Securin is an AI-native cybersecurity company. Our Preemptive Exposure Management Platform turns exposure data into clear decisions — giving organizations the confidence to know which risks are exploitable, what to fix first, and how to act before attackers do.

Duties and Responsibilities:

OT / ICS Penetration Testing:

• Plan and execute safety-first penetration tests of OT/ICS environments (water and wastewater, energy, manufacturing, building systems), including passive asset discovery, Purdue-model segmentation testing and IT-to-OT pivot analysis.
• Assess PLCs, RTUs, HMIs, SCADA servers, historians and engineering workstations across major vendors (e.g., Rockwell/Allen-Bradley, Siemens, Schneider Electric) and SCADA platforms (e.g., VTScada, Ignition, AVEVA/Wonderware).
• Test industrial protocols such as Modbus/TCP, DNP3, EtherNet/IP/CIP, S7comm, OPC UA, BACnet and IEC 60870-5-104/61850 for authentication, integrity and logic-manipulation weaknesses.




• Build and use lab or digital-twin replicas to validate attack paths before touching production; operate strictly within client-approved rules of engagement, change windows and safety constraints.
• Map findings to ISA/IEC 62443, NIST SP 800-82 and MITRE ATT&CK; for ICS, with remediation guidance that is realistic for plant operations.

Exploit Development & Zero-Day Discovery:

• Conduct vulnerability research on binaries, firmware, embedded/IoT devices, web applications and enterprise software using reverse engineering, source code review and fuzzing (coverage-guided, protocol-aware and grammar-based).
• Write reliable proof-of-concept and weaponized exploits for memory corruption (stack/heap overflows, use-after-free, type confusion), logic flaws and authentication bypasses, including bypass of contemporary mitigations (ASLR, DEP/NX, CFG, stack canaries).
• Perform n-day analysis and patch diffing to rapidly validate exploitability of newly disclosed CVEs for clients and for Securin’s exposure intelligence.
• Apply

📌 Security Analyst (Chennai)
🏢 Securin
📍 Chennai