Controls Engineer Job Description — Duties, Skills, Salary & Career Path
Modern manufacturing runs on automation — and Controls Engineers are the professionals who design, program, and maintain the systems that make it possible. From robotic welding cells on automotive lines to batch-process control in pharmaceutical plants, every automated system requires someone who can bridge electrical engineering, software logic, and mechanical integration. The BLS projects 7% growth for electrical and electronics engineers through 2034, with about 17,500 openings annually [1], and Controls Engineers occupy a specialized niche within this field that commands premium compensation.
Key Takeaways
- Controls Engineers design, program, and troubleshoot automated control systems including PLCs, SCADA, DCS, and HMIs.
- The median annual wage for electronics engineers was $127,590 in May 2024; industry surveys place Controls Engineers around $125,000 [1][3].
- A bachelor's degree in electrical engineering, controls engineering, or mechatronics is standard.
- Employment growth of 7% from 2024 to 2034 reflects expanding industrial automation and smart-manufacturing adoption [1].
- Core competencies span PLC programming (Allen-Bradley, Siemens), industrial networking, and process instrumentation.
What Does a Controls Engineer Do?
A Controls Engineer ensures that manufacturing and process equipment operates efficiently, safely, and reliably through automated control systems. This involves designing control-system architectures, writing PLC and HMI programs, specifying sensors and actuators, commissioning equipment on the factory floor, and troubleshooting system failures during production [2]. The role sits at the intersection of electrical engineering, computer science, and industrial operations — requiring both theoretical knowledge of control theory and hands-on experience with industrial hardware.
In practice, a Controls Engineer might spend a morning programming a Rockwell Automation ControlLogix PLC for a new packaging line, then head to the plant floor to commission variable-frequency drives and calibrate temperature sensors, followed by an afternoon reviewing P&ID diagrams with process engineers to plan a batch-control upgrade [3].
Core Responsibilities
- Design control-system architectures — Develop electrical schematics, I/O lists, and network diagrams for new and retrofit automation projects.
- Program PLCs and PACs — Write structured text, ladder logic, and function-block programs for Allen-Bradley, Siemens, or Mitsubishi controllers.
- Develop HMI/SCADA applications — Create operator interfaces using FactoryTalk View, Ignition, WonderWare, or Siemens WinCC.
- Commission automated equipment — Perform I/O checkout, loop tuning, functional testing, and startup of control systems on-site.
- Integrate industrial networks — Configure EtherNet/IP, Profinet, Modbus, DeviceNet, and OPC-UA communications between field devices and control systems.
- Tune control loops — Optimize PID parameters for temperature, pressure, flow, and level control to meet process performance targets.
- Troubleshoot system failures — Diagnose hardware faults, software bugs, and communication issues in production-critical equipment.
- Specify instrumentation — Select sensors, transmitters, actuators, and safety devices based on process requirements and environmental ratings.
- Ensure safety compliance — Design safety-instrumented systems (SIS) per IEC 61508/61511 and implement safety-rated PLCs (GuardLogix, Siemens F-CPU).
- Document control systems — Maintain up-to-date electrical drawings, PLC programs, network diagrams, and commissioning records.
- Support continuous improvement — Identify automation opportunities that reduce downtime, improve quality, or increase throughput.
- Collaborate with cross-functional teams — Work with mechanical, process, and manufacturing engineers to integrate controls into broader system designs.
Required Qualifications
- Education: Bachelor's degree in electrical engineering, controls engineering, mechatronics, or a related field [1].
- PLC programming: Proficiency with at least one major PLC platform (Rockwell Automation, Siemens, Schneider Electric).
- Electrical knowledge: Understanding of power distribution, motor control, variable-frequency drives, and instrumentation.
- Industrial networking: Familiarity with EtherNet/IP, Profinet, Modbus TCP/RTU, and fieldbus protocols.
- Blueprint reading: Ability to interpret and create electrical schematics, P&IDs, and control-panel layouts.
- Problem-solving: Systematic troubleshooting skills for electromechanical systems under production pressure.
Preferred Qualifications
- Professional Engineer (PE) license.
- Experience with DCS platforms (Emerson DeltaV, Honeywell Experion, ABB 800xA).
- Robotics programming (FANUC, ABB, KUKA, Universal Robots).
- Vision-system integration (Cognex, Keyence).
- Knowledge of ISA-88 (batch control) and ISA-95 (MES integration) standards.
- Experience in regulated industries (pharma, food & beverage, oil & gas).
Tools and Technologies
| Category | Tools |
|---|---|
| PLC/PAC | Allen-Bradley ControlLogix/CompactLogix, Siemens S7-1500, Mitsubishi iQ-R |
| HMI/SCADA | FactoryTalk View, Ignition (Inductive Automation), WonderWare, WinCC |
| DCS | Emerson DeltaV, Honeywell Experion, ABB 800xA |
| Drives | Allen-Bradley PowerFlex, Siemens SINAMICS, ABB ACS |
| CAD/Design | AutoCAD Electrical, EPLAN, SolidWorks Electrical |
| Simulation | MATLAB/Simulink, Emulate3D |
| Networking | EtherNet/IP, Profinet, Modbus, OPC-UA |
| Safety | GuardLogix, Siemens F-CPU, SISTEMA |
Work Environment
Controls Engineers split time between office-based design work and hands-on commissioning and troubleshooting on the factory floor or at client sites [2]. Manufacturing environments may be noisy, hot, or cold, and involve exposure to industrial equipment. Travel is common — particularly for system integrators and OEM suppliers who commission equipment at customer facilities. During startup and turnaround periods, extended hours including nights and weekends are standard. Safety protocols (lockout/tagout, PPE, arc-flash protection) are strictly enforced.
Salary Range
Based on BLS data for electrical/electronics engineers and industry surveys [1][3]:
| Experience Level | Annual Salary Range |
|---|---|
| Entry-level (0-3 years) | $75,000 – $95,000 |
| Mid-level (4-7 years) | $95,000 – $125,000 |
| Senior (8-12 years) | $125,000 – $155,000 |
| Lead / Principal | $145,000 – $180,000+ |
Controls Engineers at system-integrator firms, oil & gas companies, and pharmaceutical manufacturers tend to earn at the higher end. Overtime and travel premiums can substantially increase total compensation [4].
Career Growth
Controls Engineers progress from entry-level programmer to senior engineer within 5-7 years, then into Lead Controls Engineer or Controls Engineering Manager roles. Some specialize in safety-instrumented systems, robotics, or building-automation systems (BAS). Others transition into systems integration consulting, project management, or sales engineering for automation vendors. The convergence of IT and OT (operational technology) is creating demand for Controls Engineers who understand cybersecurity, cloud connectivity, and IIoT (Industrial Internet of Things) — skills that command premium salaries [5].
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FAQ
What degree do I need to become a Controls Engineer? A bachelor's in electrical engineering, controls engineering, or mechatronics is standard. Some enter from mechanical or computer engineering backgrounds with relevant automation coursework [1].
How much do Controls Engineers earn? Industry surveys report a median of approximately $125,000. Senior engineers and those in oil & gas or pharma can exceed $155,000 [3].
What PLC platforms should I learn? Allen-Bradley (Rockwell Automation) dominates North American manufacturing. Siemens is the global leader. Familiarity with both is ideal for maximum career flexibility [2].
Is Controls Engineering a good career? Yes. Industrial automation is expanding across every manufacturing sector, and the supply of qualified Controls Engineers consistently falls short of demand [1].
What is the difference between a Controls Engineer and an Automation Engineer? The titles are often used interchangeably. Controls Engineer tends to emphasize PLC/DCS/SCADA systems. Automation Engineer may encompass a broader scope including robotics, vision, and MES integration [4].
Do Controls Engineers travel? Frequently, especially those working for system integrators or OEMs. Commissioning projects at customer sites may require weeks of on-site work [5].
What certifications help Controls Engineers? The PE license, Certified Automation Professional (CAP) from ISA, and vendor-specific certifications (Rockwell, Siemens) are recognized in the industry [3].
Citations:
[1] U.S. Bureau of Labor Statistics, "Electrical and Electronics Engineers," Occupational Outlook Handbook, https://www.bls.gov/ooh/architecture-and-engineering/electrical-and-electronics-engineers.htm
[2] Coursera, "What Is a Controls Engineer (+ How to Become One)," https://www.coursera.org/articles/controls-engineer
[3] Control Engineering, "Results Are In: Control Engineering Career and Salary Survey, 2024," https://www.controleng.com/results-are-in-control-engineering-career-and-salary-survey-2024/
[4] Coursera, "Controls Engineer Salary: How Much Can You Make?" https://www.coursera.org/articles/controls-engineer-salary
[5] PayScale, "Controls Engineer Salary in 2026," https://www.payscale.com/research/US/Job=Controls_Engineer/Salary
[6] U.S. Bureau of Labor Statistics, "Architecture and Engineering Occupations," https://www.bls.gov/ooh/architecture-and-engineering/
[7] U.S. Bureau of Labor Statistics, "Mechanical Engineers," https://www.bls.gov/ooh/architecture-and-engineering/mechanical-engineers.htm
[8] Zippia, "Controls Engineer Salary (January 2024)," https://www.zippia.com/controls-engineer-jobs/salary/