The most recent organizational shift announced by T-Mobile USA CEO Philipp Humm to his employees this week will result in a net loss of 350 jobs, the company says today. It had been previously reported that some 900 positions will be lost — that's still correct, but there will be another 550 new hires in the Puget Sound area to "support the needs of the business and strategic opportunities." T-Mobile also points out that none of this week's moves will affect technicians, customer service representatives (beyond those job cuts previously announced), or in-store sales reps.

The restructuring comes as Humm tries to right the T-Mobile ship, which continues to lose contract customers — though it recorded a modest increase in subscribers last quarter on the strength of its prepaid offerings — and seeks both funding and spectrum to roll out a nationwide LTE network.

Here's T-Mobile's full statement on the matter:

This week, T-Mobile is communicating to employees a new organizational structure that will enable us to react with greater speed and effectiveness to customer and market opportunities, that aligns our costs with our revenue realities, and that better positions T-Mobile to return to growth. As a result of this restructuring, some positions are being eliminated while hundreds of new positions are being created.

This restructuring effort will result in 350 net job reductions. While approximately 900 positions are being eliminated as a result of these changes; T-Mobile will move quickly to hire an additional 550 positions in 2012 to support the needs of the business and strategic opportunities. The majority of the new positions will be located in the Puget Sound area. These 550 new positions are in addition to the 1000 new B2B sales representatives T-Mobile plans to hire in the coming years as we aggressively pursue that opportunity.

Employees who are affected by this restructuring are encouraged to apply for openings that suit their qualifications. The changes being communicated this week do not affect technicians in engineering, customer service representatives in our 17 remaining call centers, or front-line retail employees in corporate-owned T-Mobile stores.