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Perplexity builds answer engines combining search, retrieval, and frontier LLMs.LLM Engineer (San Francisco): retrieval quality, citation accuracy, and latency at query scale.What you will doDeliver production-grade search-augmented LLMs with measurable quality, latency, and cost targets.Build…

Perks · Frontier search product, equity.

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OpenAI ships frontier models and ChatGPT product surfaces from San Francisco.LLM Evaluation Engineer: golden sets, automated graders, red-team coverage, and release gates for model and product quality.MissionsBuild regression suites that catch capability and safety regressions before launch.Partner…

Perks · Equity, hybrid SF, learning budget.

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Weights & Biases (W&B) provides experiment tracking and MLOps for ML teams worldwide.Senior ML Platform Engineer: model registry integrations, eval products, and scalable metadata services.What you will doDeliver production-grade MLOps product engineering with measurable quality, latency,…

Perks · Remote-friendly, equity.

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Harvey builds LLM copilots for law firms with strict confidentiality and citation requirements.LLM Engineer (San Francisco): legal RAG, prompt systems, and human-in-the-loop review tooling.What you will doDeliver production-grade legal-domain LLM products with measurable quality, latency, and cost…

Perks · Top-tier comp, equity.

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Figma is adding AI across design, FigJam, and developer handoff. AI Product Engineers ship features used by millions of designers daily.Senior AI Product Engineer (SF): LLM-powered layout suggestions, design-system aware copilots, and eval frameworks tied to user success metrics.Hybrid SF — close…

Perks · Equity, wellness, hybrid SF.

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Scale AI delivers data and GenAI platforms for enterprises and government.Forward Deployed AI Engineer: embed with customers to ship RAG, agents, and evals under real constraints.MissionsScope, build, and hand off GenAI solutions with clear success metrics.Translate customer workflows into reliable…

Perks · Travel stipend, equity, hybrid SF.

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DoorDash operates one of the largest on-demand logistics marketplaces in North America, connecting consumers, merchants, and Dashers with real-time dispatch and pricing.Senior AI Developer (SF hybrid): improve ETA prediction, merchant ranking, support copilots, and fraud signals using classical ML…

Perks · Equity, comprehensive medical, hybrid SF.

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Stripe processes payments globally and is expanding LLM-assisted surfaces carefully.AI Security Engineer: threat model LLM apps—prompt injection, data exfil, supply-chain, and abuse.MissionsDesign defenses and monitoring for LLM features in regulated payment flows.Run red teams and convert findings…

Perks · Equity, hybrid Bay Area, security training.

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OpenAI builds frontier models and developer APIs used worldwide. Infrastructure ML teams keep training and inference reliable at scale.ML Engineer — infrastructure (San Francisco): scheduling, monitoring, and performance for large GPU clusters and inference fleets.What you will doShip production…

Perks · Frontier lab environment, comprehensive benefits.

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Coinbase operates one of the largest regulated crypto platforms in the US. Trust & Safety ML teams detect fraud, account takeover, and blockchain abuse in real time.Senior ML Engineer (SF hybrid): graph features, sequence models, and LLM-assisted analyst copilots with strict false-positive…

Perks · Equity, crypto perks, comprehensive medical.

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Notion embeds AI across docs, wikis, and workflows for teams globally. SF product engineering ships fast with strong craft and safety review.Senior AI Product Engineer: in-editor assistants, tool routing, and enterprise privacy controls.What you will doShip production product-embedded AI with clear…

Perks · Equity, wellness, hybrid SF.

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Airbnb connects hosts and guests worldwide. Search, pricing, and trust models blend classical ML with modern embeddings and GenAI assists.Senior Applied Scientist (SF): ranking, retrieval, and experimentation for discovery with integrity guardrails.What you will doShip production search and…

Perks · Travel credit, equity, hybrid.

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