PLC Software Engineer

PLC Software Engineer

Mallaghan Dungannon, Northern Ireland, United Kingdom

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Company Overview

Originally established as a Civil Engineering Firm by Terry Mallaghan in the 1960s, an ongoing dedication to excellence and innovation has seen Mallaghan evolve into a leading global manufacturer of Aviation Ground Support Vehicles (GSE). We manufacture a comprehensive range of specialist products, including hi-lifts, aircraft maintenance lifts, stairs, and deicers, tailored to the needs of our international partners. Headquartered in Dungannon, Northern Ireland, and with a manufacturing facility in Newnan, Georgia;
Mallaghan employs a team of more than 500 people. With Ronan and Niall Mallaghan at the helm of the business, Mallaghan is committed to continued investment within the industry to ensure a range of innovative, sustainable GSE for airlines, airport and handling agents right across the world.

Overview & Purpose of the Role

As a PLC Software Engineer
, you will be at the forefront of the full software development lifecycle—driving innovation and ensuring the seamless integration of automation systems. From defining requirements and writing robust code to testing and operating cutting‑edge hardware, you'll take ownership of key projects that deliver results. Plus, you’ll mentor and guide fellow engineers, leading the way with your technical expertise to develop solutions that push the boundaries of automation technology.

Key Responsibilities Design, Program, and Configure Automation Systems

• Lead the design, programming, and configuration of PLC systems to meet dynamic operational needs.
• Integrate PLCs with broader control systems, working closely with electrical and mechanical engineers.

Optimize and Troubleshoot Systems

• Analyze, debug, and test control logic to enhance performance, efficiency, and system reliability.
• Troubleshoot system malfunctions to ensure minimal downtime, identifying and implementing corrective actions.

Collaborate & Innovate

• Work with cross‑functional teams to integrate PLC systems with Telematics, HMI interfaces, and other control systems.
• Continuously optimize and innovate control logic to improve the overall system efficiency.

Create Detailed Documentation

• Develop comprehensive documentation including wiring diagrams, ladder logic, I/O configurations, and version control to support ongoing management and troubleshooting.

Adhere to Quality and Safety Standards

• Follow ISO 9001 Quality Management System guidelines, maintaining safety interlocks and system backups to prevent failures.
• Ensure that the company’s reputation is maintained by adhering to industry regulations and safety procedures.

Contribute to Team Success

• Support the team with technical direction and mentoring, ensuring success in every stage of the project lifecycle.
• Take ownership of other duties as required to meet business needs.

Role Requirements Education & Experience

• HND or equivalent in electronic/electrical engineering (or relevant experience).
• 5+ years of experience in a design software role, working with complex automation systems.

Technical Expertise

• In-depth knowledge of IEC 61131‑3 and PLC programming standards.
• Proficient in Codesys and real‑time system debugging, control loop tuning, and signal processing.

Collaboration & Communication

• Excellent communication and interpersonal skills, capable of working both independently and in team settings.

Complex Problem Solving

• Ability to design and implement complex control architectures involving multiple PLCs, sensors, and actuators.

Employee Benefits Comprehensive Health & Wellbeing Support

• Health Cash Plan:
  Claim back on everyday healthcare costs like dental, optical, and physiotherapy treatments.
• Life Assurance:
  Peace of mind with life insurance coverage.

Financial & Retirement Support

• Pension Scheme:
  Secure your future with our competitive pension plan.
• Long Service Awards:
  Celebrating your dedication with rewards for loyalty and commitment.

Lifestyle & Discounts

• Discounted High Street Shopping:
  Save on your favourite brands with exclusive employee discounts.
• Gym Membership Discounts:
  Stay healthy and active with…