Lead ICSS Engineer – LNG / Oil & Gas (H/F)

Mobenrooster; Paris; On-site; EUR 110,000 - 160,000; Full time

Job summary

MOBEN&ROOSTER is seeking a Senior ICSS Engineer for a major LNG engineering project. You will contribute to ICSS, DCS and SIS design, integration of vendor packages, and safety documentation across disciplines.

Ideal candidates bring 15+ years in ICSS engineering, LNG/O&G EPC experience, and strong Emerson control systems knowledge. English fluency is required; TÜV/QUALI-SIL safety certification is highly desirable.

Qualifications

• Engineering degree in Automation, Instrumentation, Control Systems, or related field.
• Minimum 15 years of ICSS engineering experience.
• Significant LNG projects and EPC environments experience.

Responsibilities

• Participate in basic and detailed engineering studies for ICSS, DCS, and SIS systems.
• Contribute to HAZOP reviews, SIL assessments, and safety studies.
• Prepare safety documentation (SRS, SIF registers, SIL calculations), Cause & Effect matrices, and logic diagrams.
• Manage technical interfaces between ICSS, instrumentation, process engineering, and vendor packages.
• Participate in validation and integration of safety systems.
• Ensure technical consistency across engineering disciplines and package interfaces.

Skills

ICSS engineering

DCS/SIS

Emerson control systems

Fire & Gas systems

IEC 61511

IEC 62443 familiarity

SIL calculation tools

Vendor package integration

Education

Engineering degree in Automation/Instrumentation/Control Systems

Tools

GRIF

ExSILentia

AEshield

Job description

Contract: Permanent Employment / Umbrella Company / Freelance

Location: Nanterre (92), France

Duration: 12 months

Start Date: As soon as possible

About Moben & Rooster

MOBEN&ROOSTER supports industrial clients on high-value technical projects, providing experienced engineers with expertise in engineering, multidisciplinary coordination, and project performance.

Joining MOBEN&ROOSTER means becoming part of a community of highly skilled engineering specialists, building strong professional relationships, and contributing to the industrial challenges of tomorrow.

As part of a major international LNG engineering project, we are looking for a Senior ICSS Engineer with strong expertise in control systems, functional safety, and industrial package integration.

Your Responsibilities

You will be involved in ICSS engineering activities, working closely with various engineering disciplines and equipment suppliers.

Your main responsibilities will include:

• Participate in basic and detailed engineering studies for ICSS, DCS, and SIS systems;
• Contribute to HAZOP reviews, SIL assessments, and safety studies;
• Prepare safety documentation (SRS, SIF registers, SIL calculations), Cause & Effect matrices, and logic diagrams;
• Manage technical interfaces between ICSS, instrumentation, process engineering, and vendor packages;
• Participate in the validation and integration of safety systems;
• Ensure technical consistency across engineering disciplines, maintaining a multidisciplinary approach and a comprehensive understanding of all engineering disciplines and package interfaces;

Your Profile

You are an experienced and versatile engineer with the ability to understand and address the technical challenges of complex LNG projects from a global perspective.

Technical Skills

• Strong expertise in ICSS, DCS, SIS, and Fire & Gas systems;
• Proven experience in LNG / Oil & Gas projects;
• Very good knowledge of Emerson control systems;
• Strong knowledge of IEC 61511 and familiarity with IEC 62443;
• Knowledge of ISA standards and SIL calculation tools (GRIF, ExSILentia, AEshield);
• Solid experience in multidisciplinary interfaces and vendor package integration.

TÜV Functional Safety certification is highly desirable (or equivalent QUALI-SIL certification).

Education & Experience

• Engineering degree in Automation, Instrumentation, Control Systems, or a related field;
• Minimum 15 years of experience in ICSS engineering;
• Significant experience in LNG projects and EPC environments.

Languages

• Fluent English.

Personal Skills

• Autonomy and strong technical expertise;
• Versatility and a comprehensive understanding of industrial facilities;
• Rigor, analytical thinking, and problem-solving skills;
• Ability to work across multiple engineering disciplines and resolve complex technical interface issues.