Ashish Kumar

Cybersecurity professional with hands-on experience securing OT/ICS environments using Nozomi Networks (CMC and Guardian) and Vectra AI (Brains and Sensors). Skilled in network traffic analysis, threat intelligence management, and PCAP analysis with Wireshark. Experienced in incident management via ServiceNow, Agile sprint delivery, and continuous optimization of security monitoring systems to strengthen threat detection and incident response.

OT Security Analyst at Capgemini India Pvt. Ltd. (2025-05 – Present)

Client: Emirates Global Aluminum (EGA)

• Managed Nozomi Networks CMC (Centralized Management Console) and configured the system for efficient network security monitoring and management.
• Performed Nozomi Networks upgrades, ensuring smooth integration of updates and threat intelligence feeds.
• Conducted alert analysis across multiple use cases, identifying threats and applying appropriate mitigation strategies.
• Managed and updated Nozomi Networks threat intelligence licenses to maintain up-to-date detection capabilities; used Wireshark to analyze PCAP files.
• Raised, tracked, and resolved incidents in ServiceNow (SNOW), ensuring effective incident management and stakeholder communication.
• Managed Vectra AI (Brains and Sensors), monitoring network behavior and detecting anomalies.

OT Security Analyst at Cognizant Technology Solutions (2021-01 – 2025-03)

• Gained hands-on experience with Nozomi Networks for OT/ICS network monitoring, asset discovery, alert analysis, and threat investigation.
• Monitored, analyzed, and investigated OT security alerts, including repeated unsuccessful login attempts, unauthorized program changes, program transfers, and anomalous asset behavior.
• Supported OT security processes including asset management, patch management, incident management, and change management activities.
• Performed Nozomi platform upgrades, system health checks, and quarterly security posture assessments to maintain platform reliability and operational effectiveness.
• Analyzed security events, validated alerts, conducted root cause analysis, and collaborated with stakeholders to drive timely remediation.
• Partnered with network, EPS, Wintel, and infrastructure teams to investigate security incidents, resolve operational issues, and identify underlying causes.
• Coordinated with stakeholders to gather incident updates, validate asset details, and monitor remediation progress.
• Supported vulnerability management activities, security assessments, and continuous improvement initiatives across OT environments.
• Applied working knowledge of cybersecurity frameworks including IEC 62443 and NIST, along with risk management principles and industrial security compliance requirements.
• Strong understanding of the Purdue Model and industrial control system environments, including SCADA, HMI, PLC, and DCS architectures.

Testing Analyst at Cognizant Technology Solutions (2020-07 – 2020-12)

• Performed end-to-end functional testing of web and enterprise applications to ensure business requirements were met and delivered high-quality software releases.
• Created comprehensive Test Plans, defining testing scope, objectives, strategy, test environments, resource allocation, and risk mitigation approaches.
• Designed and developed detailed Test Scenarios, Test Cases, and Test Data covering positive, negative, boundary, and integration testing conditions.
• Executed manual functional, system, integration, regression, smoke, and sanity testing across multiple application modules.
• Collaborated closely with Product Owners, Business Analysts, Developers, and Scrum teams in Agile environments to ensure requirement clarity and quality delivery.
• Participated in Agile ceremonies including Sprint Planning, Daily Standups, Sprint Reviews, Backlog Grooming, and Retrospectives.
• Created and maintained Requirement Traceability Matrix (RTM) to ensure complete test coverage against business requirements.

Bachelor of Technology – Siksha O Anusandhan University (2016 – 2020)