Instrument Engineer

Keystone Engineering Inc. opened for business in 1988 and for decades, has been a reliable provider of qualified engineering resources and technically innovative solutions. Keystone was founded to be an enduring company, and to provide an environment for our employees and clients to innovate, thrive, and be successful.

Keystone's family of companies include : Milestone Project Services, SIS SILverstone, VeraPro, and Salmon & Associates

Our varied and extensive experience indicates that successful projects come down to personnel. We incorporate their individual skills in a process that's geared toward excellence. The intentional pairing of people and process is the reason why clients know that they can trust their projects in the hands of Keystone. Services Offered : 3D Laser Scanning, Controls & Automation, Construction Management, Design & Drafting, Engineering : Civil / Structural, Electrical, Mechanical, Process, Functional Safety, Information Technology, Instrumentation, On-Site Services, Operations & Commissioning Support, Procurement, Project Management.

Keystone Engineering is currently seeking an Instrument Engineer for our Port Arthur Area Office Team.

Position Type : Full-time

Location : Port Arthur, TX

Work Environment / Physical Demands : Office / Sedentary, work includes time in industrial operating units.

Travel Requirements

Occasional travel for site inspections, vendor FATs, or commissioning support.

Essential Functions :

• Develop and specify instrumentation systems for complex process control applications in petrochemical and manufacturing environments.
• Select instruments and control devices suitable for harsh environments (e.g., hazardous areas, corrosive chemicals, high-temperature operations).
• Generate and review P&IDs, instrument datasheets, control panel designs, cable schedules, control narratives, loop diagrams, wiring diagrams, and IO lists.
• Support field installation, calibration, and loop-checking of instruments and control devices.
• Perform pre-commissioning and commissioning activities, ensuring all systems function according to process and safety requirements.
• Ensure instrumentation systems comply with industry codes and standards (API, ISA, IECEx, ATEX, NEC, etc.).
• S upport compliance with process safety standards (e.g., SIL ratings, HAZOP recommendations, alarm management).
• Participate in safety audits and provide technical expertise on instrument-related safety systems.
• Interface with EPC contractors, vendors, and internal teams on instrumentation packages and control system integration.
• Maintain and update instrument databases, calibration records, and system documentation.
• Provide technical reports, inspection summaries, and recommendations for improvements.
• In-depth understanding of process instrumentation and control strategies.
• Experience with hazardous area classification and intrinsically safe systems.
• Familiar with tools like SPI (SmartPlant Instrumentation), AutoCAD, or equivalent.

Requirements :

Experienced Preferred :

Equal Opportunity Employer, including disabled and veterans.

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