Senior Software Architect, Browser Extension Platform

Senior Software Architect, Browser Extension PlatformRemote, USKeeper Security is hiring a Senior Software Architect to provide technical leadership for our Browser Extension team and help shape the architecture of one of Keeper's most widely used client experiences. This is a 100% remote position, with an opportunity to work a hybrid schedule for candidates based in the Chicago, IL or El Dorado Hills, CA metro areas.Keeper's cybersecurity software is trusted by millions of people and thousands of organizations globally. Keeper is published in 23 languages and sold in over 150 countries. Join one of the fastest-growing cybersecurity companies and help define the technical foundation for secure, high-performance browser experiences used by customers around the world.About KeeperKeeper Security is one of the fastest-growing cybersecurity software companies that protects thousands of organizations and millions of people in over 150 countries. Keeper is a pioneer of zero-knowledge and zero-trust security built for any IT environment. Its core offering, KeeperPAM®, is an AI-enabled, cloud-native platform that protects all users, devices and infrastructure from cyber attacks. Recognized for its innovation in the Gartner Magic Quadrant for Privileged Access Management (PAM), Keeper secures passwords and passkeys, infrastructure secrets, remote connections and endpoints with role-based enforcement policies, least privilege and just-in-time access. Learn why Keeper is trusted by leading organizations to defend against modern adversaries at KeeperSecurity.com.About the JobAs a Senior Software Architect for Keeper's Browser Extension team, you will define and guide the architecture of secure browser-based experiences across Chrome, Edge, Firefox, Safari and other supported platforms.This is a highly hands-on technical leadership role focused on application architecture, browser extension frameworks, security, performance and cross-platform reliability. You will work closely with Engineering, Product, Security, QA and UX teams to solve complex technical challenges, establish scalable design patterns and guide the long-term evolution of Keeper's browser platform. You will remain close to the code while providing architectural direction across the team, ensuring that new capabilities are secure, maintainable and aligned with Keeper's zero-knowledge security model.ResponsibilitiesDefine and drive the technical architecture and long-term direction of Keeper's browser extension platformLead architectural design for complex browser-based features, shared services and cross-platform capabilitiesDesign scalable solutions using JavaScript, TypeScript and modern web application technologiesGuide architecture across Chrome, Edge, Firefox, Safari and other supported browser environmentsEstablish patterns for secure communication between browser extension components, web applications, backend services and native integrationsLead technical decisions involving extension lifecycle, background services, content scripts, messaging, storage and browser APIsEnsure architectural decisions align with Keeper's zero-knowledge and zero-trust security principlesIdentify and address performance, memory, reliability and scalability challenges across browser environmentsGuide migration and modernization initiatives as browser extension standards and platform capabilities evolvePartner with Product and UX teams to translate complex product requirements into scalable technical designsCollaborate with Security teams on threat modeling, secure design and remediation of security-sensitive browser functionalityLead architecture reviews, design reviews and technical standards across the Browser Extension engineering teamMentor senior engineers and help raise engineering quality, architecture discipline and technical decision-making across the teamWork closely with adjacent Vault, Desktop, Mobile and backend teams where functionality or architecture overlapsUse AI-assisted development tools such as Claude, GitHub Copilot or similar platforms to improve architecture research, prototyping, debugging, code analysis, documentation and engineering efficiencyRequirements10+ years of professional software engineering experience with true full-stack development expertise spanning databases, backend services, APIs, infrastructure and modern user interfacesDemonstrated 0-to-1 architecture experience designing and delivering complex software systems from initial concept through productionStrong knowledge of software architecture and object-oriented design patterns, including common Gang of Four design patternsDeep understanding of performance engineering, including profiling, load testing, bottleneck analysis and real-time debugging across the full application stackExperience designing highly available, scalable systems and evaluating tradeoffs between centralized and decentralized architecturesStrong understanding of distributed systems, microservices, serverless architectures and event-driven application designExperience with cloud-native technologies and platforms, including AWS, Lambda, Docker and KubernetesStrong understanding of database architecture and data modeling across transactional systems, sharded or horizontally scaled databases and analytical or warehouse platformsExperience designing secure authentication, authorization and identity architectures, including IAM, CIEM and least-privilege access conceptsStrong knowledge of web and application security concepts, including CORS, OWASP guidance and secure software development practicesExperience with static analysis, code quality or application security tooling such as SonarQube, Checkmarx or similar platformsStrong understanding of modern software development methodologies, CI/CD practices, automated testing and release engineeringDemonstrated ability to make sound architectural tradeoffs across performance, security, scalability, reliability, maintainability and delivery speedAbility to troubleshoot complex issues across database, backend, infrastructure, network and UI layersProven ability to lead architecture discussions, influence technical direction and mentor senior engineers without relying on formal people-management authorityAbility and willingness to use AI-assisted tools such as Claude, GitHub Copilot or similar platforms to support architecture research, prototyping, debugging, code analysis and technical documentationBachelor's degree in Computer Science, Engineering or a related field, or equivalent practical experiencePreferred QualificationsDeep experience with modern browser applications, browser extensions or client-side platform architectureExperience building or integrating enterprise security platforms in areas such as IAM, CIEM, privileged access management or endpoint securityFamiliarity with enterprise product categories such as GRC, Integrated Risk Management (IRM), SCADA or other specialized security and operational platformsFamiliarity with high-scale SaaS, security-sensitive or zero-trust application architecturesExperience with compliance and security frameworks such as ISO 27001, SOC 2 and GDPRFamiliarity with accessibility standards such as WCAGExperience with product analytics platforms such as Google Analytics 4 or similar technologiesFamiliarity with modern data and analytics platforms such as DatabricksExperience with machine learning, AI-enabled products, computer vision or reinforcement learning workflowsExperience integrating native applications, desktop software or endpoint components with browser or web platformsBenefitsMedical, Dental & Vision (inclusive of domestic partnerships)Employer Paid Life Insurance & Employee/Spouse/Child Supplemental lifeVoluntary Short/Long Term Disability Insurance401K (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: ExemptKeeper Candidate Privacy NoticeThis notice explains how Keeper Security processes your personal data during recruitment. Depending on the role and location, the Controller of personal data (the organization responsible for determining why and how personal data is processed) will be Keeper Security Inc. (US), Keeper Security EMEA Ltd. (Ireland), or Keeper Security APAC K.K (Japan).1. Data We CollectInformation You provide:Contact details, CV/resume, cover letterEmployment history, qualifications, work eligibilityApplication responses and uploaded documentsInformation We generate:Interview notes, assessments, communicationsScheduling information Keeper Security