Founding Engineer

Role Details

Location: San Francisco, CA Work Model: In-office

About Us

At Effective AI, we're building the future of work. We believe the real frontier for AI is not simple, repetitive tasks, but complex knowledge work that demands expertise and multi-step reasoning. That's why we're building sophisticated AI Teammates designed to master complex workflows and collaborate with human experts. We're starting by tackling the trillion-dollar U.S. Property & Casualty insurance market, a space with intricate processes and a rich data environment perfect for this challenge.

We’ve raised $10 million in seed funding from Lightspeed Ventures & Valor Equity Partners.

Our dedicated team is based in San Francisco and thrives on in-person collaboration to solve these challenging problems.

What You'll Do

As a Founding Software Engineer, you will be a crucial part of our initial team, playing a pivotal role in designing and building our core product from the ground up. You will tackle some of the most significant challenges in agentic AI to develop Teammates capable of handling core insurance functions like underwriting and claims processing.

More specifically, you will:

• Enable long-horizon task completion by building the foundational infrastructure for AI agents to plan and reliably execute multi-step processes over extended interactions.

• Implement nuanced reasoning capabilities, enabling agents to make sound judgments on ambiguous or incomplete data, similar to a human expert.

• Build intelligent, tool-using agents that can select and use a diverse set of external tools—including APIs, databases, web searches, and even Excel-based pricing algorithms—to gather facts and take action.

• Design systems for continuous adaptation and learning, allowing our AI Teammates to learn from feedback and adapt to dynamic conditions like changing regulations or market shifts.

Who You Are

We're looking for an ambitious and creative builder who is excited to tackle hard problems.

• You have a strong foundation in computer science and exceptional problem-solving skills, demonstrated through high-impact projects or prior work.

• You are genuinely passionate about AI and energized by tackling ambiguous challenges from first principles.

• You possess strong coding skills in at least one modern language (e.g., Python, TypeScript, Go).

• You are a collaborative, fast learner who wants to join a small team and have an outsized impact.

• Experience shipping software or familiarity with deep learning frameworks is a significant plus.

Why Join Effective AI?

• Tackle Foundational AI Challenges: Work on cutting-edge problems in agentic AI, tool use, and reliable reasoning that will define the future of work.

• Massive, Tangible Impact: Your work will directly improve efficiency and decision-making in a trillion-dollar industry.

• Founding Team Member: As a key part of our initial team, you'll have significant ownership and play a defining role in our product, culture, and future.

What We Offer:

• Highly competitive salary & equity

• Flexible PTO

• Catered lunches

• Best-in-class medical, dental & vision insurance

• 401k with up to a 4% company match

• Mentorship from experienced founders and access to an elite investor network

• Team building events & happy hours

• Backing from top VCs (Lightspeed, Valor)