Senior Manager Information Security (Red team lead)

Senior Manager Information Security (Red Team Lead)

The Senior Manager, Information Security is responsible for proactively identifying, testing, and mitigating security gaps within the organization's digital estate. Unlike a traditional SOC analyst who reacts to alerts, this role is offensive and architectural in nature. You will rigorously review security policies and architecture, continuously test the effectiveness of cybersecurity controls through simulation and validation exercises, and drive the remediation of identified weaknesses. The ideal candidate combines the mindset of an attacker with the discipline of an auditor to ensure the organization's defenses remain resilient against evolving threats.

Performs tasks such as, but not limited to, the following:

• Security Policy & Architecture Review
• Continuous Control Validation (CCV) & Threat Hunting
• Gap Analysis & Mitigation
• Offensive Security Leadership

Knowledge/Skills/Competencies:

• 8–10 years of hands-on experience in cybersecurity, with a specific focus on penetration testing, threat hunting, or security architecture.
• Proven experience in reviewing and auditing security policies and technical architectures for enterprise environments.
• Experience with Breach and Attack Simulation (BAS) tools or manual emulation frameworks.
• Deep understanding of the MITRE ATT&CK framework.
• Proficiency in scripting languages for automating hunts and validation tests.
• Strong knowledge of operating system internals and network protocols.
• Familiarity with security control platforms.
• Analytical Thinking and Communication skills.
• Integrity with unwavering ethical standards.

Physical Demands:

Duties of this position are performed in a normal office environment. Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data. Repetitive manual movements are frequently required.

Typical Experience:

8–10 years of hands-on experience in cybersecurity, with a specific focus on penetration testing, threat hunting, or security architecture. Typical Education Bachelor's degree in Computer Science, Cybersecurity, Information Systems, or equivalent experience. Mandatory Offensive Security Certification: Must hold at least one advanced certification such as OSCP, GPEN, CEH Practical, or CompTIA PenTest+. Additional certifications in security architecture or cloud security are highly desirable.

Company Overview:

Celestica enables the world's best brands. Through our recognized customer-centric approach, we partner with leading companies in Aerospace and Defense, Communications, Enterprise, HealthTech, Industrial, Capital Equipment and Energy to deliver solutions for their most complex challenges. As a leader in design, manufacturing, hardware platform and supply chain solutions, Celestica brings global expertise and insight at every stage of product development – from drawing board to full-scale production and after-market services for products from advanced medical devices, to highly engineered aviation systems, to next-generation hardware platform solutions for the Cloud.