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60 Sims Jobs Hiring in California

S. Government. The role involves leading the development of the Sim platform's front-end architecture and ensuring an intuitive user experience for building complex workflows. Responsibilities : • ...

eSIM feature testing on mobile phone s on various US carrier network Knowledge of Remote SIM Provisioning Knowledge of SM-DP, SM-SR, eUICC, SM-DP+, LPA Experience of finding bugs and log analysis to ...

S. forces overwhelming, adaptable, and autonomous power across every domain. Fury enables human ... sim-to-real transfer, dynamic AI memory, and multi-agent coordination. Your work will be ...

Senior AI Researcher

Sunnyvale, CA · On-site +1

$200K - $400K/yr

S. forces overwhelming, adaptable, and autonomous power across every domain. Fury enables human ... sim-to-real transfer, dynamic AI memory, and multi-agent coordination. Your work will be ...

AI Researcher

Sunnyvale, CA · On-site

$160K - $400K/yr

S. forces overwhelming, adaptable, and autonomous power across every domain. Fury enables human ... sim-to-real transfer, dynamic AI memory, and multi-agent coordination. Your work will be ...

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Software Engineer, Platform

Sim

San Francisco, CA • On-site

Full-time

Re-posted 2 days ago


Job description

Job Summary:
Sim is an open-source platform to build, deploy, and orchestrate AI agents, used by over 70,000 developers including the U.S. Government. The role involves leading the development of the Sim platform's front-end architecture and ensuring an intuitive user experience for building complex workflows.
Responsibilities:
• 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
• Build the bridge between visual flows and the underlying execution engine — ensuring what you see is what runs
• Drive performance and responsiveness across the editor, even as workflows grow in complexity
• Shape developer ergonomics and UX patterns across the platform — block configuration, variable wiring, real-time feedback, deployment flows
• Work across the stack in our Next.js monorepo when needed, shipping to production daily
• Set front-end standards for the codebase — component architecture, state management, testing patterns
Qualifications:
Required:
• Design-minded full-stack engineer with deep React and TypeScript experience
• Strong sense of product and UX — you care deeply about how things feel, not just how they work
• Experience building complex, interactive UIs — canvas editors, real-time collaborative tools, visual programming environments, or similarly demanding front-end systems
• Track record of shipping polished developer tools or creative tools to production
• Deep understanding of front-end performance — you know how to keep complex interfaces fast and responsive
• High agency and ownership — on a team this small, you define the roadmap as much as you execute it
• Comfort working across the stack in a Next.js monorepo; backend work is part of the job
Preferred:
• Experience with real-time systems (WebSockets, CRDTs, or similar) is a plus
• Experience with AWS infrastructure is a plus
• Contributions to open-source projects are a plus
Company:
Sim is a software development company that provides an artificial intelligence platform to automate workflow and sync data. Founded in 2025, the company is headquartered in San Francisco, USA, with a team of 2-10 employees. The company is currently Early Stage.