CAD/Visio Designer

Summary

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. The ideal candidate brings deep experience in municipal water/wastewater facility design, is proficient in AutoCAD and Microsoft Visio, and has hands-on exposure to SCADA and HMI system documentation.

AutoCAD Design & Drafting

• 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.

Visio Diagramming — SCADA & Network Architecture

• 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.

SCADA / HMI Documentation Support

• Collaborate with SCADA engineers to develop and maintain SCADA design documentation including I/O lists, tag databases, alarm philosophies, and control narratives.
• Support FAT (Factory Acceptance Testing) and SAT (Site Acceptance Testing) by preparing test drawing packages and red-line markups.
• Assist in the development of operator training materials and O&M manual graphics.
• Ensure all SCADA-related drawings and diagrams are version-controlled and archived in the project document management system (e.g., Aconex, SharePoint, or NYC DEP EDMS).

Required Qualifications

Education

• Associate's or Bachelor's degree in Engineering Technology, Drafting & Design Technology, Electrical/Mechanical Engineering, or a closely related discipline.
• Equivalent combination of formal training and directly relevant professional

Exeperience

Minimum 7 years of professional CAD drafting and technical diagramming experience, with at least 4 years on municipal water or wastewater infrastructure projects.

• Demonstrated experience producing SCADA-related drawings including P&IDs, loop drawings, network architecture, and HMI layouts.
• Prior experience working on NYC DEP, NYC Department of Design and Construction (DDC), or comparable large municipal agency projects is strongly preferred.
• Experience in a contractor/consultant capacity delivering under city or state agency contract requirements.4.3 Technical Skills — Required
• AutoCAD (2018 or later): Expert-level proficiency in 2D drafting; experience with xrefs, blocks, layers, plot styles, and sheet set management.
• Microsoft Visio (2016 or later): Advanced proficiency in network, process, and engineering diagram creation; custom stencil development.
• SCADA / HMI Familiarity: Solid understanding of SCADA system architecture, PLC/RTU concepts, HMI design principles, and industrial communication protocols.
• P&ID Development: Proficiency in developing and interpreting P&IDs per ISA 5.1 standards.
• Document Management: Experience with document control processes, drawing revision management, and electronic document management systems.
• Microsoft Office Suite: Proficient in Excel (for schedules and I/O lists), Word, and Teams for project collaboration.

Technical Skills — Preferred

• MicroStation or Bentley OpenPlant for agencies using Bentley-based platforms.
• Familiarity with Ignition (Inductive Automation), iFIX, Wonderware, or other common SCADA/HMI platforms used in water/wastewater.
• Experience with GIS integration or GIS-based drawing overlays.
• Knowledge of NIST SP 800-82, IEC 62443, or NYC DEP cybersecurity standards for OT systems.
• Familiarity with BIM/Revit coordination workflows for integration with mechanical and civil design teams.

Deliverables & Performance Expectations

The Senior CAD / Visio Designer will be evaluated on the quality, accuracy, and timeliness of the following key deliverables:

2. Role Summary

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. The ideal candidate brings deep experience in municipal water/wastewater facility design, is proficient in AutoCAD and Microsoft Visio, and has hands-on exposure to SCADA and HMI system documentation.

3. Key Responsibilities

3.1 AutoCAD Design & Drafting

• 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.

3.2 Visio Diagramming — SCADA & Network Architecture

• 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.

3.3 SCADA / HMI Documentation Support

• Collaborate with SCADA engineers to develop and maintain SCADA design documentation including I/O lists, tag databases, alarm philosophies, and control narratives.
• Support FAT (Factory Acceptance Testing) and SAT (Site Acceptance Testing) by preparing test drawing packages and red-line markups.
• Assist in the development of operator training materials and O&M manual graphics.
• Ensure all SCADA-related drawings and diagrams are version-controlled and archived in the project document management system (e.g., Aconex, SharePoint, or NYC DEP EDMS).

4. Required Qualifications

4.1 Education

• Associate's or Bachelor's degree in Engineering Technology, Drafting & Design Technology, Electrical/Mechanical Engineering, or a closely related discipline.
• Equivalent combination of formal training and directly relevant professional experience will be considered.

4.2 Experience

• Minimum 7 years of professional CAD drafting and technical diagramming experience, with at least 4 years on municipal water or wastewater infrastructure projects.
• Demonstrated experience producing SCADA-related drawings including P&IDs, loop drawings, network architecture, and HMI layouts.
• Prior experience working on NYC DEP, NYC Department of Design and Construction (DDC), or comparable large municipal agency projects is strongly preferred.
• Experience in a contractor/consultant capacity delivering under city or state agency contract requirements.

4.3 Technical Skills — Required

• AutoCAD (2018 or later): Expert-level proficiency in 2D drafting; experience with xrefs, blocks, layers, plot styles, and sheet set management.
• Microsoft Visio (2016 or later): Advanced proficiency in network, process, and engineering diagram creation; custom stencil development.
• SCADA / HMI Familiarity: Solid understanding of SCADA system architecture, PLC/RTU concepts, HMI design principles, and industrial communication protocols.
• P&ID Development: Proficiency in developing and interpreting P&IDs per ISA 5.1 standards.
• Document Management: Experience with document control processes, drawing revision management, and electronic document management systems.
• Microsoft Office Suite: Proficient in Excel (for schedules and I/O lists), Word, and Teams for project collaboration.

4.4 Technical Skills — Preferred

• MicroStation or Bentley OpenPlant for agencies using Bentley-based platforms.
• Familiarity with Ignition (Inductive Automation), iFIX, Wonderware, or other common SCADA/HMI platforms used in water/wastewater.
• Experience with GIS integration or GIS-based drawing overlays.
• Knowledge of NIST SP 800-82, IEC 62443, or NYC DEP cybersecurity standards for OT systems.
• Familiarity with BIM/Revit coordination workflows for integration with mechanical and civil design teams.

5. Soft Skills & Professional Competencies

• Strong attention to detail and commitment to drawing accuracy, revision discipline, and documentation quality.
• Ability to manage multiple concurrent drawing deliverables under tight program milestones.
• Effective communicator able to collaborate with multidisciplinary engineering teams, agency staff, and construction personnel.
• Self-directed and proactive — capable of identifying drawing gaps and resolving discrepancies without constant supervision.
• Comfortable in a fast-paced design-build or design-bid-build environment with evolving project scope.
• Demonstrated ability to apply quality control review practices to own and peer deliverables.

6. Working Conditions

• Primary work location: North River WPCP, Manhattan, NY. On-site presence required during design, construction, and commissioning phases.
• Occasional travel to contractor offices, equipment vendors, or other NYC DEP facilities may be required.
• Must be able to work in an active wastewater treatment facility environment including exposure to industrial noise, odors, and varying weather conditions during site visits.
• Standard working hours with potential for extended hours during critical project milestones (FAT, SAT, startup).
• Must comply with all NYC DEP site safety, environmental, and security requirements including site-specific PPE protocols.

7. Deliverables & Performance Expectations

The Senior CAD / Visio Designer will be evaluated on the quality, accuracy, and timeliness of the following key deliverables:

Deliverable

Standard / Expectation

Updated P&IDs

ISA 5.1 compliant; reviewed and approved within project milestone dates

SCADA Network Diagrams (Visio)

Accurate, version-controlled; updated with each design revision

Instrument Loop Drawings

Complete I/O documentation per instrument list; cross-referenced to P&IDs

HMI Screen Layout Wireframes

Reviewed and signed off by SCADA Engineer and Client prior to build

As-Built Drawing Set

100% complete and submitted within 60 days of commissioning acceptance

Drawing Register

Maintained and current at all times; accessible via project EDMS

Application Requirements

Candidates must submit the following as part of a complete application package:

• Current resume highlighting SCADA, AutoCAD, and Visio experience with specific project references.
• Portfolio or work samples demonstrating P&IDs, SCADA network diagrams, or HMI layout drawings (sanitized as appropriate for confidentiality).
• At least three professional references, including at least one from a municipal infrastructure project.
• Confirmation of eligibility to obtain NYC DEP site access credentials.

Pay: $60.00 - $75.00 per hour

Work Location: Hybrid remote in New York, NY 10031

Salary : $60 - $75