Senior PLC Software Engineer

Salary: £65,000 - 75,000 per year

Requirements

• Degree qualified in Electronic Engineering, Software Engineering or a related discipline, or equivalent industry experience
• Minimum 5 years experience within OEM, Tier 1 automotive, off-highway, heavy equipment or vehicle engineering environments
• Strong experience in software development and systems integration
• Proficient with CoDeSys, MATLAB, Simulink and Stateflow
• Experience developing embedded control systems and software architectures
• Strong understanding of CAN, Ethernet, CAN Open and J1939 communication protocols
• Experience delivering projects through the full development lifecycle
• Understanding of software development methodologies including the V-Model
• Experience with design verification and validation processes
• Excellent problem-solving and analytical skills
• Experience working with electric and hybrid vehicle technologies
• Knowledge of functional safety principles
• Experience with autonomous vehicle systems
• Familiarity with HIL and SIL testing environments
• Experience using Vector CANalyzer, CANfox or similar vehicle diagnostic tools
• Knowledge of FMEA, 8D and structured root cause analysis methodologies

Responsibilities

• Develop software architecture and functional specifications using platforms such as CoDeSys and Danfoss PLUS+1
• Translate vehicle functionality requirements into robust software solutions
• Design and implement advanced control strategies for electric, hybrid and conventional vehicle systems
• Support model-based development using MATLAB, Simulink and Stateflow
• Promote software standardisation, reusability and best practice across multiple vehicle platforms
• Define electronic architectures and hardware solutions
• Integrate ECUs, motors, drives, sensors, energy storage systems and vehicle control systems
• Ensure reliable communication using CAN, J1939, Ethernet and CAN Open protocols
• Support autonomous vehicle and auxiliary system integration projects
• Implement diagnostics, fault management and remote monitoring capabilities
• Perform vehicle-level testing and system validation
• Conduct Hardware-in-the-Loop (HIL) and Software-in-the-Loop (SIL) testing
• Carry out fault insertion testing and functional verification activities
• Support prototype development, workshop testing and field trials
• Ensure compliance with relevant safety and quality standards
• Support multiple engineering projects simultaneously
• Develop project plans and software delivery schedules
• Maintain detailed technical documentation and traceability records
• Participate in design reviews, risk assessments, FMEA and root cause investigations
• Contribute to continuous improvement initiatives across software and systems engineering functions

Technologies

• CODESYS
• Embedded
• Ethernet
• Hardware
• Support
• Matlab
• C++

More

We are an innovative engineering team based in Dungannon, Northern Ireland, working office-based on next-generation electric, hybrid and autonomous vehicle technologies. This senior role offers a salary of £65,000+ depending on experience, plus bonus, flexi-time, early finish every Friday and outstanding benefits including 30 days holiday, enhanced family leave, health cash plan, death in service cover, gym membership discounts, salary sacrifice schemes, high street discounts, branded clothing allowance, free will writing, funded seasonal events, fundraising and social events, bereavement leave, parental leave and long-term career progression. We offer the chance to work at the forefront of vehicle controls, automation, connectivity and software development, with exposure to advanced engineering programmes from concept through deployment.

last updated 27 week of 2026