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As of Jun 17, 2026, the average yearly pay for union nexus systems in the United States is $102,067.00, according to ZipRecruiter salary data. Most workers in this role earn between $77,000.00 and $125,000.00 per year, depending on experience, location, and employer.
What are the most commonly searched types of Nexus Systems jobs? The most popular types of Nexus Systems jobs are:
Union Nexus Systems jobs near you
Infographic showing various Union Nexus Systems job openings in the United States as of June 2026, with employment types broken down into 100% Full Time. Highlights an 94% Physical, 3% Hybrid, and 3% Remote job distribution, with an average salary of $102,067 per year, or $49.1 per hour.
Senior Process Engineer

Senior Process Engineer

Nexus Engineering Group

Oak Brook, IL • On-site

$110K - $160K/yr

Full-time

Posted 5 days ago

Job description

At Nexus Engineering Group, our Process Engineers turn client requirements into safe, buildable process designs - from first calculation to field startup. As a Senior Process Engineer, you'll own the basic process design of unit operations and the deliverables that drive projects forward, working shoulder-to-shoulder with project teams, vendors, and clients to get it right.
What You'll Do

  • Develop the documented design basis, process descriptions, BFDs, PFDs, P&IDs, and material selection diagrams that define each project. 

  • Build process simulation models in Aspen HYSYS and develop heat and material balances. 

  • Perform hydraulic calculations and produce equipment sizing data sheets for compressors, pumps, heat exchangers, columns, separators, reactors, and more. 

  • Design and size safety relief devices that protect personnel, equipment, and the process. 

  • Interface directly with clients and provide field support throughout project execution. 

  • Deliver work that meets quality standards and applicable codes - on schedule and within budgeted hours. 

What You'll Bring (Required)

  • Bachelor of Science in Chemical Engineering from an ABET-accredited program. 

  • 10+ years of experience in the oil & gas or chemical industries. 

  • Hands-on experience designing process equipment (vessels, pumps, exchangers, fired heaters, compressors). 

  • Process simulation experience with Aspen HYSYS and hydraulic analysis tools (e.g., AFT Fathom/Arrow, Visual Flare).

  • Experience with PSV sizing and safety relief device design, with a strong understanding of underlying process fundamentals and relief system behavior.  

  • Strong Microsoft Office skills. 

  • Excellent written and verbal communication, with the ability to work in teams and present a positive image to clients. 

  • Detail-oriented with a commitment to quality and timely delivery. 

Nice to Have

  • EIT certification. 

  • Professional Engineer (P.E.) license. 

Working Conditions

  • Periodic travel for client and project site visits as required. 

  • Work performed in a combination of office and active project-site environments; field assignments may involve walking, stooping, kneeling, and climbing stairs and ladders. 

  • PPE (hard hat, safety glasses, hi-vis vest, steel-toed boots) provided and required on site. 

$110,000 - $160,000 a year
Compensation for all candidates is determined based on experience, qualifications, skill set, certifications, work location, and market conditions. In addition to base pay, Nexus Engineering Group offers a comprehensive compensation package that may include eligibility for discretionary bonuses and participation in our Employee Stock Ownership Plan (ESOP), providing employees the opportunity to share in the long-term success of the company.

Competitive Benefits

Learn more about our competitive benefits in detail.

Why Nexus?

Nexus Engineering Group, a distinguished independent full-service engineering, procurement, and construction management (EPCm) firm, provides comprehensive support to clients from concept through startup. With over a decade of demonstrated engineering and design success, Nexus stands out as the firm of choice for those valuing integrity and expertise.

At Nexus, you will be part of a talented and passionate team dedicated to excellence and innovation. We foster a collaborative and engaging work environment, making it a place where you'll enjoy contributing to impactful projects. Joining Nexus means aligning with a firm renowned for its creativity, dedication, and relentless focus on achieving client goals.

Equal Opportunity Employer & Reasonable Accommodation

Nexus Engineering Group, Inc. is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

Nexus Engineering Group is committed to providing reasonable accommodations to qualifies individuals with disabilities throughout the application and hiring process. If you require and accommodation to participate in any part of the recruitment process please contact us at [email protected]. 

Sponsorship & Work Authorization

Nexus Engineering Group does not provide employment visa sponsorship of any kind, including CPT, OPT, or employment-based visas. Candidates must be currently authorized to work in the United States and must be able to maintain that authorization throughout employment without any action, filing, or sponsorship by the company. This requirement applies both at the time of hire and on a continuing basis for the duration of employment. 

ThirdParty Agency Notice

Nexus Engineering Group does not accept unsolicited resumes or candidate submissions from external recruiters or agencies. We only engage approved thirdparty partners under a written agreement initiated by our Talent Acquisition team for specific searches. Any resumes submitted without prior authorization or a current agreement will not be eligible for placement fees and will be considered the property of Nexus Engineering Group.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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