Senior OT ICS Penetration Tester and Red Team Specialist
Atos · Mumbai · onsite · Posted 69d ago
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About this role
Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements.
With more than 54,000 employees serving over 4,500 clients across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation, strengthen cybersecurity, and deliver secure digital workplace environments to support its clients, its employees and society. Atos also provides consulting and advisory services through its Atos Amplify brand.
A trusted partner in operating complex and mission-critical environments, Atos supports organizations across highly regulated and sovereign contexts.
About Atos Group
Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. 7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.
Function: Cybersecurity - OT/ICS Offensive Security
Location: Bengaluru or Mumbai | Hybrid, with travel to customer and industrial sites
Experience: 6-10 years
Role Overview
Seeking an experienced OT/ICS Penetration Tester to conduct security assessments, penetration testing, attack-path analysis, and adversary simulation across industrial and critical infrastructure environments. The role focuses on identifying vulnerabilities and attack paths across OT networks, SCADA/ICS systems, PLCs, HMIs, industrial DMZs, remote access infrastructure, and IT/OT environments.
- Perform OT/ICS security assessments across Purdue Levels 0-3.
- Assess SCADA, PLCs, HMIs, historians, engineering workstations, and OT network architecture.
- Evaluate IT/OT attack paths, segmentation, firewalls, remote access, and industrial DMZs.
- Conduct controlled red team and adversary simulation exercises.
- Assess privilege escalation, lateral movement, identity exposure, and credential security.
- Map findings to MITRE ATT&CK for ICS and Enterprise frameworks.
- Support purple team exercises and validate security controls.
- Develop test plans, risk assessments, rules of engagement, and rollback procedures.
- Coordinate testing with OT, engineering, safety, SOC, and stakeholder teams.
- Deliver technical and executive reports with remediation recommendations.
- OT Security / ICS Security
- Penetration Testing / Red Teaming
- SCADA, PLC, HMI, DCS
- Industrial Networks & Protocols
- Active Directory, Windows, Linux
- MITRE ATT&CK for ICS
- Purdue Model
- IEC 62443 / NIST 800-82
- Attack Path Analysis
- Vulnerability Assessment & Adversary Simulation
Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all.
Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment.
Choose your future. Choose Atos.
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About Atos
Atos
IT Services & Consulting
17.6k+
employees
2000
26 years old
Navi Mumbai, Maharashtra
India
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