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Mechanical Startup Engineer

The Client


Job Location:

Brownsville, OR - USA

Hourly Salary: USD 51 - 66
Posted: 30 September 2026 (Yesterday)
Application Deadline: 28 December 2026
Vacancies: 1 Vacancy

Job Summary

Mechanical Startup Engineer

Location: Brownsville TX

Onsite Flexibility: Onsite

Contract Details
  • Position Type: Contract
  • Contract Duration: 12 months
  • Pay Rate: $51.40$66.71 / Hour (USD)
  • Work Authorization: Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.
Job Summary

The ideal Mechanical Startup Engineer is a hands-on commissioning professional who has personally planned and executed pre-commissioning commissioning startup testing and initial operation of complex process systems. They possess broad multidisciplinary knowledge spanning mechanical electrical instrumentation controls and operations; can directly supervise startup craft activities; develop detailed execution and contingency plans; define temporary testing requirements; prepare complex isolations; and own the complete technical documentation and turnover process necessary to safely bring systems into operation.

Experience goes beyond oversight inspection or contractor management; has directly led and performed testing activities in the field. Demonstrated experience bringing systems from mechanical completion through integrated operation and turnover to operations. Deep understanding of complete process systems not just mechanical equipment. Understands mechanical electrical instrumentation controls and process interactions required for safe startup and operation. Capable of evaluating how system changes deficiencies or delays impact startup execution and overall plant readiness.

The client is partnering with NextDecade to support their vision to provide the world access to lower carbon intensive energy with their Rio Grande LNG (RGLNG) project in Brownsville Texas. RGLNG is a natural gas liquefaction and export terminal situated on a 984-acre site on the banks of the Brownsville ship channel. The first phase of the RGLNG project consists of three liquefaction trains two storage tanks and one marine berth. At full capacity the five-train facility will have a production capacity of 27 million tonnes per annum (MTPA).

The CSU Mechanical System engineer will be assigned systems on the project for which they will have full responsibility for commissioning. This will require coordinating with electrical instrumentation and control systems disciplines within the CSU organization to complete all required testing from component level through integrated operation with the rest of the facility. Testing to be performed will generally include but not be limited to: flushing piping systems performing vessel closeout inspections running in driven equipment (including vibration testing) such as pumps compressors fans etc. checkout and testing of prime movers such as diesels and turbines inspection and setting of safety valves testing heat exchangers performing ISTs logic testing of system functions (e.g. interlocks trips and permissives) and generally supporting other disciplines (electrical instrumentation controls and plant operations) to complete commissioning tests.

Key Responsibilities
  • Provide guidance and technical support to construction disciplines performing pre-commissioning activities.
  • Assesses and verifies the integrity of mechanical systems during Installation Commissioning and Startup to maximize system reliability and availability by carrying out inspections and construction support as needed.
  • Provide ES&H leadership to personnel assigned to them.
  • Complete testing per STCPs SWPPs project procedures and other specific procedures which may be required to be prepared in this position. Complete all test records data sheets etc. to fully document testing activities.
  • Ensures that applicable local/national safety codes requirements and standards are being complied with within assigned area of responsibility.
  • Actively participates in safety programs.
  • Receives administrative supervision and technical guidance from the Area Lead. Objectives are defined and results are subject to supervisory review.
  • Provides technical guidance and assigns work to project Commissioning and Startup technicians crafts and others who are performing specific assignments.
  • Coordinates between project engineering construction specialty staff groups clients and vendors.
  • Prepare FCR/Client/DRs as required to document as-built conditions and/or properly resolve deficiencies.
  • Plans schedules conducts or coordinates detailed CSU activities or maintenance including reviews for safety and execution.
  • Coordinate with and provide direction to supplier Technical Assistants to complete commissioning of vendor supplied equipment. Monitor supplier TA activities to ensure proper charging of TA time (i.e. ensure the client is not charged for TA time spent addressing the vendors own issues). Plan work accordingly and control the expenditure of TA time to stay within the budget constraints for each PO.
  • Ensure permanent plant materials are stored in accordance with specifications and project requirements. Responsible for testing of mechanical system(s) as per supplier and code requirements.
  • Participate in system turnover walkdowns both Construction and Client turnovers; initiate track and resolve punchlist items for assigned areas of responsibility.
  • Prepares and maintains Mechanical Spares for Commissioning and startup. Monitors Commissioning & Startup spares usage on the site and prepares Field Material Requisitions for permanent plant material to ensure that the CSU activities are productive.
  • Monitors the activities of subcontractors to ensure compliance with specifications and schedules.
Required Skills
  • Able to independently develop and execute Level 5 commissioning and startup plans.
  • Identifies prerequisites interfaces risks contingencies and recovery plans before field execution.
  • Anticipates construction deficiencies turnover gaps equipment issues and operational constraints and develops mitigation strategies proactively.
  • Direct experience managing craft personnel performing testing startup and operational activities.
  • Able to safely direct and coordinate multiple work fronts during dynamic commissioning activities.
  • Strong leadership presence with the ability to make sound technical decisions in the field.
  • Able to define temporary piping hoses filtration systems jumpers utilities chemical cleaning setups and other testing requirements necessary for successful execution.
  • Understands cost schedule and logistics implications of temporary commissioning infrastructure.
  • Understands electrical systems supplying power to equipment motor control schemes protection systems and energization requirements.
  • Understands instrumentation control logic interlocks permissives trips and operator interfaces necessary for startup and equipment protection.
  • Works effectively across mechanical electrical instrumentation controls process and operations disciplines.
  • Strong experience in pre-commissioning and commissioning of large rotating equipment centrifugal and reciprocating compressors multistage pumps diesel engines gas and steam turbines.
  • Heavy industrial direct hire construction experience in a supervisory role commensurate with the type of work to be undertaken preferably in a lump-sum turn-key environment.
  • Good knowledge and understanding of engineering systems applications of startup and operations; and previous experience in Mechanical Commissioning roles.
  • Broad knowledge of industry and regulatory standards and criteria pertinent to startup maintenance operations or testing.
  • Possesses effective communications skills crucial to motivating team members and presenting plans in a clear and concise manner. Collaborates well in a team environment.
  • Good leadership skills and able to supervise craft for testing startup and operations activity.
  • Good knowledge in MS Word Excel Visio PowerPoint and other relevant applications (Aconex Set Route).
  • Understands project workflows from design estimation construction administration and coordination and fabrication.
Preferred Skills
  • The ideal candidate possesses broad technical experience of commissioning startup operation maintenance and testing of Mechanical/Piping Systems/Components of Oil & Gas Processing Facilities.
  • Understanding of applicable work processes including Standard Work Process Procedures.
  • Familiarity with Standard Applications (BSAPs) including Setroute Unifier Aconex DSCS PTR Agile Navisworks and other automation tools which are used on projects.
  • Strong supervision experience including the ability to lead and manage change.
Education Requirements
  • University/B.S. degree in Mechanical Engineering plus 4 years of experience or 8 years of equivalent industry experience in lieu of a degree.
Required Experience
  • Minimum 4 years of experience with a B.S. in Mechanical Engineering or 8 years of equivalent industry experience in lieu of a degree.
Work Environment / Physical Requirements
  • Must be willing to work a flexible schedule if required including but not limited to nightshift or split shift.
  • Work includes field inspections and the physical ability to conduct field inspections which require the following activities: extensive walking in and around a construction site climbing ladders climbing scaffolding working on elevated platforms working on uneven surfaces and working in small or confined spaces.
  • Some lifting may be required.
  • Must have the ability to walk into and out of the project (enter/egress).
  • Must be able to use appropriate standard issued Personal Protection Equipment (PPE) required for each assigned task (i.e. harness life vest lift buckets etc.).
  • 100% Onsite No Telework Offered.
Benefits
  • Medical Vision and Dental Insurance Plans
  • 401k Retirement Fund
About the Client

This client is a privately held global engineering procurement and construction company with more than 125 years of experience delivering some of the worlds most complex and consequential infrastructure projects more than 25000 across 160 countries on all seven continents. The organizations portfolio spans energy and industrial infrastructure nuclear and environmental remediation government services and mining and metals with clients that include national governments global energy companies and the worlds largest public agencies. With a Glassdoor rating of 4.0 stars from nearly 2500 employee reviews and 78 percent of employees recommending the company to a friend the organization has earned genuine employee endorsement for its competitive compensation large-scale project access and strong career development opportunities. Teams here include civil and structural engineers project controls specialists procurement managers field engineers and nuclear and environmental remediation professionals who operate in demanding fast-paced environments delivering projects at a scale that is nearly impossible to find elsewhere.

About GTT

GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation a Native American-owned company in Alaska. We highly value diverse and inclusive workplaces and support Fortune 500 organizations across banking financial services technology life sciences biotech utilities and retail sectors throughout the U.S. and Canada.

Job Number: 26-14929 Industry: Engineering

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