CAD Designer

Benefits: Part Time Competitive salary Flexible schedule Location: Galveston, TX Industry: Refining / Petrochemical / Terminal Operations Employment Type: Contract / Part-Time Experience Level: Mid-Level Preferred Position Summary On Grid Infrastructure Services is seeking a detail-oriented and experienced CAD Designer to support engineering and operations projects within the refining, petrochemical, and terminal operations industries, with a preference for candidates experienced in crude distillation units (CDUs) and associated process systems. This part-time role will support drafting, design updates, as-built documentation, and project deliverables for brownfield facility modifications and operational improvement projects. The ideal candidate will have hands‑on experience working with refinery or terminal facility drawings, including P&IDs, plot plans, equipment layouts, piping isometrics, and electrical/instrumentation drawings. Key Responsibilities Develop, revise, and maintain CAD drawings for refinery, petrochemical, and terminal facilities Update and manage: Piping & Instrumentation Diagrams (P&IDs) General arrangement drawings Equipment layouts Plot plans Isometric drawings Structural and support drawings Incorporate field redlines and produce accurate as-built documentation Coordinate with engineers, operations personnel, maintenance teams, and contractors Support Management of Change (MOC) documentation updates Assist with design packages for small capital and maintenance projects Ensure drawings comply with company drafting standards and applicable industry codes Participate in occasional field walk-downs in operating industrial facilities Required Qualifications 3+ years of CAD drafting/design experience in: Refining Petrochemical Midstream terminal operations Industrial process facilities Proficiency with AutoCAD required Strong understanding of refinery/process facility documentation and terminology Experience interpreting P&IDs and piping layouts Familiarity with crude distillation units and related systems preferred Ability to work independently with minimal supervision Strong attention to detail and organizational skills Preferred Qualifications Experience with AutoCAD Plant 3D or CADWorx Knowledge of API, ASME, and OSHA standards applicable to refining facilities Prior experience supporting brownfield or operating facilities Field verification and walk-down experience TWIC card or ability to obtain one preferred Work Schedule & Environment Part-time schedule with flexible hours based on project workload Onsite work is required Candidates local to the Galveston/Houston Gulf Coast region strongly preferred Compensation Compensation will be based on experience, qualifications, and availability. #J-18808-Ljbffr