Custom Denning is Australia's only locally based, fully electric bus manufacturer and a proud pioneer in sustainable public transport.
From our Sydney manufacturing facility, we design and build purpose-built electric buses for government fleets, public transport operators and commercial clients across Australia.
Combining cutting-edge electric vehicle technology with skilled local manufacturing, we deliver zero-emission transport solutions that meet the highest standards of safety, quality, performance and reliability.
THE OPPORTUNITY
We're looking for a Software Engineer to join our engineering team and help develop the software that powers our fully electric buses.
This is a hands-on role suited to someone who enjoys working across embedded systems, vehicle networks and diagnostic tools, and seeing their code run on real vehicles on Australian roads.
Experience in automotive, heavy vehicle, EV or other embedded/industrial systems is highly regarded.
KEY RESPONSIBILITIES
Design, develop and maintain software for vehicle control systems, from requirements through to production release
Develop and integrate embedded software (C/C++) for ECUs, body control and driver interface systems
Configure, integrate and troubleshoot CAN/J**** vehicle networks, including battery, drivetrain, charging and auxiliary systems
Build diagnostic, end-of-line test and calibration tools to support the production line
Support telematics, data logging and over-the-air (OTA) update capabilities across our fleet
Investigate and resolve software and integration issues on prototype and production vehicles, using root-cause analysis and corrective actions
Develop and execute test plans, including bench, hardware-in-the-loop (HIL) and on-vehicle validation
Maintain software documentation, version control,



release notes and engineering change notices (ECNs)
Collaborate with electrical, mechanical, production and quality teams and suppliers to ensure systems are safe, reliable and compliant
ABOUT YOU
You'll bring:
Bachelor's degree in Software Engineering, Computer Science, Electrical/Mechatronics Engineering (or related discipline)
3+ years' experience in software development, ideally in embedded, automotive, heavy vehicle, EV or industrial systems
Robust programming skills in C/C++; Python or C# for tooling and test automation highly regarded
Experience with CAN bus networks and protocols (J****, CANopen, UDS) and tools such as Vector CANalyzer/CANoe or PCAN
Familiarity with EV systems - battery management, inverters, drivetrain and charging (CCS/OCPP) - highly regarded
Experience with Git, structured testing and the software development lifecycle; awareness of functional safety (ISO *****) or vehicle cybersecurity standards is an advantage
Practical, hands-on approach - comfortable working on vehicles and on the production floor, not just at a desk
Strong problem-solving skills and a continuous improvement mindset
Good communicator, able to work cross-functionally with engineering, production, quality and suppliers
WHAT WE OFFER
Competitive salary package reviewed annually.
A genuinely unique opportunity to work with Australia's only local fully electric bus manufacturer.
Stable, full-time permanent role in a growing, future-focused business.
Supportive, down-to-earth team culture with a strong safety focus.
Exposure to cutting-edge electric vehicle manufacturing technology.
Modern Sydney-based production facility.
Opportunity to help shape the software and controls architecture of Australian-made electric buses.
Direct access to senior leadership and genuine influence on business outcomes.
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📌 Software Engineer (Sydney)
🏢 Custom Denning
📍 Sydney