AI Agent Engineer Jobs in San Francisco

Moveworks is seeking a Senior Staff Software Engineer to join our Agentic AI Harness & Quality team. This role is for experienced software engineers looking to apply their skills at the forefront of AI agents. You will play a crucial part in advancing the capabilities and reliability of AI agents for enterprise use at scale. You'll contribute to the evolution of our AI Assistant platform, focusing on areas like agent orchestration, secure code execution, performance optimization, agent memory, LLM self-reflection, and knowledge graphs. You will leverage modern enterprise AI tools, including leading LLMs, and work within a team that prioritizes rapid development, scalable infrastructure, and pushing the boundaries of AI value for customers.

Salary not listed

OpenAI

API Agents is building the shared agent harness, tools, and infrastructure that turn OpenAI’s frontier models into systems capable of reliably completing real work. This role focuses on building the core systems behind the next generation of agents, designing reliable services and abstractions that help agents find context, use tools, retain knowledge, coordinate workflows, and take action safely. The position combines deep backend and infrastructure work with strong product judgment, offering opportunities to work across agent runtimes, orchestration, search, execution environments, identity, observability, and evaluations. Success in this role hinges on strong backend fundamentals, high agency, and the ability to translate fast-moving research into dependable production primitives.

$266k - $445k

Handshake is seeking a Member of Technical Staff to define how frontier coding agents are benchmarked and improved. This is a high-ownership role for researchers who build, partnering with top AI researchers and software engineers to develop new benchmarks, reward and verifier systems, agent-evaluation methodologies, and data-quality techniques focused on AI for Coding. You will tackle core questions in frontier AI progress, including what to measure, how to design effective evaluations, create high-signal feedback, and build actionable data systems. As an early member, you will have significant influence over the team's technical direction, operating culture, and the open-source software, benchmarks, and research products developed.

$200k - $350k

We are seeking an AI Agent & LLM Engineer to join our team and contribute to the AI systems powering Otter’s conversational knowledge engine and AI Chat. This role involves building and enhancing user-facing agent experiences, evaluation systems, and the underlying platform for reliable, large-scale operation. You will translate ambiguous product challenges into production-ready solutions, define quality metrics, and drive improvements across services, models, and user experience.

$155k - $185k

Figure is an AI robotics company developing autonomous general-purpose humanoid robots with the goal of shipping robots with human-level intelligence for home and commercial markets. You will be working within a small but impactful XR team, contributing to critical projects that involve debugging XR applications and running hardware experiments on robots. This role is ideal for someone who thrives on variety and can move quickly without a predefined playbook.

$200k - $400k

HappyRobot is seeking a Product Engineer Intern to develop internal applications and AI agents that enhance operational efficiency across product, engineering, deployments, and go-to-market teams. This role involves building software that is actively used by the HappyRobot team, with guidance from experienced engineers. You will collaborate directly with the CTO and Head of Product, and your work will directly impact various departments by creating tools, agents, and data pipelines to automate workflows and improve processes.

Salary not listed

This role focuses on partnering directly with companies to build and operate AI agents in production, transforming prototypes into reliable systems. It's a hands-on, technical position that involves working closely with customer engineers throughout the entire lifecycle, from pre-sales evaluations to post-deployment support. The core objective is to achieve technical success by co-designing agent architectures and ensuring customers can reliably operate these agents at scale using the LangChain suite. This position sits at the intersection of engineering, product, and go-to-market, influencing LangChain's adoption and providing valuable real-world insights back to the platform.

$185k - $315k

Sierra

Sierra is a leading platform for customer-facing AI agents, partnering with major brands to transform customer service and business growth. We are an in-person company based in San Francisco with a global presence. Our culture is built on values of Trust, Customer Obsession, Craftsmanship, Intensity, and balancing Family. The co-founders, Bret Taylor and Clay Bavor, bring extensive experience from leading tech companies like Salesforce, Facebook, and Google, with Bret currently serving as Board Chair of OpenAI.

$180k - $390k

NVIDIA is seeking a Senior Software Engineer to join the NeMo Helix Core team, responsible for building and shipping an open-source, plugin-based AI platform. This platform is designed for developing, evaluating, deploying, and operating AI systems at scale, with a particular focus on optimizing and orchestrating AI Agents across various compute backends. The role involves contributing to a sophisticated agent execution framework that enables parallel experimentation to find efficient agent architectures, making AI systems more sustainable and cost-effective by reducing token usage and improving throughput.

$184k - $357k

This role focuses on working directly with customers to build and deploy production AI agents, tackling complex problems in applied AI. You will help customers adopt innovative agentic engineering practices and ensure they ship reliable agents into production quickly. The feedback loop is fast, the impact is visible, and your work directly shapes how AI agents are built in the real world. This is a hands-on, highly technical role that partners closely with customer engineers across the full lifecycle, from pre-sales evaluations to post-deployment advisory work, focusing on achieving technical wins and co-designing agent architectures.

$160k - $185k

Databricks

As a Sr. Engineering Manager on the Agentic Service Platform team at Databricks, you will be responsible for building the foundational service frameworks and runtime infrastructure that power every microservice at Databricks. The team's goal is to make every service at Databricks fast, reliable, observable, and secure by default. This role involves owning the core agentic service platform, including multi-language service and RPC frameworks, core libraries, request context propagation, overload protection, and abstractions that extend full platform capabilities to any language. Your work will be high-leverage, with a single improvement benefiting thousands of production services and engineers across the company.

$229k - $314k

Athelas

Commure is building the AI Operating System for healthcare, transforming how care is delivered, documented, and financed. Our platform encompasses Ambient AI for documentation, intelligent Agents for workflows, and autonomous RCM, all integrated with numerous EHRs. We are seeking a Staff Backend Engineer to help build and operate the foundation for our next-generation ambient AI product suite. This role involves working across audio ingestion, media processing, inference orchestration, distributed workflows, storage, observability, and cloud infrastructure, focusing on making complex systems dependable and ensuring they create a fast, reliable, and trustworthy experience for clinicians.

$210k - $275k

Ironclad is building AI solutions on a massive scale, focusing on the critical domain of enterprise contracts. The Intelligence Platform team specifically owns Agent Assistant, Conversational Search, and Content Understanding, which are core AI capabilities enabling customers and AI agents to effectively interact with contract data. This role involves owning the architecture that integrates Large Language Models (LLMs) with retrieval systems to address complex questions about customer contracts. You will be instrumental in setting technical direction, partnering with product and science leaders, and driving improvements in search quality through rigorous evaluation.

$188k - $270k

OpenAI

OpenAI Presence is building a platform for reliable AI agents designed to handle high-volume business workflows in areas like customer support, sales, and insurance claims. The platform supports the entire agent development lifecycle, including evaluation, deployment, and improvement based on real interactions. It also integrates agents with company systems and supports voice and chat experiences, incorporating policies, guardrails, and human handoffs to ensure business control. We are seeking an engineer to help establish the foundational elements of Presence and develop systems that ensure AI agents are dependable in everyday business operations. This role involves setting the platform's technical direction while remaining hands-on with coding, taking architectural concepts from initial decisions through to scalable, reliable systems.

$230k - $385k

Anthropic

Our team studies how large teams of agents scale to solve complex problems that a single agent cannot, such as rewriting major codebases or formalizing mathematics. We investigate the impact of increasing agent numbers, compute budget, and task length on performance, cost, and coordination. This role bridges research and engineering, involving designing and running large experiments, building the necessary systems, and analyzing surprising results. We aim to move quickly from vague questions to running experiments, developing the platform and evaluations Anthropic uses to measure and manage large agent teams.

$500k - $850k

HeyGen is seeking an Applied AI Engineer to join the Video Agent team. This role focuses on enhancing the capabilities of an AI agent that transforms prompts, documents, or assets into finished videos. You will be responsible for improving the agent's ability to understand user requests, redesigning tools it utilizes, building evaluation frameworks, and shipping new features across the full stack. This position offers a unique opportunity to work directly with in-house trained models and researchers, owning features from conception to launch and making critical decisions about where to apply AI versus deterministic code.

$180k - $240k

Brex

Brex is seeking an AI Engineer to join their Finance Agents team and build the Agent Workbench. This role involves creating a conversational surface where finance professionals can interact with AI agents through various documents and tools to understand financial activity, investigate findings, and steer agent actions. The initial focus will be on evolving the workbench into an extensible platform supporting multiple agent experiences, owning the extension model, integration protocols, and application architecture. You will collaborate with cross-functional teams to build across application layers, establish an agentic design system, and iterate with customers on features like policy editing, reporting, and data exploration.

$216k - $240k

Moveworks is seeking an Agentic AI Harness Architect to define the technical vision for our agentic AI harness. This role involves planning, selecting tools, managing context, and implementing memory, critique, reflection, adaptation, and recovery mechanisms for AI agents. You will invent and prototype algorithms to enable agents to complete complex tasks with minimal supervision and high reliability. The position requires designing model-agnostic abstractions to integrate foundation models, specialized agents, enterprise tools, and workflows, while developing approaches for agent memory and learning that prioritize enterprise security and privacy. You will also create rigorous benchmarks and evaluation methods for agent performance and explore advanced methods like iterative planning, self-critique, and multi-agent coordination. The role includes building prototypes, identifying promising ideas, and collaborating with platform and product teams to bring them to production, while remaining hands-on with code and experiments.

$201k - $352k

Harvey is transforming legal and professional services by integrating advanced agentic AI with an enterprise-grade platform. This role is a founding position on the Security Engineering team, focused on building the foundational security for AI agents. You will lead the development of a platform that enables agents to perform security work, including vulnerability discovery and validation through authorized penetration testing, while ensuring data and system protection. The work involves shaping how agents are sandboxed across product and internal platforms, building execution environments, orchestration, and controls, and enabling the secure internal use of open-source models.

$231k - $346k

Salesforce is seeking experienced Technical Builders to serve as Forward Deployed Engineers (FDEs). In this role, you will design, build, and deploy agentic AI solutions directly within enterprise customer environments. You will collaborate closely with a Deployment Strategist to co-build solutions that go live in production from day one, working on real code in real environments to achieve measurable business impact. This position involves configuration, customization, and full-stack deployment of critical solutions, leveraging cutting-edge AI tools and platforms. You will be at the forefront of AI innovation, working on capabilities that shape the future of agentic AI and feeding your insights directly back to product teams.

$89k - $288k

Retool

Retool is building the platform that makes custom software, especially AI-powered applications, safe to ship. As AI empowers more people to build software, the risk of shipping ungoverned applications grows. Retool provides a platform that connects to business data, enforces enterprise policies, and allows teams to create and reuse components safely. This role focuses on building the agent platform behind Retool's AI products, owning model-driven behavior in production, and ensuring the reliability, affordability, and scalability of agentic products used by engineering teams.

$164k - $306k

Limrun is seeking an engineer to build and scale its platform, which runs development tools and applications as cloud services that AI agents can use. The role involves deciding on product direction, owning projects from design to maintenance, and participating in an on-call rotation to investigate and resolve production incidents. This is an opportunity to work directly with the founder, shape the engineering team's practices, and explore the application of AI in solving infrastructure challenges.

Salary not listed

Salesforce is seeking a highly accomplished technologist to join their Forward Deployed Engineering Team as an Expert Agent Builder. This role is at the pinnacle of AI technical expertise, focusing on architecting, designing, and building complex agentic systems to solve challenging customer problems. The successful candidate will translate ambiguous customer needs into concrete, executable AI solutions, driving transformative AI solutions by tackling the technical frontier of intelligent automation. This involves building first-of-their-kind, best-in-class experiences for major brands, including headless agent automations, dynamic AI-driven custom user interfaces, and complex multi-agent solutions. The role demands unparalleled software development mastery, deep software architecture skills, and a relentless focus on implementing engineering best practices to deliver maximum tangible value in dynamic, real-world enterprise environments.

$158k - $288k

Salesforce is seeking a Senior AI Engineer to join the Agentforce Operations team, a high-velocity 'startup-within-Salesforce' focused on revolutionizing the public sector supply chain with an AI-powered platform. This role offers the unique opportunity to build a '0 to 1' product in a rapidly growing vertical, working alongside a founding team with deep startup roots but backed by the global scale of Salesforce. You will be instrumental in shaping both the product and the engineering team, partnering with product leaders and sector experts to deliver trusted AI systems for mission-critical public-sector workflows. The role involves building AI features tailored to public-sector customers, designing systems with security, compliance, reliability, and operational constraints at their core, and operating with wide autonomy to raise the bar for technical quality and mentorship.

$149k - $224k