Extension Development

Design, develop, and maintain high-quality browser extensions across Chromium-based browsers (Chrome, Edge), Firefox, and Safari.

Implement extension features that handle sensitive operations, including authentication monitoring, password management, and AI platform monitoring, with security and privacy as first principles.

Ensure cross-browser compatibility, optimal performance, and resilience against the constant churn of browser API and web platform changes.

Technical Design & Architecture

Own the technical architecture of the extension: content script / service worker boundaries, messaging patterns, state management, data pipelines back to the platform, and update/release strategy.

Lead technical design for hard problems — turning ambiguous product goals into well-reasoned designs, prototypes, and phased delivery plans.

Author design documents, run design reviews, and establish engineering standards and patterns the whole team can build on.

Mentor other engineers through code review, pairing, and design collaboration, raising the overall technical bar of the team.

Authentication & Identity Expertise

Apply deep knowledge of how authentication actually works on the web — OAuth 2.0 /OIDC flows and grant types, SAML and SSO, session and token lifecycles, passkeys, and MFA — to detect and interpret identity events happening in the browser.

Reason about the browser security model (site isolation, CSP, permissions, cookies and storage partitioning) and its implications for what the extension can safely and reliably observe.

Senior Software Engineer - Browser Extensions

Responsibilities

Qualification

Preferred

Benefits

Company

Nudge Security

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