Senior Administrative Assistant - Nuclear Projects

Snc-Lavalin; Mississauga; Hybrid; CAD 36,000 - 48,000; Full time

Benefits offered by this job

Hybrid work culture

Flexible benefits

Training & development

Job summary

AtkinsRéalis in Mississauga, ON is seeking an Administrative Assistant to provide senior‑level support across multiple departments, manage calendars, coordinate meetings, arrange travel, and maintain project records with discretion.

The ideal candidate has post‑secondary education or a related business diploma, at least 3 years of administrative experience, and familiarity with Oracle, Concur, SharePoint and document control, plus strong written and verbal communication.

Qualifications

• Post-secondary education or related business diploma/certificate.
• Minimum of 3 years of administrative experience.
• Experience in a consulting firm and/or knowledge of engineering terminology is an asset.
• Experience with Oracle, Concur and SharePoint is an asset.
• Advanced Microsoft Office skills (Word, PowerPoint, Excel, Calendar).

Responsibilities

• Provide comprehensive administrative support across managers, project teams and multiple departments.
• Manage calendars, priorities, and communications, anticipate conflicts and deadlines.
• Coordinate internal and external meetings and events, prepare materials and take minutes.
• Act as liaison with internal/external stakeholders, handle sensitive information with discretion.
• Arrange travel, manage expenses, timesheets, and reporting per policies.
• Maintain accurate project records and knowledge management systems.
• Support special assignments and contribute to operational efficiency.
• Uphold fiscal responsibilities as required.

Skills

Calendar management

Administrative support

Communication

MS Office

Travel arrangements

Discretion & confidentiality

Team collaboration

Documentation & record keeping

Education

Post-secondary education or related business diploma/certificate

Tools

Oracle

Concur

SharePoint

Document Control

Job description

AtkinsRéalis in Mississauga, ON is seeking an Administrative Assistant to provide senior‑level support across multiple departments, manage calendars, coordinate meetings, arrange travel, and maintain project records with discretion.

The ideal candidate has post‑secondary education or a related business diploma, at least 3 years of administrative experience, and familiarity with Oracle, Concur, SharePoint and document control, plus strong written and verbal communication.