Junior Controls System Designer

JOB-

October 19, 2026

Houston, TX

Contract-to-hire

Our client is a multi-faceted company providing full-service engineering services from start-up to completion phases, including conceptual front-end engineering, detailed engineering, procurement, construction management, and commissioning and start-up phases on small to mid-size projects.

Our client is seeking a Senior Civil/Structural Engineer to perform civil and structural engineering design while managing and guiding a team of designers and engineers. The role collaborates with project managers, other disciplines, designers, and clients to deliver high-quality and cost-effective engineering solutions.

• Develop and maintain instrument indexes and DCS/PLC I/O lists from P&IDs
• Draft instrument loop diagrams, wiring and termination drawings, and junction box and marshalling cabinet layouts
• Prepare control system architecture and network drawings for DCS, PLC, SIS, and historian systems
• Apply hazardous area classification (Class I Div 1/2, Zones) to device selection and installation details
• Participate in HAZOP/LOPA sessions as scribe or note-taker and track resulting control actions
• Review vendor and integrator submittals; support FAT/SAT, loop checks and commissioning
• Perform field walkdowns and as-built surveys of existing instrumentation in operating units
• Manage drawing revisions, redlines, and MOC documentation to client and company standards

• 4-10 years in instrumentation, controls or design drafting (co-ops and internships count)
• Experience with an EPC, system integrator, DCS vendor, or operating chemical plant.

• Instrumentation:
  Flow, level, pressure, temperature, and analyzer measurement; control valves and actuators.
• Control Basics: PID, cascade, ratio, and feed forward control; interlocks and permissives.
• Systems & Protocols: DCS, PLC, SIS, HART, FOUNDATION Fieldbus, Modbus, and Ether Net/IP.

• AutoCAD and Bluebeam for drawings and markups.
• Microsoft Excel for indexes, I/O lists, and cause-and-effect matrices.
• Exposure to DCS/SIS platforms such as Emerson DeltaV, Honeywell Experion, Yokogawa CENTUM, Rockwell, Siemens, or Triconex is a plus.

• High School Degree or Higher

• Site Access:
  Valid driver’s license; ability to pass a drug screen and obtain a TWIC card and required site safety orientations
• Preferred:
  Existing TWIC card and basic plant safety training (e.g., OSHA 10)

GAS Energy Staffing LLC is an Equal Opportunity Employer. Employment Decision are made without regard to race, color, religion, sex, sexual orientation, age, national origin, disability, protected veteran status, gender identity or any other factors protected by applicable federal, state or local laws.