Senior Process Engineer - Primoris Pipeline

Primoris Services Corporation; Houston (TX); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Best-in-class medical, dental, vision,

401(k) with company match

Pet coverage for your furry friends

Legal assistance coverage

Award-winning safety programs

Job summary

Primoris Pipeline is seeking a Senior Process Engineer in Houston, TX. The role focuses on onshore oil and gas transport projects in upstream, midstream, and petrochemical markets, with emphasis on facilities and pipelines, pump stations, and tank farms.

The candidate will develop design bases, perform heat and material balances, conduct flow simulations, and prepare equipment specifications. In-office collaboration and client interfacing are essential for success in this role.

Qualifications

• Bachelor's Degree in Chemical Engineering preferred; related degrees with applicable experience accepted.
• Experience collaborating with designers and strong in-office communication is required.
• 5+ years of experience with midstream facilities or pipelines in the US.

Responsibilities

• Develop the Process Basis of Design.
• Prepare Heat and Material Balance for the project.
• Process Flow and P&ID Development.
• Prepare the Line List.
• PSV/relief calculations.
• Hydraulic Simulation and Surge Analysis for piping systems.
• Interface with Design team for PFD/P&ID development and reviews.
• Equipment specifications and datasheets for procurement.
• Support project management with scheduling and budgeting.
• QA/QC of Process deliverables.

Skills

Chemical engineering

Communication

Client interfacing

Midstream experience

Education

Bachelor's degree in Chemical Engineering

Tools

ASME B31.3

ASME B31.4

ASME B31.8

CFR/DOT

API standards

Job description

Senior Process Engineer - Primoris Pipeline

Job Category: Engineering

Requisition Number: SENIO021850

• Posted : May 26, 2026
• Full-Time

Locations

Showing 1 location

Houston, TX 77041, USA

Description

Primoris Pipeline is currently seeking a Process Engineer (Mid-level, Intermediate, or Senior-level) for our office in Houston, Texas, which focuses on onshore oil & gas transportation projects in the upstream, midstream, and petrochemical markets.

Our core focus is Facilities and Pipelines, including Pump Stations, Compressor Stations, CO2 Capture Facilities, Tank Farms, Terminals (Loading/Unloading Truck, Rail, Marine), Pipeline Facilities (Traps, valve sites, meter sites, tie-ins, etc.), Upstream production pads, gathering pipelines and tank batteries.

Job Responsibilities:

• Develop the Process Basis of Design
• Prepare Heat and Material Balance for the project
• Process Flow and P&ID Development
• Prepare the Line List
• PSV/relief calculations
• Hydraulic Simulation and Surge Analysis- Flow assurance calculations for steady state and transient piping systems.
• Operational Philosophy
• Prepare mark ups of PFDs and P&IDs.
• Ensure project is in compliance with applicable codes and client standards.
• Interface with Design team- PFD/P&ID development, 30/60/90 Model Reviews, IFR and IFC development, cross-discipline checking
• Equipment specification and datasheets for procurement
• Rotating and Static Equipment- Sizing Calculations for specialty items. For Packaged equipment: prepare RFQ packages on Mechanical equipment including Datasheets and specifications, Technical Bid Evaluations, Vendor Drawing reviews, interface with equipment vendors, provide clarifications for vendors, review/approve vendor drawings
• Interface with the Project Management team and provide progressing, scheduling and budgeting support
• Review and QA/QC all Process deliverables
• Construction commissioning support may be required

Required Qualifications:

• Bachelor's Degree in Chemical Engineering preferred. Petroleum or other degrees accepted with applicable experience.
• Experience working closely with designers. In-office participation is required. Need to have excellent communication skills.
• Client interfacing role may be required if assigned as a Lead. Professionalism and ability to communicate effectively is required.
• 5+ years of experience with midstream facilities or pipelines in the US
• Travel not mandatory, but this role may require occasional site visits or client meetings
• Experience with rotating equipment, instrumentation and controls is recommended
• Working knowledge of ASME B31.3, B31.4 and B31.8, CFR/DOT regulations, and other applicable API standards and recommended practices for design.

Desired Qualifications:

• Gas compression equipment experience is desired, with knowledge of reciprocating and Solar turbine machines is preferred.
• Experience with pipeline simulation, P&IDs, and midstream equipment preferred

Company Overview

Primoris was formed in 2004 as the parent company and is traded on the NYSE under the symbol PRIM. We provide a wide range of construction, maintenance, and engineering services for power generation, oil and gas, chemical, pipeline, utilities and distribution, and civil infrastructure clients. Primoris is ranked in the top 1% of the prestigious Top 600 Specialty Contractors List by Engineering News-Record (ENR), having built projects throughout the U.S. and Canada. For additional information, please visitwww.prim.com.

Primoris Engineering provides complete professional and technical engineering services, including feasibility studies, process design packages, front-end engineering designs, economic analysis, detailed engineering, survey, and construction and commissioning services for projects in the Refining, Renewables, Chemicals, and Mid-Stream markets.

Primoris is proud to offer the following to full time employees:

• Best-in-class medical, dental, vision, and LTD/STD coverage
• 401(k) with company match, vested on day one
• Pet coverage for your furry friends
• Legal assistance coverage
• Award-winning safety programs

Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.