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Polytainers Inc

Warehouse Supervisor- Continental Night Shift 7 pm to 7 am

Toronto, ON, Canada

Experience: Minimum 5 years of warehouse experience in a fast-paced, high-volume manufacturing environment
Posting language: English
Posted: Sep 29, 2026

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Original job description

Location: Etobicoke, Ontario
Department: Supply Chain
Shift: Continental Night Shift 7 pm to 7 am

At Polytainers, we create packaging that helps protect the food products people enjoy every day. As a leading North American manufacturer of rigid plastic packaging, we combine innovation, operational excellence and strong customer partnerships to deliver quality products and contribute to a more sustainable future.

Our people are at the heart of everything we do. Across our teams and facilities, we work together with purpose, put our customers first and continuously look for better ways to work. We create an environment where people are encouraged to share their ideas, empowered to take action and are supported in their growth.

When you join Polytainers, you become part of a team that values accountability, collaboration and respect. Whatever your role - making our products, supporting our customers or improving how we work - your contribution matters. Together, we partner for success, win through teamwork and create packaging solutions for today and tomorrow.

POSITION SUMMARY:

The Warehouse Supervisor is accountable for the safe, efficient, and cost-effective execution of all warehouse operations on their assigned shift. This role owns shift performance across safety, quality, delivery, cost, and people engagement, ensuring operational targets are consistently achieved while fostering a high-performance, continuous improvement culture.

The Supervisor leads, coaches, and develops the warehouse team, ensures disciplined execution of processes and systems, and drives operational excellence aligned with Polytainers’ business objectives.

Key Responsibilities

1. Safety, Compliance & Food Safety

Act as the designated "Competent Person" on shift, ensuring full compliance with Health & Safety, HACCP, cGMP, and 5S standards
Lead incident/accident investigations, ensuring timely reporting, root cause analysis, and corrective actions
Proactively identify hazards and implement preventative measures
Conduct regular safety audits and ensure proper documentation
Ensure proper product handling, storage, and traceability to meet food safety and quality standards

2. Operational Performance & KPIs

Own and deliver shift performance against key metrics including:

Safety (TRIR, near misses)
On-Time In-Full (OTIF) shipping
Inventory accuracy
Picking/shipping accuracy
Labour productivity and cost

Monitor real-time performance and take immediate action to address gaps
Ensure effective shift handovers with clear communication of issues and priorities
Escalate operational risks and issues as required

3. Inventory Control & Systems Execution

Ensure accurate and timely execution of all warehouse transactions in WMS/ERP systems
Lead cycle count activities and resolve inventory discrepancies through root cause analysis
Maintain high levels of inventory accuracy and system integrity
Drive discipline in scanning, tracking, and material flow processes

4. Labour Planning & Workforce Management

Develop and execute daily labour plans aligned with volume and operational priorities
Monitor productivity and optimize workforce utilization across functions
Manage staffing levels, including overtime and temporary labour, to meet business needs
Maintain attendance, vacation, and scheduling in Dayforce

5. People Leadership & Development

Lead, coach, and develop team members to build a high-performing and engaged workforce
Ensure fair and consistent application of company policies and standards
Manage performance through regular feedback, coaching, and formal performance improvement processes
Maintain accurate documentation of performance and disciplinary actions
Identify training needs and maintain an up-to-date training matrix
Develop team capability through cross-training and succession planning

6. Quality & Problem Solving

Ensure timely response to NCRs and quality issues
Lead structured root cause analysis (e.g., 5 Whys) and implement sustainable corrective actions
Prevent recurrence of issues through process improvements and team education

7. Continuous Improvement

Identify and implement opportunities to improve safety, quality, delivery, cost, and space utilization
Lead or participate in Kaizen events and CI initiatives
Track and report measurable improvements and sustain gains
Promote a culture of continuous improvement and accountability

8. Communication & Cross-Functional Collaboration

Lead daily and weekly team communication meetings
Communicate performance results, priorities, and expectations clearly to the team
Collaborate with Planning, Customer Service, Production, and Quality to ensure alignment and service excellence
Support urgent customer requirements and operational escalations

9. Operational Excellence & Housekeeping

Ensure warehouse organization, cleanliness, and visual management standards are maintained
Conduct daily audits to ensure compliance with operational standards
Support layout optimization and efficient material flow

Qualifications & Experience

Education

Post-secondary education in Business, Supply Chain, or related field, or equivalent experience

Experience

Minimum 5 years of warehouse experience in a fast-paced, high-volume manufacturing environment
Minimum 2 years of supervisory experience preferred
Experience in plastics and/or food packaging industry is an asset

Technical Skills

Strong knowledge of warehouse operations, inventory control, and material flow
Experience with WMS/ERP systems (SAP preferred)
Proficient in Microsoft Office (Excel required)

Certifications

Forklift and Reach Truck certification preferred

Core Competencies

Strong leadership and people development skills
Results-oriented with a bias for action and accountability
Excellent problem-solving and decision-making capabilities
Effective communication and interpersonal skills
Ability to influence and build trust across teams
High sense of urgency and ownership
Strong organizational and time management skills

Working Conditions

Significant time spent on the warehouse floor in a fast-paced, noisy environment
Occasional operation of material handling equipment (forklift/reach truck)
Flexibility to work non-standard hours as required

This job posting reflects existing vacancy. Details will be clarified during the recruitment process, if selected.

Polytainers does not directly use artificial intelligence to screen, assess or select applicants. However, Polytainers does use Indeed.com to publicly advertise this posting and Indeed.com does use artificial intelligence as part of the screening process. More information about how Indeed.com uses artificial intelligence in their process can be found here: How Indeed Uses AI: Employer Tools and Responsible Use

This position is open to applicants legally authorized to work in Canada.

Polytainers is proud to be an Equal Employment Opportunity employer. Polytainers is committed to diversity and inclusivity in employment and welcomes applications from qualified individuals of diverse backgrounds.

Polytainers Inc. is committed to providing accessible employment practices that are in compliance with the Accessibility for Ontarians with Disabilities Act (‘AODA’). Applicants are asked to make their needs/requirements, for the purpose of accommodation under AODA, known to Human Resources when they are contacted for an interview. Accommodations are available on request for candidates taking part in all aspects of the selection process.

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More about this job

Responsibilities

The Warehouse Supervisor is responsible for the safe, efficient, and cost-effective execution of all warehouse operations during their assigned shift. This role involves leading and developing the team, ensuring compliance with safety and quality standards, and driving operational excellence through continuous improvement.

Requirements

Candidates must have at least 5 years of warehouse experience in a high-volume manufacturing environment, with a preference for 2 years of supervisory experience. A post-secondary education in Business, Supply Chain, or a related field is required.

Skills

Warehouse operations
Inventory control
Material flow
WMS systems
ERP systems
SAP
Microsoft Office
Forklift operation
Reach truck operation
Team leadership
Performance management
Safety compliance
HACCP
CGMP
Continuous improvement
Problem solving

Visa sponsorship

Not detected in the job text

Keywords

Warehouse Supervisor
Supply Chain
Continental Night Shift
Manufacturing
Safety
HACCP
CGMP
5S
OTIF
Inventory Accuracy
WMS
ERP
SAP
Labour Planning
Dayforce
Performance Improvement
Kaizen
Continuous Improvement
Forklift
Reach Truck
Quality Assurance
Root Cause Analysis
Material Handling
Operational Excellence
Food Packaging

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