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 setting 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 ATTCK.
- 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 thr

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