Executive Assistant

Stelumar Advanced Manufacturing Inc.; Mississauga; On-site; CAD 70,000 - 110,000; Full time

Job summary

Stelumar Advanced Manufacturing Inc. is hiring an Executive Assistant in Mississauga, Ontario to support the General Manager and Senior Leadership Team. You will manage calendars, emails, reports, and travel, while ensuring smooth day-to-day office operations and stakeholder liaison.

The role requires 3–5 years of executive support experience, strong communication, discretion, and the ability to adapt to shifting priorities. Competitive base salary and annual bonus program offered.

Qualifications

• Post-secondary education in business/administration required or preferred.
• 3-5 years as an Executive/Administrative Assistant supporting multiple senior leaders.
• Excellent written and verbal communication with strong problem-solving.
• Professional and approachable with leaders, staff, vendors, and partners.
• Strong initiative, judgment, and discretion with confidential information.

Responsibilities

• Manage calendars for the GM and SLT, prioritizing requests and resolving conflicts.
• Manage emails, reports, and internal correspondence.
• Coordinate travel and expense reports for the GM and SLT.
• Take minutes, track action items, and follow up to keep tasks on schedule.
• Coordinate SLT meeting agendas, materials, and logistics.
• Oversee daily office operations and budgets, including vendor relations.

Skills

Executive support

Office administration

Microsoft Office

Communication skills

Discretion with confidential info

Education

Post-secondary education in business/administration

Tools

Microsoft Excel

AI tools familiarity

Job description

Role: Executive Assistant

Location: Mississauga, Ontario

Company: Stelumar Advanced Manufacturing Inc.

Department: Shared Services

Employment Type: Full-Time, Permanent

Reports to: General Manager

Stelumar Advanced Manufacturing Inc. (SAMI or Stelumar) is a technology-driven company dedicated to revolutionizing homebuilding in Canada through advanced modular building solutions. Founded by Canadian entrepreneur Peter Gilgan, founder of Mattamy Homes, Stelumar combines automation, robotics, and AI to modernize construction and help address the housing shortage. With state-of-the-art manufacturing facilities in the Greater Toronto Area, Stelumar is focused on accelerating construction timelines, improving consistency and making housing more attainable. Stelumar produces precision-built walls, floors, and roofing systems, factory-built modular units, and interior cabinetry and millwork at industrial scale. Its development and construction arm, Stelumar Communities, delivers scalable modular housing from planning and design to construction and handover. The team supports low- and mid-rise residential, purpose-built rental, affordable and workforce housing, student housing, hospitality, healthcare-related housing, and institutional developments. Together, Stelumar is delivering housing people are proud of.

For more information, visit Stelumar.com.

What we offer

You will provide administrative support to the General Manager and Senior Leadership Team (SLT) and oversee day-to-day office management. The ideal candidate is proactive, highly organized, and resourceful, and acts with sound judgment and integrity.

What you'll do

• Senior Leadership Team Support
  • Manage calendars for the GM and SLT, prioritizing requests and resolving conflicts
  • Manage emails, reports, and internal correspondence
  • Serve as a point of contact for internal and external stakeholders; prepare materials ahead of meetings
  • Coordinate travel and expense reports for the GM and SLT
  • Take minutes, track action items, and follow up to keep tasks on schedule
  • Act as a liaison for the GM and SLT
• Office Administration & Events
  • Oversee daily office operations so the office is organized, stocked, and running smoothly
  • Manage office supplies, equipment, vendors, and service contracts
  • Act as the main contact for building management, facilities, and workspace needs
  • Support new-hire onboarding (workstations, building access, orientation) with HR and IT
  • Maintain office policies and procedures
  • Track office budgets and process invoices
  • Direct reception and administrative staff, as applicable
  • Coordinate special events (e.g., conferences, offsites, site tours, town halls), including venues, catering, and equipment
  • Prepare and distribute documents and presentations
  • Conduct research as required
  • Liaise with the parent company and corporate offices, including HR and IT
• Build strong relationships with internal and external stakeholders
• Proactively flag, prioritize, and resolve issues where possible
• Coordinate SLT meeting agendas, materials, and logistics
• Support preparations for external meetings
• Support special projects and other duties as required

What you bring

• Post-secondary education in business, administration, or a related field preferred
• 3-5 years as an Executive or Administrative Assistant supporting multiple senior leaders; office administration experience is an asset
• Strong initiative, judgment, and problem-solving skills
• Excellent written and verbal communication skills, including drafting, proofreading, and building presentations
• Strong attention to detail, time management, and multitasking skills
• Proven discretion with confidential information
• Professional and approachable with leaders, employees, vendors, and external partners
• Strong Microsoft Office skills (especially Excel) and eagerness to adopt new tools, including AI
• Experience coordinating office operations, vendors, and administrative budgets
• Adaptable to shifting priorities; occasional travel as required

Compensation

The expected base salary range for this position is $70,000 - $110,000. Actual pay may vary depending on your job-related knowledge, competencies, and skills. We recognize that exceptional situations may fall outside this range, and we encourage all interested candidates to apply.

You are also eligible to participate in Stelumar's annual bonus program which gives you the opportunity to increase your total compensation if business and individual goals are achieved.

Stelumar is committed to providing accommodation for people with disabilities. If you require accommodation through any aspects of the selection process, please notify us on your application and we will work with you to meet your needs.

Stelumar may use artificial intelligence (AI) tools to support our hiring process, including to help screen or assess candidates along the way. These tools work behind the scenes, while people remain at the heart of every hiring decision.

Qualified applicants for this existing vacancy will be contacted directly by the Talent Acquisition team.