Senior Embedded Software Engineer

The company: Johnson Controls is a global diversified technology and multi-industrial leader serving a wide range of customers in more than 150 countries. Our 135,000 employees create intelligent buildings, efficient energy solutions, integrated infrastructure and next generation transportation systems that work seamlessly together to deliver on the promise of smart cities and communities. Our commitment to sustainability dates back to our roots in 1885, with the invention of the first electric room thermostat. We are committed to helping our customers win and creating greater value for all of our stakeholders through strategic focus on our buildings and energy growth platforms. For additional information, please visit or follow us @johnsoncontrols on Twitter. We are seeking a highly motivated self-starter with a “can do” approach and solid embedded C software design and development skills to join our Traffic and Transportation division in the Traffic Product Development Team. This role is ideal for someone with a solid foundation in safety critical real time controls systems who thrives on providing innovative solutions for our customers. In this role, you will be working very closely with a multidisciplinary engineering team in a hands-on role at Rydalmere. This is an exciting opportunity to highlight your software real time design and development skills. If you’re passionate about delivering exceptional new and improved designs and want to be part of a business that values proactive thinking — this is the opportunity for you About this opportunity We need a Senior Embedded Software Engineer to perform the design and development of embedded control systems for Traffic Signal Controllers. This role requires expertise in safety-critical embedded software, digital hardware integration, and control systems design, with an emphasis on compliance with SIL2 (IEC 61508) safety standards. The successful candidate will combine strong low-level C programming skills with the ability to understand and influence hardware design (primarily digital electronics), while ensuring fail-safe and reliable performance for Traffic Signal Controllers. How you will do it Design and implement safety-critical embedded software for Traffic Signal Controllers in compliance with SIL2 (IEC 61508 / ISO 26262). Develop and validate conflict monitoring, phase control, and lamp monitoring algorithms for Traffic Signal Controllers. Collaborate with hardware engineers in the design of fault-tolerant digital interfaces (GPIO, latching outputs, watchdogs, memory functionality, reliable flash chip programming). Lead system integration across MCUs, SoCs, and RTOSs Develop and execute debug code to verify designs/ customer requirements. Implement and maintain communication protocols (SCATS, NEMA TS2, ITS standards, CAN, Ethernet) for roadside devices and central system integration. Develop web-based interfaces for local and remote-control functionality. Ensure robust secure communications, OTA firmware updates, and diagnostics for long-term field deployments. Participate in safety case documentation: hazard analysis, FMEA/FMELA, traceability, and compliance with certification bodies. Mentor junior software engineers and perform peer reviews of designs and code. Produce design, architecture, verification, validation and software release documentation. What we look for Essential: Proven experience (10 years+) developing embedded software for SIL2 (or higher) safety-critical systems, preferably in transportation, rail, or industrial control. Strong C programming skills for MCUs and real-time operating systems, with demonstrable ability implementing algorithms and debugging hardware/ software interactions using oscilloscopes, logic analysers, and bus analysers. Deep understanding of digital electronics and I/O design, including watchdogs, fail-safe states, redundancy, and EMC considerations. Familiarity with protocols and standards in the traffic and transport domain (SCATS, NEMA TS2, ITS, CAN, Ethernet, Modbus, RS-485). Hands-on experience with real-time simulation, and fault injection for validation of safety systems. Contribution to safety case documentation and engagement with external certification authorities/auditors. Demonstrated ability to integrate embedded Linux (desirable) for communications/ UI while keeping safety functions isolated on RT cores/ MCUs. Desirable: Experience with traffic control algorithms, conflict detection, phase timing, and intergreen intervals. Experience in secure boot, OTA update frameworks (RAUC/OSTree), and cybersecurity for embedded systems. Exposure to Yocto/Buildroot, RTOS (Micrium, FreeRTOS), or dual-core MCU + Linux SoC designs. Prior work in roadside, rail, transport systems or medical fields with harsh environment constraints. Only those candidates the Company (recruitment Agency Company) introduces to JCI by resumes on JCI’s Talent Acquisitions team’s explicit request will be deemed a candidate referred by the Company. Please note pre-employment checks – including reference checks, medical, criminal record check, and drug & alcohol testing – will form part of the eligibility process. Only applicants who have a current right to work in Australia will be considered. How to Apply Click on the APPLY button to submit your application in confidence. #LI-JS4 #J-18808-Ljbffr