1

Founding Ai Engineer Jobs in California (NOW HIRING)

As a Founding AI Engineer, you will work closely with the founders to build advanced systems that streamline compliance with evolving building codes and enhance the design process. Responsibilities ...

Founding AI Engineer

San Francisco, CA · On-site

$200K - $300K/yr

We're looking for a Founding AI Engineer to help us build an AI-powered knowledge platform that companies love. As a founding engineer, you'll have a major impact on our product development ...

Founding AI Engineer

San Francisco, CA · On-site

$150K - $200K/yr

About the Role A fast-growing, AI-first consumer social platform is hiring a Founding AI Engineer to join its core team in San Francisco. The company uses AI agents to facilitate real-world, in ...

The Founding AI Engineer will be responsible for developing the core intelligence for these agents, including designing training pipelines and improving decision-making through reinforcement learning.

Founding AI Engineer

San Francisco, CA · On-site

$150K - $200K/yr

About the Role A fast-growing, AI-first consumer social platform is hiring a Founding AI Engineer to join its core team in San Francisco. The company uses AI agents to facilitate real-world, in ...

Founding AI Engineer

San Francisco, CA · On-site

$120K - $180K/yr

About the Role This is a founding AI engineering role at a seed-stage construction technology company building an intelligence layer that transforms messy blueprints, permits, and construction ...

Founding AI Engineer

San Francisco, CA · On-site

$120K - $180K/yr

Founding AI Engineer We founded Bild AI to tackle the mess that is blueprint reading, cost estimation, and permit applications in construction. It's a tough technical problem that requires the newest ...

Founding AI Engineer

San Francisco, CA · On-site

$160 - $210/hr

We're looking for a Founding AI Engineer to improve Mason's accuracy on our evals. You will go deep on the cutting edge of optimizing multimodal AI agents. We have similar technical problems as other ...

Founding AI Engineer

San Francisco, CA · On-site

$120K - $180K/yr

About the Role This is a founding engineering role at a seed-stage AI startup building the intelligence layer for the construction industry. The company's platform transforms messy blueprints ...

Founding AI Engineer

San Francisco, CA · On-site

$120K - $180K/yr

About the Role This is a founding engineering role at a seed-stage AI startup building the intelligence layer for the construction industry. The company's platform transforms messy blueprints ...

Founding AI Engineer

San Francisco, CA · On-site

$160K - $210K/yr

We're looking for a Founding AI Engineer to improve Mason's accuracy on our evals. You will go deep on the cutting edge of optimizing multimodal AI agents. We have similar technical problems as other ...

Founding AI Engineer

Sunnyvale, CA · On-site

$140 - $210/hr

Context Engineering, Memory and System What You'll Do As a Founding AI Engineer, you will own the entire intelligence layer of this vision from scratch. You will drive the end-to-end implementation ...

Founding AI Engineer

San Francisco, CA · On-site

$120 - $200/hr

Founding AI Engineer San Francisco | Engineering | In office | Full-time Mason AI has cracked a research problem that went unsolved for over half a century: automatically checking blueprints for ...

Founding AI Engineer

San Francisco, CA · On-site

$120K - $180K/yr

About the Role This is a founding AI engineering role at a seed-stage construction technology company building an intelligence layer that transforms messy blueprints, permits, and construction ...

Founding AI Engineer

San Francisco, CA · On-site

$150 - $200/hr

As a Founding AI Engineer, you will be one of the earliest technical hires, shaping the architecture and direction of the AI systems that power the entire product. What You'll Do AI Matching & Social ...

Founding AI Engineer

San Francisco, CA · On-site

$150K - $250K/yr

About the Role As a Founding AI Engineer, you will own the core intelligence of Bronco's agents. That means designing the training pipelines, reward models, and evaluation harnesses that will make ...

Founding AI Engineer

San Francisco, CA · On-site

$190 - $240/hr

About the Role The company is seeking a Founding AI Engineer to build the core intelligence layer of its product, working directly with the founder to automate structured contracting, extract ...

next page

Showing results 1-20

Founding Ai Engineer information

See California salary details

$25

$52

$75

How much do founding ai engineer jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for founding ai engineer in California is $52.93, according to ZipRecruiter salary data. Most workers in this role earn between $42.69 and $61.44 per hour, depending on experience, location, and employer.

What is a founding AI engineer?

A Founding AI Engineer is an early member of a startup's technical team, responsible for designing, building, and implementing artificial intelligence systems that form the core of the company's product or service. This role often involves working closely with company founders to set technical direction, make key architectural decisions, and develop scalable machine learning solutions from the ground up. Founding AI Engineers are expected to wear multiple hats, contribute to both research and engineering efforts, and help establish best practices as the company grows. They play a crucial role in shaping the company's technology culture and long-term vision.

What are the key skills and qualifications needed to thrive as a founding AI engineer?

To thrive as a Founding AI Engineer, you need deep expertise in machine learning, software engineering, and algorithm development, typically supported by an advanced degree in computer science or a related field. Proficiency with frameworks like TensorFlow or PyTorch, cloud platforms (e.g., AWS, GCP), and version control systems is essential, along with experience deploying AI models to production. Strong problem-solving, adaptability, and entrepreneurial mindset distinguish top performers in this role. These skills are vital for building innovative AI solutions from the ground up, shaping product direction, and driving early-stage company success.

What are some unique challenges a founding AI engineer might face in an early-stage startup environment?

As a Founding AI Engineer in a startup, you'll often be responsible for both building core AI systems and setting up foundational engineering practices. Unique challenges include balancing rapid prototyping with long-term scalability, working with limited resources, and defining the technical roadmap alongside product priorities. You'll likely collaborate closely with founders, product managers, and sometimes even customers, making adaptability and strong communication essential. This role offers significant autonomy but also requires comfort with ambiguity and frequent shifts in direction as the company grows.

What is the difference between Founding Ai Engineer vs AI Engineer?

AspectFounding Ai EngineerAI Engineer
Required CredentialsBachelor's or Master's in Computer Science, AI, or related fields; experience in AI developmentBachelor's or Master's in Computer Science, AI, or related fields; experience in AI development
Work EnvironmentStartup or early-stage company, often in a founding or core team roleEstablished companies, tech firms, or startups with ongoing AI projects
Employer & Industry UsageFounding AI roles are common in startups and new venturesWidely used across industries including tech, finance, healthcare, and more

The main difference is that a Founding AI Engineer is typically an early team member in a startup, often involved in shaping the company's AI strategy from the ground up, whereas an AI Engineer generally works within established organizations on ongoing AI projects. Both roles require similar technical credentials but differ in scope, environment, and level of responsibility.

What job categories do people searching Founding Ai Engineer jobs in California look for?

The top searched job categories for Founding Ai Engineer jobs in California are:

What cities in California are hiring for Founding Ai Engineer jobs?

Cities in California with the most Founding Ai Engineer job openings:

Infographic showing various Founding Ai Engineer job openings in California as of August 2026, with employment types broken down into 81% Full Time, 17% Part Time, and 2% Contract. Highlights an 63% Physical, 4% Hybrid, and 33% Remote job distribution, with an average salary of $110,091 per year, or $52.9 per hour.

Founding AI Engineer

Semble AI

San Francisco, CA • On-site

Full-time

Re-posted 13 days ago


Job description

Job Summary:
Semble AI is transforming the building-system design industry by developing AI agents that automate the design of building systems such as fire, HVAC, plumbing, and security. As a Founding AI Engineer, you will work closely with the founders to build advanced systems that streamline compliance with evolving building codes and enhance the design process.
Responsibilities:
• Work directly with the founders to own and build systems such as vision pipelines that segment rooms, walls, and architectural elements from noisy PDFs/CAD files
• Develop LLM + RAG workflows that interpret building codes and produce compliant designs
• Implement full-stack features across our React/Node/Postgres platform
Qualifications:
Required:
• Strong experience in ML (vision AND LLMs)
• Experience in backend development
• Experience in building AI agents
• Experience in full-stack engineering
• Ability to thrive in fast-moving environments
• Passion for shipping end-to-end solutions
• Commitment to building reliable, production-grade AI systems
• Desire to be early at a YC startup where your work directly defines the company’s trajectory
Company:
Semble AI automates fire and life-safety system design using AI to turn manual workflows into code-compliant processes. Founded in 2025, the company is headquartered in San Francisco, USA, with a team of 2-10 employees. The company is currently Early Stage.