Senior Mechanical Engineer

AirTrunk

Location not specified

Full Time

Posted October 7, 2026

$114k - $174k· Est.

Climate Technology

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Listing evidence and provenance

Source: Greenhouse View original listing
Freshness: Open in the current public read path; this is not an employer guarantee.Last observed October 7, 2026
Classification: Modern power-system classification not yet published for this listing.Legacy source industry field: Climate Technology
Pay provenance: Estimated benchmark; not employer-provided

Job Description

As Senior Mechanical Engineer, you will report to the Principal Mechanical Engineer and be based at our North Sydney headquarters.

Key Responsibilities

Perform risk-based mechanical design reviews across concept, preliminary, schematic, detailed and IFC stages, documenting findings, actions, owners and required closure
Assess designs and technical submissions against the AirTrunk Reference Design, GMS-E, mechanical OSE specifications, approved project requirements, applicable codes and customer commitments.
Provide timely and consistent mechanical guidance to design consultants, Design Management, site engineering, project delivery and commissioning teams, explaining both the requirement and its technical intent.
Support Design Management in resolving technical issues while preserving its ownership of project design coordination and the project design Project delivery teams and their designers remain responsible for developing and coordinating the design.
Support design management in reviews of CFD studies against project requirements and global standards
Identify deviations, non-conformances, assumptions and unresolved risks; recommend technically sound resolution options and escalate departures, waivers or material decisions to the Principal Mechanical Engineer.
Develop scalable mechanical solutions that accommodate regional climate, water availability, regulations, supply-chain constraints and customer needs without unnecessary divergence from the global baseline.
Provide structured mechanical input to Design and Innovation on proposed reference design changes, supported by project evidence, technical analysis, performance data and lessons learned.
Drive assigned mechanical OSE improvement activities, including requirements capture, technical evaluation, product performance reviews, vendor feedback and proposed specification updates, for approval by the Principal Mechanical
Verify that approved mechanical OSE products and their interfaces are correctly incorporated into project designs, and support resolution of product integration
Provide subject matter expertise across cooling and thermal systems, ventilation, hydraulics, fuel systems, fire and life-safety interfaces, controls interfaces, water and energy performance, and associated OSE.
Coordinate mechanical interfaces with electrical, controls and automation, civil, structural, architectural, fire, fuel, hydraulic and commissioning teams.
Contribute to Safety in Design reviews and ensure material mechanical hazards, assumptions, constraints and residual risks are identified, treated and
Support Procurement and Supply Chain with technical review of vendor proposals, substitutions and quality risks, and participate in factory acceptance testing or proof-of-concept activities where required.
Support investigation and resolution of significant site, commissioning and operational issues, completing root-cause analysis and feeding agreed improvements back into future designs and global standards.
Identify value engineering opportunities and provide the technical analysis needed to balance capital cost, programme, energy and water performance, resilience, operability, maintainability and lifecycle value.
Share knowledge and mentor engineers and project stakeholders, promoting consistent interpretation and application of AirTrunk's mechanical requirements across

Requirements

Bachelor's degree in Mechanical Engineering or a closely related discipline; a relevant postgraduate qualification is advantageous.
Typically 8+ years of progressive mechanical engineering experience across design, technical assurance, construction, commissioning or operations.
Chartered or Professional Engineer status, or progress towards an equivalent recognised registration, is preferred.
Strong experience in data centres, mission-critical facilities, industrial infrastructure or another high-availability operating environment.
Sound expertise in cooling and thermal systems, ventilation, hydraulics, fuel systems, fire and life-safety interfaces, controls, water and energy performance, and equipment
Demonstrated ability to review complex designs, interpret engineering standards and codes, identify material risks and provide clear, evidence-based recommendations.
Experience with mechanical equipment specifications, technical evaluation, vendor engagement, design integration and product improvement is highly regarded.
Ability to develop practical and scalable solutions across different climates, regions, regulatory environments and project delivery models.
Commercial awareness and an understanding of value engineering, lifecycle cost, constructability, maintainability and operational performance.
Strong written and verbal communication, sound judgement, collaborative working style and willingness to travel occasionally across AirTrunk's regions.