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Controls Engineer Career Guide

What controls engineers do, what they earn in 2026, the skills that matter, and how it compares to electrical and automation engineering roles.

Day in the life

What a controls engineer actually does

Controls engineering is fundamentally about making machines work correctly and safely. On a typical project, a controls engineer writes the functional specification (what the machine must do), designs the electrical control panel (what hardware it needs and how it is wired), writes the PLC program (what logic drives it), develops the HMI (how operators interact with it), and then commissions the complete system at the customer site.

In-house controls engineers at manufacturers focus more on modifications and upgrades to existing equipment, writing small programs for new features, troubleshooting field failures, and maintaining electrical documentation. Controls engineers at system integrators focus more on new-build projects: designing from a blank sheet, commissioning at customer sites, and handling the customer relationship.

Safety system design is a distinguishing feature of many controls engineer roles — specifying safety-rated components (E-stops, light curtains, safety PLCs), performing SIL assessments against IEC 62061 / EN 13849, and writing LOTO procedures. This safety depth separates the controls engineer title from a general automation technician.

Controls engineer salary 2026

Salary ranges by region

RegionEntry (0–2 yrs)Mid (3–7 yrs)Senior (8+ yrs)
United States$65k–$85k$90k–$120k$120k–$160k
United Kingdom£38k–£50k£50k–£70k£70k–£95k
Germany / DACH€45k–€60k€62k–€85k€85k–€110k
AustraliaAUD $75k–$95kAUD $95k–$130kAUD $130k–$165k
South AfricaR340k–R500kR500k–R780kR780k–R1.2M
CanadaCAD $62k–$82kCAD $85k–$115kCAD $115k–$155k

Skills checklist

Controls engineer skills mapped to our training

PLC programming depth

  • Ladder logic, FBD, structured text
  • Safety PLC programming (GuardLogix, F-CPU)
  • Program organisation and modular design
  • Allen-Bradley and Siemens both
  • Program version control and backup
Practice in the simulator

Electrical design

  • Control panel schematic drawing (EPLAN, AutoCAD Electrical)
  • MCC and VFD circuit design
  • Panel wiring and termination practices
  • Earthing / grounding strategies
  • CE / UL marking panel requirements
Wiring tutor

Safety systems

  • IEC 62061 / EN 13849 risk assessment basics
  • SIL determination and verification
  • Safety relay and safety PLC configuration
  • E-stop and light curtain category wiring
  • LOTO procedure writing
Full PLC course

Documentation and process

  • P&ID reading and mark-up
  • Functional design specification (FDS) writing
  • FAT / SAT protocol writing and execution
  • As-built documentation
  • Management of change procedures
Scenario practice

How to get there

Path to controls engineer

  1. 1

    Engineering degree or strong technician background

    Electrical, mechatronics, or controls engineering degree is the standard. Experienced PLC technicians (5+ years, strong commissioning background) do move into engineer-titled roles, especially at SIs. If you are starting from a trade, the PLC Technician → Senior Technician → Controls Engineer path takes 6–10 years but is well documented.

  2. 2

    Master PLC programming on at least one platform

    You need to be able to write a complete PLC program from a functional specification without help. Practice with our free browser simulator — it runs real ladder logic, timers, counters, and analog processing. The 40+ graded scenarios build the portfolio evidence you need for interviews.

  3. 3

    Add electrical design capability

    Learn to read and ideally draw control schematics (EPLAN, AutoCAD Electrical, or even hand-drawn for small projects). This is what separates a programmer from a controls engineer in most job descriptions.

  4. 4

    Get a functional safety credential

    The ISA CCST Level 2 or TÜV Functional Safety Engineer certification is the clearest credential signal for controls engineer roles. It demonstrates the safety-system depth the title implies.

Interview prep

Controls engineer interview questions

Controls engineer interviews run deeper technically than technician interviews. Expect questions on program architecture (why would you split logic into separate routines), safety system design (how do you determine the required SIL for a safety function), electrical choices (when would you use a safety relay vs a safety PLC), and commissioning judgment (what do you check before closing a control panel and energising for the first time).

Related roles

Adjacent careers

Questions

Controls Engineer FAQ

A controls engineer designs and implements the electrical control systems that make industrial machines operate correctly. This includes specifying and wiring control panels, writing PLC programs, developing HMI screens, designing safety interlocks, commissioning equipment at the site, and writing documentation (electrical schematics, functional specifications, FAT/SAT protocols). They are accountable for the control system working correctly and safely.

Build controls engineering skills in your browser.

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