Senior MAC/ I&C Engineer

About us Worley is a global company of energy, chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable solutions. Purpose of the Role The Senior MAC / I&C Engineer is responsible for the engineering, design, review, coordination, and technical assurance of Measurement, Automation & Control (MAC) and Instrumentation & Control systems throughout the project lifecycle, including Concept, FEED, EPC, Commissioning, and Start-up phases. The role ensures compliance with project specifications, international standards, ADNOC requirements, and industry best practices while supporting safe, reliable, and efficient plant operations. Key Responsibilities - Lead the engineering and design of Instrumentation, Control, Automation, and Measurement systems for onshore and offshore Oil & Gas facilities. - Develop and review instrument datasheets, specifications, requisitions, and technical bid evaluations. - Prepare and review P&IDs, instrument index, I/O lists, control narratives, cause & effect charts, shutdown logic, and loop diagrams. - Lead the design and integration of DCS, PLC, SCADA, SIS/ESD, Fire & Gas (F&G), and package control systems. - Engineer and review fiscal metering, custody transfer, flow measurement, flow computers, tank gauging, and analyzer systems. - Coordinate multidisciplinary engineering activities with Process, Mechanical, Electrical, Civil, Piping, and Telecommunications disciplines. - Review vendor documents and ensure compliance with project specifications and client standards. - Support HAZOP, SIL, LOPA, FAT, SAT, and Integrated System Testing activities. - Provide technical support during construction, pre-commissioning, commissioning, and plant start-up. - Resolve technical queries, deviations, concession requests, and site engineering issues. - Ensure all engineering deliverables comply with ADNOC, IEC, ISA, API, IEEE, ISO, NFPA, and international engineering standards. - Participate in technical meetings with clients, licensors, EPC contractors, and vendors. - Mentor junior engineers and provide technical leadership within the engineering team. - Support project planning, scheduling, progress reporting, risk management, and technical assurance activities. Min Qualification & Experience - A bachelor’s degree in relevant engineering or equivalent from an accredited university with a minimum of fifteen (15+) years of relevant experience in the Oil & Gas or Petrochemical industry, including minimum five (5) years (preferred) in GCC region. - Must have at least three (3) years of experience in similar position for international major Oil & Gas or Petrochemical projects. - Experience within FEED & EPC experience required. - Experience in PMC roles. - Must have previous experience working in offshore projects - ADNOC Project experience is required . Technical Competencies - Instrumentation design and specification. - Process control systems. - Distributed Control Systems (DCS). - Programmable Logic Controllers (PLC). - SCADA systems. - Safety Instrumented Systems (SIS/ESD). - Fire & Gas Detection Systems. - Fiscal Metering and Custody Transfer Systems. - Flow Computers and Metering Skids. - Tank Gauging Systems. - Process Analyzer Systems. - Instrument Hook-ups and Loop Drawings. - Cause & Effect Matrix development. - SIL Assessment support. - FAT, SAT, and Commissioning. - Vendor package integration. - Hazardous Area Classification. - Control Valve and Instrument sizing review. - Industrial communication protocols (Modbus, Foundation Fieldbus, Profibus, HART, Ethernet/IP). Software Knowledge - SmartPlant Instrumentation (SPI/INtools) - AVEVA Engineering - AutoCAD - MicroStation - Navisworks - Microsoft Office Suite Codes & Standards - ADNOC Engineering Standards - IEC - ISA - API MPMS - AGA Standards - ISO - IEEE - NFPA - ATEX / IECEx Moving forward together We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values-inspired culture that unlocks brilliance through belonging, connection and innovation. We're building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard. And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology. Whatever your ambition, there's a path for you here. And there's no barrier to your poten

Min Qualification & Experience: A bachelor’s degree in relevant engineering or equivalent from an accredited university with a minimum of fifteen (15+) years of relevant experience in the Oil & Gas or Petrochemical industry, including minimum five (5) years (preferred) in GCC region. Must have at least three (3) years of experience in similar position for international major Oil & Gas or Petrochemical projects. Experience within FEED & EPC experience required. Experience in PMC roles. Must have previous experience working in offshore projects. ADNOC Project experience is required.