Founding Fullstack Engineer

Foundry; United States; Remote; USD 80,000 - 150,000; Full time

Job summary

An innovative company is seeking a Founding Fullstack Engineer to revolutionize browser automation. You will be at the forefront of developing a cutting-edge simulation and evaluation platform, collaborating with top-tier ML and RL specialists. This role offers the chance to influence key technical decisions and shape the future of browser agents, transitioning them from unstable projects to reliable enterprise solutions. If you're passionate about tackling real-world challenges and pushing the boundaries of AI, this opportunity is perfect for you.

Qualifications

• Experience in developing scalable applications and simulations.
• Strong understanding of AI, ML, and RL principles.

Responsibilities

• Architect backend systems for simulating browser interactions.
• Design dashboards to visualize agent performance.

Skills

Fullstack Development

Machine Learning (ML)

Reinforcement Learning (RL)

Backend Architecture

User Interface Design

Education

Bachelor's Degree in Computer Science

Master's Degree in AI/ML

Tools

Python

JavaScript

React

Node.js

Job description

Browser agents are broken—and whoever fixes them will shape the next decade of software.

Today, even the best browser agents from labs like OpenAI, Anthropic, and Google fail over 80% of real-world tasks, often taking three times as long as humans to complete simple actions. Foundry is addressing this by building the first robust simulator, RL training environment, and evaluation platform designed specifically for browser agents. Historically, simulation environments and standardized benchmarks were critical in advancing self-driving cars (e.g., Waymo Sim, KITTI) and LLMs (e.g., HELM, MMLU). We're applying this proven method to browser automation, enabling accurate benchmarking, rapid iteration, and real-world reliability.

For example, OpenAI could use Foundry to build a perfect replica of DoorDash's website, enabling them to run millions of ordering tests without ever touching real-world complexities like CAPTCHAs, payments, or anti-bot measures. This approach lets them clearly pinpoint why agents fail, rapidly iterate, and dramatically speed up agent improvements. Our mission is simple but ambitious: transform browser agents from unstable research projects into robust solutions enterprises can trust.

We’re a technically rigorous team of ML practitioners from Scale AI, committed to impactful engineering and groundbreaking products. If you're an exceptional engineer eager to tackle real-world challenges at the cutting edge of AI, ML, and RL, Foundry is your next opportunity.

As a Founding Fullstack Engineer, you'll build critical systems and user experiences powering Foundry’s web simulation and evaluation platform. You'll collaborate closely with ML and RL specialists, influencing key technical decisions and directly shaping our product’s future.

What You’ll Do

• Develop Scalable Simulations: Architect backend systems capable of accurately simulating diverse browser interactions at scale.

• Create Actionable Dashboards: Design intuitive interfaces that clearly illustrate agent performance, successes, and failures.

• Collaborate at the AI Frontier: Work directly with ML and RL researchers to incorporate cutting-edge methods into robust production systems.

• Influence Product Direction: Actively shape Foundry’s strategic roadmap, technology choices, and engineering culture.