Assistant Manager, Piping

PaxOcean Group; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

PaxOcean Group in Singapore is seeking an experienced piping engineer to lead and execute detailed piping design from FEED handover through Issued for Construction (IFC). You will ensure technical accuracy, design quality, constructability, and compliance with international codes and yard standards, coordinating with process, mechanical, structural, E&I, production and construction teams.

You will oversee 3D model development (E3D, S3D, PDMS, Navisworks), GA drawings, isometrics, spools, METO,

Qualifications

• Diploma/Degree in Mechanical Engineering or related discipline.
• 8–10 years of experience in ME/OG piping engineering and design.

Responsibilities

• Lead detailed piping design from FEED handover through IFC issuance.
• Develop and review GA drawings, isometrics and spool drawings, support details.
• Ensure alignment between P&IDs, line lists, 3D models and fabrication drawings.
• Coordinate with Process, Mechanical, Structural, E&I, Production and Construction teams.
• Provide technical assurance, QA/QC support and mentor junior engineers.

Education

Diploma in Mechanical Engineering

Tools

PDMS

Navisworks

E3D

Job description

Job Summary

Responsible for leading and executing detailed piping engineering and design activities from FEED handover to Issued for Construction (IFC), ensuring technical accuracy, design quality, constructability, and compliance with applicable international codes, classification society rules, project specifications, and yard standards.

Responsible for leading and executing detailed piping engineering and design activities from FEED handover to Issued for Construction (IFC), ensuring technical accuracy, design quality, constructability, and compliance with applicable international codes, classification society rules, project specifications, and yard standards.

The role oversees 3D model development and reviews, piping layout and routing, isometric and spool drawings, pipe supports, and Material Take-Off (METO) preparation. It ensures consistency between P&IDs, line lists, 3D models, and fabrication drawings, while coordinating closely with Process, Mechanical, Structural, E&I, Production, and Construction teams to resolve design interfaces and minimize fabrication and installation issues.

The position also provides technical assurance, fabrication and site support, QA/QC assistance, and guidance to designers and junior engineers to maintain consistent engineering standards and deliver fabrication-ready, installation-friendly piping designs.

Key Responsibilities

• Detailed Engineering Execution
• Lead and perform detailed piping design activities from FEED handover through IFC issuance.
• Develop and review:
• Piping General Arrangement (GA) drawings
• Isometrics and spool drawings
• Support details
• Ensure design reflects process requirements, piping material specification, and yard standards.
• 3D Model Development & Review
• Oversee and validate 3D model development (E3D / S3D / PDMS / Navisworks).
• Conduct detailed model reviews to ensure:
• Accurate routing and layout
• Proper clearances and accessibility
• Compliance with safety and maintenance requirements
• Manage clash detection closure and ensure model integrity before drawing extraction.
• Spool & Isometric Validation
• Perform in-depth review of fabrication-level deliverables:
• Spool break logic
• Weld locations and joint numbering
• Field vs shop fabrication split
• Ensure drawings are fully fabrication-ready and installation-friendly.
• P&ID and Line Data Consistency
• Ensure strict alignment between:
• P&IDs
• Line lists
• 3D model and isometrics
• Verify:
• Valve types and orientation
• Tie-in points
• Line routing vs design intent
• METO Preparation & Control
• Lead preparation and checking of Material Take-Off (METO).
• Validate quantities for:
• Bulk materials (pipes, fittings, flanges)
• Valves and specialty items
• Monitor MTO accuracy to support procurement and construction.
• Supports & Constructability
• Ensure proper selection and placement of pipe support in coordination with stress and structural teams.
• Conduct constructability reviews considering:
• Installation sequence
• Lifting and access
• Modularization (if applicable)
• Optimize spool design for yard fabrication and site installation efficiency.
• Multi-Discipline Coordination
• Interface closely with:
• Process (design conditions, P&IDs)
• Mechanical (equipment nozzles)
• Structural (supports and platforms)
• E&I (cable trays, instruments)
• Resolve interfaces and avoid late-stage design conflicts.
• Technical Assurance & Quality
• Ensure compliance with:
• International Regulation: ASME B31.3 / B31.1, JIS, DIN, GB
• Class rules: ABS, DNV, LR…
• Project specifications
• Yard construction standards
• Review and approve deliverables before IFC release.
• Support and liaise with Production/Construction to settle site clarification, preparing Test package.
• Support QA/QC during design audits and checks.

Team Leadership & Mentoring

Guide designers, engineers and junior engineers during real project execution.

Regulatory training provided for designer, engineers and junior engineers in:

• Piping Design philosophy
• Piping/Mechanical Technical knowledge
• Class rules, international regulation codes
• Piping Detailing standards
• 3D modelling best practices
• 3D software skills

Review and consolidate team outputs.

Ensure consistency across all piping deliverables.

• Construction & Fabrication Support

Provide Engineering Support For

• RFIs / TQs
• Site queries
• Fabrication clarifications

Assist In Resolving Issues Related To

• Fit-up
• Field adjustments
• Material substitutions

Key Requirements

• Diploma/Degree in Mechanical Engineering, or other related discipline.
• Typically, 8-10 years of experience in Maine and O&G piping engineering/design with strong exposure to Detailed Design, Fabrication and Production Design, Construction & Commissioning Support.
• Proven experience handling IFC deliverables and Construction completion activities.

Education

Diploma in Mechanical Engineering or Engineering