SR INFO SECURITY CONSULTANT I-INDIA

Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high‑performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities.
At Lumen, you’ll work on infrastructure customers rely on today and build for what’s next, where performance, security, and resilience matter.
This is a high accountability environment where bold ideas drive real innovation for our customers, partners, and industry. The work is challenging, expectations are clear, and trust is built into how we operate. If you’re ready to take ownership, deliver meaningful impact, and help shape the future of AI‑ready connectivity, join us today.
The Role
The Senior Information Security Engineer owns, administers, and continuously improves core enterprise security platforms. This P4-I role requires senior-level independent judgment, deeper technical ownership, and strong delivery accountability, with expectations to lead complex platform activities, improve operational maturity, and provide senior-level support across email security, web security, network security, endpoint detection and response (EDR), data loss prevention (DLP), vulnerability management, and security automation.
The role is suited for an ownership-driven engineer who can operate independently, mentor junior engineers, partner with SOC and infrastructure teams, and help maintain a resilient enterprise security posture.
The Main Responsibilities
Security Platform Ownership: Own administration, health, configuration, lifecycle support, upgrades, tuning, and operational readiness for assigned security platforms.
Email & Web Security: Administer and optimize secure email gateways, web filtering, and web reputation controls to reduce phishing, spam, malware, and risky web access exposure.
Network & Endpoint Security: Maintain network security controls and EDR/XDR coverage across Windows and Linux environments, including agent health, policy tuning, troubleshooting, and escalations.
Data Loss Prevention (DLP): Lead DLP policy validation, tuning, exception review support, and control effectiveness checks to protect confidential corporate and customer data.
Vulnerability Management: Perform scanning, analyze results using tools such as Tenable, Cortex, Qualys, or similar platforms, and provide prioritized remediation guidance.
Security Automation & Scripting: Develop and maintain automation using Python, PowerShell, Bash, APIs, or SOAR workflows to reduce manual effort and improve repeatability.
Incident Investigation & Escalation: Provide senior technical support for alert triage, telemetry validation, containment scoping, and investigation across host, network, proxy, firewall, email, and cloud security layers.
Governance & Documentation: Maintain operating procedures, engineering standards, implementation plans, knowledge articles, and runbooks aligned to change management expectations.
Mentorship & Collaboration: Guide junior engineers, review technical outputs, share platform knowledge, and collaborate with SOC, infrastructure, endpoint, network, application, and vendor teams.
What We Look For In a Candidate
7-14 years of hands-on experience in Security operations, Information security, SOC, Security engineering, or a closely related technical function.
Strong working knowledge of TCP/IP, routing, switching, firewalls, proxies, IDS/IPS, DNS, VPN, and segmentation concepts.
Practical experience in at least three domains: email security, network security, EDR/XDR or endpoint protection, DLP, vulnerability management, web security, SIEM/SOC tooling, or security automation.
Ability to independently troubleshoot complex security platform issues, perform root-cause analysis, and coordinate remediation across technical teams.
Hands-on experience with enterprise EDR/XDR or endpoint protection platforms such as CrowdStrike Falcon, Microsoft Defender, Cortex XDR, or similar tools.
Experience with vulnerability platforms such as Tenable.io/sc, Qualys, Rapid7, Cortex, or similar tools, including scan interpretation and remediation guidance.
Intermediate scripting or automation capability using Python, PowerShell, Bash, REST APIs, or comparable automation methods.
Ability to interpret and correlate logs from endpoints, proxies, firewalls, mail gateways, DLP tools, vulnerability platforms, and other enterprise security technologies.
Strong communication skills with the ability to explain technical risks, dependencies, and recommended actions to technical and non-technical stakeholders.
High ownership mindset with the ability to manage priorities, escalations, change control, and outcomes with limited supervision.
Preferred Qualifications / Certifications
Microsoft SC-200, CompTIA Security+, CEH, CISSP, CySA+, or equivalent security operations certification.
Vendor certifications from Palo Alto, CrowdStrike, Fortinet, Cisco, Microsoft, Tenable, Qualys, or equivalent enterprise security platforms.
Requisition #: 343796
Equal Employment Opportunities
We are committed to providing equal employment opportunities to all persons regardless of race, color, ancestry, citizenship, national origin, religion, veteran status, disability, genetic characteristic or information, age, gender, sexual orientation, gender identity, gender expression, marital status, family status, pregnancy, or other legally protected status (collectively, “protected statuses”). We do not tolerate unlawful discrimination in any employment decisions, including recruiting, hiring, compensation, promotion, benefits, discipline, termination, job assignments or training.
Privacy Notice
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To review Lumen’s Global Employment Applicant and Talent Community Privacy Notice, please visit:
https://jobs.lumen.com/global/en/privacy-notice
Disclaimer
The job responsibilities described above indicate the general nature and level of work performed by employees within this classification. It is not intended to include a comprehensive inventory of all duties and responsibilities for this job. Job duties and responsibilities are subject to change based on evolving business needs and conditions.
In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
Please be advised that Lumen does not require any form of payment from job applicants during the recruitment process. All legitimate job openings will be posted on our official website or communicated through official company email addresses. If you encounter any job offers that request payment in exchange for employment at Lumen, they are not for employment with us, but may relate to another company with a similar name.
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Work arrangement
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