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Process Modeling Engineer
Zero Carbon SystemsPosted 10/19/2026full-timeRemote • Colorado • United StatesSeniorLead💰 $145,000 - $165,000 per yearWebsite
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in techno-economic analysis (TEA) and process optimization within chemical engineering, leveraging advanced modeling tools such as Aspen Custom Modeler (ACM) and Excel. Proven ability to communicate complex findings effectively to diverse stakeholders while collaborating across multidisciplinary teams.
Highest-signal resume keywords
Techno-Economic Analysis (TEA)Aspen Custom Modeler (ACM)Process Engineering ExperienceExcel and VBA ProficiencyAnalytical Thinking and Problem Solving
Tech Stack
Tools & technologiesAbout the role
Key responsibilities & impact- Bridge theoretical modeling, process design, and plant operations
- Develop rigorous techno-economic analysis (TEA) to finalize operating points for demo and production facilities
- Optimize processes across weather, location, and plant configuration scenarios
- Use and develop internal process modeling tools
- Update and refine process models based on design improvements, operational data, and material advances
- Run and optimize the Aspen Custom Modeler (ACM) model
- Translate Aspen process models into Excel outputs for equipment lists, sizing, stream lists, pipe sizing, power demand, and stream tables
- Automate model outputs using VBA or similar tools and run self-consistency checks
- Translate model outputs into Aspen Capital Cost Estimator (ACCE) and related cost estimation tools
- Compare internal capital estimates against external design firm estimates
- Use ACCE estimates and vendor quotes to develop cost, sizing, and scaling inputs for the system TEA model
- Develop shortcut models for rapid process review and analysis
- Keep PFDs and P&IDs aligned with the latest process model
- Communicate model, process, and equipment updates to the external engineering design firm
- Integrate design and equipment updates into the demo facility design and build
- Identify opportunities to reduce energy, CapEx, and OpEx through process optimization and TEA
- Collaborate with materials, site operations, mechanical engineering, engineering, R&D, and project management teams
- Support Life Cycle Analysis and environmental impact assessments
- Present model findings, cost estimates, and process updates to senior leadership, investors, and stakeholders
- Report to the Process Modeling Lead
Requirements
What you’ll need- Degree in chemical engineering or a related field
- 7+ years of experience post undergraduate degree (BS + 7 years, MS + 5 years, or PhD + 2 years)
- Prior TEA experience for highly integrated industrial processes
- Prior hands-on process engineering experience in an industrial setting or chemical manufacturing plant
- Knowledge of methods for representing and modeling heat and mass transfer in porous materials
- Proficiency with Excel, VBA, Python, JMP, or similar tools
- Strong analytical thinking, problem solving, and troubleshooting skills
- Excellent communication, reporting, and presentation skills
- Preferred: process operations and/or design exposure, with demonstrated experience reading and generating PFDs, P&IDs, equipment lists, and instrument lists
- Preferred: experience with detailed design and equipment selection or procurement
- Preferred: experience working with cross-functional teams, scoping new R&D or engineering projects, and working at a startup moving from R&D to testing and scale-up
- Preferred: experience communicating complex numerical results to a non-technical audience
- Must verify identity and eligibility to work in the United States upon hire
Benefits
Comp & perks- Equal Opportunity Employer
- Remote work option
- Full-time position
- Work authorization verification and employment eligibility verification upon hire
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Techno-Economic Analysis (TEA)Process EngineeringHeat and Mass Transfer ModelingAspen Custom Modeler (ACM)Excel ProficiencyVBA ProgrammingPython ProgrammingJMP SoftwareProcess Flow Diagrams (PFDs)Piping and Instrumentation Diagrams (P&IDs)
Soft Skills
Analytical ThinkingProblem SolvingCommunication SkillsReporting SkillsPresentation Skills
Tools & Technologies
Aspen Capital Cost Estimator (ACCE)VBAExcelPythonJMP
Industry Keywords
Chemical EngineeringIndustrial ProcessesProcess OptimizationEnergy ReductionLife Cycle Analysis