John Sisk & Son

Mechanical Lead

Location IE-Kildare-Leixlip
ID 2026-3165
Category
Building Services
Position Type
Full Time

Overview

 

 

We are seeking a Mechaical Lead -  Bulk & Specialty Gas Systems to join our Life Science team in Kildare.

 

This role is particularly suited to engineers with experience managing vendor packages such as:

  • Bulk Nitrogen Systems
  • VPSA Oxygen Generation Plants
  • Air Separation Units (ASU)
  • Hydrogen Generation & Distribution
  • Specialty Gas Systems
  • Cryogenic Storage & Distribution Systems
  • Semiconductor Process Utility Infrastructure

The position requires strong technical engineering capabilities combined with vendor management, project delivery and stakeholder coordination skills

 

John Sisk & Son have been building excellence as a family-owned international construction company by offering trust, certainty and value to our clients whilst being at the heart of change.

 

Responsibilities

  • Assist in the management bulk gas vendor packages from concept development through commissioning and handover.
  • Act as primary technical interface between equipment vendors and project stakeholders.
  • Review and coordinate vendor deliverables including:
    • PFDs
    • P&IDs
    • Layout Drawings
    • General Arrangements
    • Equipment Data Sheets
    • Control Philosophies
    • Cause & Effect Matrices
    • Utility Requirements
    • O&M Documentation
  • Monitor vendor progress against design, procurement, manufacturing and commissioning schedules.
  • Lead design review meetings at 30%, 60%, 90% and IFC stages.
  • Ensure timely closure of technical queries and action items.

Process Design Management

  • Review process designs for compliance with client specifications, industry standards and project requirements.
  • Challenge and optimise vendor designs to improve:
    • Reliability
    • Maintainability
    • Energy efficiency
    • Constructability
    • Operational flexibility
  • Review:
    • Process calculations
    • System redundancy philosophy
    • Turndown strategies
    • Pressure control schemes
    • Equipment selections
    • Utility consumption data
  • Ensure process hazards and operational risks are identified and mitigated.

Interface Management

  • Coordinate interfaces between vendor packages and:
    • Civil/Structural disciplines
    • Mechanical systems
    • Electrical systems
    • Instrumentation & Controls
    • Building Management Systems
    • Fire Protection Systems
    • Life Safety Systems
    • Facility Monitoring Systems
  • Manage battery limit definitions and interface documentation.
  • Ensure seamless integration between vendor-supplied systems and site infrastructure.

Procurement & Manufacturing Support

  • Support preparation of technical bid packages and vendor evaluations.
  • Participate in tender reviews and technical clarifications.
  • Review commercial and technical submissions.
  • Track procurement status and manufacturing progress.
  • Participate in factory inspections and Factory Acceptance Testing (FAT).
  • Review vendor quality documentation and manufacturing records.

Construction & Installation Support

  • Provide engineering support during installation and system integration activities.
  • Review shop drawings and construction work packages.
  • Support constructability reviews and installation sequencing.
  • Resolve field technical issues and RFIs.
  • Participate in:
    • Site inspections
    • QA/QC walks
    • Punch listing activities

Commissioning & Start-Up

  • Support development of commissioning plans and procedures.
  • Participate in:
    • Factory Acceptance Tests (FAT)
    • Site Acceptance Tests (SAT)
    • Start-up Activities
    • Performance Testing
    • Reliability Demonstrations
  • Assess performance against vendor guarantees and project requirements.
  • Coordinate operator training and handover activities.

Safety & Compliance

  • Review system compliance with:
    • Local statutory requirements
    • Semiconductor industry standards
    • Client engineering standards
    • Environmental regulations
    • Health & Safety requirements
  • Participate in:
    • HAZID
    • HAZOP
    • Design Risk Assessments
    • Process Safety Reviews
  • Promote a strong process safety culture throughout project execution.

Experience

 

Essential

  • Degree in one of the following:
    • Chemical Engineering
    • Process Engineering
    • Mechanical Engineering
    • Energy Engineering
    • Equivalent Engineering Discipline
  • 5+ years experience in process engineering or vendor package management.
  • Experience delivering industrial utility systems.
  • Strong understanding of:
    • Process Flow Diagrams (PFDs)
    • Piping & Instrumentation Diagrams (P&IDs)
    • Control Systems
    • Process Safety Principles

Desirable

    • Experience within semiconductor manufacturing facilities.
    • Experience with bulk gas suppliers.
    • Experience with:
      • VPSA Systems
      • ASU Systems
      • Cryogenic Storage Facilities
      • Hydrogen Infrastructure
    • Chartered Engineer status or working towards chartership.

Qualifications

Essential

 

  • Degree in Mechanical Engineering, Building Services Engineering or equivalent technical qualification
  • Demonstrated experience leading mechanical delivery on Tier 1 or equivalent projects
  • Valid Safe Pass and relevant health and safety training (e.g. CSCS or equivalent) 

Desirable

  •  Chartered Engineer status or working towards professional membership (e.g. Engineers Ireland, CIBSE, ASHRAE)
  • Postgraduate qualification in project management or construction management
  • Specialist training in GMP, cleanroom or regulatory compliance relevant to life sciences and technology sectors 

Additional Information

• Competitive salary 
• 26 days annual leave 
• Pension and benefits 
• Unlimited learning and development opportunities 
• Much more 

 

Our People and Recruitment Commitment 

At Sisk Group our people are at the heart of our success. We offer the chance to work with purpose, build a career with no limits and be part of a great team. 

All vacancies are managed directly by our Internal Recruitment Team. Unsolicited contact or speculative CVs from unapproved agencies will not be accepted and no introductory fees will apply. 

We are an equal opportunities employer. We welcome applications from all qualified candidates regardless of gender, race, ethnicity, disability, age, sexual orientation, religion or any other protected characteristic. Reasonable adjustments are available during the recruitment process. 

We know the confidence gap and imposter phenomenon can stop talented candidates applying. You do not need to meet every criterion – your skills and potential matter. Don’t hold back we want to hear from you. 

All recruitment materials comply with legal and regulatory requirements including the EU Pay Transparency Directive and the Equality Acts UK and Ireland. 

 

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