Brendan is responsible for architecture and the technical direction of Mozilla. He is charged with authorizing module owners, owning architectural issues of the source base and writing the roadmap that outlines the direction of the Mozilla project.
Brendan created JavaScript, did the work through Navigator 4.0, and helped carry it through international standardization. Before Netscape, he wrote operating system and network code for SGI; and at MicroUnity, wrote micro-kernel and DSP code, and did the first MIPS R4K port of gcc, the GNU C compiler.