- Jack & Jill/External ATS (San Francisco, CA)
- Founding Senior Software Engineer Salary:...VC-backed developer tools startup Job Description: Join as a founding engineer to build a world‑class ... a team. Location: San Francisco, USA Why this role is remarkable: Founding employee status with significant equity (1.5‑3%) in a high‑potential seed‑stage venture.… more
- DRH Search (San Francisco, CA)
- A fast-growing startup in San Francisco seeks a Founding Sr. Engineer to lead a team and redefine insurance claims processing. You will create specs, build ... scalable infrastructure, and deploy code from day one. The ideal candidate has 5+ years in Python and backend development, strong problem-solving skills, and experience in startups. This is an on-site role with significant leadership opportunities as you find… more
- RainesDev (San Francisco, CA)
- …to optimize and automate claims processing worldwide. Roles and Responsibilities Build the foundational backend and database infrastructure for Strala's AI-driven ... infrastructure, and containerized applications (Docker, GCP, AWS). Collaborate with the founding team to shape Strala's technology stack and engineering culture. Job… more
- The LLM Data Company (San Francisco, CA)
- …foundational research to publish open source environments and training data Build data generation and curation pipelines to support frontier post-training ... Collaborate with product teams to deliver a user friendly interface for non-technical users to generate data Qualifications Master or PhD in Computer Science or related field Comfort with core tooling (verl, PyTorch, etc.) Familiarity with modern post-training… more
- Jack & Jill/External ATS (San Francisco, CA)
- A VC-backed developer tools startup in San Francisco seeks a Founding Senior Software Engineer to build a firmware development platform. In this hands-on ... role, you'll influence product strategy and architecture while working closely with the CTO. The ideal candidate has 4+ years of experience with full-stack development, particularly in scaling products for technical users, and is interested in firmware and… more
- Getclera (San Francisco, CA)
- Senior Full Stack Engineer - Founding Team About this role About Fulcrum Fulcrum is re‑wiring the insurance‑brokerage industry with AI agents that let ... meaningful founding ‑team equity. Why join as a Senior Full Stack Engineer ? Own the product...engineering standards from the ground up. What you'll do Build full‑stack products & features that blend UX with… more
- Intercom (San Francisco, CA)
- …gap between their business goals and our AI Agent for Customer Service, Fin. As a founding Senior Forward Deployed Engineer you'll get to interact with our ... service. Driven by our core values, we push boundaries, build with speed and intensity, and consistently deliver incredible...Bonus points if you're a former founder or early engineer at a startup. You are interested in AI/ML.… more
- Getclera (San Francisco, CA)
- A pioneering tech company in San Francisco is looking for a Senior Full Stack Engineer to drive product development and work alongside enterprise users. You'll ... build innovative solutions using a cutting-edge tech stack including TypeScript, React, and AWS. Ideal candidates will have 3-5 years of experience in software… more
- Slope (San Francisco, CA)
- …150k developers, adding 1000 every day. Give it a try here The Role The Founding Senior Engineer (Infra) will be responsible for scaling Vapi's real‑time ... You'll also be a foundational part of how we build the culture at Vapi. Outcomes Own scalability projects...or annoy everyone until it's done ;) Qualifications Previous Founding /Infrastructure/DevOps Engineer 1+ year of experience with… more
- Amadeus Search (San Francisco, CA)
- Role: Founding Fullstack Engineer Location: New York or San Francisco (hybrid, 3-4 days in office + 1 weekend day remote) Compensation: $150k - $220k + 1%-1.5% ... major tech companies and institutions. They've also brought on senior commercial/legal leadership to accelerate customer adoption. About the...to accelerate customer adoption. About the Role As a Founding Fullstack Engineer , you'll be among… more
- Clearpath (San Francisco, CA)
- …Our "unit of success" isn't revenue-it's policy outcomes. We're now looking for a Founding Software Engineer to build the core technology that makes ... quickly. Our mission is to organize civic leaders to build a 21st-century government. We are focused on "policy...government systems. Background in early-stage startups or as a founding engineer . Strong product and UX instincts.… more
- Menlo Ventures (San Francisco, CA)
- …building consumer-grade software Experience in scaling and working with enterprise clients Founding engineer experience at pre-seed through series A or B ... technologies like agentic AI, LLMs, and Retrieval-Augmented Generation (RAG) to build a platform that guarantees enterprises millions in savings on their… more
- Seekeasy (San Francisco, CA)
- The Opportunity As a senior web & mobile frontend engineer at...culture of innovation. Who you are You are a builder : You love to build , ship, get ... beautiful user experiences, and help define the way we build consumer applications that scale to millions. Build...and fast pace of startup environments. A seasoned software engineer with 8+ years of experience and a track… more
- Recruiting From Scratch (San Francisco, CA)
- …America, South America, and Europe to help them hire. https://www.recruitingfromscratch.com/ Senior Data Platform Engineer - Fast-Growing YC-Backed Startup ... and implement scalable data platforms handling terabyte-scale IoT and time-series data Build and optimize both streaming and batch data pipelines supporting core… more
- RainesDev (San Francisco, CA)
- An innovative tech startup in San Francisco is seeking a mid to senior level Python backend developer. The role involves designing and maintaining scalable backend ... over 4 years of Python development experience and demonstrated ability to build production-grade systems. A strong understanding of cloud infrastructure and AI… more
- Slope (San Francisco, CA)
- … it yourself or annoy everyone until it's done ;) Qualifications: Previous Founding / Senior /Staff/Principal Engineer 1+ years of experience at company 5+ ... day. Give it a try here The Role The Senior Backend Engineer will own features end-to-end...You'll also be a foundational part of how we build the culture at Vapi. Outcomes Own and deliver… more
- Promptfoo (San Francisco, CA)
- …face of Promptfoo for developers Serve as the developer voice within the company Build and lead the education engine Grow a strong community Help teams confidently ... friction in install, configuration, and CI setup Demos and Integrations Build small, well‑documented sample apps Demonstrate modern patterns for retrieval, agents,… more
- Sample Healthcare, Inc. (San Francisco, CA)
- …onto something big. The opportunity We're building a generational company. As a founding engineer at Sample, you'll face healthcare's most important problems and ... Our founders were early engineers at companies like Retool ( engineer #9) and Ambience Healthcare (first employee), so we...and velocity and built a sense around the tradeoffs Senior / Staff Engineers Compensation: $180K -250K + equity… more
- Amadeus Search (San Francisco, CA)
- …of experience as a fullstack engineer , ideally in early-stage or founder/ founding engineer roles Proven backend expertise: Python, Flask, Redis, Celery, GCP, ... Senior Fullstack Engineer Location: On-site, San...technical roadmap. This is an opportunity for a high-ownership engineer to build real-world applications that people… more
- Serval, Inc. (San Francisco, CA)
- …like First Round, General Catalyst, Alt Capital, and Box Group. Role Overview As a Senior Fullstack Engineer at Serval, you'll play a pivotal role in shaping the ... of humans. Serval "automates the automation," using a natural language-to-code workflow builder and AI agents that discover and deliver automations for tedious IT… more
