Manager, MSC Governance & Operations Controls

Location: Shawnee Mission

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The Magenta Services Center is T-Mobile's multi-tower Shared Services Organization (SSO) spanning HR, Finance, and Accounting operations. This Manager role exists to bring rigor, accountability, and structured assurance to how controls are defined, owned, monitored, and sustained across the MSC, as it scales from foundational delivery into a mature, governed operating model.

This role grows from the compliance discipline that exists among teams to a common framework, governance structures, and operating rhythms that make controls easier to own, evidence easier to sustain, and the overall control environment more transparent and defensible over time. The person who thrives here is a seasoned GBS or Shared Services practitioner who values the day to day rigor the team brings and can add the connective structure that lets that rigor scale without added burden.

You will operate with significant independence, partnering closely with the Sr. Manager of the Magenta Services Center to define the controls governance framework, clarify ownership across service towers, support internal and external audit activities, and help ensure operational and project changes are assessed for control impact before they go live.
** This is a hybrid role (3 days/week in the office) and will be based in Overland Park, KS.
** Why this role exist:
The Magenta Services Center has successfully stood up operations across multiple value streams. What it now needs is a formalized controls governance capability across all Value Streams: a function that knows which controls exist, has a coherent and well informed catalog, knowing whether they are operating effectively, and what happens when gaps or changes arise. This Manager closes that gap, building the infrastructure that turns controls from a compliance obligation into a source of operational confidence and continuous improvement.

Job Responsibilities:

Controls Framework Design & Governance:
Define and maintain the MSC's overarching controls governance framework across all service towers (OTC, STP, RTR, HTR, SET). Establish a structuredcontrols inventory that documents control objectives, control types (preventive, detective, corrective), ownership, frequency, evidence standards, and linkage to process and risk. Ensure the framework is aligned to SOX requirements where applicable and to operational risk standards across non-SOX activities. Maintain the framework as a living document, updated in response to audits, operational changes, and organizational evolution.

Controls Ownership & Accountability:
Establish and govern a clear RACI for controls ownership across the MSC. Distinguish between control operators (those who execute), control owners (those accountable for design and effectiveness), and the central governance function (this role). Drive accountability through structured reporting, escalation paths, and periodic ownership reviews. Ensure that ownership transitions during migrations, restructuring, or role changes are formally managed and documented.

Audit Support & Readiness:
Support as the MSC's primary point of coordination for internal and external audit activities, including SOX, operational audits, and BPO compliance reviews. This role ensures the right owners have documented the right evidence to the right standard,…