Quality Assurance Technician (Night Shift) at Greenhouse · Mississau…

About Greenhouse 

Greenhouse is a plant-based beverage company and Certified B Corporation. We believe growth is always possible and that quality and food safety are non-negotiable.
Our overnight operations are critical to keeping our facilities compliant, safe, and audit-ready. This role plays a key part in protecting product integrity, enforcing standards, and ensuring every batch meets our quality expectations. 

  

The Opportunity 

We’re hiring an Overnight Quality Assurance Technician to independently oversee quality, food safety, sanitation, and compliance during night shift operations in a beverage manufacturing environment.This is a steady overnight shift (non-rotational).You will serve as the sole Quality Assurance presence and primary decision-maker for quality and food safety during the overnight shift.You will monitor multiple production lines, conduct beverage sensory and specification checks, enforce GMP standards, verify sanitation systems, and apply structured, step-by-step decision-making processes when issues arise. This role is ideal for someone who is observant, decisive, process-driven, and confident working independently, someone who identifies risks early and acts before they become deviations. 

  

What You’ll Lead 

Overnight Quality & Food Safety Oversight 

• Independently monitor multiple beverage production lines during overnight operations 

• Ensure compliance with GMPs, SOPs, SSOPs, HACCP, SQF, and regulatory requirements (CFIA, FDA, Organic, Kosher) 

• Actively enforce GMP standards and address non-compliance immediately 

• Apply structured, step-by-step decision-making processes when initiating product holds, line stops, or escalations 

  

Beverage Sensory & Product Specification Evaluation 

• Conduct beverage sensory evaluations (taste, aroma, appearance, texture) 

• Verify finished product specifications (pH, Brix, viscosity, fill weights, packaging integrity, etc.) 

• Identify and address deviations from product specifications in real time 

  

Sanitation, CIP & Allergen Control 

• Verify sanitation and allergen control programs for beverage processing equipment (tanks, fillers, lines, transfer systems) 

• Verify CIP (Clean-in-Place) and COP (Clean-out-of-Place) systems, ensuring cycles meet defined parameters. Confirm chemical concentrations, contact times, temperatures, and titrations meet specification. Release equipment and filling lines for use accordingly. 

• Ensure sanitation activities comply with SSOP requirements 

• Take corrective action when sanitation standards are not met 

  

Multitasking & Situational Awareness 

• Effectively prioritize and monitor QA oversight across multiple active production lines 

• Maintain strong situational awareness across the facility while working independently 

• Identify early warning signs of quality or food safety risks 

• Intervene early to prevent non-conformances rather than reacting after the fact 

  

Documentation, Traceability & Investigations 

• Complete QA documentation accurately and on time during overnight shifts 

• Maintain organized, audit-ready traceability and retention sample records 

• Document investigations, root cause analysis, and corrective actions clearly and thoroughly 

  

Communication & Handover 

• Communicate assertively when quality or GMP standards are not met 

• Provide thorough written shift handovers outlining observations, actions taken, and required follow-ups 

• Escalate issues appropriately following defined protocols 
  

What Success Looks Like 

• GMP standards are consistently enforced during overnight operations, with non-compliance addressed immediately and appropriately 

• Sanitation and allergen verification checks are completed and documented thoroughly each shift 

• QA documentation is accurate, complete, and finalized on time 

• Potential quality or food safety risks are identified early and acted on before becoming formal deviations 

• Product holds, line stops, and escalations follow the defined step-by-step decision-making process 

• Traceability and retention sample records remain organized, complete, and audit-ready 

• Non-conformances identified overnight are clearly documented and progressed toward timely resolution 

  

What You’ll Bring 

• 2+ year of Quality Assurance experience in beverage manufacturing 

• Experience performing beverage sensory evaluations and product specification verification 

• Strong working knowledge of GMPs, SOPs, and SSOPs in a liquid processing environment 

• Demonstrated experience verifying and troubleshooting CIP and COP systems 

• Strong risk-based thinking and ability to follow structured decision-making processes 

• Ability to multitask and confidently monitor multiple production lines simultaneously 

• High confidence with assertive, clear communication when enforcing standards 

• Strong documentation and traceability skills with high attention to detail 

• Comfort working independently on a steady overnight shift (non-rotational) 

• Strong situational awareness—you notice issues before they become deviations 

• Working knowledge of microbiology, chemical handling (SDS/MSDS), titration, and sanitation chemistry 

• Proficiency with Excel, Word, and PowerPoint 

Note

As a standardized step in the application process, we ask that you complete the Culture Index (TM) Survey so we can see how it may apply to your work related needs as well as our company requirements. It also assists us in better employee management and development. Please complete the survey by following the URL: here.

Vacancy Status: This is an existing vacancy.

Annual Compensation Range: $50,000.00 CAD - $60,000.00 CAD

AI Use: Please note that as part of our interview process, candidates selected will be asked to complete an online assessment hosted on an AI platform. We may also use AI tools during interviews and case studies to support note-taking and evaluation (for example, meeting transcription). Information collected through these tools is used solely for recruitment and assessment purposes.

Greenhouse is committed to building an inclusive workplace and ensuring all people-related processes are administered without regard to race, color, religion, national origin, sex, age, or disability. Accommodations are available upon request.