I have been working in Big Data since last 1 year. I have worked as a PM, QA Architect and software developer in different projects.
Q&A for professional and enthusiast programmers
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for professional programmers interested in conceptual questions about software development
Q&A for computer enthusiasts and power users
Q&A for meta-discussion of the Stack Exchange family of Q&A websites