Are you a Marine mechanic looking to step up into Management whilst staying active on the tools, then the Helm of Your Next Adventure is with Mariner Diesel Services!

Mariner Diesel Services is growing fast, with an exciting future and a packed schedule ahead — and we’re looking for skilled, motivated Marine Manager to join our crew in Mandurah.

We’re not your average Marine business. At Mariner Diesel, we genuinely value our technicians and the contributions they make to the team, our clients, and their vessels. We love boats — and chances are, you do too.

Why Join Mariner Diesel?

Established in 2015 and based at the Mandurah Slipway in Mandurah

Authorised dealer for Volvo Penta, Yanmar, John Deere, Cox, Oxe, Mase, Eniquest— plus select other brands

Work on everything from tenders to 200-foot superyachts — job variety guaranteed

Be part of a supportive, professional, and passionate team that has your back

Access to a well-stocked parts department and a fleet of mobile service vehicles

Mon–Fri schedule with some flexibility and an early finish on Fridays — keep your weekends for the water (or the family!)

The Role

As a Marine Manager at Mariner Diesel, your duties will include:

Managing a small team of mechanics

Organising & allocating jobs

Liaising with the Service Manager

Helping with servicing & maintaining marine engines and drivetrains during busy periods

Assist with diagnosing and repairing engine & vessel systems

Assist with maintaining marine generators (Mase, eniquest and others)

Liaise with OEM’s & boat owners with re-powering options (diesel and petrol)

Performing on-water testing, collections, and deliveries

Assist with installing new engines and systems

Communicating clearly with both the team and customers

Ordering parts

Invoicing

What We’re Looking For

Qualified mechanical tradesperson (marine background preferred, but other industries welcome)

Experience with diesel/petrol engines and 12v electrical systems

Excellent diagnosis and troubleshooting skills

Strong work ethic — self-motivated, reliable, and a team player

Passion for boats and being on the water

Valid driver’s licence (boat licence a plus)

At least 2 years marine experience

Strong organisational skills

Excellent time management

High competency on a computer

Volvo Penta experience desired

Strong leadership skills desired