Illumio L3 Security Engineer

HCLTech is a global technology company, home to more than 227,000 people across 60 countries, delivering industry-leading capabilities centered around AI, digital, engineering, cloud and software, powered by a broad portfolio of technology services and products.

We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology & Services, Semiconductor, Telecom and Media, Retail and CPG, Mobility and Public Services. Consolidated revenues as of 12 months ending March 2026 totaled $14.7B

To learn how we can supercharge progress for you, visit hcltech.co m.

As an Illumio L3 Security Engineer, you will play a critical role in fortifying enterprise environments through advanced microsegmentation and network security strategies. This position is pivotal in designing, implementing, and supporting Illumio solutions, ensuring robust security architecture, and providing technical leadership for complex troubleshooting. Your expertise will directly impact the company’s ability to deliver secure, scalable, and innovative solutions to global clients.

Detailed Responsibilities

• Design, deploy, and manage Illumio microsegmentation solutions tailored to enterprise requirements.
• Develop, implement, and maintain security policies, labels, and rulesets to ensure compliance and protection.
• Perform comprehensive application dependency mapping and segment workloads efficiently.
• Troubleshoot complex Illumio-related issues, including connectivity and policy configurations at L3 escalation level.
• Conduct root cause analysis for incidents and support internal and external security audits.
• Collaborate cross-functionally with server, cloud, network, and application teams to deliver seamless security integration.
• Mentor and guide L1/L2 engineers, providing technical leadership and escalation support.
• Stay updated with industry trends and best practices to proactively improve security infrastructure.

Skill Requirements

• Minimum 6 years of experience in Cyber Security or Network Security roles.
• At least 3 years of hands-on experience with Illumio Core in enterprise environments.
• Strong expertise in microsegmentation and Zero Trust security frameworks.
• Proven experience with perimeter firewalls, including:
• Fortinet FortiGate
• Check Point
• Deep knowledge of TCP/IP, routing, switching, NAT, VPN, and advanced security troubleshooting.
• Proficiency in Windows and Linux operating systems.
• Relevant certifications such as:
• PCNSE / Fortinet FCP
• CCNP Security / CISSP

Other Requirements (Optional)

• Familiarity with Zscaler (ZIA/ZPA) solutions.
• Experience with cloud platforms (AWS, Azure, GCP).
• Exposure to SIEM platforms and security automation tools.
• Strong communication and collaboration skills.
• Life insurance
• Private medical care
• MultiSport Card
• Subsidy for glasses
• Subsidy to language courses
• Christmas and holiday bonuses
• Clear career path in a growing multinational organization