Jobs in the United States

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Added 22 mins ago
System Protection Engineer, Mid-Career
Siemens
Wendell, NC
…member of our Power Systems Engineering team, you will design, test, and commission robust protection and control schemes for medium and high voltage substations. You will play a vital role…
Added 22 mins ago
Principal Automation Engineer Optical Inspection SME
J&J Family of Companies
Wilson, NC
Senior Automation Engineer will lead internal team members, suppliers, OEMs, system integrators, Digital/IT partners, automation-system owners, and cross-functional stakeholders to deliver…
Added 33 mins ago
M
Senior Critical Environment Mechanical Engineer
Microsoft
ON, CA
- $114,400 to $203,900 CAD / year
Writes customized reports and functional specifications for an established product or product feature, based on audits and information from product development and verification processes.…
Added 37 mins ago
Software Tester / QA Engineer
Avalore, LLC
Arlington, VA
The Software Tester/QA Engineer will ensure the quality of all WDP System software by developing and executing comprehensive test plans and test cases. This person will coordinate with the…
Added 37 mins ago
M
Principal Design Verification Engineer
Microsoft
NC · TX · Raleigh, NC · Austin, TX · Raleigh · Austin
- $142,800 to $304,200 USD / year
…Microsoft cloud hardware. We are looking for an experienced engineer with a dedicated passion for customer focused solutions, insight and industry knowledge to envision and implement future…
Added 38 mins ago
Software Engineer, Level 1
Avalore, LLC
Annapolis Junction, MD
The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely…
Added 38 mins ago
Software Engineer, Level 2
Avalore, LLC
Annapolis Junction, MD
The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely…
Added 38 mins ago
Software Engineer, Level 3
Avalore, LLC
Annapolis Junction, MD
The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely…
Added 38 mins ago
Test Engineer, Level 2
Avalore, LLC
Annapolis Junction, MD
…acquisition plans, and system descriptions to develop evaluation and test plans and procedures, prepare for and conduct the data collection and analysis, and report status and results.…
Added 38 mins ago
Test Engineer, Level 3
Avalore, LLC
Annapolis Junction, MD
…acquisition plans, and system descriptions to develop evaluation and test plans and procedures, prepare for and conduct the data collection and analysis, and report status and results.…
Added 38 mins ago
Quality Engineer
Victor Sierra Aviation
Baldwin City, KS
As Quality Engineer, you’ll help make sure every part that leaves McFarlane Aviation meets the standards our customers and regulators expect. You’ll work hands-on across production,…
Added 39 mins ago
M
Senior Principal Verification Engineer
Microsoft
NC · TX · Raleigh, NC · Austin, TX · Raleigh · Austin
- $165,600 to $331,200 USD / year
We are looking for a Senior Principal Verification Engineer to join the team to support our mission and culture.
Added 40 mins ago
M
Principal Software Engineer
Microsoft
United States
- $142,800 to $304,200 USD / year
The Azure Event Grid engineering team is seeking a talented and highly motivated Principal Software Engineer to lead the design and implementation of the next generation of PubSub…
Added 53 mins ago
In Vehicle Test Engineer, Steering, Vehicle Software
Telsa Motors, Inc
Zanesfield, OH
…Full Self-Driving. We are seeking a Steering Controls Vehicle Test Engineer to shape the future of steering technology that makes Cybercab and unsupervised Full Self-Driving possible. You…
Added 53 mins ago
Development Engineering Technician II (C Crew/Day Crew)
First Solar Inc
Perrysburg, OH
…improvements to achieve performance goals. - May compile and analyze test data from performed testing. Education/Experience: - High School Diploma or equivalent and 10 years of relevant…
Added 53 mins ago
Development Engineering Technician II (C Crew/Day Crew)
First Solar Inc
Perrysburg, OH
…improvements to achieve performance goals. - May compile and analyze test data from performed testing. Education/Experience: - High School Diploma or equivalent and 10 years of relevant…
Added 54 mins ago
Software Systems Engineer
EXPANSIA
Dayton, OH
…human-machine interfaces, and all system level requirements and functional objectives to provide an integrated solution while considering the limitations imposed by practicality,…
Added 54 mins ago
Sr. Application Security Engineer / Ethical Hacker
The Sherwin-Williams Company
Cleveland, OH
The Senior Application Security Engineer position is responsible for planning and performing manual penetration testing of traditional and AI-enabled applications, identifying and…
Added 54 mins ago
Quality Engineer IV - 3058306
Apex Systems, Inc.
Cincinnati, OH
Job#: 3058306 Job Description: Title: Quality Engineer Location: Cincinnati, Ohio (On-site) Duration: 2+ Month to start with Role Overview An experienced Quality Engineer is required to…
Added 54 mins ago
Software Engineer II
Ampcus Incorporated
Cincinnati, OH
Added 1 hour ago
Senior Specialist, Systems Engineer - ELINT
L3Harris
Greenville, TX
L3Harris is seeking a Systems Engineer to support the design, development, integration, test, and sustainment of advanced capabilities. The ideal candidate brings a strong foundation in…
Added 1 hour ago
Lead Program Engineer
L3Harris
Greenville, TX
The individual Engineering Functional Task Leaders (Systems Engineering, Software Engineering, Aeronautical Engineering, Specialty Engineering, Logistic Engineering, Technical Publications,…
Added 1 hour ago
Mechanical Engineer – Product Development
Siemens
Grand Prairie, TX
Siemens Grand Prairie Manufacturing facility is looking for a Mechanical Engineer for their Product Development team.
Added 1 hour ago
Senior Java Developer
Toyota
Plano, TX
Toyota Financial Services Enterprise Platforms team is seeking a highly motivated Senior Software Engineer to help our growing Enterprise platform needs. The Senior Java Developer will…
Added 1 hour ago
Commissioning Protection Engineer
GE Vernova
Houston, TX
GE Vernova is seeking a skilled Protection Commissioning Engineer to lead and execute pre-commissioning, commissioning, startup, testing, and maintenance activities for protection and…

Decima International

Mechanical Commissioning Engineer (Hybrid)

Allen, TX, United States
Dallas, TX, United States

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Job details

Posting language: English
Posted: Nov 2, 2026

Original job description

Decima International is a professional services company, providing project management and controls services to clients in the United States and the Middle East. Our mission is to become the premier professional services provider across all industry sectors we are engaged in. To accomplish this, Decima International’s founders established a simple yet powerful formula:

Approach each client engagement as a partnership, create an environment that attracts the most talented professionals and allows them to flourish, and regulate growth to maintain excellence in our service standards.

If you are interested in a long and rewarding career working with high-profile clients on some of the most challenging projects in the world, then Decima is where you belong. At Decima, you will be able to explore incredible growth and professional development opportunities.

We are seeking a Mechanical Commissioning Engineer to lead the technical commissioning of mechanical systems on data center projects, from design review through Integrated Systems Testing. In this independent, owner-engaged role, you will develop test procedures, direct the field team, assess results against design intent, and report findings to the owner.

The ideal candidate will combine strong data center commissioning expertise with the ability to lead field testing, resolve technical issues, mentor technicians, and communicate findings objectively to owners, designers, contractors, and operators.

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.

QUALIFICATIONS

Required 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).

Preferred Qualifications:

Experience with liquid cooling and high-density AI deployments, including coolant distribution units (CDUs), facility water loops, and fluid quality.
Professional certification or license, such as PE, CxA, or CPMP.
Familiarity with ASHRAE Guidelines 0 and 1.1 and Uptime Institute practices.
Experience supporting multiple owner programs or international projects.

POSITION DETAILS:

Primary Location (On-site): Project sites across the United States. Position: Mechanical Commissioning Engineer. Travel: 50–75%, including extended assignments of three weeks or more. Travel, lodging, and per diem are provided per company policy. Site Rotation: Planned before each project; typically, two to three weeks on site and one week off site, subject to project requirements and delays. Working Conditions: Active construction and data center environments, including work at heights, in mechanical and electrical rooms, and in hot or noisy areas. Decima International is an Equal Opportunity Employer that is committed to the safety and well-being of all. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low-income status or any other status or characteristic protected by applicable law.

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More about this job

Skills

Develop test procedures
Procurement
Test procedures
Inspection
Analyse test data
Leadership
Reporting
Mechanical systems
Mechanical engineering
Technical drawings
Communication skills
Personal protective equipment

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