Senior Mechanical Engineer

At Aggreko, we provide energy solutions so businesses can grow and communities can thrive. Mines, data centres, sporting events, manufacturing sites – even whole cities – need electricity around the clock. Reliable supplies of energy have never been more critical. That’s why we make sure our customers have power, heating, and air conditioning when, where and for however long they need it. Benefits Work from home or in the office, Hybrid Competitive compensation Paid training programs and tuition reimbursement Safety-focused culture Community volunteering program A range of career development opportunities The Senior Mechanical Engineer is responsible for the mechanical design, application engineering, and technical support of power generation and temperature control solutions across the APAC region. The role focuses on diesel and gas generator systems, fuel systems, and temperature control plant (chillers, heat exchangers, HVAC), ensuring performance, reliability, safety, and compliance with Australian and international standards. You will work closely with sales, operations, QHSE, and project management teams to develop robust solutions, support project delivery from concept to commissioning, and provide expert technical guidance to internal and external stakeholders. Responsibilities Take technical ownership of design and application engineering for power generation and temperature control projects across APAC from concept to FAT/SAT and commissioning Deliver detailed mechanical designs for mining and power generation projects, ensuring compliance with relevant standards and regulations and that designs consider fuel properties, performance, emissions, reliability, and maintainability Size and specify mechanical equipment, including engines, generators, fuel systems, chillers, heat exchangers, HVAC equipment, pumps, and ancillary components Support the design and integration of fuel gas conditioning systems (filtration, pressure regulation, heating) for gas engines Provide operational technical support for deployed systems, including fault-finding, root cause analysis, and performance optimisation to minimise downtime Participate in on-call and escalation support for urgent operational issues Provide technical input and options to Sales teams, supporting bids, tenders, and proposals with optimised solutions Coordinate with other engineering disciplines, project managers, suppliers and contractors to ensure successful delivery Produce clear, concise technical reports and recommendations for internal and external stakeholders What we’re looking for Bachelor’s degree in Mechanical Engineering (or closely related discipline), ideally with CPEng (Engineers Australia) and/or RPEQ registration, or strong willingness and eligibility to obtain these within an agreed timeframe Ideally a minimum of approx.. 5 years’ experience in power generation and/or temperature control systems (diesel/gas generators, chillers, HVAC, industrial cooling/heating) Strong understanding of diesel and gas generator systems, including performance optimisation and reliability engineering. Proven experience in sizing and selecting mechanical equipment Experience in designing temperature control systems including sizing and selection of equipment Basic knowledge of fuel gas conditioning systems and their application with gas engines. Strong understanding of fuel parameters (heat rate, LHV/HHV, Wobbe Index, specific fuel consumption) and their impact on generator performance and efficiency Knowledge of diesel fuel standard EN590 and biodiesel standard EN14214, with awareness of their implications for engine performance and emissions Proficiency in 3D AutoCAD (or similar CAD tools) for preparing and modifying mechanical drawings and layouts Demonstrated hands‑on troubleshooting skills and root cause analysis capability on mechanical systems Ability to work effectively with cross‑functional teams (engineering, operations, sales, project management) Strong written and verbal communication skills, including technical reporting Basic project management capability (scheduling, resource coordination, progress reporting) Why join Aggreko? We welcome people from different backgrounds and cultures, and respect people’s unique skills, attitudes and experiences. We encourage everyone to be themselves at work because we know that’s how we do our best, for each other, for our customers, forthe communities where we work, and for our careers. Our culture inspires and unites us to grow, change and deliver the best solutions for our customers. It means that we are: Dynamic . Although we’re sixty years old, it doesn’t feel like it when you work here. There’s a lot going on and our entrepreneurial spirit helps us to deliver at pace for customers and each other. Experts in what we do. We’re a team of experts who blend our experience and unique expertise to deliver precisely the right solution for customers. Our work is hugely varied; no two days are the same. And because of this, there are always opportunities for motivated people to learn and grow quickly. Innovative . We’re curious about how new ideas and technologies can benefit customers and simplify how we work. And that’s as true for our fleet, where we’re introducing hybrids and battery storage, as it is for improving the way we work together. Together . We’re a team of 6,000 people. We might be spread out across the globe, but because we’re inclusive and straightforward, and we hold each other to