Senior Software Engineer, Frontend (Agentic AI) Sift StackSenior Software Engineer, Frontend (Agentic AI)San Francisco, California$180,000–$230,000 / yearThe surface area is wide: one day you might be polishing the micro-interactions that make the chat experience feel great, the next you might be building a bespoke caching layer for the chat messages off the main JS thread. Sift Agents is our answer: AI agents that work alongside hardware engineers, investigating anomalies, reviewing test and flight data, and answering in minutes questions that used to take a day of scripting.
Software Engineer, Kernel Performance & AI Tooling OpenAI LLCSoftware Engineer, Kernel Performance & AI ToolingSan Francisco, CAFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. This person will work at the intersection of kernel optimization, developer tooling, observability, and research infrastructure, helping us improve both how production kernels are built and optimized, and how future hardware-software systems are designed and evaluated.
AI Support Engineer Cognition LabsAI Support EngineerSan Francisco, CAAmong our founding team, we have world-class competitive programmers, former founders, and leaders from companies at the cutting edge of AI including Scale AI, Palantir, Cursor, Waymo, Tesla, Lunchclub, Modal, Google DeepMind, and Nuro. Investigate, reproduce, and diagnose complex customer issues across diverse development environments, including cloud infrastructure, CI/CD systems, APIs, containers, version control, IDEs, and enterprise deployment setups.
AI Engineer - SF Aegis AIAI Engineer - SFSan Francisco, CaliforniaDespite 30+ years of combined AI experience on the founding team, we know today’s landscape changes too fast to rest on credentials. Now, we’re striking out on our own to tackle an even bigger challenge: stopping the new wave of adversarial AI attacks already hitting organizations today.
AI Kernel Engineer quadric, IncAI Kernel EngineerBurlingame, CA$110,000–$270,000 / yearThe AI Kernel Engineer at Quadric will [1] develop a highly efficient Quadric kernel library for a variety of AI/LLM models; [2] analyze the performance and optimize the kernel for different hardware configurations; This senior technical role demands deep knowledge of hardware architecture, compiler toolchain and optimization techniques. Quadric's co-optimized software and hardware is targeted to run neural network (NN) inference workloads in a wide variety of edge and endpoint devices, ranging from battery operated smart-sensor systems to high-performance automotive or autonomous vehicle systems.
AI Inference Engineer quadric, IncAI Inference EngineerBurlingame, CA$110,000–$270,000 / yearQuadric's co-optimized software and hardware is targeted to run neural network (NN) inference workloads in a wide variety of edge and endpoint devices, ranging from battery operated smart-sensor systems to high-performance automotive or autonomous vehicle systems. This California Bay Area based role follows a hybrid schedule, with at least two in-office days per week at our Burlingame office, the ability to commute regularly, and occasional additional onsite days as needed based on team and business priorities.
Senior AI Platform Engineer Contract NextdataSenior AI Platform Engineer ContractSan Francisco, CaliforniaNextdata is looking for an experienced AI Platform Engineer for an initial three-month project focused on building and validating an AI-enabled data platform capability. You will quickly ramp up on an existing project and build backend services, agent tools, APIs, and data integrations.
Staff AI Agent Engineer LiberateStaff AI Agent EngineerSan Francisco, CaliforniaYou operate with strong judgment, raise the engineering bar in the work, and reduce dependency on leadership by owning outcomes directly. Our long-term vision is to build reasoning agents capable of handling the entire spectrum of insurance carrier and broker operations.
Senior Systems Engineer - AI Code Metrics Daemon Atlassian CorpSenior Systems Engineer - AI Code Metrics DaemonSan Francisco, CA$176,400–$230,300 / yearBonus: Git internals, developer tools / dev infra, endpoint or monitoring agents (EDR, sync clients, telemetry agents), SQLite or embedded storage, or cross-platform native development. We're building the observability layer for AI-assisted software development, measuring how much of an engineering org's code is actually written by AI coding agents, and attributing every line back to the work that produced it.
AI Research Resident PolymathAI Research ResidentSan Francisco, CaliforniaThis will require 1) identifying failure modes in frontier models, 2) developing rigorous benchmarks that evaluate how well frontier agents perform on complex, realistic tasks requiring long-horizon reasoning and tool use in dynamic environments, and 3) training autonomous agents that can reason, plan, and act over extended time horizons. We’re looking for talented researchers currently enrolled in MS / PhD programs to collaborate on a research project focused around frontier benchmarks and environments for long-horizon AI agents .
AI Context Operations Lead Mercury Technologies IncAI Context Operations LeadSan Francisco, CA$163,000–$203,800 / yearBehind every product Mercury ships is a fast-growing company: dozens of teams across engineering, product, design, data, and business functions, and hundreds of projects that require alignment across compliance, legal, partnerships, customer support, finance, and leadership. Working closely with Engineering, who own the underlying infrastructure, you''ll design the knowledge layer above it: the taxonomies, schemas, validation workflows, and automations that make company knowledge reliable for both people and AI systems.
FullStack Engineer, AI Observability & Evals Platform (LangSmith) LangChainFullStack Engineer, AI Observability & Evals Platform (LangSmith)San Francisco, California$145,000–$180,000 / yearToday, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together.
Applied AI Engineer SafetyKitApplied AI EngineerSan Francisco, CaliforniaYou’ll manage our model alpha program with OpenAI, and work directly with their research and product teams to discover unknown capabilities in new models. Scope and implement entirely novel applications of AI agents (adversarial webcrawling, weapons identification, red-teaming, ingredient extraction, etc.).
AI Engineer, Product Brex Inc.AI Engineer, ProductSan Francisco, CARemote$171,000–$240,000 / yearYou'll partner closely with the engineers driving each - translating ambiguous product requirements into shipped features, pushing back when the design isn't right, and treating the seam between agent reasoning and human workflow as a first-class product surface. You'll design and ship the workflows, surfaces, and data flows that turn the agent's output into something a reviewer can trust and act on - from the reviewer experience itself, to the contracts with Brex's financial system of record, to the feedback loops that make the agent better over time.
AI Engineer Instabase IncAI EngineerSan Francisco, CAYou will not just be "vibe coding" prompts; you will build the actual state machine, execution sandbox, tool-calling middleware, and security containment layers that allow AI agents to safely execute code, search the web, manipulate files, and query databases in real-time. Technical Strategy & Mentorship: Write comprehensive high-level design documents, align cross-functional engineering teams on the technical roadmap, and mentor senior and mid-level software engineers across the organization.
AI Engineer, Enablement LangChainAI Engineer, EnablementSan Francisco, CaliforniaToday, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. 2+ years in a technical, customer-facing role (Enablement, Customer Success Engineering, Solutions Engineering, or similar), including experience designing and delivering live workshops.
Assistant General Counsel, Privacy, Cybersecurity, and AI Chime USA, Inc.Assistant General Counsel, Privacy, Cybersecurity, and AISan Francisco, CARemoteOur in-office work policy is designed to keep you connected - with four days a week in the office and Fridays from home for those near one of our offices, plus team and company-wide events depending on location. The Director will work cross-functionally with marketing, security, engineering, product, data, and member support teams to manage Chime's privacy program in compliance with applicable privacy and data security laws and regulations.
Software Engineer, Frontend (Agentic AI) Sift (US)Software Engineer, Frontend (Agentic AI)San Francisco, CA$160,000–$200,000 / yearIn This Role, Youll: Talk directly to customers and partner with product to turn real review workflows into agent capabilities: generating dashboards, writing analysis scripts, and surfacing insights buried in their telemetry. The surface area is wide: one day you might be polishing the micro-interactions that make the chat experience feel great, the next you might be building a bespoke caching layer for the chat messages off the main JS thread.
Senior Software Engineer, Frontend (Agentic AI) Sift (US)Senior Software Engineer, Frontend (Agentic AI)San Francisco, CA$180,000–$230,000 / yearIn This Role, Youll: Talk directly to customers and partner with product to turn real review workflows into agent capabilities: generating dashboards, writing analysis scripts, and surfacing insights buried in their telemetry. The surface area is wide: one day you might be polishing the micro-interactions that make the chat experience feel great, the next you might be building a bespoke caching layer for the chat messages off the main JS thread.
Senior Fullstack Engineer, AI Observability & Evals Platform LangChainSenior Fullstack Engineer, AI Observability & Evals PlatformSan Francisco, California$175,000–$240,000 / yearToday, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together.