Controls Automation Engineer

GCS Recruitment; San Diego (CA); Hybrid; USD 110,000 - 160,000; Full time

Benefits offered by this job

Hybrid work

Travel opportunities

Job summary

GCS Recruitment seeks a seasoned CODESYS developer to design and implement control software for Linux-based industrial PCs. You will build modular abstractions for motors, drives, sensors, and I/O, and create reusable components for conveyors and sortation systems.

The role includes lab-based integration in Bellevue, WA, maturing software from prototype to production, and producing runbooks and handoff materials for deployment teams. Hybrid work with travel is expected.

Qualifications

• 5+ years hands-on CODESYS development experience.
• Proficient in IEC 61131-3 Structured Text and Function Block programming.
• Experience with modular, layered PLC/controls architectures.
• Background in industrial automation (material handling, conveyance, sortation, manufacturing).
• Hands-on integration of motors, drives, sensors, actuators, and I/O.
• Fieldbus experience: EtherCAT (primary), EtherNet/IP, Profinet.
• Familiarity with Linux-based industrial PCs.
• Software development discipline: Git, version control, code reviews, structured testing.

Responsibilities

• Develop CODESYS-based control logic on Linux industrial PCs.
• Build standardized device abstraction layers for motors, drives, sensors, actuators, and I/O.
• Assemble reusable control components for conveyors, merges, diverts, and sortation systems.
• Perform lab-based hardware integration and controls validation in Bellevue, WA.
• Mature software from prototype to production release.
• Create technical documentation, runbooks, and handoff materials.
• Provide engineering support for first 1–2 deployments, then transition to deployment teams.

Skills

CODESYS

Structured Text

Function Block

Industrial automation

EtherCAT

EtherNet/IP

Profinet

Linux PCs

Git

Version control

Code reviews

Testing

Tools

Git

Version control

Job description

Role Overview

• Develop CODESYS-based machine control logic on Linux industrial PCs


• Build standardized device abstraction layers for motors, drives, sensors, actuators, and I/O


• Assemble reusable control components for conveyors, merges, diverts, and sortation systems


• Perform lab-based hardware integration and controls validation in the Bellevue, WA lab


• Mature software from prototype through production release


• Create technical documentation, runbooks, and handoff materials


• Provide engineering support for the first 1-2 deployments, then transition to deployment teams

Required Skills & Experience

• 5+ years of hands-on CODESYS development (mandatory)


• Strong IEC 61131-3 Structured Text and Function Block programming


• Experience with modular, layered PLC/controls architectures


• Background in industrial automation (material handling, conveyance, sortation, manufacturing)


• Hands-on integration of motors, drives, sensors, actuators, and I/O


• Fieldbus experience: EtherCAT (primary), EtherNet/IP, Profinet


• Familiarity with Linux-based industrial PCs


• Software development discipline: Git, version control, code reviews, structured testing

Important:

TwinCAT / Beckhoff-only experience will not be considered. This role requires direct CODESYS expertise.

Work Model & Travel Expectations

• Hybrid work preferred for candidates based in the Seattle/Bellevue area, with regular lab presence


• Remote US-based candidates are accepted due to CODESYS skill scarcity


• Periodic travel is required for lab-based integration testing and early deployments


• Onsite support is required for the first 1-2 deployments of each new control area


• Travel is planned in advance and fully covered

This role is well-suited for engineers who enjoy building product-quality controls software, working within a defined architecture, and contributing to a platform deployed at global scale.