Senior Software Engineer, Autofill

Overview

Keeper Security is hiring a talented Senior Software Engineer, Autofill to join our Browser Extension team. 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 autofill capabilities are used across browsers by millions of people and thousands of organizations globally.

Keeper’s cybersecurity software is trusted globally and is published in 23 languages and sold in over 150 countries. Join a fast-growing cybersecurity company 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 solutions are FedRAMP and State

RAMP Authorized, SOC 2 compliant, FIPS 140-2 validated, and ISO 27001, 27017 and 27018 certified. Keeper deploys in minutes, not months, and integrates with any tech stack to prevent breaches, reduce help desk costs and ensure compliance. 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

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.

• Design, build, and maintain autofill detection and injection systems within Keeper’s browser extension
• Implement and optimize form-field recognition, credential mapping, and autofill heuristics across a wide variety of web architectures
• Ensure compatibility, performance, and reliability across major browsers (Chrome, Edge, Firefox, and Safari)
• Collaborate with the Browser Extension team to integrate autofill logic with existing Keeper APIs, storage, and credential services
• Debug, test, and resolve complex issues in real-world web environments and dynamic single-page applications (SPAs)
• Stay up to date with browser API updates (Web Extensions, Manifest V3) and ensure compatibility across evolving browser platforms
• Participate in code reviews, testing, and continuous improvement efforts to ensure scalability and long-term maintainability of autofill features
• Work closely with QA to automate regression tests and validate autofill behavior across browsers and frameworks

• 5+ years of experience in JavaScript and/or Type Script development
• Strong experience with React and modern state management patterns
• 3+ years of experience working on browser extensions using Web Extensions APIs, Manifest V3, or similar browser frameworks
• Strong knowledge of DOM manipulation, form parsing, and input field detection techniques
• Proven experience building or maintaining autofill, form-detection, or credential-injection systems
• Familiarity with Jira, Jest, and modern frontend development practices
• Experience debugging and profiling browser extensions across multiple browsers
• Strong understanding of browser security models, content scripts, and extension permissions
• Excellent problem-solving skills with the ability to debug and optimize performance in large codebases
• Strong communication skills and ability to collaborate in a remote, cross-functional environment

• Experience with credential or password managers (e.g., Keeper, 1
  
  Password, Dashlane, Bitwarden, Last Pass)
• Familiarity with SPA frameworks (React, Angular, Vue) and how they impact form detection
• Experience optimizing autofill reliability and performance at scale
• Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience

• Medical, Dental & Vision (inclusive of domestic partnerships)
• Employer Paid Life Insurance & Employee/Spouse/Child Supplemental life
• Voluntary Short/Long Term Disability Insurance
• 401K (Roth/Traditional)
• A generous PTO plan that celebrates your commitment and seniority (including paid Bereavement/Jury Duty, etc)

Keeper Security, Inc. is an equal opportunity employer and participant in the U.S. Federal E-Verify program. We celebrate diversity and are committed to creating an inclusive environment for all employees.