Welsh, who has 12 years' experience working in marketing in the UK and US, joins the firm from FormScape Software, where he was director of global product marketing.
At Mailtrack, Welsh will be responsible for developing the firm's sales and marketing.
Guy Marson, Mailtrack's managing director, said: "Ray has an impressive track record of developing sales and marketing teams into highly efficient and successful operations. We are excited to have Ray onboard to propel Mailtrack forward to a market leading position."
Mailtrack's digital expertise includes email marketing, web, newsletters, online coupons, RSS, SMS/MMS, blogs and search engine marketing and optimisation.
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