Senior I&C Engineer

System One, Inc.; Downers Grove (IL); On-site; USD 165,000 - 248,000; Full time

Benefits offered by this job

Health insurance

Job summary

System One, Inc. in Downers Grove, IL seeks a Senior Engineer, I&C to lead the design, development, and execution of instrumentation and control systems for complex oil and gas projects.

This onsite contract role requires technical leadership, deep domain expertise, and the ability to mentor cross-disciplinary teams. You will own the design of DCS, PLC, SIS, and SCADA, provide technical oversight, review key documents, and drive safety-critical reviews (HAZOP, SIL, LOPA).

Qualifications

• Bachelor's degree in Chemical, Electrical or Instrumentation Engineering.
• 13+ years of instrumentation and control engineering experience in oil & gas, petrochemical, or power.
• Extensive experience with refinery, LNG, gas processing, or pipeline control systems.
• Proven experience leading large-scale EPC or EPCM projects.
• Professional Engineer (PE) license.
• Strong knowledge of DCS/PLC platforms (Honeywell, Emerson DeltaV, Yokogawa, Siemens, Rockwell).
• Expertise in SIS design and SIL determination (IEC 61511 / IEC 61508).
• Industrial networking protocols knowledge (Modbus, Profibus, Ethernet/IP, OPC).
• Familiarity with IIoT, APC, and digital transformation initiatives.
• Excellent communication and client-facing abilities.

Responsibilities

• Lead design and specification of instrumentation and control systems (DCS, PLC, SIS, SCADA).
• Provide technical oversight for all I&C deliverables per client requirements, codes, and standards.
• Serve as the primary technical authority for SIS, safety systems, and control strategies.
• Review instrument datasheets, control narratives, loop diagrams, P&IDs.
• Support all project phases from FEED to startup.
• Collaborate with process, mechanical, electrical, and operations teams.
• Interface with clients, vendors, and contractors to resolve technical issues.
• Lead design reviews (HAZOP, SIL, LOPA) ensuring safety and regulatory compliance.
• Ensure designs meet ISA, IEC, API, NFPA, OSHA standards.
• Support cyber security requirements for ICS.

Skills

Leadership

Decision-making

Client-facing

Cyber security awareness

Mentoring

Strategic thinking

Communication

Problem-solving

Safety-conscious

Project oversight

Education

Professional Engineer (PE) license

Bachelor's degree in Chemical Engineering, Electrical Engineering, Instrumentation Engineering

Tools

Honeywell DCS

Emerson DeltaV

Yokogawa

Siemens

Rockwell

Job description

Job Title: Senior Engineer, I&C

Location: Downers Grove, IL

Type: Contract

Work Model: Onsite

Hours: 40 hours/week

Overview

System One is e are seeking a high-caliber Senor I&C Engineer to lead the design, development, and execution of instrumentation and control systems for complex oil & gas projects. This role requires technical leadership, deep domain expertise, and the ability to mentor multidisciplinary teams while ensuring safe, reliable, and cost-effective project delivery.

Responsibilities

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

Requirements

• Bachelors degree in Chemical Engineering, Electrical Engineering, Instrumentation Engineering, or related field (required)
• 13+ years of experience in instrumentation and control engineering within the oil & gas or petrochemical industry or power industry.
• Extensive experience with refinery, LNG, gas processing, or pipeline control systems
• Proven experience leading large-scale EPC or EPCM projects
• Professional Engineer (PE) license
• Strong knowledge of DCS/PLC platforms (e.g., Honeywell, Emerson DeltaV, Yokogawa, Siemens, Rockwell)
• Expertise in SIS design and SIL determination (IEC 61511 / IEC 61508)
• Instrument selection and specification (pressure, flow, level, temperature, analyzers)
• Control valve sizing and performance analysis
• Industrial networking and communication protocols (Modbus, Profibus, Ethernet/IP, OPC)
• Familiarity with IIoT, advanced process control (APC), and digital transformation initiatives
• Strategic thinking and technical problem-solving
• 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

System One, and its subsidiaries including Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.