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This role is primarily onsite, with the opportunity to work remotely on Fridays following the completion of the training period. Brightstar is seeking a highly organized and proactive Admin Assistant III to provide comprehensive administrative support at our Sacramento site. The ideal candidate is a strong problem-solver with exceptional attention to detail, excellent communication skills, and experience thriving in a fast-paced office environment. This role requires the ability to manage competing priorities, coordinate complex schedules, and meet changing deadlines while supporting senior leaders and cross-functional teams.
Job Responsibility:
Process daily, weekly, and monthly customer invoicing with a high level of accuracy and timely turnaround
Perform data entry across multiple Excel spreadsheets and SAP systems
Scan, copy, and manage sensitive and confidential documentation
Manage Office PCard expenses, including monthly reconciliation and ensuring compliance with purchasing policies
Oversee the Purchase Order (PO) process, working directly with vendors to establish POs, provide invoice payment details, and ensure accurate billing
Request vendor quotes as needed
Develop and maintain expert-level knowledge of MediusFlow to properly code and route invoices for approval
Coordinate and schedule travel, meetings, and appointments across multiple time zones
Manage complex calendars using sound judgment to optimize cadence and meeting effectiveness
Prepare meeting agendas, presentations, and logistics
support recurring staff meetings and annual staff events
Draft written communications, reports, and other materials as required
Support office management activities, including ordering supplies, catering, petty cash management, visitor badge access, staff lunches, and license renewals
Provide administrative support to Human Resources, including onboarding, offboarding, and HR-related correspondence
Build a strong understanding of business priorities to provide effective support to the General Manager and leadership team
Serve as a liaison and proactive problem-solver across teams
Support Field Services with Purchase Order creation and order-related information
Participate in projects addressing departmental or organizational initiatives
Perform additional duties as assigned
Requirements:
Advanced proficiency in Microsoft Office (Outlook, Word, PowerPoint, Excel)
Prior experience in an office-based administrative support role
Highly organized, detail-oriented self-starter with strong follow-through
Demonstrated ability to manage multiple projects simultaneously in a dynamic environment
Excellent written and verbal communication skills
Strong interpersonal skills with the ability to work effectively across all levels of the organization
Positive, proactive mindset with a strong sense of urgency and accountability
Ability to exercise independent judgment with minimal supervision
Proven ability to anticipate issues and take initiative to resolve them