Sr. Process Engineer

Plum Gas Solutions•Odessa, TX

23d

About The Position

Plum Gas Solutions, LLC (“Plum”) is seeking a Process Engineer with hands-on experience in natural gas handling, conditioning, and sweetening systems, combined with strong CAD/SolidWorks drafting capability. This role is heavily execution-focused, requiring the ability to translate process design into detailed, field-ready drawings and layouts for installation, commissioning, and operations. The ideal candidate bridges process engineering and mechanical design, with the ability to support project delivery from concept through field implementation.

Requirements

Bachelor’s degree in Chemical Engineering or Mechanical Engineering
2-8 years in natural gas processing, CNG/LNG or midstream systems
Experience with natural gas decompression / decanters, compression systems, and/or oilfield / industrial site designs and layouts
SolidWorks (preferred) or AutoCAD – strong proficiency required
Aspen HYSYS (preferred) or similar process simulation tools
Experience developing: PFDs, P&IDs, and GA drawings Isometrics and fabrication drawings
Familiarity with: Pressure vessels, compressors, and gas processing equipment Applicable codes and standards (ASME B31.3, Section VIII, etc.)

Nice To Haves

Experience with packaged gas systems (CNG trailers, PRUs, VRUs, dehydration skids)
Exposure to compressor systems (e.g., Ariel, screw compressors, etc.)
Experience with 3D plant modeling or layout optimization
Field commissioning or startup experience
Professional Engineer (P.Eng / PE) designation or eligibility

Responsibilities

Design and optimize systems for: Natural gas compression and decompression, dehydration (TEG), and sweetening (amine systems) Gas conditioning (filtration, heating, separation, pressure regulation)
Perform simulations using Aspen HYSYS (preferred) or equivalent tools
Develop: Process Flow Diagrams (PFDs) Piping & Instrumentation Diagrams (P&IDs) Heat & material balances
Evaluate system performance, troubleshoot operational issues, and recommend improvements
Develop detailed 2D/3D CAD drawings using SolidWorks (preferred) or AutoCAD: Skid layouts and modular equipment packages General Arrangement (GA) drawings Piping isometrics and spool drawings Equipment layouts for field installation
Translate process requirements into constructible, field-ready designs
Ensure designs comply with: ASME, ANSI, CSA (as applicable) Company and client specifications
Support redlines, as-builts, and revision control
Collaborate with project managers, fabrication teams, and field crews
Provide site drawing packages for installation and commissioning
Participate in: Equipment FAT/SAT Field walkdowns and commissioning support
Resolve field issues by updating drawings and process documentation in real time
Support procurement with equipment specs and datasheets
Work closely with mechanical, electrical, and controls teams
Assist in development of: Equipment sizing (vessels, compressors, heaters, valves) Instrumentation and control philosophies
Contribute to continuous improvement of design standards and templates
Participate in HAZOP and safety reviews
Ensure compliance with engineering and design standards
Support permitting and regulatory documentation