Firmware / PLC engineer

19 hours ago

Burnaby, British Columbia, Canada Tersa Earth Full time

The
Firmware/PLC Engineer

role at Tersa Earth Innovations is critical to translating our proprietary synthetic biology platform, TersaClean, from scientific innovation into a commercially viable, industrial-scale reality. In this position, you'll act as the Firmware Lead , designing, developing, and deploying the core control systems that automate our metal recovery and waste neutralization processes. You'll be responsible for the entire control stack, from writing embedded firmware for sensors and microcontrollers to programming, configuring, and troubleshooting Industrial PLCs and SCADA interfaces.

Responsibilities

Firmware Development

  • Design, develop, and test embedded firmware for microcontrollers, sensors, and industrial control devices.
  • Write efficient, reliable code in languages such as C/C++, Python, or embedded C for real-time systems.
  • Conduct debugging, profiling, and optimization of firmware on target PLC hardware.

PLC Programming & Industrial Automation

  • Program, configure, and troubleshoot PLCs (e.g., Siemens, Allen-Bradley, Schneider, Beckhoff).
  • Create and maintain ladder logic, function block diagrams (FBD), structured text, and HMI/SCADA interfaces.
  • Integrate PLCs with sensors, actuators, VFDs, and industrial communication networks.
  • Validate and tune control loops, automated sequences, and safety interlocks.

System Integration & Testing

  • Collaborate with electrical, mechanical, and process engineers to integrate firmware and PLC systems into machinery or plant processes.
  • Develop test procedures and perform functional, performance, and stress testing of control systems.
  • Troubleshoot hardware/firmware issues and perform root-cause analysis for system failures.
  • Support commissioning, field deployment, and on-site debugging of equipment.

Documentation & Compliance

  • Create and maintain technical documentation including firmware specs, PLC logic diagrams, communication maps, and test reports.
  • Ensure control systems comply with relevant standards (IEC, ISO, safety regulations).
  • Manage version control, release notes, and firmware revision tracking.

Continuous Improvement

  • Optimize control logic, firmware performance, and system reliability.
  • Identify opportunities for automation, efficiency improvements, and advanced monitoring.
  • Research and implement new technologies, sensors, and communication protocols.

Qualifications

  • 2+ years in firmware/software engineering, focusing on sensor networks (e.g., pH, flow, current integration) and PLC/SCADA (e.g., Siemens, Allen-Bradley) in cleantech or industrial applications.
  • Proficiency in SCADA systems  for real-time monitoring, data logging, and control of bioprocesses.
  • Strong knowledge of communication protocols (e.g., Modbus, OPC-UA) and cybersecurity for industrial controls.
  • Ability to optimize software for low-power operations in modular designs.
  • Excellent debugging and testing skills for hardware-software integration
  • Scaled software for environmental/Industrial systems
  • Experience working in cross-functional teams under project management processes

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