Process models in Aspen HYSYS, Unisim Design, PipeFLO, or other simulation software. Line sizing, velocity and pressure drop calculations. Equipment sizing calculations and specifications for bulk ...
Process models in Aspen HYSYS, Unisim Design, PipeFLO, or other simulation software. Line sizing, velocity and pressure drop calculations. Equipment sizing calculations and specifications for bulk ...
Senior Process Technology Engineer
Georgetown, TX · On-site
$150K - $190K/yr
... UniSim, or equivalent), process flow diagrams (PFDs), P&IDs, and heat & material balance development. • Excellent analytical, problem-solving, and communication skills with the ability to influence ...
Senior Process Technology Engineer
Georgetown, TX · On-site
$150K - $190K/yr
... UniSim, or equivalent), process flow diagrams (PFDs), P&IDs, and heat & material balance development. • Excellent analytical, problem-solving, and communication skills with the ability to influence ...
... UniSim, HYSYS, Aspen Plus or similar). • Basic understanding of equipment design. • Ability to understand cross-impact between conceptual design, plant design and operations. • High-level ...
... UniSim, HYSYS, Aspen Plus or similar). • Basic understanding of equipment design. • Ability to understand cross-impact between conceptual design, plant design and operations. • High-level ...
... Unisim Design, PipeFLO, or other simulation software. • Line sizing, velocity and pressure drop calculations. • Equipment sizing calculations and specifications for bulk separation vessels, heat ...
... Unisim Design, PipeFLO, or other simulation software. • Line sizing, velocity and pressure drop calculations. • Equipment sizing calculations and specifications for bulk separation vessels, heat ...
I&C Engineer 4 (TX)
Houston, TX · On-site
$124K - $161K/yr
Experience with HYSYS, Unisim, ProMax, and/or VMG Symmetry and proficiency in Microsoft Office Suite, including Word, Outlook, and Excel. * Ability to self-direct and have a sense of responsibility ...
I&C Engineer 4 (TX)
Houston, TX · On-site
$124K - $161K/yr
Experience with HYSYS, Unisim, ProMax, and/or VMG Symmetry and proficiency in Microsoft Office Suite, including Word, Outlook, and Excel. * Ability to self-direct and have a sense of responsibility ...
... UniSim, HYSYS, Aspen Plus or similar). • Basic understanding of equipment design. • Ability to understand cross-impact between conceptual design, plant design and operations. • High-level ...
New
... UniSim, HYSYS, Aspen Plus or similar). • Basic understanding of equipment design. • Ability to understand cross-impact between conceptual design, plant design and operations. • High-level ...
New
Unisim information
See salary details
$10.34 - $10.95
3% of jobs
$10.95 - $11.56
3% of jobs
$11.56 - $12.17
11% of jobs
$12.40 is the 25th percentile. Wages below this are outliers.
$12.17 - $12.78
21% of jobs
The median wage is $13.34 / hr.
$12.78 - $13.40
13% of jobs
$13.40 - $14.01
11% of jobs
$14.01 - $14.62
4% of jobs
$15.05 is the 75th percentile. Wages above this are outliers.
$14.62 - $15.23
13% of jobs
$15.23 - $15.84
14% of jobs
$15.84 - $16.46
3% of jobs
$16.46 - $17.07
4% of jobs
$10
$13
$17
How much do unisim jobs pay per hour?
As of Jun 19, 2026, the average hourly pay for unisim in the United States is $13.97, according to ZipRecruiter salary data. Most workers in this role earn between $12.50 and $15.38 per hour, depending on experience, location, and employer.
What are Unisim jobs?
Unisim jobs typically refer to positions that involve working with UniSim, a process simulation software used primarily in the chemical, oil & gas, and process industries. Professionals in these roles use UniSim to model, simulate, and optimize process operations, helping organizations improve efficiency, safety, and profitability. Common UniSim job titles include process engineer, simulation specialist, and process modeling engineer. These jobs require a solid background in chemical engineering, process optimization, and familiarity with simulation tools like UniSim. Employers value candidates with strong analytical skills, attention to detail, and experience in industrial process environments.
What are some common challenges faced by professionals working with Unisim simulation software, and how can they be addressed?
Professionals using Unisim often encounter challenges related to modeling complex processes accurately and integrating simulation results into real-world operations. Navigating the software's advanced features can require a solid understanding of both process engineering and the tool itself, which may necessitate ongoing training. Collaboration with process engineers, IT teams, and operations staff is crucial to ensure simulations reflect actual plant conditions and to validate results. Regularly updating models and maintaining clear documentation can help address these challenges and improve overall project outcomes.
What are the key skills and qualifications needed to thrive as a Unisim Engineer, and why are they important?
To thrive as a Unisim Engineer, you need a solid background in chemical or process engineering, strong analytical skills, and typically a relevant engineering degree. Proficiency in AspenTech's UniSim process simulation software and familiarity with related industry tools are essential. Attention to detail, problem-solving ability, and effective communication are key soft skills for collaborating with multidisciplinary teams and optimizing process designs. These skills ensure accurate simulations, efficient plant operations, and successful project outcomes in process industries.
What is the difference between Unisim vs Process Engineer?
| Aspect | Unisim | Process Engineer |
|---|---|---|
| Credentials | Typically requires chemical engineering background, certifications in simulation software | Requires chemical engineering degree, professional engineering license often preferred |
| Work Environment | Primarily software-based, working in offices or remote | Industrial plants, refineries, or manufacturing facilities |
| Industry Usage | Used for process simulation, design, and optimization | Design, develop, and optimize industrial processes |
Unisim is a simulation software used by engineers to model and optimize chemical processes, while a Process Engineer applies engineering principles to develop and improve industrial processes. Both roles often require chemical engineering credentials, but Unisim focuses on software expertise, whereas Process Engineers work directly in industrial settings.
More about Unisim jobs
What job categories do people searching Unisim jobs look for? The top searched job categories for Unisim jobs are:
Tetra Tech rating
5.8
Based on 40 frontline employees who took The Breakroom Quiz
335th of 355 rated engineering
Job description
The Opportunity:
Tetra Tech is adding a Chemical Process Engineer to our OGA team based in Greater Denver, Colorado area.
Why Tetra Tech:
At Tetra Tech, we are Leading with Science to solve the world's most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our work has improved more than 625 million lives around the world.
Your Impact:
Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential - join us to advance your career while leaving a lasting legacy.
Position Summary:
Tetra Tech is seeking a Chemical Process Engineer with industrial experience in the mining, minerals and metals sector. This engineer will provide process engineering services to Tetra Tech and its clients and be responsible as the design technical lead on mineral processing, hydrometallurgy, equipment design and selection, technical studies, and process simulations.
Essential Job Functions:
The following duties are considered essential to the role. Reasonable accommodations may be made to enable individuals with disabilities to perform these essential functions:
Deliver process engineering services that meet Tetra Tech, its customers and applicable statutory and regulatory specification, on time and within budget
Perform process engineering services.
Identify and report changes to project scope.
Assist with the preparation of proposals, estimates, budgets and schedules.
Provide assistance during procurement, construction and commissioning activities.
Contribute to appropriate studies, analyses and recommend actions.
Assist with the preparation of detailed designs and drawings, specifications, data, calculations and reports.
Develop, check and be the technical owner and approver of process engineering deliverables including, but not limited to, the following:
Process Flow Diagrams (PFDs), Heat and Material Balances (HMBs), Piping & Instrumentation Diagrams (P&IDs).
Process models in Aspen HYSYS, Unisim Design, PipeFLO, or other simulation software.
Line sizing, velocity and pressure drop calculations.
Equipment sizing calculations and specifications for bulk separation vessels, heat exchangers, pumps, compressors, control valves and PSV's.
Process engineering studies, process basis of design documents and technical reports
Participate in PHA for assigned project.
Participate in and provide feedback during project design reviews.
Review and comment inter-disciplinary deliverables such as piping layouts, isometrics, 3D models, mechanical equipment specifications, etc.
Keep up-to-date with the latest developments and technical innovations in process engineering.
Communicate effectively with the process engineering team and project stakeholders, including the Customer.
Identify issues and problems, develop appropriate solutions, and ask for assistance when required.
Evaluation of existing systems for the purpose of providing upgrades or efficiency increases.
Review internal and external design documents and provide feedback on concept and code compliance, adherence to contract requirements, constructability, cost optimization and other factors for a complete and accurate design package.
Coordinate with internal and external stakeholders.
Required Qualifications:
Bachelor's degree in chemical engineering from an ABET accredited institution.
Minimum 5 years of process/chemical engineering experience in mining, minerals and metals sector.
Must be an effective communicator and leader with success in a challenging and fast-paced environment.
Must have the ability to utilize numerous process modelling software packages to properly design, troubleshoot, and optimize a variety of operations.
Must be able to manage multiple project efforts, prioritizing task and resources.
Competent use of Microsoft Office products such as: Microsoft Windows - Word, Excel, PowerPoint, etc
A Pre-employment drug screening in compliance with state regulations is required.
Must possess a valid driver's license with a clean driving record without restrictions.
Physical Requirements:
Candidate must be able to sit at a computer workstation for extended periods of time.
Work in the field at customer sites will be required frequently and will consist of a typical heavy industrial setting
Must be able to climb stairs occasionally in harsh weather conditions, be able to lift items <25 lbs, crouching, stooping, etc. may be required to observe conditions or inspect equipment.
Work Environment / Environmental Factors:
This position will be 100% remote with occasional short duration travel (<15%). If the candidate desires an office setting accommodations can be made.
Additional Information
Full-time Salaried Position
Monday - Friday with occasional local travel
Target Salary Range: $125k to $165k.
Life at Tetra Tech:
The perks of working at Tetra Tech include:
Comprehensive and market-competitive benefits.
Merit-based financial rewards.
Flexibility and company-wide commitment to work/life balance.
Collaborative team atmosphere that values the contributions of all employees.
Learning and development opportunities for ongoing professional growth.
About Tetra Tech:
Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.
Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.
We invite applications from all interested parties.
Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:
LinkedIn: @TetraTechCareers
X (Twitter): @TetraTechJobs
Additional Information
- Organization: 212 OGA
What Tetra Tech employees say
Pay
Benefits
Hours and flexibility
Workplace
Get the full story on Breakroom