Software Engineer, Full Stack

About Runloop Runloop.ai is building the foundational infrastructure for the next generation of AI development. We provide AI engineers and data scientists with lightning-fast, secure, and reproducible code sandboxes for agents. Our platform enables teams to experiment, iterate, and deploy their agents without the friction of environment setup and dependencies. We are a small but mighty team dedicated to building a rock-solid platform that empowers innovation in the age of AI. The Role As a Full Stack Software Engineer at Runloop, you'll be at the forefront of building a revolutionary platform that enables the next generation of AI-augmented software engineering tools. You'll be a hands-on contributor working directly with a world-class team — including the co-founder of Google Wallet and 100% of its founding team. You'll work across the stack — from our core containerization and microVM infrastructure to the developer-facing APIs, SDKs, and UI built on top of it — tackling critical projects around billing, usage tracking, and marketplace integrations, alongside the unique challenges of AI agent orchestration and code execution. Responsibilities Billing & Usage Tracking: Lead the evolution of our usage tracking and billing systems, integrating new Stripe V2 APIs to support Runloop's growing platform Marketplace Expansion: Drive our expansion into major cloud marketplaces like Google Cloud and Azure AI-Driven Product Development: Design and implement key components of our AI software engineering platform Developer Experience: Design and ship user-facing workflows and APIs, and create intuitive SDKs and developer tools that make it easy for our users to build and scale their AI coding solutions on top of Runloop across the stack, including our robust UI Scalability and Performance: Work across the stack on our core platform — leveraging Docker, containerization, and microVMs — to build highly scalable and efficient systems capable of handling the unique demands of AI-powered software engineering tools, including long-running AI jobs and extreme parallelization Security and Compliance: Implement robust security measures to ensure the safe execution of AI agents and protect sensitive codebases Product & Cross-Functional Collaboration: Work closely with product, design, and infrastructure partners to translate user needs into high-quality technical solutions. Participate in technical design discussions and contribute to roadmap planning Quality, Testing & Iteration: Write maintainable, well-tested code. Improve code quality, developer workflows, and internal tooling to help the team move quickly and confidently Qualifications 4-7 years of experience building performant products or infrastructure deployed at scale, with a strong background in full stack software engineering Hands-on builder who can reason through complex systems and thrives in a high-ownership environment Experience building developer platforms or APIs Proficiency in languages commonly used in AI and full stack development (e.g., Python, Java, TypeScript) Experience with cloud infrastructure, containerization (Docker), and orchestration technologies; familiarity with microVMs a plus Experience with billing, usage-metering, or payments systems is a strong plus Strong problem-solving skills and ability to tackle novel technical challenges Passion for developer tools and improving software engineering processes Bonus Points Familiarity with AI/ML concepts, particularly in the context of code generation or analysis Experience integrating with cloud marketplaces (Google Cloud, Azure, AWS) Benefits Competitive salary and equity Comprehensive health, dental, and vision insurance for employee and dependents Opportunity to work on cutting-edge technology and make a real impact on the future of software engineering Daily catered lunch for all employees and a fridge full of your favorite snacks and drinks Location : Onsite 4 days a week in San Francisco; Optional 1 day a week remote Join Us! If you're excited about shaping the future of AI-driven software engineering and empowering developers to build the next generation of AI powered coding tools, we want to hear from you. Join the Runloop team and be at the forefront of the AI revolution in software development. Runloop AI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, sexual orientation, gender identity, or any other characteristic protected by law.