Job Description

About Atos
Atos is a global leader in digital transformation with c. 78,000 employees and annual revenue of c. EUR 10 billion. European number one in cybersecurity, cloud and high-performance computing, the Group provides tailored end-to-end solutions for all industries in 68 countries. A pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos is a SE (Societas Europaea) and listed on Euronext Paris.
The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.
Location : Mumbai
Total yoe : 5 + yrs
JD:-
We are seeking a highly skilled and experienced OT Security Operations Center (SOC) Analyst / Engineer with a strong background in Nozomi Networks and operational technology (OT) environments. The ideal candidate will have a minimum of 2 years of hands-on experience with OT IDS and Nozomi, combined with a solid understanding of ICS/SCADA systems, OT cybersecurity, and threat detection methodologies. This is a critical role aimed at enhancing visibility, threat detection, and incident response capabilities for a global client. Responsibilities

• Deploy, configure, maintain, and optimize Nozomi Networks platforms across multiple OT environments.

• Monitor and investigate alerts and anomalies across OT networks, providing detailed incident analysis and response actions.

• Correlate OT and IT security events to identify threats, vulnerabilities, and misconfigurations. o Develop and fine-tune detection use cases, signatures, and alerts within Nozomi and SIEM platforms.

• Coordinate with OT engineers, IT security teams, and third-party vendors for threat hunting and response efforts.

• Lead or support forensic investigations and root cause analysis in OT/ICS incidents.

• Ensure compliance with internal policies and industry standards such as IEC 62443, NIST CSF, and others.

• Provide detailed reports, dashboards, and threat intelligence insights to stakeholders. Requirement Essentials o Minimum 2 years direct hands-on experience with Nozomi Networks tools and services.

• Proven experience in OT/ICS cybersecurity, especially within critical infrastructure environment.

• Experience with virtualization platforms (VMware, Proxmox etc)

• Hands-on experiences with SIEM tools - configuring data sources, filtering, parsing

• Strong understanding of industrial protocols (Modbus, DNP3, IEC 104, OPC, etc.).

• Demonstrated experience with network traffic analysis, anomaly detection, and alert tuning in OT environments.

• Knowledge of SOC operations, SIEM tools, and incident response workflows.

• Excellent communication and documentation skills; ability to explain technical issues to non-technical stakeholders.

• Experience working with cross-functional teams in IT/OT converged environments. Nice to Have

• Certifications such as Nozomi Certified Engineer.

• Experience with other OT security platforms (Claroty, Dragos, SCADAfence, etc.).

• Basic knowledge about Linux, o Familiarity with SIEM tools such as Splunk, QRadar, or LogRhythm.

• Exposure to threat intelligence frameworks, MITRE ATT&CK for ICS, or threat hunting techniques in OT.

• Experience with firewalls, NAC, or asset management tools in industrial environments. Location : Mumbai / Bengaluru

Skills Required