Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Founding AI Systems Engineer — Build Core Platform

Career Mentors, LLC

An innovative AI startup in San Francisco is seeking a Founding Engineer to design and build core systems from the ground up. In this role, you will make architectural decisions that significantly impact how the company operates. The ideal candidate has extensive experience in engineering and operates comfortably in ambiguous environments. This hybrid role offers a competitive salary and equity, with high expectations for ownership and impact. #J-18808-Ljbffr Career Mentors, LLC

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Founding AI Systems Engineer — Build Core Platform in San Francisco, CA vacancy
  • A leading healthcare tech startup in San Francisco is seeking a founding engineer to build and scale AI infrastructure. The role involves collaborating with a skilled team to shape the company's product and culture. Candidates should have 1 to 10+ years of experience in... 
    Platform

    Valerie Health

    San Francisco, CA
    4 days ago
  • $200k - $300k

    Fragment Data Technologies is seeking Founding Engineers in San Francisco to design and build foundational architectures for AI agents that resolve procurement exceptions across complex enterprise data. Ideal candidates should have 2-7 years of experience, be comfortable... 
    Platform

    Fragment Data Technologies

    San Francisco, CA
    1 day ago
  • $160k - $220k

    A leading AI company in San Francisco is seeking an experienced Founding Engineer to build core systems from the ground up. This hybrid role emphasizes real ownership and long-term impact within a cutting-edge team dedicated to innovative, autonomous software. The position... 
    Platform
    Visa sponsorship

    NewsNowGh

    San Francisco, CA
    4 days ago
  • $180k - $250k

    A leading AI language learning platform is hiring a Founding AI Systems Engineer in San Francisco. You will lead the architecture of AI systems that enhance language learning through personalized dialogue. The role requires a systems-thinking background and experience... 
    Platform

    Pingo AI

    San Francisco, CA
    2 days ago
  • A technology startup in San Francisco is seeking a Founding AI Engineer to develop an AI-powered knowledge platform. You will participate in product development from architecture to deployment, optimize systems, and implement backend services. Candidates should have an... 
    Platform
    Flexible hours

    Falconer

    San Francisco, CA
    2 days ago
  • A leading AI technology firm in San Francisco is seeking an AI/Data Systems Engineer to build critical data pipelines that transform unstructured inputs into structured outputs. This role involves ensuring the accuracy and reliability of data that supports simulations and... 

    Mercator

    San Francisco, CA
    1 day ago
  • A dynamic pre-seed startup is seeking a Founding Software Engineer to revolutionize the construction industry with AI-powered solutions. This role requires a proactive builder mentality and technical excellence, allowing you to take ownership of product features from conception... 
    Platform

    Pear VC

    San Francisco, CA
    3 days ago
  • Hilbert is building a reasoning engine that must navigate non-...  ...demand intelligence platform doesn't just call...  ...leading AI companies. We're...  ...production-grade AI systems end-to-end — from...  ...role. You'll own core pieces of the AI...  ...directly with the founding team and across product... 
    Platform
    Full time
    Shift work
    Night shift
    Weekend work

    Hilbert's AI

    San Francisco, CA
    3 days ago
  •  ...This is a job that Jill, our AI Recruiter, is recruiting for on behalf...  ...to Jack. Job Title: AI-Native Founding Engineer Company Description: Fancysauce...  ...grads and Apple alumni. You will own core platform verticals end-to-end, building agentic recipes that help... 
    Platform

    Jack and Jill AI

    San Francisco, CA
    1 day ago
  •  ...Founding AI Engineer Weave (YC W25) is building the definitive platform for understanding and improving how engineering teams work. We believe the way engineering output is measured today is fundamentally broken and that modern AI can give teams a far more accurate... 
    Platform

    Weave, Inc.

    San Francisco, CA
    1 day ago
  •  ...Founding Ai Engineer At Falconer, we're transforming how engineers create, access,...  ...Founding AI Engineer to help us build an AI-powered knowledge platform that companies love. As a founding...  ...Develop and maintain backend systems including API services, databases... 
    Platform
    Work experience placement
    Work at office
    Flexible hours

    Falconer AI

    San Francisco, CA
    3 days ago
  • $230k - $300k

     ...dedicated to helping companies build exceptional teams. We...  ...candidates. Title of Role: Founding AI Engineer (Agentic Systems / Full-Stack) Location:...  ...that assist users, their platform is designed to replace...  ...You Will Do Build core agentic systems that... 
    Platform
    Work at office
    Immediate start
    3 days per week

    Recruiting from Scratch

    San Francisco, CA
    1 day ago
  • Embedding VC is seeking a founding engineer to help build core products and systems. Work directly with the CEO and CTO as part of an experienced team. You will design AI systems, implement features, and enhance product usability. The ideal candidate has over 5 years of... 
    Flexible hours

    Embedding VC

    San Francisco, CA
    2 days ago
  • A dynamic AI recruitment service is seeking a Founding Engineer in San Francisco to build AI agents that revolutionize workflows for food manufacturers. The role offers a unique opportunity to work directly with industry leaders and earn 0.5%-2% equity. Ideal candidates... 

    Jack & Jill/External ATS

    San Francisco, CA
    2 days ago
  • A pioneering tech startup in San Francisco is seeking a founding engineer to help build their core product from the ground up. This hands-on role demands a product-minded individual who thrives in startup environments. Responsibilities include building robust frontend... 
    Weekday work

    Weekday

    San Francisco, CA
    3 days ago
  • $73.8k - $218.8k

     ...Oracle Business Group AI Center of...  ...ecosystem. We build real products that...  ...production - a knowledge platform spanning 27 Oracle...  .... This is a founding team, these first...  ...the culture, the systems, and the trajectory...  ...You might come from engineering, consulting, product... 
    Platform
    Work experience placement
    Live in
    Work at office
    Local area

    Accenture

    San Francisco, CA
    2 days ago
  •  ...backlog of legacy enterprise systems blocking AI adoption. It is humanly...  ...Gallop Intelligence, we are building the AI platform to modernize these systems...  ...Fortune 500 companies. Founded by veterans from Lovable,...  ...will do As a Founding AI Engineer, you will have outsized impact... 
    Platform

    Gallop Intelligence Inc.

    San Francisco, CA
    4 days ago
  • Jack & Jill is seeking a Founding AI/ML Engineer in San Francisco. The role involves building Generative Engine Optimization systems for AI search. Ideal candidates have strong NLP fundamentals and experience in production ML systems. You'll collaborate with world-class... 

    Jack & Jill

    San Francisco, CA
    4 days ago
  • $180k - $220k

    Who we are: Cooper AI is building AI for commercial insurance, taking the manual, time‑consuming...  .... About the role: We’re hiring the Founding Engineering team for a new hyper‑growth AI...  ...in different languages and platforms. Hands‑on with modern AI stacks (LLMs... 
    Platform
    Full time
    Work experience placement
    Local area
    Work from home

    Cooper AI

    San Francisco, CA
    2 days ago
  • $100k - $150k

    Most AI systems generate text. We’re building one that makes decisions . Pareto Agent is a...  ...Francisco, the company is founded by serial entrepreneurs...  ...As our Founding Software Engineer — Studio , you will own the...  ..., consuming upstream platform events and optimizing for... 
    Platform
    Summer work
    Work at office
    Flexible hours

    Pareto Agent

    San Francisco, CA
    2 days ago
  • $140k - $200k

    Founding Forward Deployed AI Engineer Job type: Full Time · Department: Engineering · Work type: On-Site...  ...—keying information into systems, chasing documents, doing mundane...  ...grind through it manually. We're building an AI platform to automate this insurance drudgery... 
    Platform
    Full time
    Work at office
    Immediate start

    Neara

    San Francisco, CA
    4 days ago
  • Core AI Platform Team Overview The Core AI Platform team is...  ...responsible for three things: Building and maintaining the...  ..., evaluation systems) that all product teams...  ...a team of senior AI engineers - both applied AI and...  ...Nice to have: Founded or built a new team/function... 
    Platform
    Work at office
    Remote work
    Work from home
    Monday to Friday
    Flexible hours

    Front

    San Francisco, CA
    2 days ago
  • About the team We’re building the AI-native compliance platform for community banks...  ...and fragmented systems. Community banks, despite...  ...Our team includes engineers and researchers...  ...role This is a true founding engineer role . You...  ...with banking APIs, core banking systems, or... 
    Platform

    Pear VC

    San Francisco, CA
    4 days ago
  • Guild.ai, Inc. is seeking a founding engineer in San Francisco to build production agents on their new AI platform. You will design, implement, and ship early agents that help developers manage complex systems. Responsibilities include owning workflows end-to-end and integrating... 
    Platform
    Flexible hours

    Guild.ai, Inc.

    San Francisco, CA
    5 days ago
  • $200k - $250k

    A fast-growing AI company in San Francisco seeks a Founding Engineer to architect and build core systems that power precision outbound for startups. Ideal candidates have 1-6 years of experience, strong full-stack expertise especially in TypeScript, React, Next.js, and... 
    Platform

    Cardinal

    San Francisco, CA
    3 days ago
  •  ...OpenArt is an AI Storytelling and Visual Creation Platform used by millions worldwide. We're building the next generation...  ...how data supports AI systems, agents, and long-term...  ...'re looking for a Founding Data Engineer to build and own OpenArt's core data platform and source... 
    Platform
    Remote work
    Worldwide
    Visa sponsorship

    Embedding VC

    San Francisco, CA
    1 day ago
  • Skiffra is building the intelligence layer...  ...data. While most AI companies focus on...  ...orchestration systems for the sectors that...  ..., but the platform is modular by design...  ...re looking for a Founding AI Engineer (LLMs & Agents) to...  ...architect and build the core intelligence... 
    Platform

    Rethink recruit

    San Francisco, CA
    5 days ago
  •  ...Skiffra Skiffra is building the intelligence...  ...data. While most AI companies focus on...  ...native orchestration systems for the sectors...  ...resources, but the platform is modular by design...  .... The Role As a Founding AI Engineer, you will be the architect of our core intelligence. This... 
    Platform

    Skiffra

    San Francisco, CA
    2 days ago
  • Harrison Clarke is seeking a Founding Engineer in San Francisco for a...  ...pioneering role in an early-stage AI and cloud infrastructure...  ...technical direction and build core systems from scratch. Ideal candidates...  ...-on experience in cloud platforms like AWS or GCP. The role promises... 
    Platform

    Harrison Clarke

    San Francisco, CA
    4 days ago
  • A cutting-edge technology firm in San Francisco is seeking a Founding Software Engineer focused on Spatial Systems. You will take ownership of building the core geometry logic for our platform, tackling complex engineering problems in a high-impact role. Candidates should... 
    Platform

    Rethink recruit

    San Francisco, CA
    5 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Founding AI Systems Engineer — Build Core Platform. Be the first to apply!