Principal Mechanical Engineer - HVAC, Building Services, Fire Protection

Building on our past. Ready for the future Worley is a global professional services company of energy, chemicals and resources experts. We partner with customers to deliver projects and create value over the life of their assets. We’re bridging two worlds, moving towards more sustainable energy sources, while helping to provide the energy, chemicals and resources needed now. Purpose : We are currently recruiting for a Principal Mechanical Engineer – HVAC, Building Services and Fire Protection Our team includes world class experts and dynamic go-getters. This is a full-time position based in Markham, Ontario. This senior technical leadership role is responsible for the design and delivery of HVAC, industrial building services, utilities, plumbing, drainage and fire protection engineering solutions for process plants, mining and metals operations, energy facilities, laboratories, industrial buildings, control rooms, substations and other critical infrastructure environments. Reporting to the Mechanical and Piping Engineering Department Manager, Canada East, the successful candidate will lead discipline teams, oversee engineering deliverables, support procurement and construction activities, and ensure solutions are safe, compliant, constructible and aligned with Worley, customer and statutory requirements. The ideal candidate is a self-directed and collaborative engineering leader with strong technical judgment, clear communication skills, and the ability to guide multidisciplinary teams through complex projects in regulated industrial environments. Responsibilities : Provide technical leadership for HVAC, building services and fire protection engineering from concept and feasibility through detailed design, construction support, commissioning and closeout. Lead and coordinate engineering teams in the preparation, review and approval of design criteria, calculations, specifications, equipment datasheets, layouts, reports, drawings and other technical deliverables. Oversee the design of industrial HVAC and building services systems, including heating, ventilation, air conditioning, exhaust, filtration, pressurization, make-up air, plumbing interfaces, drainage systems, heat recovery systems and utility coordination. Provide technical direction for fire protection scope, including fire water distribution, sprinkler and suppression system coordination, hydrants, standpipes, fire pumps, fire alarm interfaces and code-driven life safety requirements. Ensure engineering deliverables comply with applicable codes, standards, regulatory requirements, client specifications, Worley procedures, HSE expectations and quality requirements. Support equipment selection and sizing for air handling units, fans, chillers, boilers, heat pumps, cooling towers, ductwork, dampers, louvers, filters, coils, controls and related mechanical components. Coordinate with mechanical, process, piping, electrical, instrumentation and controls, civil, structural, architectural and construction teams to deliver integrated, safe and constructible design solutions. Provide technical input for hazardous area ventilation, indoor air quality, occupational health requirements, thermal comfort, equipment heat load management and critical room environmental control. Support project managers with scope definition, work-hour estimates, schedules, change management, technical risk management and project execution planning. Support procurement activities by preparing technical content for RFQs, leading technical bid evaluations, reviewing vendor documents and providing recommendations for vendor selection. Lead or participate in design reviews, risk assessments, value engineering workshops, constructability reviews, quality audits and technical issue resolution. Engage with clients, contractors, suppliers, authorities having jurisdiction and internal stakeholders to resolve technical matters and support successful project delivery. Provide professional engineering