Senior Controls Systems Engineer

Reference: rob_1775744783

Job Title: Senior PLC / CODESYS Engineer
Industry: Robotics / Automation / Advanced Manufacturing
Location: Bellevue, WA or Washington, DC (Hybrid/Onsite)

We are hiring a Senior PLC / CODESYS Engineer to support the design, development, and deployment of control systems powering large-scale automation and robotics platforms. This role will focus on accelerating development velocity and improving system performance across existing and next-generation automation solutions.

This is a hands-on engineering role suited for someone who thrives in complex, real-world environments and can quickly contribute to both new development and ongoing system support.


What You'll Be Doing:

  • Build and enhance PLC applications using CODESYS for automated systems
  • Develop structured, scalable control logic for robotics, conveyance, and material handling systems
  • Interface with hardware components including sensors, actuators, motors, and safety systems
  • Collaborate with controls, electrical, and software teams to deliver fully integrated solutions
  • Troubleshoot issues across the stack-from PLC logic to system-level behavior
  • Support deployment, commissioning, and post-deployment system optimization
  • Contribute to improving development standards, code quality, and system reliability

Core Requirements:

  • Strong experience with CODESYS and IEC 61131-3 programming (Structured Text preferred)
  • Proven background in PLC-based controls engineering within automation or robotics environments
  • Hands-on experience with motion systems (drives, servos, kinematics)
  • Familiarity with industrial fieldbus and communication protocols (EtherCAT, Modbus TCP, CAN, OPC UA)
  • Ability to debug complex system interactions in real-time environments
  • Experience working in cross-functional engineering teams

Nice to Have:

  • Experience in high-throughput environments (e.g., warehouse automation, robotics fleets, manufacturing lines)
  • Exposure to HMI/SCADA systems and visualization tools
  • Understanding of safety PLCs and industrial safety standards
  • Familiarity with version control and modern development workflows
  • Background in embedded systems or Linux-based environments

Day-to-Day:

  • Develop and refine PLC logic to support new and existing automation features
  • Partner with engineers to integrate and validate system functionality
  • Diagnose and resolve issues during testing and live operations
  • Participate in system bring-up, testing cycles, and continuous improvement efforts
  • Maintain clear technical documentation and contribute to team knowledge sharing

Additional Notes:

  • High-impact role supporting critical automation initiatives
  • Opportunity to work on cutting-edge robotics and control systems at scale
  • Fast-paced environment with strong engineering ownership

GCS is acting as an Employment Business in relation to this vacancy.

$80.00 - $100.00
Per hour
USD80 - USD100 per hour

Washington

Contract

Added 09/04/2026
Reference: rob_1775744783

Senior Controls Systems Engineer

Washington
Contract

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