Founding Engineer (API Infrastructure, Insurance FinTech)

Location: San Francisco, CA

Employment Type: Full-time

Work Arrangement: On-site

About the Role

Our client is a venture-backed startup with enormous momentum, building the infrastructure layer for Property & Casualty (P&C) insurance. They are often described as "Plaid for Insurance," aiming to modernize the highly fragmented, analog, and manual workflows of the $2T global P&C industry through a simple, modern API. The company has already grown revenue 3x year-to-date in 2025.

They are seeking two highly autonomous engineers (employee #5 and #6) to play a foundational role. This position involves owning the design and implementation of a robust, API-driven product and helping define the future architecture and company culture.

Responsibilities

Member of Technical Staff - Applied AI / ML Engineer

Location: San Francisco, CA (Union Square)

Employment Type: Full-time

Work Arrangement: On-site 5 days a week

About the Role

Our client is a GenAI-native platform that automates complex tax document processing, serving top accounting firms and wealth management offices. The platform was recently acquired by Thomson Reuters and is operating as a fast-paced, high-growth startup within a larger structure.

They are seeking an exceptional Member of Technical Staff (MTS) focused on ML Product. This is a high-ownership role crucial for scaling their platform to millions of documents, requiring strong fundamental understanding of how to build, measure, and iterate on commercial ML systems for the enterprise.

What You’ll Be Doing

Senior Software Engineer (AI Healthcare Communication)

Location: San Francisco, CA

Employment Type: Full-time

Work Arrangement: Hybrid (4 days/week in-person)

About the Role

Our client is a rapidly growing, well-capitalized healthcare AI company focused on making exceptional healthcare accessible anytime, anywhere. They are building an AI-powered healthcare communication platform that uses voice agents as the first point of contact for medical practices, handling tasks from appointment scheduling to patient triage. The platform has facilitated over 30 million patient interactions and is growing rapidly (10x growth since January 2024).

They are seeking a Senior Software Engineer who is product-minded and passionate about transforming healthcare accessibility. You will be tasked with building and scaling their customizable fleet of GenAI agents (Assort OS) and working with cutting-edge AI through partnerships with companies like OpenAI and Gemini.

What You'll Do

Senior Software Engineer (AI & Logistics)

Location: San Francisco, CA Employment Type: Full-time Work Arrangement: On-site 5 days a week

About the Role

Our client is an AI startup backed by $17 million in funding that is focused on rebuilding the $1 trillion freight marketplace. They are fixing the slow, manual process of matching trucks with jobs by building a vertical AI agent that automates communication (phone calls, texts, and emails) for freight brokers and forwarders.

As an early Senior Software Engineer, you'll have a high-impact role driving the product's evolution. You'll be bringing AI to the transportation industry, owning product decisions, and shaping the core engineering culture. This is a fit for engineers who are excited about logistics, passionate about AI, and driven by great design and ownership.

What You'll Do

Founding Engineer

Location: San Francisco, CA (Union Square area)

Employment Type: Full-time

Work Arrangement: On-site

About the Role

Our client, is an applied AI research lab building high-fidelity agent environments and tooling with the bold thesis of becoming the single global workforce supplier of AI employees for the entire global economy. They are currently focused on conquering the frontiers of planning, memory, and "always-on-behavior" for their agents.

As a Founding Engineer, you will have a high-agency role, working directly with the CEO and founding team. Your contributions will go beyond just code, actively shaping the product, culture, and architecture. You must be prepared to ship fast, experiment, and iterate without heavy process.

What You'll Do

Location: San Francisco, CA

Employment Type: Full-time

On-site: 5 days a week in-office

About the Role

Our client, a high-growth AI company building advanced conversational AI agents for enterprises (with over $231 million in funding and clients like Duolingo and Notion), is seeking a Staff Data Scientist. This role demands deep technical rigor to analyze, test, and apply data across the business.

You'll blend advanced analytical expertise with product acumen to influence strategic decisions at the highest levels, being the primary driver of the experimentation culture.

What You'll Do

Location: San Francisco, CA (Mission District)

Employment Type: Full-time

Work Arrangement: On-site 5 days per week

About the Role

Our client, Automat, Inc., is a rapidly scaling enterprise AI company with $20 million in funding, focused on redefining Robotic Process Automation (RPA) and Intelligent Document Processing (IDP). Their mission is to make teaching AI agents to build automations as easy as showing a colleague the desired workflow.

They are seeking a product-minded Full-Stack Software Engineer to join their small, early-stage team. This is a high-impact role where your contributions will go beyond code, actively shaping the technical direction and culture. You will be responsible for building the robust, foundational product that supports their complex, large-scale customer deployments.

What You'll Do

Location: San Francisco, CA

Employment Type: Full-time

Work Arrangement: On-site (minimum 3 days per week)

About the Role

Our client, a venture-backed company aiming to revolutionize the networking industry by creating a vertically integrated infrastructure provider, is seeking a Model Engineer to join their founding core AI team. This is a high-impact role focused on transforming a market with hundreds of billions in revenue by applying cutting-edge machine learning to internet infrastructure.

You will be responsible for the full lifecycle of model development, from data to production deployment, and will directly collaborate with founders to define technical vision and team culture.

What You'll Do

Location: San Francisco, CA (Union Square)

Employment Type: Full-time

On-site: 5 days a week in-office

About the Role

Our client, an AI company recently acquired by a major industry leader, builds a GenAI-native platform that automates tax document processing, serving top accounting firms and private wealth offices. Their technology achieves high accuracy by turning tens of thousands of pages of complex tax documents into structured data in minutes.

They are seeking an exceptional Member of Technical Staff (Backend) with a desire for outsized responsibility and impact. This engineer will be crucial in building the core systems that deploy their machine learning capabilities and driving architectural choices for their core services.

What You'll Be Doing

Fullstack Engineer (Python, React)

Location: San Francisco, CA

Employment Type: Full-time

On-site: 9-9-6 in-office schedule

About the Role

Our client is an intensely ambitious, hyper-growth AI startup that is completely rebuilding the foundation of the world’s largest industry: Insurance Claims Processing. They achieved six-figure ARR in just three months and raised a highly oversubscribed $3.8 million seed round from top-tier investors. Their team comes from elite global AI labs (Oxford, Cambridge, ETH Zurich).

They are seeking a Fullstack Engineer with a strong backend focus and clear signals of technical excellence. This role is defined by total ownership—you will be expected to ship features end-to-end and solve every problem, from core infrastructure design to direct client integrations for AI use cases.

What You'll Do