Onsite PLC Commissioning Engineer (Siemens S7-300/400)

Hernshead Recruitment Ltd; Greater London; On-site; GBP 55,000 - 75,000; Full time

Job summary

Hernshead Recruitment Ltd is seeking an experienced PLC Commissioning Engineer to support an automotive automation project in the Greater London area. The role focuses on commissioning, testing and troubleshooting of Siemens PLC‑controlled equipment, with emphasis on S7-300 and S7-400 and Siemens Classic experience during live production launches.

You will work on-site, fault finding under pressure, and collaborate with electrical, controls and commissioning teams to keep the ramp‑up on schedule

Qualifications

• Hands-on experience as PLC commissioning/controls engineer.
• Proven Siemens Classic PLC experience with S7-300 and S7-400.
• Strong fault-finding and on-site commissioning under pressure.
• Automotive manufacturing experience desirable.
• Good knowledge of electrical and industrial control systems.
• Ability to work independently and in a team.

Responsibilities

• Commission and test Siemens PLC-controlled machinery.
• Program, modify and troubleshoot S7-300 and S7-400 PLCs.
• Use Siemens Classic / STEP 7 (Simatic Manager).
• Debug PLC software and fault-find during commissioning.
• Support electrical and controls troubleshooting on lines.
• Collaborate with electrical, controls and commissioning teams.
• Assist with machine integration, start-up and ramp-up.
• Identify and resolve PLC, automation and control faults.
• Maintain safety while working in live automotive environment.

Skills

PLC commissioning

Siemens Classic PLC

S7-300

S7-400

STEP 7 / Simatic Manager

Fault-finding / Troubleshooting

On-site / field service

Automotive manufacturing experience

Tools

Simatic Manager / STEP 7

Job description

Hernshead Recruitment Ltd is seeking an experienced PLC Commissioning Engineer to support an automotive automation project in the Greater London area. The role focuses on commissioning, testing and troubleshooting of Siemens PLC‑controlled equipment, with emphasis on S7-300 and S7-400 and Siemens Classic experience during live production launches.

You will work on-site, fault finding under pressure, and collaborate with electrical, controls and commissioning teams to keep the ramp‑up on schedule