Responsibilities: Working with browser internals to produce a more secure web experience Understand semantics of HTTP, HTML documents, web storage, rendering and web security models to design and implement browser micro-virtualization software. Must be comfortable in working in a fast paced environment that iterates and evolves rapidly. Qualifications: (Required) Extensive programming experience in C++ and/or Objective-C Knowledge of one or more of the leading browsers (IE, Chrome, Firefox, or Safari) and their architecture and internals. Software development experience essential. BS in Computer Science or equivalent required. Preferred: In-depth knowledge of HTTP, DOM, Javascript engines, plugins, etc. and their operation. Knowledge of Trident, WebKit, Gecko, etc. Contributions to WebKit, Chromium, Mozilla or other browser components. We are a pre-IPO company with amazing growth expectations and the opportunity for significant financial rewards. For your talent and expertise we offer truly competitive salaries, stock options and 401(k). Paid medical benefits for you and your family, casual dress, flexible work environment and time off for Friday team lunches, plus snacks and drinks 24/7.