DCS Testing Engineer

Larsen & Toubro (L&T); Bengaluru; On-site; INR 900,000 - 1,200,000; Full time

Job summary

Larsen & Toubro (L&T) is seeking a test engineer to develop and execute test plans for DCS, PLC, SCADA, and RTU systems in Bengaluru. You will validate Modbus, DNP3, MQTT, OPC UA, IEC61850, IEC60870, and Profinet protocols while identifying defects and performing root cause analysis.

The role involves driving test automation, collaborating with development and support teams, and ensuring high product quality with reduced post-release issues. Prior experience in power or oil & gas is preferred.

Qualifications

• Experience with Honeywell Experion PKS / DCS systems.
• Proficient PLC programming with Ladder Logic and FBD.
• Experience with virtualization environments.
• Hands-on experience with test automation tools.
• Experience in power plant or oil & gas domains.

Responsibilities

• Develop and execute test plans, test procedures, and validation strategies.
• Perform system-level testing for DCS, PLC, SCADA, and RTU systems.
• Validate communication protocols such as Modbus, DNP3, MQTT, OPC UA, IEC61850, IEC60870, and Profinet.
• Identify defects, perform root cause analysis, and support issue resolution.
• Drive test automation and simulation-based testing wherever applicable.
• Collaborate with Development, Architects, Project Engineering, and Support teams.

Skills

Honeywell Experion PKS

DCS

PLC Programming

Ladder Logic

FBD

Control Builder

Configuration Studio

Power Plant Experience

Oil & Gas Experience

Virtualization

Test Automation

Tools

Modbus

DNP3

MQTT

OPC UA

IEC61850

IEC60870

Profinet

Job description

Role & responsibilities

• Develop and execute test plans, test procedures, and validation strategies.
• Perform system-level testing for DCS, PLC, SCADA, and RTU systems.
• Validate communication protocols such as Modbus, DNP3, MQTT, OPC UA, IEC61850, IEC60870, and Profinet.
• Identify defects, perform root cause analysis, and support issue resolution.
• Drive test automation and simulation-based testing wherever applicable.
• Collaborate with Development, Architects, Project Engineering, and Support teams.
• Ensure high product quality and reduce post-release defects.

Preferred candidate profile

• Honeywell Experion PKS / DCS
• PLC Programming (Ladder Logic, FBD)
• Control Builder / Configuration Studio
• Power Plant or Oil & Gas Domain Experience
• Virtualization Environment Experience
• Test Automation Tools