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Fable Security in San Francisco seeks an experienced backend developer to work on our data platform. This role involves developing reliable, scalable solutions that turn complex data into high-quality

At Lapel, we believe the most hospitable companies win. We're building the data, infrastructure, and tools that help customer-facing teams understand every customer and act on that insight at scale th

About Us Conversion is the AI-native marketing automation platform for modern software companies. Our platform lets growth teams run their entire go-to-market motion in one place, from acquisition thr

Alumni Ventures is seeking a Senior Software Engineer for their Platform Team in San Francisco. This role focuses on backend services for AI-powered games, requiring 5–8 years of experience in softwar

About Brain Co. Brain Co. is an applied AI startup co-founded by Jared Kushner and Elad Gil, and backed by leading Silicon Valley builders including Patrick Collison and Andrej Karpathy. We are buildi

janitorAI in San Francisco is seeking an engineer to build AI interactive entertainment. The role involves improving product features deeply wired into our AI stack and enhancing performance, reliabil

vCluster Labs is seeking a Staff Software Engineer in San Francisco to redefine Kubernetes multi-tenancy. In this role, you will architect the vCluster Platform, collaborating with top engineering tea

AI Chopping Block, Inc. in San Francisco is seeking a backend engineer responsible for building backend services and cloud infrastructure that facilitate OpenAI’s capabilities. The role involves colla

Unchain Data is seeking a Senior Backend and Data Platform Engineer based in San Francisco to build the core data infrastructure for its financial intelligence platform. You will design and own data f

Neon Redwood in San Francisco is looking for a Backend Engineer to join their team. In this role, you will collaborate closely with the CTO and help design, develop, and maintain APIs and web applicat

Whatnot is seeking a Senior Backend Engineer to join the Horizontal Ops Platform team, focusing on building world-class internal operations tooling. The successful candidate will tackle complex operat

Patreon is a media and community platform where over 300,000 creators give their biggest fans access to exclusive work and experiences. We offer creators a variety of ways to engage with their fans an

Krew Inc. is seeking a (Human) Member of Technical Staff specializing in backend engineering in San Francisco, California. The ideal candidate will be involved in designing and building backend servic

About Rippling Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, ben

The Electric Plant is looking for a Founding Software Engineer in San Francisco to build the software platform integrating IoT hardware and AI. You'll influence architectural decisions and collaborate

Theory Ventures in San Francisco is seeking an experienced engineer to design and build core data models while engineering AI-assisted tools to optimize schema definitions. The role involves scaling a

United States Digital Space LLC in San Francisco is looking for an experienced backend engineer to join their Codex for Finance team. This role involves designing and scaling systems to support AI inn

Tzafon is a foundation model lab building scalable compute systems and advancing machine intelligence, with offices in San Francisco, Zurich & Tel Aviv. We’ve raised over $12m in funding to advance ou

Rime Labs in San Francisco is seeking an experienced backend/full-stack engineer to build and maintain their TTS API. You will work on performance-critical systems and have a direct impact on company

Centaur Labs in San Francisco is seeking experienced Software Engineering professionals to drive foundational investments across the Super Agent and Integration & Platform teams. This role involves so

Madrona Venture Labs is seeking a talented engineer to design the core EAV data model and a schema-as-code platform. You'll build a Git-style version-control engine and engineer AI-assisted tooling fo

Additive-Ai is looking for an experienced Backend Engineer to join their team in San Francisco. This role involves building core systems to deploy machine learning capabilities, driving architectural

Conversion in San Francisco is searching for a backend software engineer to join their core team. This role involves managing terabytes of data, automating critical processes, and generating revenue t

Ripple is seeking a Senior Software Engineer for its Identity & Trust Platform in San Francisco, CA. This role involves designing and developing cloud-native backend services and implementing foundati