Senior Administrative Assistant

Marsh McLennan; United States; Hybrid; USD 36,968 - 46,210; Full time

Benefits offered by this job

Professional development opportunities

Inclusive culture

Career opportunities

Job summary

Guy Carpenter in Toronto, ON, is seeking a Senior Administrative Assistant for a hybrid role requiring in-office presence at least three days per week. The role supports travel and expense processes for colleagues in a fast-paced sales environment, with calendar management for senior staff and occasional client interactions.

Responsibilities include arranging complex travel, coordinating meetings across U.S.

Qualifications

• Minimum 5+ years of administrative experience with calendar management and travel arrangements.
• Proficient in Microsoft Office, especially Excel and PowerPoint; able to manage multiple priorities.
• Experience with Zoom and Microsoft Teams; ability to maintain confidentiality.

Responsibilities

• Arrange travel and create itineraries, coordinating with travelers and colleagues.
• Maintain senior calendars and coordinate meetings across U.S. time zones.
• Prepare and submit expense reports following corporate policies.
• Handle general admin duties—office supplies, vendor coordination, and events.
• Create/edit documents in PowerPoint, Excel, and Word per MMC style guidelines.
• Collaborate with Broking Support Services leadership to drive process improvements.

Skills

Administrative experience

Outlook calendar management

International travel arrangements

Expense management

Event planning

Confidentiality

Strong communication

Education

Bachelor’s degree

Tools

Microsoft Office Suite

Excel

PowerPoint

Zoom

Microsoft Teams

Job description

Guy Carpenter is seeking a talented individual to join our team as a Senior Administrative Assistant in Toronto, ON. This hybrid role requires working at least three days a week in the office.

The Senior Administrative Assistant provides travel and expense support for several colleagues in a fast‑paced sales environment, utilizes independent judgment, and proactively solves problems. Responsibilities include maintaining calendars for senior colleagues, occasional client interactions, and assisting with office responsibilities while operating with limited oversight and escalating complex requests to management.

Responsibilities

• Arrange travel accommodations, prepare itineraries, and coordinate group travel events while compiling necessary travel documents and communicating plans with relevant individuals.
• Facilitate meetings and teleconferences, providing timely updates and maintaining availability across U.S. time zones, including occasional overtime for unexpected traveler issues.
• Prepare and submit expense reports in compliance with corporate T&E policies, securing missing receipts and adhering to payment timelines to avoid late charges.
• Perform general administrative duties, including ordering office supplies, coordinating with vendors, and organizing office moves and visitor arrangements.
• Edit and create documents in PowerPoint, Excel, and Word, ensuring adherence to MMC’s style guidelines while tracking expenses within the office or regional reporting mechanisms.
• Collaborate with Broking Support Services leadership to identify and implement innovative improvements in processes, consistency, and efficiency across the region.

Qualifications

• High School Diploma with 5+ years of administrative experience, including Outlook calendar management, international travel arrangements, and expense management.
• Proficient in Microsoft Office Suite, especially Excel and PowerPoint, with the ability to manage multiple priorities while keeping stakeholders informed.
• Strong experience with event planning, including meeting catering and external events.
• Resourceful, proactive, and highly organized, with strong communication skills, experience using Zoom and Microsoft Teams, and the ability to maintain confidentiality.

Preferred Qualities

• Bachelor’s degree

Benefits

• Professional development opportunities, interesting work, and supportive leaders.
• Vibrant and inclusive culture that allows impact on colleagues, clients, and communities.
• Range of career opportunities and benefits to enhance well‑being.

Position type: Replacement.

Hybrid work expectation: All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week.

EEO Statement: Marsh is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law. In accordance with the Accessibility for Ontarians with Disabilities Act, 2005, Marsh will provide a reasonable accommodation to employees and prospective employees to the point of undue hardship upon request and as required in respect of the individual’s particular restrictions and limitations. If you require a specific accommodation because of a disability or medical need, please contact [e-mail].