Facilities Engineer

Career Area: Manufacturing Job Description: Your Work Shapes the World at Caterpillar Inc.

When you join Caterpillar, you're joining a global team who cares not just about the work we do – but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here – we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.

Role Definition

We are seeking a PLC Engineer to deliver effective Operation and maintenance practices of paint shop, assembly shop and robotic control systems for production equipment’s to troubleshooting of Siemens, ABB & Mitsubishi controls, preventive & predictive maintenance to achieve production targets and quality standards with minimal downtime, perform projects, maintenance and collaboration with stake holders in a manufacturing plant. Job Description – PLC Engineer – Siemens | ABB | Mitsubishi – Paint Shop, assembly Shop & Robo Plant) Department: Maintenance Permanent Location: [CAT BCP - Thiruvallur] Reporting To: Maintenance Manager Experience 8+ years (Industrial Automation / PLC Service) Key Responsibilities PLC Programming & Troubleshooting Troubleshoot and modify PLC programs for: Siemens (S7-300/400, S7-1200/1500, TIA Portal) ABB (AC500 series) Mitsubishi (FX / Q / iQ series) Online debugging, fault diagnosis, and logic optimization Handling PLC CPU, I/O modules, communication faults Service & Commissioning Equipment’s breakdown support and root cause analysis PLC panel commissioning and startup support Machine retrofits, upgrades, and program backups/restoration Support preventive and corrective maintenance activities HMI & Communication HMI troubleshooting and minor development (WinCC, GOT, ABB HMI) Industrial communication protocols: Profibus / Profinet Ethernet/IP Modbus (RTU/TCP) Integration with VFDs, servos, sensors, and safety devices Documentation & Coordination Prepare service reports, logic change records, and backups Coordinate with production, maintenance, and OEM teams Provide technical guidance to technicians/operators Required Skills & Qualifications Technical Skills Strong hands-on experience in: Siemens PLC (Mandatory) ABB PLC Mitsubishi PLC Electrical panel understanding (schematics, wiring) VFDs (Siemens, ABB, Mitsubishi preferred) Basic SCADA knowledge (WinCC / ABB SCADA – added advantage) Qualification Diploma / BE / BTech in Electrical / Electronics / Instrumentation / Automation Soft Skills Strong troubleshooting mindset Ability to work independently during breakdowns Good communication and documentation skills Willingness to travel for field service support Preferred / Added Advantage Automotive / Manufacturing industry exposure Safety PLC knowledge Servo drives commissioning Experience in 24x7 production environments

Posting Dates: July 9, 2026 - July 21, 2026

Caterpillar is an Equal Opportunity Employer. Qualified applicants of any age are encouraged to apply

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