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LotusWorks · 2 days ago

Gas & Chemical Commissioning Engineer

Sunnyvale, CA

Full-time

Onsite

Mid Level

$50/hr - $55/hr

3+ years exp

LotusWorks is an Engineering Services provider specializing in managing Commissioning and Construction Services within global manufacturing facilities. The Gas & Chemical Commissioning Engineer is responsible for ensuring the safe and compliant startup of gas and chemical systems in a semiconductor manufacturing environment, including planning, executing, and documenting commissioning activities.

Civil EngineeringSemiconductor

Growth Opportunities

H1B Sponsor Likely

Responsibilities

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

Lead factory acceptance tests (FAT) for mechanical, gas, and chemical equipment

Document test results and verify compliance with project specifications

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

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

Qualification

Commissioning gas systemsASHRAE commissioning principlesHigh-purity gas systemsChemical distribution systemsEngineering drawings interpretationTAB activities knowledgeMechanical Engineering degreeChemical Engineering degree

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