Mid level controls engineer/ programmerFreezer Engineering • Houston, TX, US

Mid level controls engineer / programmer

Freezer Engineering • Houston, TX, US

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Job Description

Computer Science Programming or Controls Automation Engineer (PLC / HMI – Rockwell & Siemens)

Level : Mid–Senior

Industry Focus : Oil & Gas | Water & Wastewater | Chemical Processing

Location : Houston, TX or Englewood, CO

Employment Type : Full-Time

Position Summary

We are seeking a mid-to-senior level Programmer / Controls Engineer with strong expertise in industrial automation, process control, and system integration using Rockwell Automation and Siemens platforms. The successful candidate will design, develop, and commission control systems across a range of industrial projects in oil & gas, water / wastewater treatment, and chemical processing environments.

This role involves taking ownership of the entire automation lifecycle — from conceptual design through commissioning and support — while collaborating with cross-disciplinary engineering teams to deliver safe, reliable, and efficient automation solutions.

Key Responsibilities

Design, program, and commission PLC and HMI systems using Rockwell (ControlLogix, CompactLogix, FactoryTalk View SE / ME) and Siemens (S7-1200 / 1500, TIA Portal, WinCC) platforms.
Develop control logic, interlocks, and PID control strategies for continuous and batch processes.
Configure and integrate VFDs, instrumentation, and SCADA systems using industrial communication protocols such as EtherNet / IP, Modbus, Profibus, and Profinet.
Collaborate with process and electrical engineers on control system architecture, I / O design, and P&ID integration.
Perform factory acceptance testing (FAT), site acceptance testing (SAT), and field commissioning at client sites.
Prepare technical documentation including control narratives, I / O lists, cause & effect matrices, and user manuals.
Troubleshoot, optimize, and upgrade existing control systems to improve safety, reliability, and performance.
Ensure all control systems comply with industry standards (ISA, NFPA 70, IEC 61131-3) and site safety requirements.

Qualifications Education & Experience

Bachelor’s degree in electrical engineering, Control Systems, Mechatronics, or related discipline.

5–10 years of hands-on experience in PLC / HMI development and process automation.

Demonstrated experience with Rockwell Automation (ControlLogix, CompactLogix, FactoryTalk View) and Siemens (TIA Portal, S7, WinCC) systems.

Proven background in oil & gas, water treatment, or chemical plant automation projects.

Proficiency in control panel design, network configuration, and industrial instrumentation.

Preferred Skills

Familiarity with PlantPAx DCS, Siemens PCS 7, or other distributed control systems.

Experience with SCADA, historians (FactoryTalk Historian, PI), and data integration.

Understanding of functional safety (SIL-rated systems) and safety PLCs.

Strong ability to read and interpret P&IDs, loop diagrams, and electrical schematics.

Excellent communication, documentation, and analytical problem-solving skills.

Personal Attributes

Self-motivated and proactive in solving technical challenges.

Able to work independently or as part of a multidisciplinary engineering team.

Willingness to travel for site commissioning and client support (approximately 10–25%).

Strong commitment to safety, quality, and continuous improvement.

Compensation & Benefits

Competitive salary commensurate with experience.

Comprehensive health, dental, and vision insurance.

Paid vacation, holidays, and sick leave.

Professional development, training, and certification opportunities.

How to Apply

Submit your resume and a brief cover letter outlining your relevant project experience and PLC / HMI expertise to [insert email or application portal].

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