CAD/Visio Design Engineer

Executive Decision LLC • New York, NY

5d • Hybrid

About The Position

Join Executive Decision LLC as a CAD/Visio Design Engineer, where you'll play a crucial role in transforming innovative ideas into detailed designs. Located in the heart of Brooklyn, NY, we are excited to welcome a creative problem-solver to our dynamic team. The Senior CAD / Visio Designer will work closely with the SCADA Engineers, Instrumentation & Controls (I&C) Engineers, Process Engineers, and Project Management team to develop and maintain all CAD and Visio deliverables for the North River WWTP SCADA Modernization project.

Requirements

• Bachelor's degree in Mechanical Engineering or related field.
• Proven experience in CAD design, preferably in a similar industry.
• Proficiency in CAD software such as AutoCAD, SolidWorks, or similar.
• Strong attention to detail and excellent problem-solving skills.
• Ability to work collaboratively in a team-oriented environment.
• Excellent communication skills, both verbal and written.
• Familiarity with industry standards and regulations.
• Positive attitude and eagerness to learn and grow.

Responsibilities

• Develop and maintain P&IDs (Piping & Instrumentation Diagrams) in accordance with ISA 5.1 standards for all SCADA-integrated process areas including primary, secondary, and tertiary treatment.
• Produce electrical one-line diagrams, panel layouts, and conduit/cable routing drawings for SCADA panels, field instrumentation, and communication infrastructure.
• Create and update instrument loop drawings, junction box schedules, and field device location plans.
• Draft control room layout drawings, operator workstation configurations, and server room/network room equipment arrangements.
• Manage and maintain the drawing register and CAD standards in compliance with NYC DEP BWT documentation requirements.
• Perform drawing markups, revision control, and as-built updates throughout construction and commissioning phases.
• Coordinate with civil/structural, mechanical, and electrical engineering teams to integrate CAD deliverables into overall project drawing sets.
• Develop detailed SCADA network architecture diagrams including OT/IT network topology, firewall zones, DMZ layouts, and communication pathways using Microsoft Visio.
• Create HMI screen layout wireframes and navigation flow diagrams to support SCADA system design and client review sessions.
• Produce functional block diagrams for PLC/RTU I/O, control loops, and inter-system communications (OPC-UA, DNP3, Modbus, Ethernet/IP).
• Develop system integration diagrams showing interfaces between SCADA, historian, MES, asset management, and laboratory information systems.
• Maintain and update Visio deliverables through all project phases from Preliminary Design through Commissioning and Closeout.
• Support cybersecurity assessments by producing network segmentation and zone/conduit diagrams aligned with IEC 62443 or NIST SP 800-82 frameworks.
• Create and modify detailed CAD drawings for various projects.
• Collaborate with engineers and project managers to ensure design accuracy.
• Conduct design reviews and implement necessary changes.
• Utilize advanced CAD software to produce high-quality designs.
• Maintain project documentation and design specifications.
• Assist in troubleshooting design issues and propose solutions.
• Stay updated on industry trends and best practices in CAD design.
• Participate in team meetings to discuss project progress and challenges.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior