Senior Software Engineer - Collaborative Web Platform Pantheon Systems, IncSenior Software Engineer - Collaborative Web PlatformSan Francisco, CA$139,680–$174,600 / yearPantheon is uniquely positioned — with deep roots in the web platform, a global CDN, and a sophisticated branching model trusted by thousands of organizations — to build the collaborative content experience the modern web deserves. Genuine full-stack capability — you have shipped production systems on both backend (APIs, cloud infrastructure, data services) and frontend (component systems, browser performance, interactive UIs).
NewFull-Stack Software Engineer, Reinforcement Learning HUDFull-Stack Software Engineer, Reinforcement LearningSan Francisco, CaliforniaYou’ll own product surfaces end-to-end, including backend services, APIs, databases, dashboards, tools, vendor workflows, data collection, and observability for RL rollouts. You don’t need to be a researcher, but you need to work research engineers and vendors to translate ambiguous needs into polished products that enable our RL systems.
Software Engineer, Core Services RetoolSoftware Engineer, Core ServicesSan Francisco, CaliforniaWHAT YOU'LL DO The Core Services team owns key backend services powering broad areas of the Retool product, including code execution and the infrastructure behind resource connectors that allow customers to connect Retool to their data. Build with any AI tool you want, then deploy into one place that connects to your real business data, enforces enterprise policies automatically, and lets teams create once and reuse everywhere with shared, trusted components.
Software Engineer, Resources RetoolSoftware Engineer, ResourcesSan Francisco, CaliforniaNearly every company in the world runs on custom software for critical operations like tracking performance metrics, handling support workflows, building admin dashboards, and countless processes you might never have thought of. Build with any AI tool you want, then deploy into one place that connects to your real business data, enforces enterprise policies automatically, and lets teams create once and reuse everywhere with shared, trusted components.
Staff Software Engineer, Lending Products ParafinStaff Software Engineer, Lending ProductsSan Francisco, CA$285,000–$330,000 / yearYou'll make architecture decisions that affect company-wide architecture, drive alignment across the teams that depend on your platforms, and raise the bar for engineering quality by mentoring engineers and improving team processes. We're looking for an experienced backend engineer to join our Lending Products team in San Francisco and lead the technical evolution of the platforms and infrastructure that power Parafin's lending products.
Software Engineer, Compute Infrastructure OpenAISoftware Engineer, Compute InfrastructureSan 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. Experience in one or more relevant areas such as distributed systems, operating systems, networking protocols, RDMA, NCCL or collective communication, storage, Kubernetes, scheduling, observability, reliability engineering, high-performance computing, GPU infrastructure, CaaS, agent infrastructure, hardware-aware performance optimization, benchmarking, developer experience, or infrastructure tooling.
Forward Deployed Software Engineer Recruiting From ScratchForward Deployed Software EngineerSan Francisco, New YorkRemoteIts platform combines large language models, retrieval-augmented generation (RAG), production data pipelines, machine learning, and modern software engineering to deliver highly customized AI solutions directly inside customer environments. As a Forward Deployed Software Engineer, you'll work directly with customers to design, build, and deploy AI-powered software tailored to their operational needs while collaborating closely with implementation, product, and engineering teams.
NewStaff ML Engineer, Search Ads Shopping Relevance Models Google LLCStaff ML Engineer, Search Ads Shopping Relevance ModelsMountain View, CAWe"re looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. Collaborate on user journey understanding, metric and label formulation, feature and model improvements, live traffic experiments, data analysis, tools and infrastructure, and more, to predict and improve user experience on search ads.
Staff Software Engineer, Applied AI Emergence Capital PartnersStaff Software Engineer, Applied AISan Francisco, CaliforniaYou won't just be integrating APIs – you'll be designing AI systems that work reliably in production, building evaluation frameworks to measure quality, and iterating rapidly based on real user feedback. This role sits at the intersection of product and engineering– you'll own features end-to-end, from understanding user problems to shipping production code that scales.
Software Engineer, Security PylonSoftware Engineer, SecuritySan Francisco, CaliforniaWork hands-on with engineers to ship fixes and help them build securely by default, telling the difference between theoretical risk and risk that actually matters so we spend effort where it counts. Unlike platforms built before the AI era, Pylon enriches every interaction with deep account-level context, automates the low impact customer work, and surfaces answers before your team even has to ask.
Senior Software Engineer - Fullstack Sigma ComputingSenior Software Engineer - FullstackSan Francisco, CA$150,000–$240,000 / yearThe round was led by Princeville Capital, with new strategic investors Databricks Ventures, ServiceNow Ventures, and Workday Ventures participating alongside returning investors Altimeter Capital, Avenir Growth Capital, D1 Capital Partners, K5 Global, NewView Capital, Spark Capital, Sutter Hill Ventures, and XN. This milestone follows Sigma reaching $200M in annual recurring revenue in April 2026, with more than 100% year-over-year growth and 1.1 million new active users added in the latest fiscal year.
Senior Software Engineer, Genai Scale AI, Inc.Senior Software Engineer, GenaiSan Francisco, CA$216,200–$270,250 / yearThe range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position and may be inclusive of several career levels at Scale; it will be determined during the interview process based on work location and additional factors, including job-related skills, experience, qualifications, interview performance, and relevant education or training. Our products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact.
Software Engineer, Infrastructure PylonSoftware Engineer, InfrastructureSan Francisco, California$180,000–$280,000 / yearUnlike platforms built before the AI era, Pylon enriches every interaction with deep account-level context, automates the low impact customer work, and surfaces answers before your team even has to ask. For leaders scaling AI-native support teams, Pylon lets humans and agents collaborate on customer work – investigating, resolving, and acting on every signal across every channel that matters.
Software Engineer - GPU Networking & Distributed Systems BaseTenSoftware Engineer - GPU Networking & Distributed SystemsSan Francisco, CADeep-Dive into Hardware: You will characterize and validate networking performance on bleeding-edge clusters (H100/H200, B200/B300, GB200/300 NVL72), writing the acceptance tests that ensure our hardware delivers peak achievable throughput and minimal latency. Optimize Distributed Inference: You will implement and tune the networking layers necessary for efficient Disaggregated KV Cache Offload and WideEP, ensuring seamless communication across NVLink and InfiniBand for our MoE models.
Software Engineer, Internal Tools MetriportSoftware Engineer, Internal ToolsSan Francisco, CaliforniaBuilding Automations End-to-End : Designing and shipping integrations between our internal and third-party systems — from scoping the requirement with a stakeholder, to deploying a working solution, to making sure it doesn't break quietly. Evaluating and Adopting New Tools : Researching integration platforms (Zapier, n8n, Make, etc.) and AI productivity tools, working with the Security team to assess their security posture, and rolling them out in a way that meets our compliance requirements.
Staff Software Engineer - Fullstack Sigma ComputingStaff Software Engineer - FullstackSan Francisco, CA$240,000–$270,000 / yearThe round was led by Princeville Capital, with new strategic investors Databricks Ventures, ServiceNow Ventures, and Workday Ventures participating alongside returning investors Altimeter Capital, Avenir Growth Capital, D1 Capital Partners, K5 Global, NewView Capital, Spark Capital, Sutter Hill Ventures, and XN. This milestone follows Sigma reaching $200M in annual recurring revenue in April 2026, with more than 100% year-over-year growth and 1.1 million new active users added in the latest fiscal year.
Staff Software Engineer - Authentication & API OrumStaff Software Engineer - Authentication & APISan Francisco, CaliforniaYou’ll architect, build, and evolve systems spanning backend services, APIs and authentication systems that power Orum’s live calling platform at scale, while mentoring engineers and raising the bar for simplicity, performance, and reliability. Own complex product areas end-to-end—from discovery and design to implementation, rollout, and iteration—operating across Node/TypeScript backends, APIs and Auth systems, with React frontends.
Staff Software Engineer - Product Platform Team OrumStaff Software Engineer - Product Platform TeamSan Francisco, CaliforniaYou’ll architect, build, and evolve systems spanning backend services and modern web UIs that power live calling workflows (e.g., SIP/event-driven softswitch paths, WebSocket-driven experiences, and streaming audio processing), while mentoring engineers and raising the bar for simplicity, performance, and reliability. From intelligent dialing and real-time conversation insights to AI-driven coaching and virtual sales floors, Orum is powering thousands of sales teams to have more meaningful conversations and turn every call into measurable impact.
Software Engineer - Enterprise Platform BaseTenSoftware Engineer - Enterprise PlatformSan Francisco, CAEnterprise engineering authors the core building blocks, APIs, and user experiences powering the Baseten platform: identity and access management, billing, regional isolation, and self-hosted and single-tenant deployment options. Experience building enterprise software, including work on one or more of: identity and access management, billing systems, multi-tenant isolation controls, private connectivity, or compliance program initiatives.
Senior Software Engineer, Production Engineering Harvey, Inc.Senior Software Engineer, Production EngineeringSan Francisco, CA$161,300–$241,900 / yearOperate and continuously improve Harvey's Kubernetes platform, including cluster provisioning, upgrades, networking, monitoring, reliability, performance, and operational automation. Establish reusable patterns, tooling, and paved paths that help engineering teams ship and operate production services safely.