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Instrument & Electrical (I&E) Designer

Oil & Gas Midstream — Pharmaceutical — Food & Beverage — Consumer Products

Document No.

HPF-JD-IED-001

Title

Instrument & Electrical (I&E) Designer

Department

Operations

Immediate Supervisor

I&E Engineering Manager

FLSA Classification

Non-Exempt

Revision

Effective Date

May 7, 2026

1.0 Position Summary

The Instrument & Electrical (I&E) Designer produces detailed instrumentation and electrical design drawings, panel layouts, wiring packages, and construction-issue drawing sets for oil & gas midstream facilities, with secondary application to pharmaceutical, food & beverage, and consumer products clients. The I&E Designer is a senior CAD-focused technical role that bridges Engineering and Drafting: working under engineer direction to translate one-line diagrams, schematics, instrument indices, and field data into installation-quality drawings, while also supervising and mentoring junior drafters. The role requires working knowledge of the National Electrical Code (NFPA 70), Electrical Safety in the Workplace (NFPA 70E), NEMA standards, UL 508A panel construction, and common IEC and ISA symbology.

2.0 Core Functions and Responsibilities

The incumbent will perform the following primary duties and responsibilities. Additional duties may be assigned by the Engineering Manager or Director of Engineering as project demands evolve.

Read and interpret Process Flow Diagrams (PFDs), Piping & Instrumentation Diagrams (P&IDs), general equipment layouts, plot plans, and instrument and equipment lists for compressor stations, gas processing facilities, RNG plants, well pads, pipeline terminals, and process plants.
Attend project kickoff and discipline coordination meetings to understand client scope and provide design feedback that improves constructability and reduces field rework.
Perform electrical and instrumentation system field walk-downs, photograph and measure existing installations, and produce as-built drawings of brownfield facilities.
Develop construction-issue drawing sets including electrical one-line diagrams, three-line diagrams, motor schematics, control schematics, junction box wiring, instrument loop diagrams, conduit and cable routing plans, grounding plans, lighting plans, area classification plans, and bills of material.
Develop conduit and cable schedules, including cable sizing and conduit fill calculations per NEC Articles 310, 392, and Chapter 9, derating for ambient and grouping conditions.
Design PLC and instrument panel layouts including bill of materials, internal wiring, terminal block schedules, and nameplates, in compliance with UL 508A and the panel-shop's quality standards.
Develop instrument installation details (hook-ups), tubing manifold details, and impulse piping details consistent with manufacturer standards and ISA RP-75 for control valve installation.
Develop interconnection diagrams, MCC schedules, and panelboard schedules.
Coordinate with other disciplines (Process, Mechanical/Piping, Civil/Structural, Automation) for routing, equipment locations, support coordination, and clash resolution; participate in 3D model reviews where applicable.
Lead and mentor I&E Drafters: assign work, train on HPF and client CAD standards, and review drawings for technical and presentation quality before they reach the engineer-of-record.
Maintain CAD standards, drawing templates, title-blocks, layer setup, and block libraries.
Implement engineer redlines and incorporate client mark-ups into successive drawing revisions; maintain change logs and revision history.
Produce IFR (Issued for Review), IFA (Issued for Approval), IFC (Issued for Construction), and AB (As-Built) drawing packages on schedule.
Support field activities including punch-list resolution, RFI markup, and red-line collection during construction and commissioning visits.
Operate within document control and configuration management systems (Bluebeam Studio, SharePoint, ProjectWise, Aconex) to maintain up-to-date drawings.
Other functions as directed by the I&E Engineering Manager.

3.0 Top Ten Deliverables

The following deliverables represent the principal outputs expected from this role on a typical midstream project. Discipline ownership, format, governing standard, and prerequisite inputs are summarized below.

Deliverable

Type

Format / Tool

Governing Standard

Prerequisites

1 One-Line Diagrams (LV / MV)

Drawing
AutoCAD .dwg
IEEE 315, NEC
Engineer's design basis, load list, equipment specs

2 Motor & Control Schematics

Drawing
AutoCAD Electrical / .dwg
NEMA ICS, NEC, NFPA 79
Motor list, control narrative, MCC schedule

3 Instrument Loop Diagrams

Drawing
AutoCAD .dwg / SmartPlant
ISA-5.4
Instrument index, I/O list, panel wiring

4 PLC & Instrument Panel Layouts (GA, Wiring, BOM)

Drawing Set
AutoCAD .dwg + Excel BOM
UL 508A, NEMA 250, NEC
Panel scope, I/O list, terminal philosophy

5 Conduit & Cable Schedules and Routing Plans

Drawing + Spreadsheet
AutoCAD .dwg + Excel
NEC 310, Ch.9, NEC 392
Plot plan, equipment locations, ampacity data

6 Grounding & Bonding Plan

Drawing
AutoCAD .dwg
IEEE 80, IEEE 142, NEC 250
Plot plan, soil resistivity, equipment GA

7 Lighting Plan

Drawing
AutoCAD .dwg
IES RP-7, NEC
Plot plan, photometric study, fixture schedule

8 Hazardous Area Classification Plan

Drawing
AutoCAD .dwg
NEC 500/505, API RP 500/505
Source-of-release data, ventilation, plot plan

9 Instrument Installation (Hook-Up) Details

Drawing Set
AutoCAD .dwg
Mfr Std, ISA RP-75
Instrument datasheets, piping specs, tubing standard

10 Junction Box / Marshalling Cabinet Wiring Diagrams

Drawing Set
AutoCAD .dwg
ISA-5.4, NEC
I/O list, cable schedule, panel layout

4.0 Key Performance Indicators (KPIs)

Performance against the following KPIs will be tracked through HPF's project management and quality systems and reviewed during quarterly performance discussions and the annual review.

KPI / Metric

Target

On-time drawing release (IFR/IFA/IFC/AB)

≥ 95% on schedule

Internal QC findings per drawing (Major)

≤ 2 per IFR submittal

Field RFI rate from issued drawings

≤ 0.5 RFI per drawing

Drawing standards compliance (layer, title-block, line work)

≥ 98% on first internal review

BOM accuracy (qty / part number / mfr)

≥ 98% reconciled at IFC

Drafter mentorship & redline turnaround

≤ 24 hours after engineer markup

Billable utilization (annualized)

85% – 95%

Rework (drawings re-issued for designer error)

≤ 3% of total IFC drawings

CAD standard contributions (blocks, templates, libraries)

≥ 4 per year

Continuing education hours (annual)

≥ 16 hrs (training, vendor schools)

5.0 Applicable Codes, Standards, and Regulations

The incumbent is expected to maintain working knowledge of the following codes and standards. Where client or jurisdictional requirements impose more stringent criteria, those requirements shall govern.

NFPA 70 (NEC) — All articles applicable to industrial design
NFPA 70E — Electrical Safety in the Workplace
NFPA 79 — Industrial Machinery (where applicable)
UL 508A — Industrial Control Panels
NEMA 250 — Enclosures
NEMA ICS — Industrial Control Standards
IEEE 315 — Graphic Symbols
ISA-5.1 / ISA-5.4 — Instrumentation Symbols / Loop Diagrams
IES RP-7 — Industrial Lighting
API RP 500 / RP 505 — Hazardous Area Classification

6.0 Tools, Software, and Platforms

The incumbent will use the following tools and platforms. Project assignments may require additional client-specified software; HPF will provide reasonable training to support adoption.

AutoCAD (LT, Mechanical, Electrical) — primary platform
AutoCAD Plant 3D / Navisworks (familiarity for routing coordination)
Bentley MicroStation (per client standard)
Bluebeam Revu — review and markup
Microsoft Excel (advanced — schedules, BOMs)
SmartPlant Instrumentation / SPI (familiarity)
ProjectWise / SharePoint / Aconex — document control
Adobe Acrobat Pro

7.0 QualificationsRequired

Two (2)+ years of college drafting/design coursework, technical-school certification in CAD or equivalent experience.
Five (5)+ years of design and drafting experience in industrial, oil & gas, or related I&E settings.
Advanced AutoCAD proficiency, including AutoCAD Electrical and customization (lisp/scripts) preferred.
Demonstrated authorship of complete IFC drawing packages including one-lines, schematics, panel layouts, loop diagrams, and conduit/cable schedules.
Working knowledge of NEC, UL 508A, NEMA, IEEE, and ISA-5.4 symbology.
Ability to perform field walk-downs and produce accurate as-built drawings.
Strong communication skills for cross-discipline coordination and engineer-of-record interaction.
Demonstrated leadership ability to mentor and check the work of junior drafters.
Valid driver's license; able to pass basic site-safety training (SafeLand / OSHA-10 minimum).

Preferred

AutoCAD Electrical certification or equivalent vendor certification.
Experience with 3D plant design platforms (Plant 3D, SmartPlant 3D, PDMS).
Experience with laser-scan / point-cloud workflows and as-built generation.
Familiarity with PLC panel fabrication and shop drawing review (UL 508A panel-shop interaction).

8.0 Work Authorization

HPF Consultants, Inc. is not currently sponsoring employment visas for this position.
All candidates must be legally authorized to work in the United States without restriction.
All employees must pass a pre-employment drug and alcohol screening; once hired, employees may be subject to random testing in accordance with client and regulatory requirements.

9.0 Physical Requirements and Working Conditions

Prolonged periods of sitting at a workstation operating computers, monitors, and engineering software.
Occasional field work requiring standing, walking, climbing stairs and ladders, balancing, stooping, kneeling, and use of hands and fingers to operate tools and controls.
Use of close vision, distance vision, depth perception, and the ability to adjust focus.
Must be able to lift up to fifteen (15) pounds occasionally.
Field assignments may include outside conditions and exposure to elevated temperatures, noise, and hazardous (Class I, Division 2) area classifications.
Required to wear personal protective equipment (PPE) including hard hat, safety glasses, hearing protection, FRC, and safety footwear during site visits.
Travel to client facilities (regional and out-of-state) up to 25% may be required.
Frequent field assignments for walk-downs, as-built verification, and construction support; ability to work in hazardous (Class I, Div 2) area classifications and elevated platforms.

Qualifications:

Two (2)+ years of college drafting degree, technical school training, or equivalent experience in CADD drafting software, processes, methods, or systems
Five (5)+ years of design/drafting experience
Knowledgeable in referencing codes, standards, guides
Valid driver’s license

Physical Requirements:

Frequently be required to stand, walk, sit, reach with hands and arms, climb stairs and ladders, balance, stoop or kneel, talk and hear, and use fingers and hands to feel objects, tools or controls
frequently use up-close vision, distance vision, depth perceptions, and the ability to adjust focus.
Extended amounts of time at a workstation utilizing equipment such as computer monitors, keyboard, telephone, etc.
In some cases, the site working environment may include outside conditions and exposure to high temperatures.
Must be able to lift-up to 15 pounds at times.

HPF Consultants, Inc. is an Equal Opportunity Employer and does not discriminate in regard to race, color, creed, age, religion, ancestry, national origin, sex, marital status or disability. We comply with all local, state, and federal laws pertaining to employment and discrimination will not be tolerated.

Job Type: Full-time

Benefits:

401(k)
401(k) matching
Dental insurance
Flexible schedule
Health insurance
Life insurance
Paid time off
Vision insurance

Schedule:

10 hour shift
4x10

Ability to commute/relocate:

Midland, TX 79705: Reliably commute or planning to relocate before starting work (Required)

Experience:

AutoCAD: 1 year (Preferred)

Work Location: One location

Job Type: Full-time

Pay: $35.00 - $65.00 per hour

Benefits:

401(k)
Dental insurance
Health insurance
Paid time off

Application Question(s):

NO AI RESUMES WILL BE CONSIDERED! Do you understand before moving on to the submission phase. If you understand please respond with pi to the 7th decimal.

Experience:

One-Line Diagrams (LV / MV): 5 years (Required)
PLC & Instrument Panel Layouts (GA, Wiring, BOM): 5 years (Required)
Junction Box / Marshalling Cabinet Wiring Diagrams: 5 years (Required)

Location:

Midland, TX 79705 (Required)

Shift availability:

Day Shift (Preferred)

Ability to Commute:

Midland, TX 79705 (Required)

Willingness to travel:

25% (Required)

Work Location: In person

HPF Consultants, Inc.

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