[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Nucor · Bethlehem, PA # Sr. Process Systems Engineer Bethlehem, PA, US Senior individual contributor $5,000 per year Operations Listed on Nucor’s official careers site. Listed as of November 1, 2026. Check that it is still open and apply there. [Apply on Nucor’s careers site →](https://jobs.nucor.com/job/Bethlehem-Sr_-Process-Systems-Engineer-PA-18015/1444473700/) [OpenNash Jobs](https://jobs.opennash.com/) / [Nucor](https://jobs.opennash.com/companies/nucor/) / Sr. Process Systems Engineer ## Job description ### Job Details Division Universal Industrial Gases, LLC Location: Bethlehem, PA, United States Other Available Locations: N/A Welcome to Nucor, where our unique culture sets us apart. Joining Nucor means becoming part of North America's largest steel and steel products manufacturer, offering unmatched career opportunities and stability. We are known for our innovative sustainability practices and are the continent's largest recycler. Our vibrant culture, built on personal connections and teamwork, empowers every team member with the freedom to innovate and contribute to our collective success. Experience a workplace where safety, efficiency, and meaningful personal connections define every day, enriching both our teammates and the communities we serve. Nucor supports its teammates with top-tier benefits like Medical, Dental, Vision, and Disability Insurance, 401K and Roth accounts, Profit sharing, Pay-for-performance bonuses, Paid parental leave, Tuition reimbursement, Stock program, Scholarships and more. ### Benefits Yearly UIG specific KPI bonus in addition to Nucor profit sharing Paid Vacation Profit Sharing – 1x year payout that averages around 17% of your annual earnings Tuition Reimbursement Scholarship Program – Every child of a Nucor teammate is eligible for $5,000 per year Parental Leave Low-cost medical, dental, vision after 30 days Company-paid life and disability insurance Company matching 401(k) plan Employee stock purchase plan [https://nucor.com/careers/#life_at_nucor](https://nucor.com/careers/#life_at_nucor) Safety is the most important part of all jobs within Nucor; therefore, candidates must be able to demonstrate the ability to initiate, lead, and uphold safety policies, practices, procedures, and housekeeping standards at all times. ### What You’ll Do We are seeking a Senior Process Systems Engineer to serve as the technical owner for Process & Instrumentation Diagrams (P&IDs) for cryogenic air separation projects. The successful candidate will have significant hands-on experience developing, owning, and maintaining P&IDs from initial concept through detailed engineering, construction, commissioning, and final as-built documentation. Direct experience with cryogenic Air Separation Units (ASUs) producing oxygen, nitrogen, and argon is strongly preferred. This engineer will be accountable for ensuring P&IDs accurately translate process design intent into safe, operable, maintainable, and constructible process systems and will lead P&ID coordination across process, mechanical, piping, instrumentation and controls, safety, suppliers, construction, commissioning, and operations. ### Primary Responsibilities Serve as the technical owner and primary engineering authority for project P&IDs, maintaining technical integrity and consistency throughout the project lifecycle. Personally develop and direct P&ID development from conceptual design through detailed design, IFC/construction, commissioning, redlines, and final as-built status. Translate PFDs, heat and material balances, equipment requirements, operating philosophies, and process design criteria into complete P&IDs. Define piping, equipment, isolation, bypass, vent, drain, relief, instrumentation, control, alarm, trip, shutdown, and safeguarding requirements. Lead formal multidisciplinary P&ID reviews and resolve comments and technical interfaces. Incorporate vendor information, HAZOP/PHA actions, design changes, field modifications, and commissioning discoveries into controlled P&ID revisions. Perform field walkdowns and reconcile engineering drawings against installed systems to support accurate as-built documentation. Establish and maintain P&ID standards, symbology, design conventions, checklists, and quality requirements. Mentor engineers and designers in P&ID development and review. Participate in or lead HAZOP/PHA and other process safety reviews. Support equipment specification, technical bid evaluation, vendor reviews, construction, commissioning, startup, performance testing, and troubleshooting. ### What You’ll Need Bachelor’s degree in Chemical Engineering or closely related engineering discipline. 8+ years of process/process systems engineering experience. Minimum 5 years of substantial hands-on P&ID development experience, beyond review or approval responsibilities. Demonstrated experience taking P&IDs through at least two major project phases, such as conceptual design, detailed engineering, construction/IFC, commissioning, or as-built. Experience serving as P&ID owner, lead developer, or responsible process engineer on at least one significant industrial process project. Demonstrated ability to develop P&IDs for complete process systems, including equipment, piping, valves, instrumentation, controls, safeguards, relief systems, vents, drains, and utility interfaces. Experience leading multidisciplinary P&ID reviews and resolving comments across engineering disciplines. Strong knowledge of fluid flow, heat transfer, process equipment, process controls, hydraulics, and process safety. ### Nice to Have 5+ years of direct experience developing P&IDs for cryogenic ASUs or industrial gas facilities. Demonstrated P&ID ownership for at least one ASU project from detailed design through commissioning or as-built status. Experience with oxygen, nitrogen, and argon systems, cryogenic distillation, brazed aluminum heat exchangers, molecular sieve purification, compressors, expanders, and cryogenic pumps. Familiarity with applicable ASME, API, CGA, NFPA, OSHA/PSM, IEC, and ISA requirements and practices. ### Our Commitment to a Drug Free Workplace Employment is contingent upon successfully passing a pre-employment drug screening, which includes both urine and hair follicle testing. ### Why UIG Universal Industrial Gases, Inc. (UIG) is a wholly owned subsidiary of Nucor and a well-established, global engineer, constructor, supplier and operator of air separation plants and related equipment and services, based in Bethlehem, PA. UIG owns and operates production plants across the USA which supply both Nucor steel sites and third-party clients 24/7 with tonnage quantities of oxygen, nitrogen, and argon as well as exporting liquid cryogenic products by road tanker. Nucor is an Equal Opportunity Employer and a drug-free workplace ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Nov 1, 2026 - Last checked: Nov 1, 2026 - Listed for: Under a day - Location: Bethlehem, PA, US - Pay: $5,000 per year[Apply on Nucor’s careers site →](https://jobs.nucor.com/job/Bethlehem-Sr_-Process-Systems-Engineer-PA-18015/1444473700/) ## Hiring at Nucor - Open jobs: 310 - New in the last 7 days: After two weekly collections - Tracked since: Jul 10, 2026 [All Nucor jobs](https://jobs.opennash.com/companies/nucor/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Nucor ### [Accounts Payable Specialist](https://jobs.opennash.com/companies/nucor/jobs/5af0d8885fab57b745e1/) Bethlehem, PA, US ### [Maintenance Technician](https://jobs.opennash.com/companies/nucor/jobs/48ea9fad95b26b677913/) Bethlehem, PA, US ### [Office Administrator](https://jobs.opennash.com/companies/nucor/jobs/fbd73041f7e47bcb42dc/) Bethlehem, PA, US ### [Production Operator](https://jobs.opennash.com/companies/nucor/jobs/df960a2c03ea9cf0036c/) Bethlehem, PA, US ### [Safety Administrator](https://jobs.opennash.com/companies/nucor/jobs/13d971a6535dc186863a/) Bethlehem, PA, US ## Similar jobs at other companies ### [Systems Engineer Principal – Core Systems Engineering – Lead Systems Engineer](https://jobs.opennash.com/companies/bae-systems/jobs/29aa2e0dd49eb891528f/) BAE Systems · Boulder, Colorado, United States ### [Systems Engineer Senior Principal – Core Systems Engineering – Chief Systems Engineer](https://jobs.opennash.com/companies/bae-systems/jobs/7a505cb999c34e27ca33/) BAE Systems · Broomfield, Colorado, United States ### [Manufacturing Engineer I (Process Engineer)](https://jobs.opennash.com/companies/airbus/jobs/3d2f8c5b91725bb44142/) AIRBUS · Mobile Area, AL ### [Systems Engineer - Combat Systems](https://jobs.opennash.com/companies/lockheed-martin/jobs/cdb84be64109906ae413/) Lockheed Martin · Mount Laurel, NJ ### [Systems Engineer - Hardware Systems- E2](https://jobs.opennash.com/companies/lockheed-martin/jobs/197ed5bba715ba05d3b0/) Lockheed Martin · Owego, NY OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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