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Unisim Jobs (NOW HIRING)

Equinox Engineering

$98.80K - $128.40K/yr

Advanced proficiency in process engineering, with a strong focus on Aspen HYSYS; experience with ProMax, UniSim, VGMSim, or similar simulation tools is an asset * A proven ability to lead engineering ...

ZAP Engineering

I&C Engineer 2 (TX)

Houston, TX

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 ...

Linde

Advanced Process Control Engineer

Tonawanda, NY · On-site

$69.75K - $102.30K/yr

Familiarity with DCS or instrumentation systems such as Rockwell, Siemens, Honeywell, DeltaV, or Yokogawa, Exposure to simulation or modeling tools such as MATLAB, Aspen Hysys/Plus, UniSim, or ...

Honeywell

Lead Process Engineer

Houston, TX

$125K - $156K/yr

Proficiency of process simulation software, primarily Honeywell's UniSim software. WE VALUE * Advanced engineering degrees like Chemical Engineering. * 15+ years of experience in chemical engineering ...

New

Honeywell

Lead Process Engineer

Houston, TX

$125K - $156K/yr

Proficiency of process simulation software, primarily Honeywell's UniSim software. WE VALUE * Advanced engineering degrees like Chemical Engineering. * 15+ years of experience in chemical engineering ...

New

Praxair

Process Engineer

The Woodlands, TX

Proficient in process modeling using Unisim, AspenPlus or equivalent software package. * Prior experience with HyCO plants, Hydrogen and/or Carbon Monoxide, is preferred. * Ability to effectively ...

Honeywell

Advanced Chemical Process Engineer

Rosemont, IL · On-site

$106K - $133K/yr

... with UniSim Design, HYSYS and AspenPlus. WE VALUE * Advanced degree. Master's or PhD degree in chemical engineering or related technical discipline from an accredited institution. * Demonstrated ...

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How much do unisim jobs pay per hour?

As of May 29, 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 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 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 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 is the difference between Unisim vs Process Engineer?

AspectUnisimProcess Engineer
CredentialsTypically requires chemical engineering background, certifications in simulation softwareRequires chemical engineering degree, professional engineering license often preferred
Work EnvironmentPrimarily software-based, working in offices or remoteIndustrial plants, refineries, or manufacturing facilities
Industry UsageUsed for process simulation, design, and optimizationDesign, 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:
Unisim jobs near you
Infographic showing various Unisim job openings in the United States as of May 2026, with employment types broken down into 71% Full Time, 24% Part Time, and 5% Contract. Highlights an 96% Physical, 2% Hybrid, and 2% Remote job distribution, with an average salary of $29,053 per year, or $14 per hour.

Discipline Lead - Process Engineering (USA)

Equinox Engineering

On-site

$98.80K - $128.40K/yr

Full-time

Posted 17 days ago

Job description

Equinox Engineering USA

Equinox Engineering is an International EPCM leader known for innovative facility design and engineering across natural gas, oil, heavy oil, carbon capture, power generation, emerging energy, and brownfield Projects around the globe. We work with top energy producers in the USA, Canada, and internationally. We are committed to identifying and retaining the most talented employees to delivering highquality projects of all sizes and complexities that exceed client expectations.

We're looking for a Discipline Lead - Process Engineering who brings deep technical expertise, strong leadership, and a passion for solving complex engineering challenges. In this role, you'll shape the design and execution of projects from early-stage concepts through to detailed engineering and operational support. This is an opportunity to lead impactful work, mentor the next generation of engineers, and contribute to a diverse portfolio of projects that help drive energy innovation. 

With expanding operations in the United States and we are looking for someone based out of Houston, Texas or Denver, Colorado. 
Why Join Equinox? 
  • Meaningful work on a diverse portfolio of high-impact projects 
  • A people-focused culture that values technical excellence, teamwork, and continuous improvement. 
  • A flexible and supportive work environment designed for long-term career growth. 
  • Entrepreneurial culture that fosters creative and commercially minded leaders. 
What You'll Do

As the Discipline Lead - Process Engineering, you will play a key role in delivering safe, efficient, and reliable facility designs. In this role, you will: 

Technical Leadership 
  • Lead the engineering of engineering projects across all phases - Feasibility, Conceptual Design, DBM's, FEED, and Detailed Engineering. 
  • Develop and validate process models for simulations. 
  • Oversee and stamp major process engineering deliverables including Heat & Material Balances, PFD's, P&ID's, Shutdown Keys, Control Narratives, and Engineering reports. 
  • Review existing facilities performance, identify bottlenecks, and develop optimization and debottlenecking plants. 
  • Contribute to internal process engineering standards, best practices, and project execution methodologies. 
Technical Leadership & Collaboration 
  • Manage process engineering deliverable schedules, budgets.
  • Mentor intermediate and junior engineers, along with global workshare engineers.
  • Collaborate closely with PMPE, multidiscipline engineering teams, vendors, and clients to solve complex technical challenges.
Safety, Quality & Compliance
  • Lead P&ID and Process Hazard Assessments (PHA) reviews to ensure safe, operable, and regulatory-compliant designs. 
  • Ensure engineering outputs meet API, ASME, ISO, and other regulatory standards. 
Project Execution
  • Support commissioning, start-up, and operational optimization activities.
Technical Excellence
  • Ensuring U.S. regulatory compliance, including relevant state and federal process safety, mechanical integrity, and environmental requirements. 
  • Deliver technical expertise in a variety of process systems, which may include:
    • Natural gas processing (sweet and sour gas)
    • Oil processing, including heavy oil, stabilization, and treating operations
    • Power Generation
    • Brownfield MOC's
    • Refinery process systems
About You

You are an experienced engineer who thrives in a technical leadership role that enjoys working on multidisciplinary projects. You bring: 
  • Bachelor's degree in chemical engineering 
  • Professional Engineer (P.E.) license in Texas or Colorado, or willingness to achieve P.E. license in other states as required (supported by Equinox). 
  • Minimum 15+ years of experience in process engineering within oil & gas, refining, or petrochemical facilities. Experience working for an EPCM is preferred. 
  • Advanced proficiency in process engineering, with a strong focus on Aspen HYSYS; experience with ProMax, UniSim, VGMSim, or similar simulation tools is an asset
  • A proven ability to lead engineering teams and deliver complex, high-value projects. 
  • Strong working knowledge of applicable U.S. industry codes and standards. 
  • Exceptional interpersonal communication and commercial awareness, enabling strong client and internal stakeholder engagement. 
  • Ability to perform effectively in a fastpaced EPC/EPCM environment, managing multiple priorities concurrently. 
  • Willingness to travel as required (expected to be less than 20% of the time). 

Ready to Apply? 
If you're passionate about technical excellence, enjoy leading teams, and are looking for a place where you can grow your career while shaping innovative energy projects, we'd love to hear from you. 

Apply