Software Engineer, Open Source CrewAISoftware Engineer, Open SourceSan Francisco, CADesign, build, and maintain core framework capabilities: agent orchestration, agent harness, Flows, task execution, tools, memory, MCP, A2A, and the public APIs developers depend on. The open-source framework is a lean, fast Python library that has grown to 53k+ GitHub stars, 7.4k+ forks, and 100k+ developers certified through our community courses.
Software Engineer (Agent Platform) BrowserbaseSoftware Engineer (Agent Platform)San Francisco, CaliforniaFamiliarity with web automation frameworks (Puppeteer, Playwright, Selenium) or web scraping; huge bonus: Chrome DevTools Protocol (CDP) experience. Backed by Kleiner Perkins, CRV, and Notable Capital, our team is building on our CEO's founding vision to power the world's best AI tools and help everyone automate the web.
Staff Software Engineer - Platform/Infrastructure Hyperbolic LabsStaff Software Engineer - Platform/InfrastructureSan Francisco, CaliforniaIn this role, you'll design the tenant management system, build resource lifecycle APIs, implement identity and access control, establish billing and quota frameworks, and create the multi-cloud abstractions that make our platform feel native regardless of the underlying provider. Deep experience building backend services in Go, including API servers, controllers/operators, resource lifecycle management systems, and distributed control plane components.
Software Engineer - Voice AI (Inference Runtime) BaseTenSoftware Engineer - Voice AI (Inference Runtime)San Francisco, CAEXAMPLE INITIATIVES: Develop world-class model serving stack for state-of-the-art open-source voice models - reduce end-to-end and tail latency (p95/p99), increase throughput, and improve GPU efficiency via profiling, runtime tuning, and server-level optimizations. You'll join a small founding team of Baseten Voice AI, focused on bringing state-of-the-art open source models into production for Voice AI customers across productivity, customer service, clinical conversation, creator tools, education, and more.
Lead Security and Infra Engineer LiberateLead Security and Infra EngineerSan Francisco, California$180,000–$240,000 / yearServe as Liberate’s senior technical security owner and escalation point, leading threat modeling and secure design reviews for agent capabilities, tool execution, memory, integrations, multi-tenant services, and sensitive data flows. Establish practical controls for agentic AI risks, including scoped tool access, credential handling, data exfiltration, prompt injection, model and vendor risk, and traceable actions.
Senior Application Security Engineer, AI And Machine Learning Lightning AISenior Application Security Engineer, AI And Machine LearningSan Francisco, CA$180,000–$220,000 / yearYou will work closely with platform engineers, ML engineers, and infrastructure teams to identify risks, design secure architectures, and build security tooling that enables engineers to move quickly and safely. Lightning AI operates globally with offices in New York City, San Francisco, Seattle, and London, and is backed by Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.
Senior Staff Software Engineer, Backend Platform PatreonSenior Staff Software Engineer, Backend PlatformSan Francisco, CaliforniaWe offer creators a variety of ways to engage with their fans and build a lasting business including: paid memberships, free memberships, community chats, live video, and selling to fans directly with one-time purchases. We're continuing to invest heavily in building the best creator platform with the best team in the creator economy and are looking for a Senior Staff Backend Platform Engineer to support our mission.
Software Engineer - GPU Kernels BaseTenSoftware Engineer - GPU KernelsSan Francisco, CAWe're seeking a GPU Kernel Engineer to join our team at the cutting edge of AI acceleration, where your code directly impacts the performance of state-of-the-art machine learning models. You'll work in a fast-paced, intellectually stimulating environment where technical excellence is paramount and your contributions directly influence production systems serving millions of users across numerous products.
Software Engineer, Platform MercorSoftware Engineer, PlatformSan Francisco, CaliforniaOur vast talent network trains frontier AI models in the same way teachers teach students: by sharing knowledge, experience, and context that can't be captured in code alone. Mercor Enterprise brings this same infrastructure to Fortune 500 companies: helping companies capture how their best people actually work, translating that expertise directly back into agents.
NewSenior Software Engineer, Routing Engine (Rust) MapboxSenior Software Engineer, Routing Engine (Rust)San Francisco, CARemote$160,650–$217,350 / yearJob level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. Our annual base compensation for this role ranges from $160,650 - $217,350 for most US locations and 5% to 10% higher for US locations with a higher cost of labor.
NewStaff+ Software Engineer, Platform Distribution AnthropicStaff+ Software Engineer, Platform DistributionSan Francisco, CAThis research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences. The Distribution team owns that transformation: making the Claude API a cloud-native, managed product that runs wherever our customers need it, cross-cloud and on Anthropic's own infrastructure, with the enterprise-grade security, compliance, and operational capabilities to support it.
NewStaff+ Software Engineer, Product Sandboxing AnthropicStaff+ Software Engineer, Product SandboxingSan Francisco, CAYou might be a good fit if you: Have a minimum of 8 years of practical experience as a backend or platform engineer building scalable distributed systems, ideally operating at tech lead level or equivalent distributed systems, cloud-native products, developer tools, or external developer facing products. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences.
Developer Experience Engineer OpenAIDeveloper Experience EngineerSan Francisco, CaliforniaFor 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. As a Developer Experience Engineer, you will create compelling technical content, developer tools, and sample applications designed to inspire developers and enable them to succeed with Codex and OpenAI’s APIs and products for developers.
NewSenior Software Engineer ImgixSenior Software EngineerSan Franscisco, CARemote$180,000–$210,000 / yearAs we continue modernizing our stack, we’re looking for an engineer who looks for meaningful improvements, not just maintenance—someone who raises the technical bar through hands-on work, thoughtful code review, and clear documentation, and treats CSS and UI craft as real engineering, not a chore. You’ll spend a meaningful portion of your time crafting the surfaces our customers actually touch: the dashboard, the image-editing UI, and the APIs for managing accounts and configuration.
Member of Technical Staff – Software & Infrastructure DimensionalMember of Technical Staff – Software & InfrastructureSan Francisco, CaliforniaWe develop a unified framework that enables robots to perceive, reason, learn, and act across diverse real-world environments and embodiments. This role is for an experienced software engineer who thrives in large, complex codebases and cares deeply about engineering quality.
Software Quality & Release Engineering DexmateSoftware Quality & Release EngineeringFremont, CaliforniaOur mission is to democratize robotics by lowering the barrier to entry, delivering a plug-and-play platform for developers, researchers, and enterprises, and cultivating an open ecosystem that accelerates the evolution of physical AI. Today, robotics is fragmented, slow, and closed: most builders are forced to reinvent the same stack again and again, and most ideas never make it past the prototype stage.
Software Engineer - Infrastructure Modern TreasurySoftware Engineer - InfrastructureSan Francisco, CaliforniaWith best-in-class developer tools and a single API for fiat and stablecoins—plus built-in compliance, ledgering, and reporting—Modern Treasury enables businesses to move money instantly, reliably, and at scale. Contribute to infrastructure and security strategy for new payment rails, including FBO structures, stablecoin integrations, and compliance-focused features.
Engineering Manger, Developer Platform StacktraceEngineering Manger, Developer PlatformSan Francisco, CaliforniaRemoteThe Developer Platform team's goal is to allow external developer communities to find and install plugins that completely customize & transform members' experiences and interactions. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.
iOS Developer EyeTelliOS DeveloperSan Mateo, CaliforniaImplement features using various iOS frameworks and APIs, including UIKit, SwiftUI, Core Location, CloudKit, ARKit and GraphQL. We are building something new at the intersection of AI and mixed media and are looking for a passionate and experienced iOS Developer to join our small team.
PHP Developer FukuPHP DeveloperSan Francisco, CASolid understanding of front-end technologies like HTML, CSS, JavaScript, and AJAX.- Experience with database management systems such as MySQL or PostgreSQL.- Knowledge of version control systems like Git.- Strong problem-solving skills and attention to detail.-