Job Details

Requisition Number 16-0109
City Houston
State TX

Position Title: Senior Principal Instrumentation Engineer


Location: Houston, TX


Gulf Interstate Engineering serves the worldwide pipeline industry providing project management, engineering and design, GIS, procurement and construction management services for hydrocarbon transportation systems - from the wellhead to the export terminal and the burner tip.


Position Description

The Senior Principal Instrumentation Engineer handles medium, large and complex projects. He/she has wide latitude of technical authority with full work responsibilities, as well as limited administrative responsibilities, over a group of Instrumentation Engineers and Designers. He/she may assign and review work of lower level personnel. He/she may also function as the Lead Instrumentation Engineer, responsible for all discipline technical and scheduling matters pertaining to the assigned project. Work is periodically reviewed by the Chief Instrumentation Engineer for accomplishment of objectives.


Essential Functions

  • Assists the Chief Instrumentation Engineer in proposals.
  • Assists the Chief Instrumentation Engineer in providing training to personnel.
  • Prepares or reviews discipline job specifications.
  • Prepares or reviews requisitions for inquiry and purchase of equipment, materials, and subcontracts.
  • Approves technical bid evaluations for equipment, materials, bulk materials and subcontracts in cooperation with the Procurement Department.
  • Prepares and reviews/approves operation philosophy and Cause & Effect diagrams.
  • Reviews and provide inputs to Piping and Instrumentation Diagrams (P&IDs) and Process Flow Diagrams (PFDs)
  • Develops Network Architecture, Instrument Index, I/O List and layouts as required by the discipline.
  • Directs/observes factory acceptance testing of equipment.
  • Reviews plot plans and facilities for Instrumentation & Control System requirements.
  • Coordinates with and provides liaison with client personnel relative to Instrumentation & Control activities.
  • Reviews and approves vendor documents.
  • Prepares or reviews engineering and design status reports, work plans and man-hour estimates.
  • Reviews the discipline scope of work to be executed to ensure it matches project specification and/or the proposal documents as appropriate.
  • Accepts both short and extended term assignments to the site, client’s office, etc. as may be requested by the Chief Instrumentation Engineer.



  • Typically 15+ years proven experience in oil and gas, focusing on pipeline facilities. 
  • In depth knowledgeable of natural gas industry standards and codes published by NEMA, NFPA, API, AGA, ISA, IEC, ANSI, etc. and have the ability to apply the standards to measurement, process control and control system designs.
  • Knowledge of computer systems in an engineering environment.
  • Excellent written and verbal communication skills.


  • Bachelor of Science degree in in Mechanical, Electrical or Chemical Engineering
  • Professional Engineering License preferred



  • Results oriented
  • Customer focused
  • Impact and influence
  • Business and people acumen
  • Strong interpersonal skills to work with Multi-Disciplined Team, and Managers
  • Strong organizational skills to handle multiple projects at once
  • Strong communication and networking skills to work with variety of groups and people



Instrumentation Engineering is a highly specialized group whose function is to provide design-engineering service covering:
·Network Architecture – Develop the optimum instrumentation and control system based upon desired reliability, maintainability, flexibility, Integration and cost.
  • Cause and Effect – Develop matrix logic of critical conditions where if a cause happens what should be the effect. Engineer should identify the possible root causes, sort out and relate some of the interactions among the factors affecting a particular process or effect and analyze existing problems so that corrective action can be taken.
·Operation Philosophy – Develop narrative of how plant operates and its integration with the control systems.
·Safety Instrumented System (SIS)– Determine location, size and arrangement of major equipment.
·Basis Process Control System (BPCS) – Determine location, size and arrangement of major equipment.
·Standards Specifications – Responsible for technical content of standards and preparation of specification including:
  • SCADA  Systems
  • Temperature, Pressure, Level and Flow Transmitters
  • Safety Instrumented Systems
  • Basic Process Control Systems
  • Temperature, Pressure, Level and Flow Switches
  • Fire and Gas Systems
  • Temperature, Pressure, and Level Gauges
  • Analyzer Systems
  • Flow meters
  • Leak detection Systems
  • Security Systems
  • Telecommunication Systems
  • Commissioning and Operation Manuals
·Construction Drawings – Approved for construction drawings and schedules:
  • Network Architecture
  • Interconnecting Wiring Diagrams
  • Instrument location Plan
  • Raceway and cable schedule
  • Control System Block Diagrams
  • Installation Details
  • Loop Diagrams


  • Instrument Wiring Diagrams


All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

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