Assistant Site Supervisor / Site Supervisor
Location: King City, Ontario (Custom residential project ~55,000 sq ft)Salary Range: CAD 70,000 – 100,000

About G.E.S. Construction Ltd.
Founded in 1986, G.E.S. Construction Ltd. has been building luxury custom homes across southern and central Ontario. Known for unmatched integrity, attention to detail, and craftsmanship, G.E.S. stands out in high-end custom home construction and historical restoration. President Greg Seligman, with over 40 years in construction, remains personally involved in every project.

The Project
You'll be supporting a major residential build in King City

• There are multiple buildings, all part of the project, being worked on simultaneously
• This is a high-profile custom project that emphasizes collaborative, top-tier execution.

Key Responsibilities

• Assist Jeremy (site super) and Jack (PM) in organizing and coordinating construction activities across all structures on-site.
• Order and manage the delivery of materials, ensuring adherence to schedule and budget.
• Supervise trade contractors and subcontractors—facilitating their coordination with architectural, structural, mechanical, and interior design teams.
• Oversee site administration, including documentation, inspections, reporting, and quality control.
• Support project delivery while maintaining G.E.S.'s high standards of craftsmanship and client satisfaction.
• Communicate regularly with the project team to align schedules, resolve issues, and execute plans effectively.
• Provide operational support—minimizing tool-based work, maximizing strategic supervision.

Qualifications & Experience

• Proven experience in residential construction supervision, ideally for large-scale custom homes.
• Strong organizational skills and experience managing material procurement.
• Excellent communication and coordination abilities across various trades and disciplines.
• Familiarity with construction documentation, quality inspections, and on-site problem-solving.
• Commitment to high-quality standards, attention to detail, and a collaborative mindset.
• Ability to work effectively under the leadership of Jeremy and alongside other supervisors.

Why Join G.E.S. Construction?

• Work with seasoned industry leaders like Greg Seligman—whose personal involvement and reputation set the gold standard
• Be part of a meticulous, design-driven culture that values craftsmanship, client service, and excellence.
• Grow within a supportive, high-caliber team committed to delivering exceptional custom homes.