Ot Cybersecurity Nozomi Consultant

Tata Consultancy Services; Cincinnati (OH); On-site; USD 110,000 - 130,000; Full time

Benefits offered by this job

Discretionary Annual Incentive

Medical Coverage

401K Plan

Certification & Training Reimbursement

Vacation & Holidays

Job summary

Tata Consultancy Services Limited in Cincinnati, OH seeks a Senior Engineer to lead Nozomi Guardian and CMC deployments in OT/ICS environments, covering planning, design, and handover to operations.

You will validate site readiness, configure VM networks, integrate Nozomi with Splunk/ServiceNow, and ensure secure connectivity while complying with ITAR and customer security requirements.

Qualifications

• 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.
• Experience creating virtual machines and virtual networking for Nozomi appliances and integrating sensors with the central management platform.

Responsibilities

• Support Nozomi implementation across 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.

Skills

Cyber Security

Education

Bachelor's degree in Computer Science or related field

Tools

Nozomi Guardian

Nozomi CMC

Job description

Job Description

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.

Location

Cincinnati, OH

Function

TECHNOLOGY

Role

Senior Engineer

ID

434513

Skills

Cyber Security

Salary Range

$110,000 - $130,000

Desired Candidate Profile

Qualifications

BACHELOR OF COMPUTER SCIENCE