Refinery Maintenance Planner

GFL Environmental Services Inc. ("GESI") is a high-growth environmental services company recently carved out of GFL Environmental Inc. Backed by leading private equity firms, GESI delivers liquid waste, industrial cleaning, and soil remediation services across North America through a vertically integrated platform of over 230 sites and a fleet of 1,800+ vehicles. Our employees, collectively known as 'Team Green,' enjoy numerous benefits: career advancement opportunities, competitive benefits, job stability within an essential services company, and the chance to make a positive impact every day for our customers and communities, Green for Life! The role: GFL Environmental is seeking an experienced Refinery Maintenance Planner / Scheduler proficient in CMMS (SAP PM / Maximo), Primavera P6, and Turnaround (TAR) execution. The Maintenance Planner/Coordinator is responsible for planning, scheduling, and coordinating maintenance work across the refinery, tank farm, and the facility overall so that mechanical, electrical, and instrumentation work is executed safely, efficiently, and with the right parts, permits, and labor in place before work begins. This role converts work requests into complete, field-verified job packages, builds and manages the weekly maintenance schedule with Operations, owns materials and parts procurement for planned work, and serves as a key support member of the turnaround (TAR) planning team. This is an individual-contributor role with no direct reports. This is an exempt, salaried position; the role is expected to work the hours necessary - including extended hours during turnarounds, upsets, and major emergent work - to meet operational demands. Key Responsibilities: * Work Order Planning & Job Packages: Review and prioritize CMMS work requests, develop comprehensive job packages with detailed scopes and labor estimates, conduct field walkdowns, and manage the work order backlog. * Scheduling & Coordination: Build and publish weekly/daily maintenance schedules, coordinate equipment availability with Operations, manage contractor/vendor work, and track schedule compliance. * Materials & Procurement: Source and order parts, expedite open orders, stage materials, maintain inventory stock levels, and verify incoming materials meet specifications. * Turnaround (TAR) Planning Support: Assist with TAR scope development, detailed job plans, schedules, critical path tracking, contractor resources, and completion verifications. * CMMS, Records & Reporting: Administer the CMMS database, ensure accurate work order closeouts with failure codes, maintain PSM and mechanical integrity documentation, and produce maintenance KPIs. * Safety & Compliance: Ensure all planned work aligns with PSM, MOC, LOTO, and EHS requirements, participate in JSAs/JHAs, and support incident investigations and corrective actions. * Acting Coverage: Backfill the Facilities Maintenance Manager during absences, participate in the on-call rotation for after-hours escalations, direct daily maintenance work while acting, and assist with hiring/investigations without direct personnel authority. Knowledge, Technical Skills and Competencies: * Working knowledge of regulatory compliance requirements, including OSHA and EPA. * Working knowledge of PSM, MOC, and mechanical integrity in a refinery setting. * Strong CMMS proficiency (e.g., SAP PM, Maximo, or equivalent), including work order, PM, and materials * functions. * Working knowledge of refinery mechanical, electrical, and instrumentation equipment (pumps, compressors,