Mechanical (Rotary) System Engineer
Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Jul 23, 2026. Air Liquide scores B on the Alion truth index.
As part of InnoTech, the AL Maritime activity connects a wide range of global markets to essential molecules across borders and oceans. Air Liquide Maritime is organized along four business units, namely Offshore Energies, Cryogenic Supply, Global Rare Gases and Global Helium, and is also supporting OCEOS, a joint venture to offer CO2 shipping and barging services for CCS projects across Europe. The organisation has grown significantly over the last few years and regroups 10 sites located in 9 countries with more than 200 employees.
Air Liquide Maritime Sdn Bhd specializes in cryogenic tank and equipment rental for the offshore and maritime industries as well as in cryogenic transport of molecules, and provides a full range of repair and testing services.
Air Liquide is seeking a highly skilled and motivated Senior Turbo Expander Skid Design Engineer to join our Global Engineering & Construction division. In this role, you will be the technical lead responsible for the design, integration, and packaging of turbo expander rotating machinery and their associated auxiliary skids (lube oil systems, seal gas panels, and process piping).The candidate should have good understanding of mechanical design, system integration, layouting & packaging with strong proficiency in Solidworks, Autocad, familiar with industry standards such as ASME, API and ANSI. The candidate is also responsible for developing project deliverables, design reviews and collaborating with other cross function teams to meet the project requirements including the deadlines
Your expertise will directly support Air Liquide’s world-class Cryogenic Air Separation Units (ASUs), Hydrogen Liquefaction plants, and Carbon Capture & Clean Energy initiatives. You will bridge the gap between complex aerodynamic turbomachinery and robust, shippable, modular skid packages.
How will you CONTRIBUTE and GROW?
Mechanical Packaging & Detailed Design
- Develop complete skid layouts for turbo expanders, including structural, interconnecting process/utility piping, lube oil consoles, and seal gas conditioning systems.
Perform structural analysis including lifting lugs calculations, and structure to withstand transit, seismic, and operational dynamic loads.
Generate detailed system assembly drawings, process flow diagrams, fabrication drawings, Bill of Materials (BOMs), and technical specifications for the modular skid assembly.
Create and review the submission of design documentation.
Integrate instrumentation, valves and electrical junction boxes onto the skid package in compliance with hazardous area classifications.
Lead the development of standardized mechanical layouts and modular designs for turboexpander skid systems (including lubrication consoles and dry gas seal systems) to improve engineering efficiency, reduce lead times, and lower manufacturing cost.
Technical Specifications & Vendor Management
Draft comprehensive technical specification sheets for turbo expanders and auxiliary equipment based on customer’s process requirements and Aero design.
Perform and validate critical mechanical, fluid, and thermal calculations for turboexpander auxiliary systems, including piping hydraulics, pressure drop analysis, heat exchanger sizing, safety relief valve (PSV) sizing, and structural lifting/loading criteria in compliance with applicable standards
Evaluate vendor proposals, perform technical bid tabulations, and serve as the primary technical point of contact with AL Turbo team/division.
Review performance curves, rotordynamic limits, and system P&IDs provided by AL Turbo and auxiliary equipment suppliers to verify design integrity and enforce alignment with company and client requirements
Participate in Factory Acceptance Testing (FAT) and mechanical running tests at vendor facilities, as needed.
Cross-Functional Coordination & Safety
Collaborate closely with various engineering disciplines (process, instrumentation, electrical) and project management to ensure seamless boundaries, interfaces and adherence to project goals and objectives.
Lead and participate in HAZOP, and 3D Model Reviews to guarantee the inherent safety, operability, and maintainability of the skid package.
Ensure all designs rigorously adhere to Air Liquide's industrial safety guidelines and environmental regulations.
Continuous Improvement & Knowledge Sharing:
Leverage experience from previous projects and commissioning issues to implement improvements in system design and development.
Actively contribute to local and global Engineering & Construction (E&C) development efforts by sharing best practices, lessons learned, and innovative design solutions.
Stay up to date on advancements in industry standards, mechanical design, and system engineering to continuously improve system designs.
Are you a MATCH?
Education & Experience
Bachelor’s Degree in Mechanical Engineering.
Minimum of 10+ years of dedicated experience in the design, packaging, and integration of high-speed rotating equipment (turbo expanders, centrifugal compressors, or steam turbines) within the oil & gas, petrochemical, or industrial gas sectors.
Proven track record of delivering modularized skid packages from conceptual design through to fabrication.
Technical Competencies
Knowledge of Codes & Standards: Understanding of API 617 (Axial and Centrifugal Compressors and Expander-compressors), API 614 (Lubrication, Shaft-sealing, and Oil-control Systems), ASME B31.3 (Process Piping), and ASME Section VIII (Pressure Vessels).
Software Proficiency:Strong hands-on experience with 3D CAD modeling tools (e.g., Aveva E3D/PDMS, SolidWorks) and structural analysis software (e.g., Solidworks, ANSYS).
Cryogenic Insight: thorough understanding of material selection and thermal insulation requirements for cryogenic applications (temperatures below -150°C).
Preferred
Strong experience in turbo expander design and process engineering.
Understanding of structural design.
Software: Google Suite
Industry experience with risk mitigation/quality compliance/process governance).
Understanding of relevant codes and standards for various geographies
Chinese language proficiency is preferred
About Air Liquide
A world leader in gases, technologies and services for Industry and Health, Air Liquide is present in 78 countries with approximately 64,500 employees and serves more than 3.8 million customers and patients. Oxygen, nitrogen and hydrogen are essential small molecules for life, matter and energy. They embody Air Liquide’s scientific territory and have been at the core of the company’s activities since its creation in 1902.
Our Differences make our Performance
At Air Liquide, we are committed to build a diverse and inclusive workplace that embraces the diversity of our employees, our customers, patients, community stakeholders and cultures across the world.
We welcome and consider applications from all qualified applicants, regardless of their background. We strongly believe a diverse organization opens up opportunities for people to express their talent, both individually and collectively and it helps foster our ability to innovate by living our fundamentals, acting for our success and creating an engaging environment in a changing world.