Senior Mechanical Engineer

Gr Engineering Services; Perth; On-site; AUD 140,000 - 190,000; Full time

Benefits offered by this job

Weekly pay

EAP & family wellbeing

24 weeks parental leave

Job summary

GR Engineering Services Limited in Ascot, Western Australia, is seeking a Senior Mechanical Engineer to join our team on mining and mineral processing projects across a range of commodities, with occasional site visits as required.

You will lead technical direction, develop concepts through to detailed designs, and mentor junior engineers, all while aligning with industry standards. The role offers a robust project pipeline and weekly pay cycle within a supportive, values-driven culture.

Qualifications

• Bachelor’s or Master’s degree in Mechanical Engineering, recognised by Engineers Australia.
• Minimum of 6 years' experience in design, construction and commissioning of mineral processing plants.
• Knowledge of design theories and practices including sizing conveyors, pumps and other equipment typical in mineral processing.
• Able to provide input into conceptual layouts and designs through to detailed designs and drawings.
• Knowledge of current engineering design standards and practices.
• High level of communication, planning and organisation skills.
• Proficient with Excel, Word and 3D viewing software.
• Current National Police clearance and White Card.
• Full Australian working rights.

Responsibilities

• Work in a project team to achieve design budgets and schedules including technical direction and coordination; opportunities to lead small projects and progress your career.
• Assist designers in the development of conceptual designs and move toward detailed designs.
• Complete detailed mechanical engineering designs and calculations and review vendor documentation.
• Prepare/review data sheets, scopes and tender evaluations for equipment procurement.
• Assist with internal and client design reviews and resolve outcomes.
• Ensure design compliance with statutory regulations and company standards.
• Ensure designs are fit for purpose with regard to cost, constructability, operability and maintainability.
• Support site construction activities remotely and work with commissioning teams; mentor junior engineers.

Skills

Communication skills

Planning & organisation

Mechanical design

Conveyors & pumps

Education

Bachelor/Master in Mechanical Engineering

Tools

Excel

Word

3D viewing software

Job description

Senior Mechanical Engineer

Ascot WA, Australia

• Great opportunity to join a growing Team
• Work on a variety of mineral processing projects
• Weekly pay cycle & long term projects

Do you want to work for a company who provides the financial peace of mind of a major ASX-listed company with the heart of a family business? With a massive project pipeline, a hands‑on leadership team, and the security of our industry reputation, your future is secured.

Our success is built collectively, through collaboration, trust, and a shared commitment to excellence. Prioritising diversity, professional growth and autonomy, we pride ourselves on measurable outcomes. With us you aren't a number, but a trusted part of a team committed to delivering outstanding outcomes for our global clients. You are empowered to take ownership of your role while working across full project lifecycles. We offer stretch opportunities early and direct mentorship to ensure our teams have the chance to develop new skills and knowledge.

"Family values. Premier performance. Shared success."

About Us

GR Engineering Services Limited (GRES) is a leading process engineering consulting and contracting company that specialises in providing high quality engineering design and construction services to the mining and mineral processing industries.

We currently have multiple projects on the go and our projection for growth means we are actively looking for talent across all areas of our business.

The Opportunity

We are on the lookout for experienced Senior Mechanical Engineers to join our Engineering Team working alongside a multidisciplined team to deliver outstanding results across various projects in the mining and minerals industry

Based out of our Ascot office you would work on various projects across a variety of commodities ( gold ,copper, iron ore etc) with regular site visits depending on project requirements

A typical day will consist of

• Working in a project team to achieve design budgets and schedules including technical direction and co-ordination including opportunities to lead teams on smaller projects and progress your career.
• Assisting designers in the development of conceptual designs.
• Completing detailed mechanical engineering designs and calculations.
• Technical review of mechanical drawings and vendor documentation.
• Preparing and / or reviewing data sheets, scopes and tender evaluations for equipment procurement.
• Assisting with internal and client design reviews and resolving outcomes.
• Ensuring design compliance with statutory regulations and company standards.
• Ensure designs are fit for purpose and consider all aspects, including, cost, constructability, operability, and maintainability.
• Supporting site construction activities remotely.
• Working with commissioning teams on site.
• Providing mentorship and guidance to junior engineers

About you

• Bachelor’s or Master’s degree in Mechanical Engineering, recognised by the Institute of Engineers Australia.
• Minimum of 6 years technical and practical experience in the design, construction and commissioning of mineral processing plants including detailed understanding of multi-discipline design delivery.
• Knowledge and practical application of design theories, principles, and practices including sizing conveyors, pumps and other equipment typical in mineral processing.
• Able to provide input into conceptual layouts and designs through to detailed designs and drawings.
• Knowledge of current engineering design, standards and practice.
• High level of communication, written, planning and organisation skills.
• Proficient with typical engineering software, particularly excel, word, 3D viewing software.
• Current National Police clearance
• White Card
• Full and unrestricted Australian working rights

What's on offer

We value you and understand that life happens outside of work. Along with convenient amenities , we offer a work place that genuinely cares and as a team we ensure that you have the practical support you need.

This includes:

• Attractive remuneration on a weekly pay cycle
• Employee Assistance Program (EAP), well‑being assistance, free for all the family
• A collaborative and supportive team environment with all the tools to succeed
• GRES provides 24 weeks of paid parental leave to primary caregivers
• Friendly supportive culture

With over 800 employees across Australia and growing, our focus is to create a rewarding working environment where you will be valued and appreciated for your knowledge, experience and innovative mind.

Discover what's under the bonnet at GRES by visiting our careers page https://careers.gres.com.au/ to find a culture where you are valued, make a difference and gain end-to-end project experience.

GRES is an equal opportunity employer and believes that diversity, equity and inclusion deepens our depth of knowledge, capability and experience.

We welcome applications from all backgrounds.

Type: Permanent

Category: Engineering - Mechanical

Reference ID: RA000360

Date Posted: 27/08/2026