Employer profile
Sim
5 open roles indexed with location, benefit, and apply-link signals where available.
Open roles
Showing the most recent indexed roles for this employer.
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Founding GTM Engineer
San Francisco | OnSite
onsite Salary not disclosedFounding GTM Engineer San Francisco | OnSite ABOUT SIM Sim is building the leading platform for AI agents-enabling developers and enterprises to visually create, launch, and manage high-performing agents that automate the world's workflows. Our mission is simple: agents will run the world, and Sim is the primary means by which that happens. We're backed by world-class investors including Standard Capital, Paul Graham, Perplexity, SV Angel, and Y Combinator, and we've been open source from day one. We're a small, fast-moving team based in San Francisco, building together in person every day. 70,000+ developers use Sim; your work ships fast and impacts real users at scale. We believe in ownership, excellence, and ambitious builders shaping the future from the ground up. ABOUT THE ROLE This is a foundational role: Sim is hiring our first GTM Engineer to build the company's go-to-market and RevOps infrastructure from the ground up. You won't just optimize existing workflows-you'll architect them. You'll partner directly with leadership to define, implement, and scale our GTM systems, automations, and data flows. If you want to operate as a technical founder for our GTM function and ship quickly with massive ownership, this role is for you. You'll work full-time, in-person, out of our San Francisco office. WHAT YOU'LL DO: - Build from zero: Create Sim's GTM infrastructure from scratch-integrating best-in-class tools like Salesforce, Clay, Gong, enrichment APIs, and more into a seamless automated engine - Invent internal automation: Design and build AI agents and custom workflows to automate account
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Software Engineer, Platform
San Francisco | OnSite
onsite Salary not disclosedSoftware Engineer, Platform San Francisco | OnSite ABOUT SIM We're a small team, YC X25, and backed by a $7M Series A led by Standard Capital with participation from Paul Graham, Perplexity, SV Angel, and Y Combinator. We're based in San Francisco and build in person every day. Our mission is simple: agents will run the world, and Sim is the primary means by which that happens. ABOUT THE ROLE You'll lead the Sim platform: the visual, end-to-end agent builder that tens of thousands of developers use every day. You'll own the front-end architecture, the real-time canvas, and the systems that turn visual flows into reliable, production agents. Sim has been called the "Figma for AI agents" - an intuitive drag-and-drop canvas where developers connect LLMs, tools, APIs, and logic blocks into complex agentic workflows. Your job is to make this experience fast, delightful, and powerful enough that developers never want to go back to writing agents in code. This is a foundational role. You'll define the front-end architecture, set performance standards, and shape the developer ergonomics of a product used by 70,000+ builders. On a small team, you own the entire surface area that developers interact with. WHAT YOU'LL DO - Own the Sim visual canvas - the real-time, drag-and-drop workflow editor at the heart of the product - Architect and build the front-end systems that render, connect, and manage complex agent workflows - Design the interaction model for how developers create, test, debug, and deploy agents visually -
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Design Engineer
San Francisco | OnSite
onsite Salary not disclosedDesign Engineer San Francisco | OnSite ABOUT THE ROLE You'll own the design and development of Sim's visual, agent-building platform-the canvas where developers build, connect, and launch AI agents. From architecture to polished interactions, you'll define how thousands of developers visually create with Sim. Your work blends UI/UX design with engineering, shaping the interface, experience, and real-time systems at the heart of our product. Sim has been called "Figma for AI agents," and you'll push this further-making our canvas more powerful, delightful, and performant as workflows grow. You'll partner with engineering, design, and product to deliver a seamless agent-building journey from initial creation through to production. This is a foundational role. You'll set standards across visual design, interaction patterns, and UI responsiveness. On our lean team, you'll influence everything the user interacts with and rapidly ship features that impact thousands. What You'll Do - Own the design and development of Sim's visual canvas-the real-time, drag-and-drop editor central to our platform - Architect and implement intuitive UI systems for complex agentic workflows - Shape how developers interact: design, test, debug, and deploy agents seamlessly within the product - Ensure the experience remains fast, beautiful, and robust as workflows grow in size and sophistication - Bridge visuals and execution: what users see is what runs - Set standards for front-end code, component architecture, design systems, and user ergonomics - Collaborate across the stack in our Next.js monorepo; ship to production daily - Define and refine UX/UI patterns, with attention to developer delight
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Software Engineer, Agents
San Francisco | OnSite
onsite Salary not disclosedSoftware Engineer, Agents San Francisco | OnSite ABOUT THE ROLE You'll own end-to-end development of our core agentic workflow engine and Copilot - the AI assistant that helps developers build and debug workflows using natural language, turning high-level intent into executable, reliable agents. This spans our backend (Next.js), orchestration layer, and all integrations with LLMs and external APIs. Copilot is currently the best-in-class tool for building workflows with natural language. Your job is to keep it there and push it further - making it faster, more reliable, and capable of handling increasingly complex agentic architectures. This is a foundational role. You'll set architecture decisions, reliability standards, and coding patterns that define how the core product works. On a team of 5, your work ships to tens of thousands of developers on fast release cycles. WHAT YOU'LL DO - Own the agentic workflow engine: the runtime that executes multi-step, tool-using agent workflows in production - Build and evolve Copilot - our natural language interface for creating, editing, and debugging workflows - Design and maintain integrations with LLM providers (OpenAI, Anthropic, Google, local models via Ollama) and external APIs - Architect the orchestration layer that turns visual flows into reliable, observable agent executions - Set technical standards for the codebase - reliability, testing, code quality, and architecture patterns - Work across the stack in our Next.js monorepo, shipping to production daily - Debug hard problems at the intersection of LLMs, distributed systems, and developer tooling WHAT WE'RE LOOKING FOR - Strong generalist
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Software Engineer, Frontend
San Francisco | OnSite
onsite Salary not disclosedSoftware Engineer, Frontend San Francisco | OnSite ABOUT SIM Sim is building the leading platform for AI agents-enabling developers and enterprises to visually create, launch, and manage high-performing agents that automate the world's workflows. Our mission is simple: agents will run the world, and Sim is the primary means by which that happens. We're backed by world-class investors including Standard Capital, Paul Graham, Perplexity, SV Angel, and Y Combinator, and we've been open source from day one. We're a small, fast-moving team based in San Francisco, building together in person every day. 70,000+ developers use Sim; your work ships fast and impacts real users at scale. We believe in ownership, excellence, and ambitious builders shaping the future from the ground up. ABOUT THE ROLE As a Software Engineer, Frontend at Sim, you'll own the development of our agent-building canvas and frontend platform. You'll architect intuitive user experiences, build robust and high-performance UI components, and help define how thousands of developers create with Sim. Working with engineering, product, and design, you'll deliver features from concept to production, directly shaping our product's design, performance, and developer experience. WHAT YOU'LL DO - Architect and develop key frontend systems, focusing on visual, interactive experiences that empower users to build and manage AI agents - Lead the implementation of new features, UI components, and real-time interactions in a Next.js monorepo - Ensure the frontend experience is performant, polished, and delightful at scale - Set standards for front-end code, UI architecture, and design systems - Collaborate