Senior Instrumentation Engineer - Field & Design Lead

Keystone Engineering Inc.

Lake Charles (LA)

On-site

USD 90,000 - 120,000

Full time

14 days+

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Job summary

Keystone Engineering Inc. is seeking an Instrument Engineer for a Lake Charles area on-site client position. You will provide instrumentation engineering expertise across operations, capital projects, and turnarounds, owning technical changes in the facility.

The role requires a B.S. in Engineering, 8+ years in PSM-regulated petrochemical or refining environments, and hands-on experience with DeltaV, ABB, and Allen Bradley systems, plus strong communication.

Qualifications

B.S. in Engineering from an ABET-accredited program.
8+ years of detailed engineering and design experience in PSM-regulated petrochemical or refining industries.
Willingness to travel for field work and site communications; authorized to work in the U.S.

Responsibilities

Investigate instrumentation failures, control loop anomalies, and instrumented system deficiencies and develop corrective action recommendations.
Root cause analysis of instrumentation failures during startup, shutdown, or abnormal operations.
Size and specify instrumentation for flow, pressure, level, temperature, and analytical applications per applicable standards.
Develop and review instrument datasheets, specifications, and installation details.
Review and approve vendor data sheets and fabrication packages for instrumentation and control equipment.
Serve as engineer of record for on-site instrumentation engineering and design.
Support design, configuration, and modification of DCS systems including I/O architecture and wiring — with preference for Emerson DeltaV and ABB platforms.
Support PLC design and programming review including ladder logic and function block diagrams — with preference for Allen Bradley.
Define instrumentation and controls integration requirements for capital projects and facility modifications.
Support SIS design activities in compliance with IEC 61511 and ISA 84
Participate in SIL assessments and safety requirement specification (SRS) development.
Participate in or lead PHA/HAZOP reviews for instrumented systems and control loops.
Ensure compliance with ISA, IEC, NEC, and API standards; support the waiver process when necessary.