Company Profile

Lennox (NYSE: LII) Driven by 130 years of legacy, HVAC and refrigeration success, Lennox provides our residential and commercial customers with industry-leading climate-control solutions. At Lennox, we win as a team, aiming for excellence and delivering innovative, sustainable products and services. Our culture guides us and creates a workplace where all employees feel heard and welcomed. Lennox is a global community that values each team member’s contributions and offers a supportive workplace for career development. Come, stay, and grow with us.

Job Description

Cyber Defense Strategy & Architecture

Define and maintain enterprise Blue Team security architecture roadmap.
Design scalable cyber defense capabilities across cloud, endpoint, identity, network, applications, OT, and SaaS environments.
Lead security architecture decisions for SIEM, SOAR, XDR, UEBA, TIP, DSPM, and AI Security platforms.
Establish security engineering standards, reference architectures, and defense patterns.

SIEM Engineering & Detection Strategy

Own enterprise SIEM architecture,



use case lifecycle, content governance, and platform optimization.
Develop risk-based detection frameworks aligned to MITRE ATT&CK.;
Drive Detection-as-Code practices with CI/CD integration.
Improve detection fidelity through behavioral analytics, threat intelligence, and AI-powered analytics.
Establish threat-based detection coverage metrics.

SOAR & Autonomous Security Operations

Lead SOAR architecture and orchestration strategy.
Design automated response playbooks for high-volume attack scenarios.
Implement machine-speed containment actions such as:
Endpoint isolation
Account suspension
Token revocation
Network containment
Email quarantine
IOC blocking
Reduce analyst workload through AI-assisted investigation and autonomous workflows.
AI Security Defense

Design controls to detect and defend against:
Prompt injection attacks
LLM abuse
AI model poisoning
Data leakage through AI platforms
Aut

📌 Principal Architect (Chennai)
🏢 Lennox India Technology Centre
📍 Chennai