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Hysys Jobs (NOW HIRING)

Plum Gas Solutions

Application Engineer

Odessa, TX · On-site

Perform simulations using Aspen HYSYS (preferred) or equivalent tools * Develop: * Process Flow Diagrams (PFDs) * Piping amp; Instrumentation Diagrams (P amp;IDs) * Heat amp; material balances

Audubon Companies

Sr. Process Engineer

Houston, TX · On-site

$99K - $128K/yr

... HYSYS, Aspen Plus) • Support HAZOP, LOPA, and other process safety reviews; close out action items • Troubleshoot plant performance issues and identify debottlenecking and optimization ...

Plum Gas Solutions

Application Engineer

Odessa, TX · On-site

Perform simulations using Aspen HYSYS (preferred) or equivalent tools * Develop: * Process Flow Diagrams (PFDs) * Piping & Instrumentation Diagrams (P&IDs) * Heat & material balances * Evaluate ...

UDR Consulting Inc

Senior Process Engineer

Richland, WA · On-site

$108K - $140K/yr

Develop process models with commercially available programs (Aspen, Hysys, ChemCAD) or by building custom models in Excel. * Support business development efforts by developing engineering estimates ...

UDR Consulting Inc

Senior Process Engineer

Richland, WA · On-site

$108K - $140K/yr

Develop process models with commercially available programs (Aspen, Hysys, ChemCAD) or by building custom models in Excel. * Support business development efforts by developing engineering estimates ...

Polaris Engineering

Senior Process Engineer

Lake Charles, LA · On-site

$95K - $123K/yr

... HYSYS, UNISYS preferred)P. E. license preferredAvailable for short-term travel IV. REPORTING REQUIREMENTS:Reports to the Process Department Engineer Manager V. PHYSICAL REQUIREMENTS:Prolonged periods ...

WorleyParsons

Process Engineer Level II

Monrovia, CA · On-site

$110K - $162K/yr

Advanced knowledge of process simulation packages such as HYSYS and/or PRO/II, iPRSM, PSPPM, Flare Network Analyzer and Computational Fluid Dynamics. * 5+ years of relevant process engineering ...

Venturegloballng

Senior Engineer, Production

Arlington, VA · Hybrid

$158K - $186K/yr

Creating/validating steady-state and dynamic process models of the LNG process units using industry standard tools (e.g., Aspen HYSYS) * Using appropriate methodologies such data driven, physics ...

Mariana Minerals

In this role, you will be responsible for developing, validating, and optimizing heat and material balance models using tools such as ASPEN Plus/HYSYS, SysCAD, OLI Studio, or METSIM. You will work ...

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How much do hysys jobs pay per hour?

As of Sep 14, 2026, the average hourly pay for hysys in the United States is $25.47, according to ZipRecruiter salary data. Most workers in this role earn between $17.55 and $29.57 per hour, depending on experience, location, and employer.

What is a HYSYS?

A Hysys job typically involves using Aspen Hysys, a process simulation software, to model and optimize chemical processes in industries such as oil and gas, refining, and petrochemicals. Professionals in this role analyze process performance, design equipment, and troubleshoot operational issues. They may work as process engineers, simulation specialists, or consultants to improve efficiency and safety in industrial operations. Strong knowledge of thermodynamics, process design, and simulation techniques is essential for success in this field.

What does a HYSYS do?

Professionals in a HYSYS-focused position generally spend their days developing and optimizing process simulations using Aspen HYSYS software, analyzing plant data, and working closely with process engineers to troubleshoot operational challenges. They may also participate in project meetings, prepare technical reports, and present simulation results to both engineering and management teams. Collaboration is frequent, as HYSYS specialists often consult cross-functional groups, including operations, safety, and instrumentation teams, to ensure simulation outputs align with real-world requirements. Continuous learning is important, as new software updates and evolving industry standards require ongoing professional development.

What are the key skills and qualifications needed to thrive in the HYSYS position?

To thrive in a HYSYS role, you need a solid background in chemical engineering principles and process modeling, typically supported by a degree in chemical engineering or a related field. Proficiency with Aspen HYSYS process simulation software is essential, and additional certifications in process simulation may be advantageous. Strong analytical thinking, attention to detail, and effective communication skills set top performers apart. These skills and qualifications are crucial for accurately modeling chemical processes, troubleshooting design issues, and collaborating with multidisciplinary teams to ensure optimal plant performance.

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Hysys jobs near you
Infographic showing various Hysys job openings in the United States as of September 2026, with employment types broken down into 3% Internship, 93% Full Time, 1% Part Time, and 3% Contract. Highlights an 84% Physical, 9% Hybrid, and 7% Remote job distribution, with an average salary of $52,986 per year, or $25.5 per hour.

Application Engineer

Odessa, TX • On-site

Plum Gas Solutions
See more jobs at Plum Gas Solutionsexternal

Full-time

Re-posted 3 days ago

Key responsibilities

  • Design and optimize natural gas handling, conditioning, and sweetening systems, including piping, compression, dehydration, and gas conditioning components.

  • Develop detailed CAD drawings such as skid layouts, general arrangements, piping isometrics, and equipment layouts for field installation and commissioning.

  • Collaborate with project teams and field crews to support installation, commissioning, and resolve field issues by updating drawings and process documentation.

Job description

Process Engineer
Position Overview
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.
Key Responsibilities
Process Design amp; Engineering
  • Design and optimize systems for:
    • B31-3 Piping Systems(Manifolds, etc.)
    • 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 amp; Instrumentation Diagrams (P amp;IDs)
    • Heat amp; material balances
  • Evaluate system performance, troubleshoot operational issues, and recommend improvements
Design amp; Drafting
  • 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
Project Execution amp; Field Support
  • 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
Cross-functional Support
  • 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
Safety, Compliance amp; Standards
  • Participate in HAZOP and safety reviews
  • Ensure compliance with engineering and design standards
  • Support permitting and regulatory documentation
Qualifications
Education
  • Bachelor’s degree in Chemical Engineering or Mechanical Engineering
Experience
  • 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
Technical Skills
  • SolidWorks (preferred) or AutoCAD – strong proficiency required
  • Aspen HYSYS (preferred) or similar process simulation tools
  • Experience developing:
    • PFDs, P amp;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.)
Preferred Skills
  • 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
Soft Skills
  • Entrepreneurial mindset and ability to work in a fast-paced environment
  • Strong communication across technical and commercial teams
  • Hands-on, field-oriented approach
  • High attention to detail with execution focus
Compensation
Competitive base salary
Comprehensive health benefits plans
Performance-based bonus

Why Join Plum?
Exposure to large energy infrastructure projects
Cross-functional role spanning engineering, finance, and execution
Opportunity to shape a scalable virtual pipeline platform
High-impact, entrepreneurial environment

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