Gas & Chemical Commissioning Engineer

LotusWorks is an Engineering Services provider specializing in managing Commissioning, Construction Services, Calibration, Operations & Maintenance scopes of work within global manufacturing facilities. LotusWorks operates globally across EMEA and North America partnering with the world's leading manufacturers across the Semiconductor, Pharmaceutical & Biologics, Medical Device and Data Centre sectors. Our team of Engineering and Technical professionals is immersed in cutting-edge technologies and innovations. LotusWorks is committed to a diverse and inclusive workplace, integral to our people-first approach.

The Gas & Chemical Commissioning Engineer plays a critical role in ensuring safe, reliable, and compliant startup of gas and chemical systems within a semiconductor manufacturing environment. This position is responsible for planning, executing, and documenting mechanical commissioning activities across all ASHRAE commissioning phases. The ideal candidate thrives in a fast-paced, technically complex environment and has strong experience commissioning high-purity gas and chemical distribution systems.

Responsibilities

Planning & Documentation (Pre-Commissioning Phase)

• Develop and implement mechanical commissioning plans aligned with ASHRAE guidelines.
• Review design documents, specifications, and IFC drawings while serving as Task Leader (TL).
• Create system verification checklists and detailed functional test procedures.
• Review, update, and enhance mechanical Sequences of Operation (SOO).
• Coordinate with Test and Balance (TAB) contractors to establish complete testing protocols.
  
  

Technical Execution (Commissioning Phases 2–6)

Phase 2 – Factory Witness Testing (ASHRAE Level 1)

• Lead factory acceptance tests (FAT) for mechanical, gas, and chemical equipment.
• Document test results and verify compliance with project specifications.
  
  

Phase 3 – Construction & Installation Verification (ASHRAE Level 2)

• Conduct visual inspections of gas and chemical installations, structural supports, and field routing.
• Verify compliance with mechanical codes and oversee pressure/hydrostatic and duct leakage testing.
• Confirm equipment access, service clearances, and installation of sensors and control systems.
  
  

Phases 4–5 – Operational & Functional Testing (ASHRAE Levels 3–4)

• Coordinate and oversee airflow and hydronic TAB activities.
• Test and verify chemical system controls, including chemical boxes, manifolds, and distribution systems.
• Perform Functional Acceptance Testing (FAT) in alignment with approved SOOs.
• Validate installation of gas systems including piping, tanks, controls, supports/hangers, labeling, and reporting documentation.
• Test and verify Life Safety Systems and ensure proper interaction with gas and chemical equipment.
• Any other duties or responsibilities that may be assigned to you in your role.
  
  

Skills Required

• 3 years of experience commissioning gas and chemical equipment in semiconductor or other mission-critical facilities.
• Strong understanding of ASHRAE commissioning principles (Levels 1–4).
• Hands-on experience with high-purity gas systems, chemical distribution systems, and related controls.
• Ability to interpret engineering drawings, P&IDs, specifications, and SOOs.
• Working knowledge of TAB activities, pressure testing, and Life Safety Systems.
  
  

Education / Licenses / Certifications

• Bachelor’s degree in Chemical or Mechanical Engineering (highly desirable, not required).
• Proof of education, licenses, and certifications will be required where applicable
  
  

Benefits

• Medical, Dental and Vision Insurance
• Life, Short-Term, Long-Term Disability Insurance
• Training and Education Assistance
• 401k Retirement Plan
• Extra Annual Leave with Years of Service
• Maternity/Paternity Leave
• Recognition Rewards
  
  

Eligibility for per diem is determined by company policy and is applicable only under specific circumstances, based on job location and travel requirements.

Weekly Per Diem

$1,400—$1,400 USD

LotusWorks is an equal opportunity employer and prohibits discrimination and harassment of any kind. We are committed to creating a diverse and inclusive workplace where all employees feel valued, respected, and empowered.