Scale is a San Francisco-based data infrastructure company founded in 2016 that builds full-stack technologies for training, evaluating, and deploying machine learning systems at production scale. The platform addresses the core bottleneck in modern AI development: generating high-quality training data and managing the complete ML lifecycle from data generation through model evaluation, safety alignment, and deployment oversight. Scale has processed over 15 billion human decisions to train AI models and paid out $1 billion to contributors globally, operating a distributed workforce model that combines human judgment with systematic data infrastructure.

The company's technical focus centers on reinforcement learning from human feedback (RLHF), data generation pipelines, and evaluation frameworks for large language models and generative systems. Their platform provides tools for model evaluation and safety alignment - critical infrastructure for organizations deploying AI in high-stakes environments where reliability and failure mode analysis matter. Scale's customer base spans AI research labs developing frontier models, government agencies with mission-critical requirements, and Fortune 500 enterprises managing production ML systems. This positioning reflects the operational reality that advanced models require both cutting-edge training infrastructure and rigorous evaluation processes to meet deployment standards in regulated or safety-sensitive contexts.

With a team of 1,000 people, Scale has evolved from an annotation platform into a full-stack AI infrastructure provider. The company's architecture handles the operational complexity of coordinating human feedback at scale while maintaining the throughput and quality requirements of modern generative model training. Their emphasis on evaluation, safety, and oversight infrastructure addresses the gap between model capabilities and production readiness - the latency between research breakthroughs and deployable systems that enterprises and government agencies can trust for critical decisions.

Open roles at Scale

Explore 146 open positions at Scale and find your next opportunity.

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ML Research Engineer, ML Systems

Scale

San Francisco, California, United States (On-site)

$218.4k – $273k Yearly

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Senior Software Engineer, Full-Stack – Scale GP

Scale

San Francisco, California, United States (On-site)

$216.2k – $270.3k Yearly

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Machine Learning Research Scientist / Research Engineer, Post-Training

Scale

San Francisco, California, United States (On-site)

$252k – $315k Yearly

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AI Strategy Consultant, Frontier Tech

Scale

United States (Remote)

$60 – $80 Hourly

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Robotics Technician

Scale

Mexico City, Mexico City, Mexico (On-site)

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Software Engineer - New Grad

Scale

San Francisco, California, United States (On-site)

$124k – $155k Yearly

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AI Architect

Scale

San Francisco, California, United States (On-site)

$190k – $230k Yearly

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Software Engineer, Full Stack – Scale GP

Scale

San Francisco, California, United States (On-site)

$179.4k – $224.3k Yearly

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Software Engineer (Product), International Public Sector

Scale

Doha, Doha, Qatar (On-site)

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Strategic Finance Manager, International Public Sector

Scale

London, England, United Kingdom (On-site)

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Enterprise Account Executive

Scale

San Francisco, California, United States (On-site)

$147k – $183.8k Yearly

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Engagement Manager (Homeland Layered Defense), Public Sector

Scale

Colorado Springs, Colorado, United States (On-site)

$170.5k – $213.4k Yearly

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Applied AI Engineering Manager, Enterprise

Scale

San Francisco, California, United States (On-site)

$248.4k – $310.5k Yearly

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Technical Advisor Intern - GenAI (Winter/Spring 2026)

Scale

United States (Remote)

$50 – $50 Hourly

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Machine Learning Research Intern (Summer 2026)

Scale

San Francisco, California, United States (On-site)

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ML Systems Engineer, Robotics

Scale

San Francisco, California, United States (On-site)

$218.4k – $273k Yearly

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Business Sourcer, Contract

Scale

San Francisco, California, United States (Hybrid)

$55 – $65 Hourly

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Staff Infrastructure Software Engineer, Enterprise AI

Scale

New York, New York, United States (On-site)

$216.2k – $270.3k Yearly

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Executive Assistant, International Public Sector

Scale

London, England, United Kingdom (On-site)

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Strategic Projects Lead, Enterprise Evaluations

Scale

San Francisco, California, United States (On-site)

$198k – $247.5k Yearly