San Francisco, California, United States · On-site
Overview Welo Data is looking for sharp, curious, and detail-oriented individuals to join our team as Data Quality Associate. This is not a traditional annotation role. You’ll be working directly with cutting-edge AI sys…
Skills: Data Labeling, AI Model Evaluation, Portuguese Proficiency, English Proficiency, Professional Writing
San Francisco, California, United States · Hybrid
$70k–$80k/yr
Industrial Designer San Francisco, CA - Hybrid At IDEO, we use design to create new products, services, experiences; tangible strategies; and creative capabilities. IDEO San Francisco is in search of a new Industrial Des…
Skills: Industrial Design, Rapid Prototyping, Visual Storytelling, SolidWorks, Rhino
San Francisco, California, United States · Hybrid
$110k–$130k/yr
Lead Mechanical Engineer San Francisco, CA At IDEO, we use design to create new products, services, experiences, tangible strategies, and creative capabilities. IDEO is in search of a Lead Mechanical Engineer to guide an…
Skills: Mechanical Engineering, Product Development, 3D CAD, SolidWorks, Rapid Prototyping
San Francisco, California, United States · Hybrid
About HUD HUD is building infrastructure to create RL training data and evals for frontier AI agents, as well as a marketplace to sell these to frontier labs through the HUD marketplace. Our platform is used by frontier …
Skills: Outbound Pipeline Management, CRM Automation, Lead Scoring, Technical Sales, Vibe Coding
San Francisco, California, United States · Hybrid
$200k–$260k/yr
Company Tread is the AI-native operating system for the $660B construction materials logistics market: the aggregate, asphalt, and concrete behind every road, bridge, and building in the country. Our customers run the ga…
Skills: AI-Native Engineering, Engineering Leadership, SDLC Optimization, Payment Systems, Financial Systems
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 · On-site
GTM Engineer Location: San Francisco, CA Type: Full-time, on-site COMPANY OVERVIEW AgentMail is building the communication and identity layer for AI agents. Agents are starting to do real work, but they still lack basic …
Skills: Python, TypeScript, SQL, API Integration, Data Pipeline Construction
San Francisco, California, United States · Hybrid
$210k–$300k/yr
The internet runs the world. Organizations across the world—from offices and schools to data centers and manufacturing facilities—spend billions annually on computer networking to stay productive. However, these networks…
Skills: Data Center Networking, Product Management, Hardware Tradeoffs, Firmware Development, API Design
San Francisco, California, United States · On-site
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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…
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San Francisco, California, United States · On-site
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Skills: Solutions Architecture, Cloud Computing, GenAI, Software Development, Infrastructure Design
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 · Hybrid
$230k–$265k/yr
Unify is building the first AI-native outbound platform where agents and sellers work side by side. We help revenue teams identify buyers already in market, enrich accounts with data from 40+ sources, and execute persona…
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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 · Hybrid
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About HappyRobot HappyRobot is the infrastructure for enterprises to build and orchestrate AI workforces. Our AI workers don't just communicate - they make decisions, take action, and run operations autonomously across v…
Skills: Technical Operations, Product Operations, API Knowledge, Data Structures, Cross-Functional Coordination
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 · Hybrid
$266k–$395k/yr
Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make com…
Skills: Systems-Level Programming, Storage Protocol Design, Distributed Systems, Object Storage, Block Storage
San Francisco, California, United States · Remote OK
AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, a…
Skills: Agile Facilitation, Scrum, DevSecOps, SRE, Data Science Workflows
San Francisco, California, United States · On-site
$209k–$253k/yr
Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack — from elect…
Skills: Linux Kernel Internals, Virtualization, KVM, QEMU, Go
San Francisco, California, United States · On-site
$293k–$385k/yr
About the Team OpenAI’s Cyber team works to make frontier AI a decisive advantage for defenders. The Cyber Blue Team is an operator-led group focused on turning real defensive problems into better models, useful products…
Skills: Product Management, Cybersecurity, AI Product Development, Detection Engineering, Threat Hunting
San Francisco, California, United States · On-site
$170k–$205k/yr
Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack — from elect…
Skills: Distributed Systems, Go, Rust, Java, C++
San Francisco, California, United States • On-site
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Evaluate AI model outputs and provide structured feedback to improve system behavior and quality standards. Identify patterns, edge cases, and failure modes while contributing to the refinement of evaluation frameworks.
Requires native-level Portuguese proficiency, a university degree, and 1-2 years of professional writing experience. Candidates must have 2+ years of experience in GenAI safety considerations and be authorized to work in the U.S. without sponsorship.
Welo Data is looking for sharp, curious, and detail-oriented individuals to join our team as Data Quality Associate.
This is not a traditional annotation role.
You’ll be working directly with cutting-edge AI systems — evaluating outputs, identifying gaps, and helping improve how these systems behave in real-world scenarios. The work sits at the intersection of data quality, model evaluation, and human judgment, where your ability to think critically matters just as much as following guidelines.
We’re looking for people who are naturally curious about AI, comfortable forming opinions, and confident in contributing to conversations with teammates, leads, and stakeholders.
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 2822 listings with disclosed salaries, most engineering jobs in San Francisco, CA pay between $130k–$284k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 3,686 open engineering positions in San Francisco, CA listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include OpenAI, Anthropic, San Francisco Department of Public Health, Pinterest, Amazon, among others. Browse the listings above to see every active employer.
Yes — 1799 of the 3686 open engineering positions offer remote or hybrid work (369 remote, 1430 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
