T-Mobile US revamped its management suite, consolidating technology work under long-time executive John Saw and transitioning leadership of its Business organization from Callie Field to former Deutsche Telekom (DT) financial executive André Almeida.

The technology change has Saw immediately taking on the expanded role of overseeing all of T-Mobile US’ network team. This will add “president of technology” to his current CTO title, while removing “EVP of advanced and emerging technologies.”

Saw is a long-time network technology executive and has held various network technology roles at T-Mobile US since coming over as part of the carrier’s Sprint acquisition. This includes previously working alongside current T-Mobile US CEO Mike Sievert at wireless broadband provider Clearwire. Sievert has also been rumored to be leaving T-Mobile US.

T-Mobile US, in a Securities and Exchange Commission (SEC) filing, explained that Saw “has been instrumental in the development of the company’s 5G network, including the introduction of new advanced network technologies and the deployment of previously underutilized spectrum.”

Saw’s new title addendum comes as Ulf Ewaldsson, who had held that title, has abruptly left the carrier. The SEC filing notes that Ewaldsson “is retiring after leading the build-out of the Company’s 5G network following the Sprint merger.”

Ewaldsson had an extended career at Ericsson before joining T-Mobile US in 2019 as SVP of technology transformation. Ewaldsson was named president of technology in early 2023, having been tapped to replace its long-time network technology head Neville Ray.

The technology move comes on the heels of T-Mobile US investing heavily in fiber-based operations and recently acquiring rural wireless operator UScellular. The moves also come as part of a broader shift happening as convergence competition is heating up across the telecommunications space.

Business busyness

Field is departing T-Mobile US on September 30, after nearly 22 years at the carrier. Field started as a sales representative and was eventually named president of T-Mobile Business Group, and will remain as a “strategic advisor” until March 31, 2026.

Field in a LinkedIn post explained that the move was to “begin a new chapter.”

Almedia had been a member of T-Mobile US’ board of directors since mid-2023, having previously served in various financial roles at DT, which is a majority owner of T-Mobile US. Almedia’s new role is as president of growth and emerging businesses, overseeing T-Mobile US’ broadband, T-Ads, financial services, enterprise, and government businesses.

T-Mobile US recently signed a deal with cable providers Comcast and Charter Communications that provides them access to T-Mobile US’ wireless network through a mobile virtual network operator (MVNO) model targeted at the small- and mid-sized (SMB) enterprise market segment.

Sievert had explained that this market includes enterprises with less than 1,000 wireless lines and is a segment T-Mobile US has “little exposure today.”

“The deal focuses our partners in the exact areas that would drive incremental revenue, because our strongest T-Mobile-branded growth comes, on the one hand, from the very smallest businesses transacting at retail, where we already compete with cable, and on the other hand from large enterprises above 1,000 lines, which are not included in the deal,” Sievert said. “So while it's going to take some time for this to grow into something meaningful, I'm super excited about their capabilities to generate growth in the SMB sector in a way that will be truly incremental for T-Mobile.”