The new posts include 230 in Swansea, South Wales, 130 in Greater Manchester and 40 in Birmingham.
The company said the expansion was in response to growing consumer demand for superfast broadband and next-generation television.
Paul Buttery, Virgin Media’s chief customer and networks officer, said: “We’re pleased we’re able to invest further and offer so many more people the prospect of an exciting and rewarding career at the forefront of next-generation entertainment and communications.
“By creating hundreds of customer-facing roles we’ll be able to meet the sustained appetite for TiVo, already the leading connected TV platform in the country, and superfast broadband alongside ensuring a great experience for all our customers.
“With this expansion Virgin Media will be even better able to support the Government’s ambitions for the country.
“We’re investing in the very communities we serve to ensure all our customers get the experience they expect from us as we power Britain’s digital heartbeat.”
Business Secretary Vince Cable said: “This expansion is good news for Virgin Media and for the hundreds of people who will benefit from these new jobs, which include many highly skilled engineering roles.
“The digital communications industry drives growth and helps us to build a stronger economy. Today’s announcement will also support our ambition to provide faster broadband – in both cities and rural areas – giving more businesses access to the opportunities they need to grow.”
Virgin Media has 14,000 UK employees
Source: Press Association