This role is ideal for a Senior Frontend or Full-Stack Engineer with at least 5 years of experience who specializes in the niche world of browser extensions. Yo
Work type: remote
Location: Remote, US
Type: Full-time
This role is ideal for a Senior Frontend or Full-Stack Engineer with at least 5 years of experience who specializes in the niche world of browser extensions. You should have a deep mastery of JavaScript/TypeScript and React, but the "secret sauce" for this position is a sophisticated understanding of the DOM, Manifest V3, and how to programmatically interact with web forms across diverse architectures. The role offers the flexibility of being 100% remote within the U.S., though local candidates in El Dorado Hills, CA, have a hybrid option. You’ll be joining a high-growth cybersecurity firm where your work on "autofill heuristics" directly impacts millions of users. The benefits package is comprehensive, featuring 401k matching, a generous PTO plan that scales with seniority, and employer-paid life insurance. **You might be a good fit if you...** * Have 3+ years of specialized experience building browser extensions (Chrome, Safari, Firefox). * Are an expert at DOM manipulation and navigating complex single-page applications (SPAs) to detect and fill form fields. * Stay current with evolving browser standards like Manifest V3 and WebExtensions APIs. * Enjoy the challenge of "reverse-engineering" how various websites structure their login flows to ensure seamless credential injection.
Description
Keeper Security is hiring a talented Senior Software Engineer, Autofill to join our Browser Extension team. Join a dynamic and innovative group that’s building the intelligence behind Keeper’s autofill capabilities across browsers used by millions of people and thousands of organizations globally. This is a 100% remote position with an opportunity to work a hybrid schedule for candidates based in the El Dorado Hills, CA metro area.
Keeper’s cybersecurity software is trusted by millions of people and thousands of organizations, globally. Keeper is published in 23 languages and is sold in over 150 countries. Join one of the fastest-growing cybersecurity companies and help design and build reliable, scalable autofill systems while partnering with QA to ensure high-quality releases across browsers.
About Keeper
Keeper Security is transforming cybersecurity for organizations globally with zero-trust privileged access management built with end-to-end encryption. Keeper’s cybersecurity solutions are FedRAMP and StateRAMP Authorized, SOC 2 compliant, FIPS 140-2 validated, as well as ISO 27001, 27017 and 27018 certified. Keeper deploys in minutes, not months, and seamlessly integrates with any tech stack to prevent breaches, reduce help desk costs and ensure compliance. Trusted by millions of individuals and thousands of organizations, Keeper is the leader for password, passkey and secrets management, privileged access, secure remote access and encrypted messaging. Learn how our zero-trust and zero-knowledge solutions defend against cyber threats at [KeeperSecurity.com](http://keepersecurity.com).
About the Job
As a Senior Autofill Engineer, you will be responsible for designing, implementing, and maintaining Keeper’s browser-based autofill systems. You will own the logic that detects, interprets, and fills login and credential forms across complex web applications and browsers. Your work will directly enhance the speed, accuracy, and reliability of Keeper’s autofill experience for users across Chrome, Edge, Firefox, and Safari extensions.
Responsibilities