Senior Service Engineer

Senior Service Engineer Siemens Automation, PLC/SCADA & Water Solutions United Arab Emirates, Abu Dhabi We empower our people to stay resilient and relevant in a constantly evolving world. We re looking for people who are always searching for creative ways to grow and learn. People who want to make a real impact, now and in the future. Does that sound like you? Then it seems like you d make an outstanding addition to our vibrant international team. Siemens Digital Industries is a leading innovator in automation and digitalization. Our mission is to support customers in maximizing growth, profit opportunities and ecological footprint in the discrete and process industries. Ready to create your own journey? Join our Digital Industry as the Senior Service Engineer and help us transform the everyday by finding solutions and making the world a more inquisitive place for tomorrow. You ll make an impact by:

Senior Service Engineer Siemens Automation, PLC/SCADA & Water Solutions

1. Role Purpose

The Senior Service Engineer provides hands-on technical service and lifecycle support for Siemens industrial automation systems at customer sites across the UAE and, when required, the wider GCC, Middle East and EMEA region. The role focuses on maintenance, troubleshooting, breakdown support, commissioning, modification, upgrades and migration of Siemens PLC, HMI and SCADA systems , particularly in water and wastewater applications & Industry . The successful candidate must be capable of independently diagnosing complex automation faults in live operating plants, identifying root causes, implementing corrective actions and clearly communicating technical findings. This is primarily a hands-on Siemens PLC/HMI/SCADA service engineering role. It is not primarily a project management, design engineering, PCS 7, or OT cybersecurity position.

2. Key Responsibilities

The Senior Service Engineer will:

• Perform preventive and corrective maintenance, troubleshooting and breakdown support for Siemens PLC, HMI and SCADA systems.
• Diagnose PLC hardware/software, I/O, HMI/SCADA, industrial communication, instrumentation and electrical/control interface faults.
• Support SIMATIC S7-300, S7-400/400H/400FH, S7-1200, S7-1500 R/H, S7 Safety Systems, STEP 7, TIA Portal, WinCC and Siemens HMI/Comfort Panels .
• Analyze, troubleshoot and modify existing, legacy and unfamiliar PLC/HMI applications.
• Perform approved software modifications, commissioning, recommissioning, functional testing and system recovery.
• Prepare, verify and restore PLC/HMI/SCADA software backups and perform hardware replacement and recommissioning.
• Support lifecycle upgrades and migrations of installed Siemens automation systems.
• Troubleshoot PROFINET, PROFIBUS, Industrial Ethernet, Modbus and related industrial communication interfaces .
• Diagnose interactions between PLC/SCADA systems, field instrumentation, control loops, motors, valves and other control interfaces.
• Investigate recurring failures, identify root causes and recommend corrective or preventive actions.
• Prepare clear technical service reports covering findings, actions, recommendations and outstanding risks.
• Communicate and coordinate effectively with customers, internal engineering teams, OEMs and other stakeholders.
• Work independently during plant breakdowns, shutdowns, outages and other time-critical interventions.
• Follow applicable HSE, cybersecurity, change-control and customer site procedures.
• Provide technical guidance to junior engineers when required.

3. Job Travel Needs & Site Requirements

The successful candidate must be:

• Willing to work regularly at customer sites and travel extensively within the UAE.
• Willing to undertake onshore, remote and offshore assignments where required.
• Willing to travel within the GCC, Middle East and EMEA based on future business requirements.
• Available for planned shutdowns, commissioning and time-critical service interventions when required.
• Comfortable working in operational industrial facilities under applicable HSE requirements.
• Holder of a valid UAE driving licence.

4. Essential Technical Competencies & Skills

Candidates must demonstrate practical, hands-on capability , not only theoretical knowledge or general familiarity.

Siemens PLC, HMI & SCADA

• Strong hands-on experience with:

• SIMATIC S7-300, S7-400/400H/400FH, S7-1200 and S7-1500

• STEP 7 and TIA Portal

• Siemens WinCC and HMI/Comfort Panels

• PLC hardware/software diagnostics and online troubleshooting

• Program analysis and approved modifications

• HMI/SCADA alarm, tag and communication troubleshooting

• Hardware replacement and recommissioning

• Backup, restoration and system recovery

• Commissioning and recommissioning

• Experience with SIMATIC S7 Safety Systems is highly desirable .

Industrial Communications

• Practical troubleshooting knowledge of:

• PROFINET and Industrial Ethernet

• PROFIBUS DP/PA

• Modbus TCP/RTU

• OPC/OPC UA, where applicable

• Diagnosis of communication failures and configuration/replacement of relevant industrial network components

Troubleshooting Capability

• Strong, methodical troubleshooting capability across:

• PLC hardware and software

• Local and remote I/O

• HMI and SCADA

• Industrial communications

• Field devices and instrumentation

• Electrical and control interfaces

• Windows-based automation systems

• Existing, legacy and unfamiliar installations

Water & Wastewater Experience

• Practical experience in one or more of the following is strongly preferred:

• Water and wastewater treatment plants

• Pumping stations

• Water transmission and distribution facilities

Desired Candidate Profile

• Candidates must demonstrate practical, hands-on capability , not only theoretical knowledge or general familiarity.
• Strong hands-on experience with: SIMATIC S7-300, S7-400/400H/400FH, S7-1200 and S7-1500, STEP 7 and TIA Portal, Siemens WinCC and HMI/Comfort Panels, PLC hardware/software diagnostics and online troubleshooting, Program analysis and approved modifications, HMI/SCADA alarm, tag and communication troubleshooting, Hardware replacement and recommissioning, Backup, restoration and system recovery, Commissioning and recommissioning.
• Experience with SIMATIC S7 Safety Systems is highly desirable .
• Practical troubleshooting knowledge of: PROFINET and Industrial Ethernet, PROFIBUS DP/PA, Modbus TCP/RTU, OPC/OPC UA, where applicable.
• Diagnosis of communication failures and configuration/replacement of relevant industrial network components.
• Strong, methodical troubleshooting capability across: PLC hardware and software, Local and remote I/O, HMI and SCADA, Industrial communications, Field devices and instrumentation, Electrical and control interfaces, Windows-based automation systems, Existing, legacy and unfamiliar installations.
• Practical experience in one or more of the following is strongly preferred: Water and wastewater treatment plants, Pumping stations, Water transmission and distribution facilities, Desalination facilities, Utility and industrial water systems.
• Candidates should preferably understand automation associated with pumps and motor control, valves and actuators, process instrumentation, interlocks and permissives, sequential control, remote stations and PLC/SCADA monitoring and control .
• Practical knowledge and troubleshooting experience with common flow, pressure, level and temperature instrumentation , including electromagnetic flowmeters, preferably Siemens SITRANS MAG or equivalent .
• Experience should include configuration, commissioning, diagnostics, measurement troubleshooting, verification/calibration, signal and I/O troubleshooting, and PLC/SCADA integration.
• Able to work independently and safely at operational customer sites , apply systematic and logical troubleshooting, remain calm during breakdowns, communicate faults, root causes, risks and corrective actions clearly, protect customer operations when implementing automation changes, recognize when specialist escalation is required, produce concise technical reports, and work professionally within customer and multicultural teams.
• Experience supporting major utilities, municipal authorities, EPC contractors or similarly demanding end users in the GCC/Middle East is highly valued.
• Experience in environments comparable to TAQA, DEWA, EWEC, EtihadWE, SEWA, SWA/SWCC, KAHRAMAA or other regional utilities is relevant.
• Previous employment with these specific organizations is not required .
• Siemens PCS 7 / DCS and PCS 7 Safety Systems, ESD and F&G systems, Advanced industrial network architecture, OT/industrial cybersecurity, ISA/IEC 62443 or NIST SP 800-82 familiarity, Industrial IoT or cloud-connected automation, Petrochemical or oil & gas experience, Relevant Siemens technical certifications, Relevant industrial control system cybersecurity certifications are advantageous but not mandatory.
• Strong hands-on Siemens S7, STEP 7, TIA Portal and WinCC capability is significantly more important for this position.
• Bachelor's degree in one of the following disciplines, or a closely related engineering discipline (Electrical Engineering, Electronics Engineering, Automation / Control Engineering or Instrumentation Engineering).
• Preferably 5+ years of relevant industrial automation and/or service engineering experience , with significant hands-on Siemens PLC/HMI/SCADA exposure.