Senior Software Engineer, Autofill

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 Strong communication skills

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 Ensure compatibility, performance, and reliability across major browsers (Chrome, Edge, Firefox, and Safari) Collaborate with the Browser Extension team to integrate autofill logic Debug, test, and resolve complex issues in real-world web environments Stay up to date with browser API updates and ensure compatibility Participate in code reviews, testing, and continuous improvement efforts Work closely with QA to automate regression tests