Paton Engineers and Constructors · 2 days ago
Experienced Intermediate & Senior I&E Designers
Texas City, TX
Full-time
Onsite
Mid, Senior Level
3+ years expPaton Engineers and Constructors is seeking experienced Intermediate & Senior I&E Designers to lead instrumentation and electrical design for oil & gas projects. The role involves leading design activities across project phases, mentoring junior designers, and ensuring compliance with safety and quality standards.
Oil & Energy
No H1B
Hiring Manager
Tabeth DeRiso
Responsibilities
Lead I&E design activities across project phases (FEED, detailed design, procurement, construction support, pre-commissioning and commissioning)
Promotes safety, quality and lessons learnt for projects
Support and provide input into the development of proposals
Mentor junior designers/drafters and coordinate with procurement, construction and client teams
Maintain design change control, QA/QC reviews, as-built documentation and O&M manuals
Produce and review deliverables: P&IDs, instrument index, I/O lists, loop diagrams, single-line diagrams, cable schedules, wiring diagrams, termination matrices, junction box and panel layouts, and BOMs
Perform electrical calculations: short-circuit, protective device coordination, load flow, voltage drop, cable sizing, motor starting, grounding/earthing and lightning protection
Specify field instruments, analyzers, flowmeters, transmitters, control valves/actuators, RTUs/PLCs/DCS interfaces, and explosion-proof/intrinsically safe equipment
Implement hazardous-area classification (ATEX/IECEx/NEC Class/Division) requirements and specify enclosures, purge systems and cable glands
Develop I/O mapping, control narratives, loop diagrams and interface matrices for PLC/DCS/SCADA, including HART/Fieldbus/Modbus/Ethernet networks
Prepare technical requisitions, evaluate vendor datasheets, review vendor drawings and support FAT/SAT activities
Coordinate with process, mechanical, structural and civil disciplines on routing, supports and layout
Support HAZOP, LOPA and SIL activities; recommend SIF instrumentation and participate in SIL verification/testing
Provide construction and commissioning support: review shop drawings, respond to RFIs, witness factory tests and troubleshoot start-up issues
In partnering with Process, prepare instrument datasheets for pressure, temperature, level, flow transmitters and actuated valves and select appropriate technology for the application
Perform infrastructure design (wiring, cables and associated hardware) of DCS, ESD, BMS, FGS, general-purpose PLCs and analyzer systems
Capable of designing pneumatic, hydraulic and relay controls for specific applications
Perform panel design for the above systems; develop material specifications to support procurement activities
Conduct vendor offer reviews and technical bid evaluations (TBE) for equipment
Support functional safety studies including HAZOP, LOPA and SIL verification for Safety Instrumented Systems (SIS)
Qualification
Required
Minimum 8–12 years' relevant I&E design experience in oil & gas (upstream/downstream) projects
Strong knowledge of hazardous-area equipment selection and standards (ATEX, IECEx, NEC/Class/Division), API, IEC, ISA, IEEE
Proven experience with PLC/DCS/SCADA interfaces, HART/Fieldbus/Modbus/Ethernet networks and instrument bus architecture
Competence in electrical calculations (short-circuit, coordination, load flow, voltage drop), cable sizing and grounding
Experience producing P&IDs, loop diagrams, single-line diagrams, cable schedules, panel layouts and BOMs
Demonstrated ability to lead design reviews, manage change control and deliverables
3–7 years' I&E design experience in oil & gas or related industrial projects
Practical experience producing P&IDs, instrument index, I/O lists, loop diagrams, cable schedules and basic single-line diagrams
Familiarity with hazardous-area concepts and equipment selection (ATEX/IECEx/NEC basics)
Working knowledge of PLC/DCS I/O mapping, HART/Modbus communication basics and control loop tagging
Ability to perform basic electrical calculations (voltage drop, cable sizing, simple load summaries) and follow established protection coordination
Proficient with CAD tools (AutoCAD, AutoCAD Electrical, MicroStation) and MS Office; exposure to SPI/Intergraph or ETAP advantageous
Support senior designers in vendor data reviews, technical requisitions, RFIs, shop drawing checks and on-site commissioning assistance
Strong communication, attention to detail and willingness to travel to project sites as required
Preferred
Experience working in an EPC environment
Brownfield and revamp project experience
Field or construction support experience
Experience acting as lead I&E Designer on projects
Familiarity with DCS, PLC and SIS Systems
Benefits
Competitive compensation based on experience
Opportunities to work on large, technically challenging projects
Career growth into Lead, Principal, or Technical Leadership roles
Collaborative team environment with strong technical depth
Flexible work arrangements (where applicable)
Company
Paton Engineers and Constructors
At Paton, we engage our most important asset "people".
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Jeff Markovich
President & CEO
Bruce Sauers
Chief Financial Officer
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