Lead Information Security Engineer

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

Red Team - Lead Information Security Engineer The Lead Information Security Engineer within Product and Platform Security provides technical leadership and hands-on execution across Red Team functions. This role leverages advanced penetration testing and adversarial emulation to identify and ethically exploit vulnerabilities across enterprise systems, products, services, and applications in cloud-native and hybrid environments. The Lead plans and executes Adversarial Cybersecurity Emulation (ACE) exercises, including AI-driven threat scenarios, to evaluate and strengthen security defenses.

At Lumen, we are igniting business growth by connecting people, data, and applications quickly, securely, and effortlessly. As part of our security organization, you will help protect critical platforms and technologies while advancing Red Team capabilities through innovation, automation, and threat-informed testing.

The Lead is expected to balance deep technical expertise with leadership responsibilities, including guiding engagements, setting technical direction, mentoring engineers, ensuring quality outcomes, and driving remediation efforts to completion. This role also leads strategic initiatives that enhance penetration testing, adversarial emulation, and security testing capabilities while partnering with stakeholders across technology, engineering, product, and security teams to reduce risk and improve resilience.

Location

This is a remote opportunity open to candidates located anywhere in the U.S.

The Main Responsibilities

• Serve as a cybersecurity and Red Team subject matter expert, leading penetration testing, adversarial emulation, and threat-based security assessments.
• Lead end-to-end planning, execution, and reporting of complex security assessments across infrastructure, applications, cloud platforms, APIs, databases, and identity systems.
• Direct Advanced Cyber Exercises (ACE) and Red Team engagements, coordinating stakeholders, managing risk, and delivering actionable security recommendations.
• Provide technical leadership across multiple concurrent initiatives, ensuring quality, accuracy, and successful delivery while remaining hands-on with testing activities.
• Define testing strategies, review findings and risk assessments, and guide remediation efforts to reduce organizational risk.
• Partner with incident response, engineering, product, and business teams to identify vulnerabilities, evaluate attack paths, and strengthen security controls.
• Drive innovation through automation, tooling, process improvements, AI/ML-enabled security capabilities, and the expansion of Red Team services.
• Communicate technical risks and business impacts to executive and technical audiences, promote knowledge sharing, and foster a strong security-focused culture.

What We Look For in a Candidate

Minimum Qualifications

• Bachelor’s degree in Information Security, Computer Science, Engineering, or related field (or equivalent experience).
• 5+ years of hands-on penetration testing, offensive security, or advanced security assessment experience; 7+ years in Information Security (or 5+ years with a Bachelor's degree).
• Professional certifications in penetration testing such as GPEN, GWAPT, GMOB, GXPN, OSCP, OSEP, OSWE, or equivalent.
• Proven experience leading complex penetration tests and adversarial exercises from planning through technical and executive reporting.
• Deep expertise in MITRE ATT&CK, threat-informed testing, adversarial emulation, and modern cyber threats, vulnerabilities, and exploit techniques.
• Strong knowledge of AWS, Azure, and/or GCP security, including identity, networking, workloads, and cloud control planes.
• Experience applying OWASP, NIST, CIS Controls, and other security frameworks.
• Advanced knowledge of networks, operating systems, identity systems, applications, APIs, scripting, and enterprise technologies.
• Demonstrated leadership, mentoring, commun