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Process Simulation Jobs in Texas (NOW HIRING)

Mariana Minerals

Process Modeling Engineer

Houston, TX · On-site

$100K - $160K/yr

Develop and maintain process simulation databases, ensuring consistency and traceability between modeling assumptions, test data, and engineering deliverables. * Calibrate and reconcile models using ...

SolarEdge

Process Engineer

Austin, TX · On-site

Conduct process simulations and modeling to analyze performance and identify potential bottlenecks. * Collaborate with contract manufacturers to implement process changes and improvements. * Design ...

Solaredge

Process Engineer

Austin, TX · On-site

Conduct process simulations and modeling to analyze performance and identify potential bottlenecks. * Collaborate with contract manufacturers to implement process changes and improvements. * Design ...

Envirogen

Proficiency in process simulation software (e.g., Aspen Plus, HYSYS) and CAD software (e.g., AutoCAD, SolidWorks). * Strong understanding of water chemistry, fluid dynamics, and thermodynamics.

Envirogen

Process Engineer

Kingwood, TX · On-site +1

Proficiency in process simulation software (e.g., Aspen Plus, HYSYS) and CAD software (e.g., AutoCAD, SolidWorks). * Strong understanding of water chemistry, fluid dynamics, and thermodynamics.

Envirogen

Process Engineer

Kingwood, TX · On-site

Proficiency in process simulation software (e.g., Aspen Plus, HYSYS) and CAD software (e.g., AutoCAD, SolidWorks). * Strong understanding of water chemistry, fluid dynamics, and thermodynamics.

Envirogen

Process Engineer

Kingwood, TX · On-site

Proficiency in process simulation software (e.g., Aspen Plus, HYSYS) and CAD software (e.g., AutoCAD, SolidWorks). * Strong understanding of water chemistry, fluid dynamics, and thermodynamics.

Envirogen

Proficiency in process simulation software (e.g., Aspen Plus, HYSYS) and CAD software (e.g., AutoCAD, SolidWorks). * Strong understanding of water chemistry, fluid dynamics, and thermodynamics.

Envirogen

Senior Process Engineer

Kingwood, TX · On-site +1

$90.70K - $117.30K/yr

Proficiency in process simulation software (e.g., Aspen Plus, HYSYS) and CAD software (e.g., AutoCAD, SolidWorks). * Strong understanding of water chemistry, fluid dynamics, and thermodynamics.

Envirogen

$90.30K - $116.70K/yr

Proficiency in process simulation software (e.g., Aspen Plus, HYSYS) and CAD software (e.g., AutoCAD, SolidWorks). * Strong understanding of water chemistry, fluid dynamics, and thermodynamics.

Kiewit

Lead Process Engineer - LNG

Houston, TX · On-site

$98.80K - $128.40K/yr

... simulations, data sheets and engineering calculations including hydraulics, process simulations and performance flow curves. • Provide resolution of technical issues associated with design ...

DXP

Process Engineer

Katy, TX

Responsibilities · Develop and review of Process Flow Diagrams (PFDs), Piping & Instrumentation Diagrams (P&IDs) and Heat & Material Balances · Perform process simulations using tools such as Aspen ...

Kiewit Corporation

Lead Process Engineer - LNG

Houston, TX · Hybrid

$98.80K - $128.40K/yr

Generate design deliverables such as PFD's, P&ID's, process simulations, data sheets and engineering calculations including hydraulics, process simulations and performance flow curves. Provide ...

DXP

Process Engineer

Katy, TX

Responsibilities · Develop and review of Process Flow Diagrams (PFDs), Piping & Instrumentation Diagrams (P&IDs) and Heat & Material Balances · Perform process simulations using tools such as Aspen ...

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See Texas salary details

$36.3K

$115K

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How much do process simulation jobs pay per year?

As of May 31, 2026, the average yearly pay for process simulation in Texas is $114,966.00, according to ZipRecruiter salary data. Most workers in this role earn between $85,700.00 and $136,500.00 per year, depending on experience, location, and employer.

What is a Process Simulation job?

A Process Simulation job involves using software tools to model, analyze, and optimize industrial processes in industries like chemical, manufacturing, and energy. Engineers in this role create virtual models to test different scenarios, improve efficiency, reduce costs, and ensure safety. They work with simulation software such as Aspen Plus, HYSYS, or MATLAB to predict system performance before physical implementation. This helps companies make data-driven decisions and improve overall process reliability.

What are the key skills and qualifications needed to thrive in the Process Simulation position, and why are they important?

To thrive in Process Simulation, a strong background in chemical engineering, process modeling, and analytical thinking is essential, often supported by a degree in engineering or a related field. Expertise with simulation software such as Aspen HYSYS, CHEMCAD, or MATLAB, and familiarity with process control systems, are highly valued, along with relevant certifications. Effective communication, problem-solving, and collaboration skills help professionals convey complex concepts and work efficiently with multidisciplinary teams. These qualifications are crucial for creating accurate process models, optimizing operations, and supporting evidence-based decision-making in industrial environments.

What does a typical day look like for someone working in Process Simulation?

A typical day in Process Simulation often involves developing, testing, and refining process models to optimize manufacturing or chemical processes. You’ll collaborate with engineers, plant operators, and project managers to gather data, validate simulations, and ensure alignment with production goals. Regular responsibilities may include running simulations on specialized software, analyzing results, and presenting findings and recommendations to stakeholders. The role tends to balance independent analytical tasks with team-oriented problem-solving, providing both technical challenges and opportunities for cross-functional communication.

What jobs make $3,000 a month without a degree?

In process simulation or related fields, roles such as manufacturing or industrial technicians, quality control inspectors, or entry-level automation operators can sometimes earn around $3,000 monthly without a degree, especially with relevant technical skills or certifications. Many of these jobs require on-the-job training, familiarity with simulation software, or technical aptitude rather than formal higher education.
More about Process Simulation jobs
What are the most commonly searched types of Process Simulation jobs in Texas? The most popular types of Process Simulation jobs in Texas are:
What are popular job titles related to Process Simulation jobs in Texas? For Process Simulation jobs in Texas, the most frequently searched job titles are:
What job categories do people searching Process Simulation jobs in Texas look for? The top searched job categories for Process Simulation jobs in Texas are:
Process Simulation jobs near you
Infographic showing various Process Simulation job openings in Texas as of May 2026, with employment types broken down into 94% Full Time, and 6% Contract. Highlights an 100% In-person job distribution, with an average salary of $114,966 per year, or $55.3 per hour.

Process Modeling Engineer

Mariana Minerals

Houston, TX • On-site

$100K - $160K/yr

Full-time

Posted 3 days ago

Job description

About Mariana Minerals
Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies.
We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply.
The Role
Mariana Minerals is seeking a highly motivated Process Modeling Engineer to support the development of next-generation refining processes for critical minerals - key to enabling the world's energy transition.
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 closely with R&D, pilot operations, and project execution teams to translate lab and pilot data into robust, scalable process models that drive the design of first-of-a-kind mineral refining facilities.
What You'll Do
  • Develop steady-state and dynamic process models to establish heat and material balances for integrated mineral refinery systems using ASPEN, SysCAD, OLI, or METSIM.
  • Automate equipment and process sizing (reactors, heat exchangers, filters, crystallizers, evaporators, and separators) based on model outputs, linking models to datasheets and other engineering tools
  • Develop and maintain process simulation databases, ensuring consistency and traceability between modeling assumptions, test data, and engineering deliverables.
  • Calibrate and reconcile models using pilot or plant operating data to ensure model fidelity and predictive accuracy.
  • Conduct process optimization studies - evaluating energy/heat recovery, recycle strategies, and material efficiency improvements.
  • Develop dynamic process models to validate PLC and DCS programming and evaluate/optimize buffer sizing throughout the design.
  • Link process models to CAPEX and OPEX estimation tools, automating technoeconomic model development
  • Document modeling methodologies and results, providing clear technical communication for design reviews, techno-economic assessments, and regulatory submissions.
What You'll Bring
  • Proficiency in one or more of the following process simulation tools:
    • ASPEN Plus / HYSYS
    • SysCAD
    • OLI Studio / OLI Flowsheet
    • METSIM
  • Deep understanding of mass transfer, heat transfer, thermodynamics, fluid flow, and reaction engineering.
  • Experience developing material and energy balances for multi-step, integrated process systems.
  • Strong grasp of chemical equilibria and phase behavior in aqueous and non-aqueous systems.
  • Familiarity with data reconciliation, parameter fitting, and model validation using experimental or operational data.
  • Competency with Python or MATLAB for model automation, data processing, and custom calculations is a strong plus.
  • Experience integrating process modeling outputs into EPC deliverables (PFDs, P&IDs, equipment datasheets, control narratives, etc.)

Why Join Us?
At Mariana Minerals, you'll be part of a mission-driven team reshaping the way critical minerals are sourced and supplied globally. You'll have the autonomy to make big decisions, the tools to innovate, and a culture that values ownership, smart automation, and collaboration.
Our culture is built on three principles:
Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions.
Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale.
Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.
Join us as we build the future of responsible mineral sourcing and supply.
Mariana is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status.

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