Senior Lab Manager

Tetra Tech is adding a Senior Lab Manager to our Arctic Engineering team based in Yellowknife, NT
. The successful candidate must be located in Yellowknife or willing to relocate.

This is an excellent opportunity for an experienced materials-testing professional to lead laboratory operations, support field programs, oversee quality‑control activities, and provide technical guidance to laboratory and field staff throughout the Northwest Territories and Nunavut.

At Tetra Tech, we are Leading with Science™ to solve the world’s most complex challenges. Our industry‑leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting‑edge solutions in water, environment, energy, and international development.

Our work has improved more than 500 million lives around the world.

Join Tetra Tech to make a real difference. Our work leverages cutting‑edge technologies, advanced analytics, and the expertise of world‑class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

The salary range for this position is $110,000 - $140,000 per year. Please note that Tetra Tech considers various factors in determining pay, including but not limited to: education, relevant and demonstrated work experience in the role, skills, geographic location, qualifications, certifications, and other competencies relevant to the needs of the business.

As Senior Lab Manager, you will play a key role in overseeing laboratory operations, maintaining high standards of testing and documentation, supporting project delivery, and mentoring technical staff. Your work will contribute to the successful delivery of infrastructure, transportation, mining, and community‑development projects across the North.

• Manage the day-to-day operations of the Yellowknife materials laboratory, including scheduling, staffing, equipment, supplies, and workflow.
• Plan, coordinate, and oversee laboratory and field-testing programs for soils, aggregates, asphalt concrete, and other construction materials.
• Provide technical leadership, training, and mentorship to laboratory and field technologists.
• Review and approve field quality-control documentation, laboratory test results, and technical reports for accuracy, completeness, and compliance with applicable standards.
• Maintain accurate laboratory records, including equipment calibrations, maintenance records, testing documentation, sample tracking, and shipping records.
• Ensure nuclear density gauges and other laboratory equipment are properly maintained, calibrated, stored, transported, and documented.
• Perform and oversee field and laboratory testing of soils, aggregates, and asphalt concrete, including sieve analysis, density testing, and moisture-content testing.
• Oversee the preparation and testing of soil index testing including Proctors, Atterberg limits, grain size analysis, hydrometers, and other index laboratory testing.
• Evaluate and report on the properties and characteristics of tested materials and provide technical input to project teams and clients.
• Coordinate laboratory activities with project managers, engineers, technologists, contractors, and clients.
• Support quality-control and quality‑assurance programs and ensure testing is completed in accordance with project requirements, applicable standards, and regulatory expectations.
• Assist with estimating, scheduling, resourcing, and planning for laboratory and field-testing programs.
• Participate in drilling and geotechnical…