Senior Administrative Assistant

Vertex Inc.•Boston, MA

2d•$39 - $58•Hybrid

About The Position

The Senior Administrative Assistant provides high-level administrative and operational support to leaders within Commercial Manufacturing & Technical Operations (CMTO). The role enables efficient execution of CMTO priorities by managing complex logistics, supporting cross-functional coordination, and ensuring seamless day-to-day operations. This position plays a critical role in enabling leadership effectiveness, driving organizational alignment, and supporting key business priorities across CMTO.

Requirements

Proficiency in Microsoft Office (Outlook, Word, PowerPoint, Excel)
Strong organizational and time management skills with ability to manage competing priorities
Experience supporting complex, cross-functional teams in a fast-paced environment
High attention to detail and commitment to quality
Strong communication skills and executive presence
Ability to operate with discretion and maintain confidentiality
Typically requires 2+ years of administrative experience or the equivalent combination of education and experience, preferably supporting senior leaders or complex teams.
Typically requires high school or secondary school education.

Nice To Haves

Familiarity with systems such as Concur, SharePoint, and procurement tools is preferred

Responsibilities

Manages complex calendars for CMTO leaders, including prioritization of meetings aligned to business criticality across manufacturing, supply chain, and technical operations
Coordinates internal and external meetings, including governance forums, offsites, and cross-functional sessions; manages logistics, materials, and real-time support
Supports CMTO governance and reporting by aggregating inputs, tracking deliverables, and preparing leadership-ready materials
Prepares and edits presentations and communications for senior leaders, ensuring alignment to CMTO priorities and executive standards
Manages travel arrangements, expense reporting, and coordination of team events and leadership offsites
Partners across CMTO and support functions (HR, Finance, Procurement) to ensure seamless execution of administrative and operational processes
Processes purchase orders, invoices, and vendor agreements in accordance with Vertex policies
Supports onboarding of new team members and ensures consistent, high-quality onboarding experience within CMTO
Maintains strong relationships with site operations, facilities, and vendors to ensure efficient office operations
Handles sensitive and confidential information with discretion, particularly related to strategic CMTO initiatives