Mechanical Commissioning Engineer - Data Center Projects

Decima International; Dallas (TX); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Life and medical insurance (including‑

401K Plan

Annual bonus

Job summary

Decima International seeks a Mechanical Commissioning Engineer to lead field testing of data center cooling systems across U.S. project sites. The role emphasizes design review, test development, and independent reporting to owners, with travel and onsite rotations.

You will mentor technicians, coordinate with designers, contractors, and operators, and ensure safety and compliance while delivering commissioning milestones on schedule.

Qualifications

• 7 to 10 years of commissioning experience on mechanical systems.
• At least 5 years of experience on data center projects, including participation in at least one Integrated Systems Test.
• Bachelor’s degree in mechanical engineering or a related field, or equivalent experience.
• Strong knowledge of chilled water, heat rejection, air handling, pumping systems, and data center cooling design.
• Ability to develop test scripts and procedures and interpret mechanical drawings, P&IDs, and sequences of operation.
• Strong written and verbal communication skills, including the ability to report technical findings clearly and objectively when they challenge project expectations.
• Authorization to work in the United States and ability to pass a background check and drug screen.
• Ability to travel 50–75%, work extended site assignments, lift 50 lbs, and wear required personal protective equipment (PPE).

Responsibilities

• Review mechanical designs, specifications, and submittals against the owner’s project requirements, and identify commissioning concerns before equipment procurement.
• Develop commissioning plans, test procedures, and acceptance criteria for chilled water plants, heat rejection equipment, air handling systems, liquid cooling systems, and related equipment.
• Witness factory acceptance tests and lead site inspections, pre-functional checks, and Level 4 functional performance testing.
• Plan and lead the mechanical scope of Integrated Systems Testing, including cooling failure scenarios, restart sequences, and thermal ride-through under load.
• Review sequences of operation and controls integration with the controls engineer.
• Analyze test data, resolve technical disputes, and determine whether results meet design requirements and acceptance criteria.
• Track deficiencies through closure, report commissioning progress to the owner and project leadership, and prepare test reports.
• Lead and mentor commissioning technicians and coordinate activities with contractors, designers, and operators.
• Follow site safety procedures and applicable testing and permit requirements.
• Maintain accurate and independent reporting in accordance with Decima’s conflict-of-interest and independence policy, without influence from contractors or equipment suppliers.

Skills

Commissioning experience

Data center experience

Communication skills

Technical reporting

Willingness to travel

Education

Bachelor’s degree in mechanical engineering

Tools

P&IDs interpretation

Job description

Decima International seeks a Mechanical Commissioning Engineer to lead field testing of data center cooling systems across U.S. project sites. The role emphasizes design review, test development, and independent reporting to owners, with travel and onsite rotations.

You will mentor technicians, coordinate with designers, contractors, and operators, and ensure safety and compliance while delivering commissioning milestones on schedule.