Senior Administrative Assistant

Location: Ottawa or Toronto (Hybrid)
Language: English essential, both written and spoken
Duration: 1-month contract with potential for extension
Background Check Requirement: Criminal background check and professional references required

About the Opportunity
An organization in the not-for-profit and public sector space is seeking a Senior Administrative Assistant to provide high-level support to a senior executive in a fast-paced, collaborative environment. This role is ideal for someone who thrives on organization, enjoys supporting leadership teams, and takes pride in keeping priorities and operations running smoothly.

In this position, you will play a key role in coordinating schedules, managing travel logistics, tracking deliverables, and supporting important operational initiatives. You’ll work closely with internal stakeholders and contribute to a professional environment where communication, adaptability, and attention to detail are highly valued.

What’s In It for You
• Opportunity to support a senior executive and gain exposure to high-level operations
• Hybrid work model that offers flexibility and balance
• A collaborative and professional environment that values initiative and strong communication
• Exposure to meaningful work within the not-for-profit and public sector space

Your Responsibilities
• You’ll manage a complex calendar and coordinate travel arrangements for a senior executive with frequent travel commitments
• You’ll track deliverables and follow up with stakeholders to ensure projects, meetings, and action items remain on schedule
• You’ll coordinate meetings and provide administrative support that keeps day-to-day operations running smoothly
• You’ll assist with expense claims and invoicing, ensuring travel and operational expenses are submitted accurately within the system
• You’ll collaborate with internal teams to monitor budgets, funding updates, and operational coordination where needed
• You’ll provide general administrative support, including document review and project support as requested

Skills and Qualifications
• 3+ years of relevant senior administrative or executive assistant experience
• Demonstrated experience managing calendars, coordinating travel, and supporting senior leaders
• Strong ability to track deliverables, follow up with stakeholders, and maintain organized workflows
• Experience processing expense claims, invoicing, or working with financial documentation
• Excellent communication skills with the ability to work proactively and independently in a fast-paced environment
• Strong written and verbal communication skills in English

Why Partner with Altis
If you’ve never worked with a staffing agency before, we make it easy. We work with top employers across Canada who have great jobs to fill, each vetted and verified by our team. When you apply for a job with Altis, we get to know you as a candidate and learn what your strengths are. Then, if you’re a solid match, we handle all the logistics, advocating for you as a candidate for the role, providing access to coaching and connecting you directly with the hiring manager. And rest assured, all our services are free of cost for candidates.

We appreciate the time and effort all applicants invest in their submissions. Please note that only candidates shortlisted for this role will be contacted directly. However, your profile will remain under consideration for future opportunities that align with your experience and career goals. All qualified applicants will receive fair consideration for employment. We welcome individuals of all backgrounds, experiences, and identities including those who identify as women, members of racialized groups, Indigenous Peoples, persons with disabilities, and 2SLGBTQIA+ communities. If you require an accommodation, please review our accessibility policy and reach out to our accessibility officer with any questions. Our human recruiters review all applications and always make the final hiring decision. On occasion, we also use AI-assisted tools to help review applications.