Senior Instrumentation & Control Engineer

Zachry Group•Downers Grove, IL

16h•$148,600 - $202,400•Hybrid

About The Position

Zachry Engineering Corporation is seeking a highly experienced Senior Instrumentation & Control Engineer to lead the design, development, and execution of instrumentation and control systems for complex oil and gas projects. The role requires technical leadership, deep domain expertise, and the ability to mentor multidisciplinary teams while ensuring safe, reliable, and cost-effective project delivery. The engineer will serve as a subject matter expert across upstream, midstream, and downstream projects, including refineries, petrochemical plants, and power plants. The position provides technical leadership for instrumentation and control systems, including DCS, PLC, SIS, and SCADA. It supports projects through FEED, detailed engineering, procurement, construction, commissioning, and startup, while coordinating with other engineering disciplines and interfacing with clients, vendors, and contractors. The engineer leads design reviews and helps ensure compliance with safety and regulatory requirements, industry standards, client requirements, and Zachry standards. The role also supports industrial control system cybersecurity and applies emerging practices in digitalization, automation, and control optimization. The position works in a general office environment and may be hybrid or office-based depending on project needs. Occasional travel to client sites, fabrication yards, or operating facilities is required. Physical demands include communication in person and through telephone and email; arm and hand steadiness; manual and finger dexterity; multi-limb coordination; oral expression and comprehension; and potentially lifting, carrying, and moving objects safely.

Requirements

Bachelor’s degree in Chemical Engineering, Electrical Engineering, Instrumentation Engineering, or a related field.
At least 13 years of instrumentation and control engineering experience in the oil and gas, petrochemical, or power industry.
Extensive experience with refinery, LNG, gas processing, or pipeline control systems.
Proven experience leading large-scale EPC or EPCM projects.
Strong knowledge of DCS and PLC platforms, such as Honeywell, Emerson DeltaV, Yokogawa, Siemens, and Rockwell.
Expertise in SIS design and SIL determination under IEC 61511 and IEC 61508.
Knowledge of instrument selection and specification for pressure, flow, level, temperature, and analyzers.
Knowledge of control valve sizing and performance analysis.
Knowledge of industrial networking and communication protocols, including Modbus, Profibus, Ethernet/IP, and OPC.
Strategic thinking and technical problem-solving skills.
Strong leadership and decision-making skills.
Excellent communication and client-facing abilities.
Ability to manage multiple priorities in a fast-paced EPC environment.
Commitment to safety, quality, and continuous improvement.

Nice To Haves

Professional Engineer (PE) license.
Familiarity with IIoT, advanced process control (APC), and digital transformation initiatives.

Responsibilities

Lead the design and specification of instrumentation and control systems, including DCS, PLC, SIS, and SCADA systems.
Provide technical oversight for I&C deliverables to ensure alignment with client requirements, industry codes, and Zachry standards.
Serve as the primary technical authority for complex and critical control systems, including SIS and process control strategies.
Review and approve engineering documents such as instrument datasheets, control narratives, loop diagrams, cause-and-effect matrices, and P&IDs.
Support project phases including FEED, detailed engineering, procurement, construction, commissioning, and startup.
Collaborate with process, mechanical, electrical, and operations teams to ensure integrated system performance.
Interface with clients, vendors, and contractors to resolve technical issues and support successful project delivery.
Lead HAZOP, SIL, and LOPA design reviews and ensure compliance with safety and regulatory requirements.
Ensure designs comply with ISA, IEC, API, NFPA, and OSHA requirements.
Support cybersecurity requirements for industrial control systems.
Maintain awareness of emerging technologies and apply best practices in digitalization, automation, and control optimization.
Mentor multidisciplinary teams and promote engineering excellence, safety, quality, and continuous improvement.