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Triage is an applied research lab building adaptive security and safety alignment infrastructure for AI systems: defending against novel attack vectors and catching misalignment at inference-time in d

Founding Engineer, Backend & Infrastructure About Backbone Care should be paid for the moment it’s delivered. At Backbone, we’re making that possible for the first time by building the clinical AI lay

Backbone Systems in San Francisco is seeking a Founding Engineer to own systems that facilitate clinical and financial workflows. You will build and scale distributed systems, focusing on automation a

Soulside AI in San Francisco is searching for a Backend Engineer to join their founding team. This role offers the unique chance to shape the technical foundation of a revolutionary mental health care

Dormont Manufacturing Co is seeking a Founding Software Engineer for its early-stage AI & LLM startup based in San Francisco. The ideal candidate should have a strong background in Python, experience

Catalog, a San Francisco-based company, is seeking an experienced engineer to develop backend systems for AI-driven commerce. The role emphasizes ownership of significant projects, working on ETL pipe

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

Hypercubic is looking for a founding backend engineer based in San Francisco, California. In this role, you'll prototype and productionize AI-powered systems, directly working with the CTO. This posit

Compound AI seeks exceptional backend engineers in San Francisco to build the data pipelines that drive its AI agents. You will work directly with the founding team to integrate diverse financial data

David Joseph & Company is seeking a backend engineer in San Francisco. This role involves architecting, building, and scaling core backend systems for AI-driven document intelligence. The ideal candid

jobr.pro in San Francisco is looking for a backend engineer to own core services that power AI voice and browser agents. You will design and build backend services, integrate with healthcare systems,

Greylock Partners in San Francisco is seeking a Senior Software Engineer to join their team. This unique position is ideal for someone with a passion for building large-scale back-end systems and an e

Twenty Labs in San Francisco is seeking exceptional backend engineers to develop and optimize data pipelines that power their AI agents. Ideal candidates have deep expertise in handling and serving la

The role We are hiring a Founding Frontend Engineer to be the tip of the spear for turning Worktrace AI’s ambitious product vision into reality. In this role, you will be a key part of the founding te

LocationSan Francisco Bay Area Employment TypeFull time Location TypeHybrid DepartmentFinance & Operations About HiggsfieldHiggsfield AI is the leading video AI company redefining synthetic media on s

Founding ML Engineer San Francisco, on-site, full-time - $200,000 - $500,000 per year. $10k referral bonus for successful hires (half equity, half cash).It's Monday, 10 AM. You walk through the glass

Data/ETL Engineer (Founding Team) Location: San Francisco Bay AreaType: Full-TimeCompensation: Competitive salary + early-stage equityBacked by 8VC, we're building a world-class team to tackle one of

Scribd, Inc. is seeking an experienced software engineer to join the Content Foundations team in San Francisco. This role involves designing and implementing features that enhance content processing a

Frontend Engineer (with familiarity of full stack) (Founding Team) Location: San Francisco Bay Area Type: Full-Time Compensation: Competitive salary + meaningful equity (founding tier) Backed by 8VC,

Dormont Manufacturing Co is seeking a dedicated Data professional to handle analytics pipelines and develop data solutions. You will work cross-functionally with various teams and ensure the quality a

Clera is on the lookout for a founding engineer to join our hackerhouse in San Francisco. You will play a critical role in automating headhunting processes while working closely with our CTO. Ideal ca

About HappyRobotHappyRobot is the infrastructure for enterprises to build and orchestrate AI workforces. Our AI workers don’t just communicate - they make decisions, take action, and run operations au

Who We Are Imprint is building a platform that helps the world’s best brands grow the lifetime value of their customers. We started with co-branded credit cards and rebuilt them to be smarter, more re

Join us at Cleric We’re building an autonomous AI agent that investigates and resolves production incidents. Our agent combines LLMs with tools to understand systems, reason through problems, and take