on Clera. New openings are added daily as companies post roles.
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