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

Securin delivers penetration testing, vulnerability management and offensive research for enterprises, critical infrastructure operators and public-sector clients. It is investing heavily in AI-augmented zero-day discovery and autonomous offensive testing.

Job Summary:

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 bypass

📌 Security Analyst (Chennai)
🏢 Securin
📍 Chennai