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Controls & Automation Engineer (Contractor)

Open Book Extracts -
Roxboro, NC

Quick Apply

Job Details

Contract
$60 - $100 an hour
9 days ago

Qualifications

PLC-based control system operation
Temperature sensors
System troubleshooting
Engineering development testing
Flow sensors
Machine troubleshooting
System design
Industrial equipment troubleshooting
Programming languages
System testing
Design engineering
Proportional, integral & derivative (PID) control loop tuning
Commissioning phase involvement
System tuning
Field commissioning
Electrical control system design

Full Job Description

Contract ControlsAutomation Engineer

Location: Roxboro, NC (Hybrid; On-site preferred initially and as needed)Contract Duration: 3–5 WeeksCompensation: $60–$100/hour (based on experience and qualifications)

Position Overview

Open Book Extracts is seeking an experienced ControlsAutomation Engineer for a short-term project focused on upgrading and automating an existing continuous solvent extraction skid. This role is ideal for a hands-on automation professional with strong PLC programming experience who can design, develop, and implement robust control logic on an existing Beckhoff automation platform.The primary objective of this project is to transform the operation of our outdoor extraction pad from a largely operator-controlled process to a fully automated system capable of reliable steady-state operation. The selected contractor will be responsible for designing, programming, testing, and commissioning the automation logic required to achieve this goal.

Project ScopeThe contractor will lead the controls upgrade effort, including:

Upgrading PLC and sensor infrastructure on the outdoor extraction pad
Transitioning process control from manual operator intervention to automated machine-driven logic
Designing and implementing automated process sequencing and operational logic
Developing safe, reliable controls that improve consistency, throughput, and operator efficiency

Key Responsibilities

Design, develop, and implement PLC control strategies using the existing Beckhoff PLC platform
Write and modify Structured Text (ST) code within TwinCAT 3
Develop automated process sequencing and steady-state operating logic
Integrate new instrumentation and sensors, including:
- Weight sensors
- Flow sensors
- Torque sensors
- Temperature sensors
Configure and tune PID control loops for process stability and performance
Update and enhance TwinCAT HMI visualizations and operator interfaces
Design robust batch loading sequences and continous steady state process automation routines
Implement safety interlocks and fault-handling logic

Test, troubleshoot, and commission automation changes on existing hardware
Collaborate with operations and engineering personnel to validate system performance

Required Qualifications

Proven experience as a Controls Engineer, Automation Engineer, or PLC Programmer
Strong Beckhoff PLC programming experience
Proficiency with TwinCAT 3 development environment
Advanced Structured Text (IEC 61131-3) programming skills
Experience integrating industrial instrumentation and sensors
Demonstrated PID loop tuning experience
Experience designing automated process sequences and machine logic
Ability to independently develop, test, and deploy control system solutions
Strong troubleshooting and commissioning capabilities

Preferred Qualifications

Experience with batch and continuous processing systems
Experience in chemical processing, extraction systems, manufacturing, or industrial process automation
Familiarity with continuous process control environments
HMI development and visualization experience within TwinCAT

Work Arrangement

This is a project-based contract expected to last approximately 3–5 weeks. On-site presence in Roxboro, NC is strongly preferred during project kickoff and key implementation phases, with hybrid flexibility available as project needs allow.Success CriteriaThe successful contractor will deliver:

Fully automated process control logic replacing manual operator control
Reliable batch loading and process sequencing functionality
Integrated and validated sensor upgrades
Stable PID-controlled process operation
Updated TwinCAT HMI screens and operator controls
Safe, maintainable, and well-documented automation code running on existing Beckhoff hardware

Physical Demands and Working Environment:

May be required to stand and/or walk for extended periods of time. Must be able to lift, carry and balance up to 50 pounds
While performing the duties of this job, the employee is regularly required to perform grasping, talking, hearing, seeing and repetitive motions.
Ability to walk and stand for long periods of time (4-6 hours) with frequent kneeling and bending.
Working in limited climate-controlled facilities and experiencing extreme heat or cold.
Work with heavy fumes, plants, airborne particles and chemicals
Must be comfortable working with and around heavy machinery
May experience moderately high noise levels

Equal Employment Opportunity (EEO) Statement

Open Book Extracts is proud to be an equal opportunity employer. We embrace diversity and are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

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plc engineer jobs in roxboro nc

Controls & Automation Engineer (Contractor)

Electrical Controls Engineer

Plant Controls Engineer

Senior Project Engineer

Project Engineer, Commissioning Services

Controls Commissioning / Automation Commissioning Engineer-Travel required in the US 50% of the time

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