Walker will be responsible for driving Thunderhead's expansion and growth in the EMEA and Asia markets and brings more than 20 years of senior management, sales and marketing experience with a number of global technology leaders. He will play a key role in the company's aggressive growth plans and will report directly to Thunderhead CEO, Glen Manchester.

"Phil has a proven track record in managing high growth businesses and over the years has demonstrated his ability to achieve great results. We have set ourselves ambitious targets for growth over the next three years and Phil is the man to spearhead this growth in the EMEA and APAC markets," said Thunderhead CEO, Glen Manchester. "This is a very exciting time for Thunderhead and I am delighted to welcome him to the role."

Most recently, Walker was SVP and COO of Capgemini Consulting and last month was nominated into the "Powerlist 2009" in a ceremony at 10 Downing Street. During his time at Capgemini, he led significant projects in Shell, DWP, TfL and the NHS. Prior to that, he held senior roles at Xerox, Dell and IBM.

"This is a very exciting opportunity for me," said Phil. "At a time when many companies are bedding down and adopting a cautious approach to their markets, Thunderhead is bucking the trend with increased revenue growth, a strong customer pipeline and continued product innovation. I believe there is huge potential for Thunderhead and look forward to building upon the tremendous momentum the company has generated in recent years."

CEO Glen Manchester commented that the appointment is part of a global expansion plan. "We are expanding our team, at all levels, to meet the demands of organizations that want to transform the customer experience they provide with personalized, multi-channel communications. At the same time, we are helping companies reduce costs and generate top line revenue benefits.