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PRINCIPAL MECHANICAL ENGINEER (PE REQUIRED)
Gulf Interstate EngineeringUnited States🇺🇸United StatesPosted 16 Aug 2026
Why This Role Stands Out
Leverage your extensive experience as a Principal Mechanical Engineer to lead critical projects within a respected global energy firm, enjoying hybrid flexibility and significant technical autonomy. You'll thrive here if you are a self-motivated engineer ready to guide complex designs and contribute to impactful energy infrastructure development. Apply now to shape the future of energy engineering with Gulf Interstate Engineering.
Quick Overview
Work Type
Hybrid
Level
Leader
Job Description
Position Title: Principal Mechanical Engineer
Location: Houston, TX
Gulf Companies has served the global energy industry since 1953 by supporting the complete project lifecycle and developing valued business partnerships to ensure the success of the project. Our worldwide experience and multi-disciplined capabilities encompass all aspects of the Engineering, Procurement, Construction Management, Field Inspection, GIS Integrity, Staffing Services and more.
Position Description
The Principal Mechanical Engineer is knowledgeable in multiple pipeline facilities and is qualified to handle large projects. Works independently. He/she has a wide latitude of technical authority with full work responsibilities as well as limited administrative responsibilities within each project. He/she is the primary producer of mechanical deliverables for the project scope, but on some projects may also need to assign, guide, and review the work of lower-level engineers and designers. Work is periodically reviewed by the Chief Mechanical Engineer for accomplishment of objectives.
Essential Functions
ADDENDUM: ENGINEERING FACILITIES DEPARTMENT
MECHANICAL ENGINEERING GROUP FUNCTIONS
Mechanical Engineering for pipeline facilities is a highly specialized group whose function is to provide engineering-design services covering:
Mechanical Equipment and Piping System Design - Develops the optimum systems based upon desired performance, space constraints, reliability, maintainability, flexibility, and cost.
Calculations and Studies - Performs calculations and studies such as the following: piping material selections, liquid and gas line sizing, pipe volume, pressurizing time, purging velocity, blowdown time, orifice sizing, regulator and control valve sizing, relief valve sizing, pump NPSHA, compressed air requirements, fluid properties, building ventilation, pressure testing, and fuel gas heating.
Site Layouts and Piping Plans - Determines location, size, and arrangement of major mechanical equipment and piping. Assist with building layouts.
Process Hazard Analysis - Participates in HAZOP, HAZID, and PHA as required.
Requisitions, Specifications, Data Sheets, Technical Evaluations - Prepares material requisitions with all supporting documents for equipment such as:
Pressure Vessels and Tanks
Silencers
Pumps and Compressors
Flares
Gas Turbines and Engines
Regulators
Filters, Scrubbers, and Separators
Control Valves
Pipe, Fittings, Valves, and Valve Actuators
Gas Dehydration Equipment
Heat Exchangers and Heaters
Relief Valves
Meters and Provers
Gas Coolers
Construction Drawings - Responsible for IFC drawing packages, including:
PFDs and P&IDs
Equipment lists
Equipment Plot Plans
Valve lists
Piping Plans and Details
Piping line lists
#LI-RG1
Requirements
Qualifications
Education
Competencies
Work Environment/Physical Demands
Gulf is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
Location: Houston, TX
Gulf Companies has served the global energy industry since 1953 by supporting the complete project lifecycle and developing valued business partnerships to ensure the success of the project. Our worldwide experience and multi-disciplined capabilities encompass all aspects of the Engineering, Procurement, Construction Management, Field Inspection, GIS Integrity, Staffing Services and more.
Position Description
The Principal Mechanical Engineer is knowledgeable in multiple pipeline facilities and is qualified to handle large projects. Works independently. He/she has a wide latitude of technical authority with full work responsibilities as well as limited administrative responsibilities within each project. He/she is the primary producer of mechanical deliverables for the project scope, but on some projects may also need to assign, guide, and review the work of lower-level engineers and designers. Work is periodically reviewed by the Chief Mechanical Engineer for accomplishment of objectives.
Essential Functions
- Prepares, reviews, or approves mechanical engineering calculations.
- Prepares, reviews, or approves mechanical specifications and data sheets.
- Prepares, reviews, or approves material requisitions for equipment, materials, and subcontracts.
- Prepares, reviews, or approves technical bid evaluations for equipment and materials in cooperation with Procurement Department.
- Prepares, reviews, or approves lists (equipment, valve, piping, tie-in, and specialty items).
- Coordinates, reviews, or approves PFDs, P&IDs, piping plans, and site layouts.
- Coordinates with client personnel relative to mechanical and piping activities.
- Reviews and approves vendor drawings and documents.
- Observes factory acceptance testing of equipment when required.
- Prepares or reviews mechanical engineering deliverable status reports and work plans.
- Reviews the mechanical scope of work to be executed to ensure it matches deliverable logs, project specifications, and/or contract documents, when functioning as LME.
- Open to both short and extended term assignments to the site, client's office, or similar as may be requested by management.
ADDENDUM: ENGINEERING FACILITIES DEPARTMENT
MECHANICAL ENGINEERING GROUP FUNCTIONS
Mechanical Engineering for pipeline facilities is a highly specialized group whose function is to provide engineering-design services covering:
Mechanical Equipment and Piping System Design - Develops the optimum systems based upon desired performance, space constraints, reliability, maintainability, flexibility, and cost.
Calculations and Studies - Performs calculations and studies such as the following: piping material selections, liquid and gas line sizing, pipe volume, pressurizing time, purging velocity, blowdown time, orifice sizing, regulator and control valve sizing, relief valve sizing, pump NPSHA, compressed air requirements, fluid properties, building ventilation, pressure testing, and fuel gas heating.
Site Layouts and Piping Plans - Determines location, size, and arrangement of major mechanical equipment and piping. Assist with building layouts.
Process Hazard Analysis - Participates in HAZOP, HAZID, and PHA as required.
Requisitions, Specifications, Data Sheets, Technical Evaluations - Prepares material requisitions with all supporting documents for equipment such as:
Pressure Vessels and Tanks
Silencers
Pumps and Compressors
Flares
Gas Turbines and Engines
Regulators
Filters, Scrubbers, and Separators
Control Valves
Pipe, Fittings, Valves, and Valve Actuators
Gas Dehydration Equipment
Heat Exchangers and Heaters
Relief Valves
Meters and Provers
Gas Coolers
Construction Drawings - Responsible for IFC drawing packages, including:
PFDs and P&IDs
Equipment lists
Equipment Plot Plans
Valve lists
Piping Plans and Details
Piping line lists
#LI-RG1
Requirements
Qualifications
- Typically 10+ years of experience focusing on oil and gas pipeline facilities such as
- Compressor stations
- Pump stations
- Metering and regulating stations
- Storage terminals
- Loading/unloading facilities
- Knowledgeable in petroleum liquid and gas industry codes and standards published by US Department of Transportation, AGA, ANSI, API, ASME, ASTM, MSS, and NFPA, with the ability to apply the standards to oil and gas pipeline facility systems designs.
- Knowledge of computer systems in an engineering environment.
- Excellent written and verbal communication skills.
Education
- Bachelor of Science degree in Mechanical or Chemical Engineering
- Professional Engineering License required
Competencies
- Effective technical skills
- Meticulous attention to detail
- Analytical problem-solving skills
- Creativity and innovation
- Excellent verbal and written communication skills
Work Environment/Physical Demands
- Working conditions are normal for an office environment.
- Frequent sitting and operating a computer.
- Must be able to use body members to work, move or carry objects or office materials.
- Must be able to exert up to 10 pounds of force occasionally.
- Physical demands requirements are at levels of those for sedentary work.
Gulf is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
Skills
GIS
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