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Bobby Ford Named Chair of Oak's Executive Advisory Board

BREAKING: Eclipse’s Quiet Rise to $12.5B+ AUM

Snorkel AI Scores $350M

Snorkel AI Raises $350M to Scale the Data Factory for Frontier AI

Sr. Simulation Engineer, Physical AI

Greylock Partners is an early-stage investor focusing on innovative startups, and they are seeking a Senior Simulation Engineer in Physical AI. This role involves building a platform to enhance simulation capabilities for autonomous physical systems, working closely with engineering teams to create robust workflows and improve simulation fidelity.

Founding Engineer - AI Agent Security

Greylock Partners is an early-stage investor supporting a seed-stage portfolio company building an adaptive security layer for autonomous AI agents. The Founding Engineer will build and own production software for agent security, including runtime systems, model and inference integrations, attack-generation harnesses, evaluation loops, and reliable production workflows.

Founding Engineer — AI Agent Security

Founding Applied Research Scientist, AI & Simulation

Greylock is an early-stage investor supporting companies across its network. The Founding Applied Research Scientist will work with the CTO, founders, and engineers to develop and test machine learning methods, investigate their limitations, and translate effective approaches into dependable product capabilities and production systems.

AI Researcher, Agent Systems

Greylock Partners is an early-stage investor connecting candidates with its portfolio companies, including an AI company focused on deploying trustworthy and scalable agents in real organizational workflows. The AI Researcher, Agent Systems will develop agent environments, evaluation methods, multimodal workflow representations, and experimental infrastructure to improve AI-agent deployment and coordination.

Research Scientist (Frontier AI Infra)

Greylock Partners is a seed-stage frontier AI infrastructure company focused on building next-generation software and evaluation systems for frontier AI. The role involves tackling complex problems at the intersection of AI research and software engineering, with responsibilities including designing evaluation frameworks and developing benchmarks for AI models.

Applied Research Scientist (Frontier AI)

Greylock Partners is an early-stage investor supporting a portfolio company building frontier AI infrastructure for software, data, and evaluation systems. The Applied Research Scientist will design novel evaluation frameworks and benchmarks, conduct research on model improvement, build research tooling, and translate real-world workflows into practical AI systems.

Founding ML Engineer – Search & Agents

Greylock Partners is an early-stage investor in remarkable companies, and they are seeking a Founding ML Engineer to own the search and retrieval layer for a seed-stage company building vertical AI for physical science R&D. This role involves hands-on ownership of search quality and evaluation, defining retrieval, ranking, and evaluation processes, and shipping systems into production based on user feedback.

Head of AI (Agentic AI)

The company is a Greylock-backed, early-stage enterprise technology company building an adaptive, AI-native platform for managing and securing enterprise endpoints. The Head of AI will define the AI strategy and technical roadmap, contribute hands-on to architecture, model development, evaluation, experimentation, and production deployment, and lead a team of machine learning engineers and applied research scientists.

Venture Capital & Startup Funding Roundup, September 22, 2026: General Catalyst, Goldman Sachs, Greylock, M13, Y Combinator & More

Sr. Applied Research Engineer (Agentic AI)

Greylock Partners is an early-stage investor in numerous successful companies and is currently looking to expand their Machine Learning team. The role requires a candidate with extensive experience in Generative AI and a strong passion for advancing state-of-the-art AI technologies.

Chief Research Scientist

Greylock Partners is an early-stage AI infrastructure company seeking a Chief Research Scientist to develop next-generation autonomous systems for enterprise operations. The role involves building an AI-native platform that enhances operational efficiency and resilience in complex enterprise environments.