Wording used in a new job posting on Microsoft’s Careers website advertising for a new Software Development Engineer to become part of its Windows Phone division has highlighted a new “top secret project” which the Redmond-based company is already touting as “market disrupting”.

The job listing, added to the Microsoft website on Sunday, asks for applicants that want to “create experiences our customers simply can’t live without” to begin work on a new Windows Phone feature set that it hopes to start developing in one month.

So sure are the Windows Phone team, that they describe its own mission as: “GO BIG! DISRUPT THE MARKET!”.

The nature of the new feature is unknown, but with Microsoft readying its Mango update for Windows Phone devices, due to launch in the coming weeks, the team may be looking towards the next firmware upgrade, continuing to innovate the platform since it launched in October 2010.

The full job listing is below, you can also view it on the Microsoft Careers website:

Wish you were part of a team whose charter is to create experiences our customers simply can’t live without? Are you excited when you see a user experience that delights customers? We are a team working on a top secret project inside the Windows Phone division. Our mission…GO BIG! DISRUPT THE MARKET!

We can’t give you many details on this JD, but I can assure you we have a passionate group of engineers charged and ready to take on the challenge. It’s a v1 feature set and we are completing planning in 1 month, so timing is perfect. We are looking for an experienced SDET to play the role of product line customer advocate. In this role you would be on point to work with product planning, design, UX research and the feature team to glue pieces of feature together and build delighting user experiences. As an experienced SDET you will be guiding the team towards the key set of scenarios and technologies we should be using to innovate and go beyond the typical feature testing.

Come make our product sing to customers! It’s a chance to see your work showcased by millions of customers for years to come!