Senior Mechatronics Electrical Engineer (Robotics)

Mason; Central Coast Council; On-site; AUD 120,000 - 170,000; Full time

Job summary

Onyx Precast Systems – Precast Concrete Manufacturer in Wyong (Central Coast) & new Jilliby facility – seeks a Senior Automation Engineer to own design, integration and industrialisation of robotic end-effectors and tooling. You will integrate PLC subsystems, design the SCADA layer, and collaborate across teams to scale a 15-tonne automated system.

Join a small team driving world-leading precast automation.

Qualifications

• Hands-on PLC integration and commissioning experience.
• SCADA system design and integration experience.
• 5+ years in automation/mechatronics/electrical engineering (manufacturing or materials-handling preferred).
• Value-engineering mindset to improve reliability and efficiency.

Responsibilities

• Take ownership of iterative design, optimisation and industrialisation of robotic end-effectors and tooling.
• Integrate PLC-based subsystems into the broader architecture.
• Design and integrate the SCADA layer for monitoring, control and data acquisition across the plant.
• Co-design a 15-tonne automated vertical storage and lifting system with engineers and external fabricators.
• Integrate and commission the AGV fleet into the production flow.
• Value-engineer aspects of automation for reliability, cycle time, cost.
• Collaborate with in-house and third-party teams and CEO who writes software.

Skills

PLC integration

SCADA design

Mechatronics

Electrical engineering

Automation

Job description

Senior Mechatronics Electrical Engineer (Robotics)

Company
Onyx Precast Systems – Precast Concrete Manufacturer
Wyong (Central Coast) & new purpose-built facility in Jilliby, NSW

Our Product - Onyx
We’re building the world’s most advanced automated precast (concrete) production system that will be sold and deployed globally.

Onyx is a multiple industrial arm-driven system, capable of producing dozens of large (up to 12 ton) precast elements daily. The system employs a dozen custom end effectors, AGVs and in house software to near-fully automate the existing industrial process.

R&D is never complete, and as such there's still a healthy backlog of new features and improvements in the pipeline.

The Team
We’re a small engineering team of two in house and one third-party engineer.

All of the R&D happens inside our existing (old school) precast factory of 6 staff which acts as a rollout partner and source of knowledge.

We have secured our first customer and have orders out for more, making it an exciting time to join as we start to deploy, scale and grow the commercial automation side of the business.

Role Title
Senior Automation Engineer – Mechatronics, Electrical
(Direct report to the CEO)

What You’ll Actually Do

Take ownership of iterative design, optimisation and industrialisation of all robotic end-effectors and tooling.

Integrate PLC-based subsystems into the broader architecture.

Design and integrate the SCADA layer for monitoring, control and data acquisition across the entire plant.

Co-design a 15-tonne automated vertical storage and lifting system with our structural and mechanical teams and external fabricators.

Integrate and commission the AGV fleet into the production flow.

Value-engineer every aspect of the automation for reliability, cycle time, cost and serviceability.

Work shoulder-to-shoulder with our existing engineers, third-party automation partner and the CEO who writes the software.

Be the go-to technical authority as we scale from prototype → commercial product → multiple customer installations.

Required is up to 30 nights in 2027 away from home, near Port Macquarie, supporting our first commercial installation.

You’ll love this role if you

Get a genuine buzz from seeing robots do useful, hard things in the real world.

Are happiest when you’re in the workshop with a screwdriver one hour and CAD the next.

Hate over-engineered solutions and obsess over simplicity, uptime and value.

Thrive in a small, high-trust, high-delivery team where your opinion carries real weight.

Must-Have Experience

5+ years in automation/mechatronics/electrical engineering (ideally manufacturing or materials-handling environments).

Hands-on PLC integration and commissioning experience.

SCADA system design and integration experience.

Value-engineering mindset – you naturally shave seconds and dollars without sacrificing quality.

The Person We’re Looking For

Adaptive – priorities can shift fast when we learn something new.

Solution-focused, not problem-focused.

Obsessed with building products that are genuinely great.

Conscientious to your core – you hit deadlines because missing them hurts.

Location & Logistics

Based between Wyong (current site) and the new Jilliby facility (~15 min drive).

Up to 30 nights in 2027 away from home.

Occasional interstate/overseas travel for supplier visits and future customer installs.

If you’ve spent years making robots do clever, heavy, real-world work and you’re ready to own an entire production system end-to-end, let’s talk.

Onyx Precast Solutions – The Future of Precast.