Product Engineer
SalaryNo pay range posted
LocationSan Francisco
Work modeon-site
Typefull-time
SeniorityMid
Experience3+ yrs
DepartmentEngineering
EquityIncluded
Company size51–200 people
PostedOct 23, 2025 · 11mo ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
3+ years of professional experience in front-end engineering
Deep understanding of React and JavaScript/TypeScript
Deep understanding of Postgres (Neon)
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
Knowledge of Next.js is a bonus
Skills
React
JavaScript
TypeScript
Postgres
Neon
Next.js
Redux
Zustand
Tailwind CSS
Benefits
Health insurance
Dental insurance
Vision insurance
Equity
Meal provision
About depthfirst
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 across large customer codebases and popular open source software.
Our founding team includes deep expertise in data, infrastructure, 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 focused 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.
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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.
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Leverage Cutting-Edge Technologies: Work extensively with Next.js, React, and modern web development practices to create robust, scalable, and performant solutions.
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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
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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 meaningful equity
•
Health, Vision, and Dental Insurance
•
Office lunch and dinner (when working out of San Francisco office)
Legal
depthfirst is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.
To all recruitment agencies: depthfirst does not accept agency resumes. Please do not forward resumes to depthfirst employees. depthfirst is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.