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Senior Process Systems Engineer

NEXHR
Bethlehem, PA Full Time
POSTED ON 12/12/2025 CLOSED ON 1/10/2026

What are the responsibilities and job description for the Senior Process Systems Engineer position at NEXHR?

Job Summary: A Sr. System Engineer is a critical role focused on system integration activities supporting complex industrial proposals and projects. The ideal candidate will excel at translating intricate design information into technical documentation, including Piping & Instrument Diagrams, equipment specifications, and Plot Plan development. Projects typically involve green-field installations, plant relocations, and capacity/efficiency upgrades across diverse industrial settings. A Sr. Systems Engineer plays a pivotal role in supporting comprehensive engineering initiatives that require advanced technical expertise and strategic systems integration skills.

Principal Responsibilities:

  • Lead integration related activities in support of proposals and projects including but not limited to interpreting Chemical process simulations of air separation plants and other systems for downstream equipment development.
  • Develop mechanical specifications for process equipment (compressors, pumps, heat exchangers, distillation columns, separators, reactors, etc.).
  • Developing Piping & Instrumentation Diagrams (P&IDs)
  • Develop process conditions for control valves and safety valves (including alternative scenarios for safety valve sizing).
  • Develop line lists and instrumentation lists, as needed.
  • Develop alarm and trip setpoint lists.
  • Coordinating HAZOPS and resolution of HAZOP actions
  • Participate in plant mechanical checkouts, instrumentation/control loop checkouts, and developing/issuing as-built P&IDs to reflect all site modifications during commissioning (up to 30% in the field).
  • Support proposals/projects by soliciting equipment bids as needed.

Required Skills:

  • Proficiency in process plant documentation development (P&IDs, equipment bid packages, line lists, instrument lists, etc).
  • Proficiency in HAZOP activities.

Basic Qualifications:

  • BS or higher degree in Chemical Engineering
  • 5 years of experience in P&ID development, chemical systems engineering or related field.

Salary : $140,000 - $150,000

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