Sr Assistant, Executive

Administrative Support For Senior Executives

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That's how we're UNSTOPPABLE for our employees!

This is not a remote position. T-Mobile is a hybrid work environment requiring work in the office three (3) days per week. The successful candidate will be located in the greater Seattle, Washington area.

Job Overview: This role provides high-level administrative support to senior executives to enhance operational efficiency and strategic coordination. It handles executive schedules, coordinates complex initiatives, and supports cross-functional collaboration within the organization. The role requires digital fluency, independent judgment, and the ability to mentor junior administrative staff. Success is measured by optimized executive time, timely completion of deliverables, and improved administrative processes. The work impacts organizational effectiveness and supports leadership in achieving business objectives and stakeholder engagement.

Job Responsibilities:

• Coordinate executive calendars, meetings, and travel arrangements to optimize time and support strategic priorities
• Organize and maintain administrative systems, databases, correspondence, and project tracking tools to ensure accuracy and accessibility
• Collaborate with project teams to monitor milestones, prepare agendas, presentations, and meeting minutes to support timely deliverables
• Mentor and coach junior administrative staff to promote skill development and effective task delegation
• Support human resources activities including onboarding coordination and team engagement initiatives
• Handle executive communications, budget-related tasks, expense reports, and record management to maintain operational efficiency
• Also responsible for other duties/projects as assigned by business management as needed

Required Education:

• Bachelor's Degree plus 2 years of related work experience OR combination of education and experience deemed equivalent
• Acceptable areas of study include Business Administration, Communications or related field

Preferred Work Experience:

• 7-10 years Executive administrative experience supporting SVPs or equivalent in large organizations

Required Knowledge, Skills and Abilities:

• Budget Management
• Communication
• Diplomacy
• Event Management
• Executive Presence
• Mentorship
• Microsoft Office
• Project Tracking
• Taking Initiative

At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Corporate employees are eligible for a year-end bonus based on individual and/or company performance and which is set at a percentage of the employee's eligible earnings in the prior year. Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance. The incentive component included in the Total Target Cash Earnings Opportunity reflects target performance. Actual earnings included in the Total Target Cash Earnings Opportunity reflect target performance; actual payouts may vary.

T-Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, genetic information, national origin, religious affiliation, marital status, citizenship status, veteran status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law. Discrimination, retaliation or harassment based upon any of these factors is wholly inconsistent with how we do business and will not be tolerated.