Product Engineer (multiple positions)

About DepthFirst AI

We believe that software is the foundation of modern civilization - yet vulnerabilities threaten its integrity, security, and resilience. We are on a mission to solve security.

DepthFirst is building intelligence to detect and remediate critical software vulnerabilities. We are training and scaling security AI agents to discover zero-days vulnerabilities, from large customer codebases to popular open source software.

Our founding team includes expertise in security and LLMs (with technical leaders from DeepMind, Databricks, Square, and Faire). We are looking for strong technical people who are interested in working at the intersection of AI, Security and Infrastructure.

About this role:

We’re seeking an experienced front-end focussed Product Engineer to lead the charge in building the world’s first AI-native platform that autonomously finds and fixes software vulnerabilities in your code. You will work on developing and designing our web app, already serving many large customers, finding and remediating vulnerabilities at scale. You’ll play a central role in driving the product, understanding the user and reimagining how companies do security.

You’re excited about this role because you will…

• Develop and Design delightful AI-first products that solve real challenges. Helping organizations of any size avoid the next big leak

• Drive Web Performance Optimization: You'll take ownership of front-end performance, ensuring DepthFirst's website meets and exceeds industry benchmarks for speed and responsiveness.

• Leverage Cutting-Edge Technologies: Work extensively with Next.js, React, and modern web development practices to create robust, scalable, and performant solutions.

• Work on a Product that Solves a Critical Problem - and we already have large customers using us who have found some eye-opening vulnerabilities within the first few days of using our product.

Qualifications

• 3+ years of professional experience in front-end engineering, with a deep understanding of React and JavaScript/TypeScript, Postgres (Neon).

• Knowledge of Next.js is a bonus.

• Proven experience optimizing large-scale web applications for performance, scalability, and maintainability.

• Expertise in developing reusable UI frameworks, libraries, and tools.

• Familiarity with state management libraries (e.g., Redux, Zustand) and modern CSS frameworks (e.g., Tailwind CSS).

• Strong understanding of web fundamentals: HTTP, browser rendering pipelines, and web performance metrics.

• Attention to detail, product mindset and a desire to build user-centric products

What We Offer

• Competitive Salary with generous equity

• Health and Dental Insurance

• Office lunch (when working out of San Francisco office)