Keeper Security, Inc.

Manage, protect and monitor all your organization's passwords, secrets and remote connections with zero-trust security

Senior Software Engineer, Autofill

Full-stack EngineerSoftware EngineerFull TimeRemoteTeam 501-1,000Since 2011Company SiteLinkedIn

Location

California

Posted

18 days ago

Salary

Not specified

Bachelor Degree5 yrs expEnglishJava ScriptJestReactType Script

Job Description

• 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 (WebExtensions, 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

Job Requirements

  • 5+ years of experience in JavaScript and/or TypeScript development
  • Strong experience with React and modern state management patterns
  • 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 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

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)

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