Software Test Engineer

Job Summary:

Job Description: PLC / SCADA / DCS –HMI Testing Engineer

Role: PLC/SCADA/HMI/DCS Testing Engineer

Experience: 3+ Years

Location: Bengaluru

Employment Type: Full-time position

Industry: Industrial Automation / Manufacturing / Oil & Gas / Process Control

Key Responsibilities:

• Perform testing, validation, and verification of PLC, SCADA, HMI, and DCS-based automation systems.
• Review Functional Design Specifications (FDS) and ensure testing aligns with customer requirements.
• Conduct IO testing, FAT (Factory Acceptance Test), and SAT (Site Acceptance Test).
• Test automation logic for PLC/DCS, including sequences, alarms, interlocks, and control loops.
• Validate SCADA/HMI graphics, tags, navigation, trends, and alarm displays.
• Develop and execute test plans, test cases, and test scripts for automation systems.
• Document test results, prepare reports, and track defects to closure.
• Coordinate with development, commissioning, and project teams to resolve issues.
• Ensure compliance with safety standards (IEC, ISA) and customer specifications.
• Support simulation testing using tools, mockups, or virtual PLC environments.
• Participate in field testing when required.

Required Skills & Technical Expertise:

• Hands-on experience with PLC platforms like Siemens, Allen Bradley, Schneider, ABB, Mitsubishi, GE, Honeywell, etc.
• Expertise in SCADA/HMI systems such as Wonderware, WinCC, iFIX, Citect, FactoryTalk View, Intouch, etc.
• Knowledge of DCS systems (Honeywell Experion, Emerson DeltaV, Yokogawa Centum, ABB 800xA, etc.).
• Strong understanding of automation protocols (Modbus, Profibus, Profinet, Ethernet/IP, OPC, HART, etc.).
• Ability to read and understand P&IDs, loop diagrams, wiring drawings, cause & effect matrices.
• Good debugging, troubleshooting, and problem-solving abilities.
• Experience with test documentation, QA processes, and version management tools.

Good to Have:

• Experience in simulation tools for PLC/DCS testing.
• Knowledge of safety systems (SIS, ESD, F&G).
• Exposure to industrial networks and cybersecurity basics.
• Familiarity with scripting languages (Python, VB, etc.) for automation of tests.