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OT/ICS Cybersecurity Engineer - USA - Remote

Role overview

Qualifications

  • Hands-on or strongly demonstrable experience with OPC-UA, ISA-95 / Purdue Model, Industrial Cybersecurity (IEC 62443), MQTT / Sparkplug B, SCADA (Ignition / FactoryTalk / WinCC), Kepware / Ignition / Wonderware.
  • Hands-on experience in manufacturing, industrial, supply chain, operations technology, or enterprise transformation environments.
  • Ability to work with both business stakeholders and technical teams across OT and IT boundaries.
  • Strong documentation, troubleshooting, testing, communication, and delivery ownership.

Responsibilities

  • Assess OT/ICS environments, network segmentation, remote access, asset inventory, and plant-floor security gaps.
  • Apply IEC 62443, ISA-95, Purdue Model, and NIST-aligned controls to manufacturing environments.
  • Partner with plant engineering, IT security, controls, networking, and operations teams.
  • Review SCADA, PLC, historian, HMI, OPC-UA, and industrial protocol exposure risks.

About the company

BlockTXM Inc logo

BlockTXM Inc

IT Services & IT Consulting

At BlockTXM, we're transforming the IT consulting and business process services landscape by expertly matching talents with opportunities.As we continue to grow, we aim to create a global network of opportunities for both clients and talent, fostering connections that transcend borders and time zones.Our mission is to create an engaging and empowering talent experience that brings out the best in every individual. We believe in the power of remote work to transform lives, making the world more vibrant, one person at a time!Join us on this exciting journey as we continue to connect people with opportunities that allow their unique strengths and inner beauty to shine through. Remember, "You alone decide what color your night shall be." Embrace the future of work with BlockTXM – where every connection counts.

Company details

IndustryIT Services & IT Consulting
Company size11 - 50

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Job description

This is a remote position.

Manufacturing organizations need OT/ICS Cybersecurity Engineer talent for securing OT/ICS environments, improving industrial network resilience, and reducing plant-floor cyber risk. TalentXM should position this role as a practical revenue-generating bench profile for clients modernizing plants, operations, data, AI, OT/IT, and integration programs.

What the consultant will do

·       Assess OT/ICS environments, network segmentation, remote access, asset inventory, and plant-floor security gaps.

·       Apply IEC 62443, ISA-95, Purdue Model, and NIST-aligned controls to manufacturing environments.

·       Partner with plant engineering, IT security, controls, networking, and operations teams.

·       Review SCADA, PLC, historian, HMI, OPC-UA, and industrial protocol exposure risks.

·       Support secure architecture, risk remediation, incident response readiness, and audit documentation.

·       Communicate risk in business terms for plant leaders and executives.

Most in-demand skills to highlight

LinkedIn Recruiter skills to add while posting: OT Security; ICS Security; Industrial Control Systems; IEC 62443; OPC UA; SCADA; Purdue Model; ISA-95; MQTT; Network Segmentation.

Skill / Technology

Score

Demand Label

Category

OPC-UA

100

Very High Demand

OT/Integration

ISA-95 / Purdue Model

93

Very High Demand

OT/Architecture

Industrial Cybersecurity (IEC 62443)

93

Very High Demand

OT/Security

MQTT / Sparkplug B

91

Very High Demand

OT/Integration

SCADA (Ignition / FactoryTalk / WinCC)

84

High Demand

OT

Kepware / Ignition / Wonderware

84

High Demand

OT/Integration

PLC (Siemens TIA, Rockwell Studio 5000)

75

Core Demand

OT/Controls

OT Field Protocols (Modbus/Profibus/EtherNet-IP)

74

Core Demand

OT/Integration

Required qualifications

·       Hands-on or strongly demonstrable experience with: OPC-UA, ISA-95 / Purdue Model, Industrial Cybersecurity (IEC 62443), MQTT / Sparkplug B, SCADA (Ignition / FactoryTalk / WinCC), Kepware / Ignition / Wonderware.

·       Hands-on experience in manufacturing, industrial, supply chain, operations technology, or enterprise transformation environments.

·       Ability to work with both business stakeholders and technical teams across OT and IT boundaries.

·       Strong documentation, troubleshooting, testing, communication, and delivery ownership.

·       Experience supporting implementation, integration, support, rollout, upgrade, or production deployment projects.

·       Comfortable in remote, hybrid, and plant-facing delivery models depending on client needs.

Preferred qualifications

·       Familiarity with plant-floor constraints, industrial networks, safety, uptime, and change-control expectations.

·       Experience with regulated or quality-sensitive manufacturing such as automotive, aerospace, medical devices, food and beverage, packaging, chemicals, or electronics.

·       Experience working with global teams, offshore/nearshore delivery, and client-facing consulting environments.

·       Exposure to Agile, Jira, Azure DevOps, ServiceNow, SOP documentation, runbooks, and production support models.

Best-fit alternate titles

·       OT/ICS Cybersecurity Engineer

·       OT Security Engineer

·       ICS Security Consultant

·       Industrial Cybersecurity Engineer



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Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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