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Welcome to Crosby, the next generation law company!We’re a team of technologists and legal experts collaborating closely to reimagine corporate legal services from the ground up. We build proprietary

Join to apply for the Founding Frontend/Design Engineer role at Rebolt (YC W25) Join to apply for the Founding Frontend/Design Engineer role at Rebolt (YC W25) Get AI-powered advice on this job and mo

Vantheon is a research lab studying how AI will disrupt investing across economic classes. We believe the tools of wealth creation have been locked behind institutional walls for too long. We are here

Vantheon, located in Austin, Texas, is looking for a Product Engineer with 2-5 years of experience. In this role, you will design intuitive user experiences using React and Next.js, while collaboratin

Worktrace AI in San Francisco is seeking a Founding Frontend Engineer to help turn its ambitious product vision into reality. You will lead the charge in establishing the frontend aspects of cutting-e

Blue Bear Capital in San Francisco is seeking a UI/UX-centric software engineer to own the frontend experience across mobile and web products. Responsibilities include building workflows and ensuring

Dormont Manufacturing Co is seeking a Founding Frontend Engineer to develop and optimize AI-powered web applications. Located in New York, this role involves collaborating with a world-class team and

Transformcap is seeking a Front-end/UX engineer who will be a key member of our founding team. You'll work on our leading AI platform for life sciences, shaping the user experience and designing perfo

The Role Have you ever wanted to work on firmware for a jet engine and a fusion power plant in the same day? As we continue to scale our product, we’re seeking a resourceful, product‑obsessed founding

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

San Francisco, CA · On-site · Full-time Compensation:$150,000–$300,000 + 0.1%–1% equityAbout the Company A Seed-stage AI company (founded 2024, $7.5M raised) building production-grade systems that con

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

About Probably Genetic Probably Genetic is changing the lives of patients living with severe, complex diseases. Our data platform is used by drug developers and patient advocacy groups to develop and

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

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 Engineer (Platform/Infra/DevOps) San Francisco, CA Apply for this job "Would love someone with more experience working in and out of cloud infra, DevOps, secops, etc. Someone who wants owners

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

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

Ersilia is hiring an Applied AI Engineer to design and implement core systems for hardware engineering. This role focuses on building AI agents that integrate with enterprise-level engineering tools a

Founding Forward Deployed Machine Learning Engineer Most AI is frozen in place - it doesn't adapt to the world. We think that's backwards. Our mandate is to build efficient intelligence that evolves i

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

Day One Partners is seeking a backend developer in San Francisco to build and scale AI-powered systems. Join a venture-backed startup creating technology to navigate chronic health conditions. You wil

Success Matcher Recruitment is seeking a founding analytics engineer to build a robust data layer from scratch. This role offers total ownership over analytics data models and direct influence on comp

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