OT Cybersecurity Nozomi Consultant

Tata Consultancy Services Ltd

  • Cincinnati, OH
  • 22 days ago
  • $110,000–$130,000 Per Year

Highlights

Investigate Nozomi incidents and service requests using alerts, PCAPs, logs, platform diagnostics, and vendor guidance; coordinate escalations with site teams, SOC, network teams, and Nozomi product support. Experience integrating Nozomi with SIEM and enterprise platforms such as Splunk, CMDB, and ServiceNow, including ticket-driven incident, request, change, and problem workflows.

Numbers & Facts

LocationCincinnati, OH
Salary$110,000–$130,000 Per Year

Description

Role: Senior Engineer

Required Skills: Cyber Security

Qualification: BACHELOR OF COMPUTER SCIENCE

Experience: 8 - 15 Years

Function: TECHNOLOGY

Apply By: 2026-11-30

Must Have Technical/Functional Skills

  • Hands-on experience designing, deploying, configuring, and operating Nozomi Guardian sensors and Nozomi Central Management Console (CMC) in OT/ICS environments.
  • Experience reviewing site IT/OT architecture, network diagrams, VLANs, SPAN/RSPAN or TAP availability, sensor placement, connectivity, sizing, and firewall prerequisites.
  • Ability to produce site readiness checklists, low-level designs, bills of materials, implementation plans, test evidence, and handover-to-support documentation.
  • Experience creating virtual machines and virtual networking for Nozomi appliances and integrating sensors with the central management platform.
  • Working knowledge of passive OT asset discovery, communication-flow visibility, vulnerability identification, threat/anomaly detection, policy tuning, alert triage, and PCAP/log analysis.
  • Experience integrating Nozomi with SIEM and enterprise platforms such as Splunk, CMDB, and ServiceNow, including ticket-driven incident, request, change, and problem workflows.
  • Knowledge of industrial protocols, PLCs, RTUs, HMIs, SCADA systems, engineering workstations, OT DMZs, network segmentation, and operational-safety constraints.
  • Experience with platform health monitoring, patching, configuration management, backup/recovery coordination, capacity monitoring, audit evidence, and vendor escalation.
  • Working knowledge of IEC 62443, NIST SP 800-82, secure change management, and export-controlled or regulated delivery environments. Nozomi certification is preferred.
  • Good to have: Palo Alto or Check Point firewalls, Cisco Catalyst switching, Zscaler ZPA, CyberArk, RunZero, ServiceNow, Windows/Linux administration, and AWS/Azure fundamentals.

Roles & Responsibilities

  • Support Nozomi implementation across applicable Secure Connected Shop locations, covering planning, site discovery, readiness assessment, design, build, validation, stabilization, and handover to operations.
  • Validate as-is OT network documentation and develop the Nozomi low-level design, bill of materials, sensor-placement plan, connectivity requirements, and implementation runbook for each assigned site.
  • Create or coordinate the required VM and virtual networking, install and configure the Nozomi image, register the site and sensors in CMC, and validate secure connectivity.
  • Configure Guardian/CMC assets, zones, policies, user access, alerts, dashboards, and integrations in accordance with the approved reference architecture and site requirements.
  • Perform passive asset discovery and baseline validation; tune detection policies during learning and stabilization to improve asset accuracy and reduce false-positive alerts.
  • Integrate Nozomi alerts and asset data with Splunk SIEM, CMDB, and ServiceNow where applicable, and validate end-to-end alert and ticket flows.
  • Investigate Nozomi incidents and service requests using alerts, PCAPs, logs, platform diagnostics, and vendor guidance; coordinate escalations with site teams, SOC, network teams, and Nozomi product support.
  • Execute or coordinate approved configuration changes, patching, health checks, minor defect fixes, capacity monitoring, and availability monitoring under established change controls.
  • Maintain implementation evidence, asset and configuration records, test results, issue logs, risk and dependency tracking, and audit-support documentation.
  • Provide operational knowledge transfer, SOPs, troubleshooting guides, s tabilization support, and formal handover-to-support acceptance for each completed site.
  • Work within ITAR and customer security requirements, following approved access, data-handling, record-keeping, and onsite/remote delivery controls.

Generic Managerial Skills, If any

Strong communication, stakeholder coordination, technical documentation, problem-solving, and the ability to work independently with global OT, network, SOC, infrastructure, and site teams.

Salary Range: $110,000 - $130,000 per year

TCS Employee Benefits Summary:

Discretionary Annual Incentive.

Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans.

Family Support: Maternal & Parental Leaves.

Insurance Options: Auto & Home Insurance, Identity Theft Protection.

Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement.

Time Off: Vacation, Time Off, Sick Leave & Holidays.

Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.

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