Senior Software Engineer, Autofill

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 be responsible for developing and executing automated tests, enhancing test suites, and ensuring the quality of our web applications.

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.

About the Job

As a Senior Autofill Engineer, you’ll 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:

• Design, build, and maintain the autofill detection and injection systems within Keeper’s Browser Extension
• Implement and optimize form-field recognition, credential mapping, and autofill heuristics for a variety of web architectures
• Ensure compatibility 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 (WebExtensions, Manifest V3) and ensure compatibility across evolving browser platforms
• Participate in code reviews, testing, and continuous improvement of autofill features to ensure scalability, performance, and reliability
• Work closely with QA to automate regression tests and validate autofill behavior across browsers and frameworks

Requirements

• 5+ years of experience in JavaScript/TypeScript development
• 5+ years of experience in React & Redux development
• 3+ years of experience working on browser extensions using WebExtensions 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 extensions across multiple browsers
• Strong understanding of browser security models, content scripts, and extension permissions
• Excellent problem-solving skills and the ability to debug and optimize performance in large codebases
• Strong communication skills and ability to collaborate in a remote, cross-functional environment
  
  Preferred Qualifications:

• Experience with credential or password managers (e.g., Keeper, 1Password, Dashlane, Bitwarden, LastPass)
• 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

Benefits

• 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.

Classification: Exempt