Who We Are

Mitten is the original Canadian manufacturer and market leader of vinyl siding. Our continued focus on operational excellence has set the industry benchmark for service, quality, performance and design, backed by the best in class lifetime warranty. As a coast to coast distributor of premium exterior building products we are the link between architects, builders and installers providing an endless variety of business and design solutions. As part of the Cornerstone Building Brands family, we are the largest manufacturer of exterior building products in North America. Our Canadian made vinyl siding has the largest and boldest colour palette in the industry and our colour matched aluminum, shake, stone, and accessories provide the perfect complements and finishing touches to any project. Our products maximize curb appeal and benefit installers by minimizing labour requirements.
Mitten Building Products is a growing company in the building products industry backed by Cornerstone Building Brands, providing us with stability and strength in the North American market. Cornerstone Building Brands is the largest manufacturer of vinyl windows in North America with brands you’ve come to know and trust. We have endless building product options from standard to specialty to customized to whatever you’re looking for. But it’s our service capabilities that sets us apart.
At Mitten Building Products, we strive to produce a continuous stream of market leading products and services. We are creative and seek to recognize, embrace and apply new ideas and commercialize them more quickly than our competitors. We relentlessly seek to raise the bar on our products and services. We establish a reputation for innovation, quality and service that differentiates us from our competitors and enables us to tailor products and services to be the market leader.
Our building solutions are the cornerstone of the communities we serve. We believe every building we create, and every part of that building, positively contributes to communities where people live, work and play.

Why Join Our Team
Our employees are empowered to make a meaningful impact on our success while pursuing a wide range of opportunities to meet your personal aspirations for development and advancement within a stable, growing Canadian industry leader.

What You Can Expect from our Company
· You will be Part of a Winning Team
· You Can Capitalize on Your Opportunities and Make an Impact
· You Will Be Well Rewarded for Your Contributions to our Success
· You’ll work for a growing company with an excellent reputation in our sector for providing great products and customer service
· Competitive and tangible rewards that provide fair compensation relative to expectations and effort including base earnings, benefits for you and your family, and contributions toward your retirement savings
· Additional performance-based compensation depending on your role
· Competitive vacation time and flexibility in work schedules and location consistent with your role
· Resources and support to help you manage your personal wellness

What the Company Expects of our Team
· Bring yourself fully to work each day
· Playing your role on the team so together we Win as One
· Welcoming and Driving Change to support our continued evolution
· Help drive the success of our Canadian Business through living our universal core values
· Making an Impact to ensure our continued success

The Supervisor, Branch Warehouse (Customer Service) is responsible for the safe, accurate, and efficient execution of warehouse and fulfillment operations. This role plays a critical part in delivering a consistent, accurate, and customer-first experience at the branch level.

The Supervisor oversees order processing, customer communication, customer quoting in alignment with national standards, defined authority limits, and established escalation paths. This role owns floor-level execution, inventory accuracy, warehouse labor coordination, and safety compliance.

Serving as a key connector across functions, the Supervisor acts as the primary point of contact for customers and collaborates closely with Sales, Operations, and Warehouse teams to ensure seamless execution.

This role reports to the Sales Operations Manager.

KEY OBJECTIVES AND RESPONSIBILITIES

Fulfillment & Shipping Execution

• Execute daily picking, staging, and shipping activities aligned to the approved shipping schedule.
• Translate approved shipping plans into daily execution priorities.
• Coordinate carrier pickups and outbound logistics execution.
• Proactively communicate execution risks, constraints, or deviations from plan.

Inventory Management & Accuracy

• Own inventory accuracy through disciplined cycle counts and physical inventories.
• Investigate and resolve inventory discrepancies.
• Ensure proper storage, handling, and material flow within the warehouse.

People Leadership & Safety

• Lead, schedule, and direct warehouse associates.
• Own safety compliance, enforcement, and execution training on the warehouse floor.
• Set clear performance, productivity, and safety expectations.
• Support hiring, onboarding, training, and performance management activities.

Issue Investigation & Root Cause

• Investigate warehouse-related shortages, damages, and execution issues.
• Confirm facts, constraints, and root cause related to fulfillment failures.
• Document root cause and corrective actions and implement process improvements to prevent recurrence.

Customer Service & Order Management

• Enter, manage, and maintain customer orders accurately in the ERP system.
• Confirm pricing, product availability, lead times, and delivery details in accordance with national guidelines.
• Communicate order status, delivery timing, and updates to customers.
• Service customers via phone, email, and in person at the branch.
• Maintain accurate customer records and documentation.
• Prepare complete customer quotes and material take-offs using approved tools, pricing, and national standards.
• Ensure quotes and take-offs are accurate, complete, and documented for Sales follow-up or customer approval, without negotiating pricing or terms.
• Document outbound call activity and outcomes in the CRM.
• Identify potential project activity or growth opportunities and record them for Sales follow-up.
• Support outside sales representatives with order updates, quotes, and customer communication.

• High school diploma required; post-secondary education preferred
• 2 to 4 years of customer service, order desk, or inside support experience
• 2 to 4 years of experience in warehouse or distribution operations
• Demonstrated people leadership and safety-focused mindset
• Forklift experienced required
• Experience in a building materials or distribution environment preferred
• Proficiency with ERP and Microsoft Office Suite
• Strong attention to detail and communication skills

Pay: $60-70,000. Placement within the range will be determined based on the candidate's experience, skills, and qualifications relative to the requirements of the role. Candidates who meet the core requirements can generally expect to be placed closer to the midpoint of the range, while those with significant relevant experience may be considered toward the higher end of the range. 

Mitten Inc. is also committed to providing an inclusive and barrier free recruitment and selection process. Applicants should advise Human Resources if they require any type of accommodation during the recruitment process.