OT Cybersecurity Architect - Water Utilities

Amyx, Inc.; Washington (District of Columbia); On-site; USD 170,000 - 250,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

HSA options

401(k) with matching

FSA

Life Insurance

Disability insurance

Wellness program

PTO

Holidays

Professional development

Job summary

Amyx, Inc. seeks a Cyber Security SME with deep OT security expertise to lead cybersecurity strategy, architecture, and risk management for water utility ICS/SCADA environments. You will drive security architectures, risk assessments, and incident response aligned with NIST/ISA guidelines.

You will collaborate with operators, engineers, and EPA program leads, communicating complex OT cyber posture to executives while maintaining compliance and resilience across critical infrastructure networks.

Qualifications

• 10+ years in cybersecurity.
• 8+ years in OT/ICS security for water utilities or critical infrastructure.
• Hands-on experience with SCADA platforms (Wonderware, Ignition, OSIsoft PI).
• OT protocols (Modbus, DNP3, OPC-UA).
• Passive monitoring tools (Nozomi, Claroty, Dragos).
• Strong knowledge of NIST SP 800-82, ISA/IEC 62443, RMF.
• U.S. Citizenship; Public Trust eligibility.
• Certifications: GICSP, CISSP, GRID, ISA/IEC 62443.

Responsibilities

• Develop and implement security architectures for water utility OT environments (SCADA, PLCs, RTUs, HMIs).
• Design segmentation strategies (Purdue Model, DMZ, secure remote access).
• Integrate OT telemetry into enterprise SOC/SIEM for threat detection.
• Conduct OT risk assessments for water/wastewater systems.
• Align with NIST SP 800-82, ISA/IEC 62443, and EPA cybersecurity guidance.
• Prepare and maintain SSPs, POA&Ms, and RMF documentation.
• Develop OT-specific incident response playbooks and tabletop exercises.
• Support forensic analysis and recovery planning for cyber-physical systems.
• Collaborate with water utility operators, engineers, and EPA program leads.
• Deliver executive briefings and technical reports on OT cyber posture.

Skills

OT/ICS security

Water utilities

SCADA security

Risk management

GICSP

CISSP

GRID

ISA/IEC 62443

Public Trust eligibility

Education

Bachelor’s in Cybersecurity

Bachelor’s in Engineering

Tools

Wonderware

Ignition

OSIsoft PI

Modbus

DNP3

OPC-UA

Nozomi

Claroty

Dragos

Job description

Amyx, Inc. seeks a Cyber Security SME with deep OT security expertise to lead cybersecurity strategy, architecture, and risk management for water utility ICS/SCADA environments. You will drive security architectures, risk assessments, and incident response aligned with NIST/ISA guidelines.

You will collaborate with operators, engineers, and EPA program leads, communicating complex OT cyber posture to executives while maintaining compliance and resilience across critical infrastructure networks.