Engineer - Testing & Commissioning

Job Description STRATEGIC

• Support successful testing, commissioning, energization, and handover of substation projects in compliance with DEWA standards and project requirements.
• Ensure testing and commissioning activities are planned and executed in accordance with approved schedules, procedures, and quality requirements.
• Support achievement of project milestones through effective coordination with clients, consultants, OEMs, subcontractors, and internal stakeholders.
• Ensure compliance with DEWA safety regulations, permit-to-work requirements, and operational procedures during all commissioning activities.
• Support continuous improvement initiatives related to testing methodologies, commissioning procedures, and project execution practices.

OPERATIONAL

• Prepare testing and commissioning schedules aligned with overall project execution plans.
• Develop commissioning strategies, testing sequences, outage requirements, and resource plans.
• Review approved drawings, protection schemes, interlocking philosophies, cause-and-effect matrices, and commissioning procedures prior to execution.
• Coordinate commissioning requirements with construction, engineering, QA/QC, and client teams.
• Prepare testing documentation, method statements, inspection requests, risk assessments, and commissioning procedures.
• Execute testing and commissioning activities for 400kV GIS/AIS Substations, 220kV GIS/AIS Substations, 132kV GIS/AIS Substations, 33kV GIS Switchgear, 11kV Switchgear, Distribution and auxiliary systems
• Perform testing and commissioning of Power Transformers, Gas Insulated Switchgear (GIS), Air Insulated Switchgear (AIS), Circuit Breakers, Disconnectors and Earthing Switches, Current Transformers (CTs), Voltage Transformers (VTs/CVTs), Surge Arresters, Capacitor Banks, Shunt Reactors, Auxiliary Transformers, NER/NES Systems, HVDT Systems, LVAC Systems, DC Systems, Battery Chargers and Battery Banks.
• Execute testing and commissioning of protection and control schemes including Transformer Differential Protection, Distance Protection, Line Differential Protection, Busbar Protection, Restricted Earth Fault (REF) Protection, Standby Earth Fault (SBEF) Protection, Directional Overcurrent Protection, Earth Fault Protection, Circuit Breaker Failure Protection, Auto Reclose Schemes, Synchro Check Schemes, Under Voltage and Over Voltage Protection, Out-of-Balance Protection, Inter tripping Schemes, Load Shedding Schemes.
• Conduct relay testing using approved testing equipment and procedures.
• Verify protection settings, logic schemes, and coordination studies.
• Perform functional testing of control and interlocking systems.
• Execute testing and commissioning of SCADA Systems, SAS/SCMS Systems, RTUs, Gateway Systems, HMI Systems, IEC 61850 Networks, Fiber Optic Communication Systems, Time Synchronization Systems.
• Perform point-to-point testing, end-to-end testing, and signal verification with DEWA control centers.
• Coordinate telemetry, telecontrol, and communication testing activities.
• Verify communication protocols including IEC 61850, IEC 60870-5-101, IEC 60870-5-104, DNP3, and Modbus.
• Coordinate and execute remote-end testing activities for bay extension and modification projects.
• Verify inter tripping, tele protection, communication channels, and control functions.
• Support outage planning and execution for live substations.
• Ensure successful integration of new equipment into existing operational systems.
• Participate in FAT activities at OEM facilities.
• Review FAT procedures and test reports.
• Witness FAT and SAT activities with clients and consultants.
• Monitor closure of FAT and SAT observations.
• Ensure readiness of systems for site commissioning and energization.
• Identify and resolve technical issues arising during testing and commissioning activities.
• Analyze protection, SCADA, communication, and control system faults.
• Coordinate with OEMs and engineering team