SR INFORMATION SECURITY ENGINEER - Cybersecurity Incident Response
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AI Summary
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
Cybersecurity Incident Response Team (CIRT) Engineers at Lumen are on the front lines of protecting the systems that power global connectivity. In this role, you’ll respond to and mitigate cybersecurity threats while proactively identifying risks and strengthening our defenses.
At Lumen, this work goes beyond incident response, it’s an opportunity to solve complex problems, influence how we defend at scale, and help shape the future of our security capabilities. You’ll collaborate with internal teams and partners to drive innovation, improve detection, and anticipate emerging threats in a fast-paced, high-accountability environment.
If you’re motivated by challenging work, continuous learning, and the chance to make a real impact, this role offers the flexibility, trust, and support to help you grow while contributing to meaningful outcomes across our infrastructure and services.
Location
This is a remote position open to candidates based anywhere in the U.S.
The Main Responsibilities
- Shift hours are from 10:00am to 7:00pm Pacific Time. Analyst can be located in any US state.
- Respond to, remediate, and document information security incidents not limited to dashboard (Advanced Threat Appliance & SIEM) alerts, tickets, emails, or phone calls.
- Actively hunt the enterprise for insecure, suspicious, or malicious activity.
- Review data that is processed within the SIEM to find incident evidence and suspicious events as well as out of scope events.
- Verify and validate security notifications from both internal and external sources.
- Identify and resolve incidents that are not defined by (or deviate from) an existing incident response guide.
- Assist with significant incidents as needed or assigned, including outside of normal business hours.
- Provide feedback for development and consistency of automated threat detection mechanisms.
- Update and maintain response guides for accuracy.
- Support Security projects to improve Cyber Defense Team or Lumen's security posture.
- Demonstrate effective communication skills, both verbal and written
What We Look For in a Candidate
Minimum Qualifications
- Bachelor’s in Computer Science, Engineering, or related field (or equivalent experience)
- Strong understanding of security fundamentals: host/network hardening, networking protocols, intrusion techniques, and risk management
- Analytical/problem-solving skills across networking, operating systems, and malware analysis
- Relevant certifications (or willingness to obtain): Security+, CEH, OSCP, GCIH, CISSP, GPEN, GWAPT, GISEC, CISM, or CISA
- U.S.-based and able to obtain government suitability
- Strong communication skills; able to present technical concepts to both technical and non-technical audiences
- Experience with cloud security (AWS, Azure, GCP)
- Broad knowledge of current and emerging technologies
Preferred Qualifications
- 4+ years in incident response, forensics, risk assessments, application or network security
- Experience in network/firewall engineering, design, and implementation
- Familiarity with security tools (SIEM, IDS/IPS, endpoint protection)
- Experience monitoring threats and performing initial triage
- Microsoft or UNIX/Linux administration
- Experience implementing controls to reduce risk and data exposure
- Scripting experience (Python or Perl)
- Experience in large enterprise or carrier-scale environments
Compensation
This information reflects the anticipated base salary range for this position based on current national data. Minimums and maximums may vary based on location. Individual pay is based on skills, experience and other relevant factors.
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What to Expect Next
Requisition #: 342538
Life at Lumen
Life at Lumen is human and connected, even in a fast moving, AI‑focused organization. We set clear expectations and trust people to meet them. With real support and shared accountability, teams collaborate better, move faster, and deliver meaningful outcomes.
Our Lumen 8 behaviors guide how we interact, make decisions, and work together, shaping a culture built to perform and win.
To learn more about Life at Lumen and how we live the Lumen 8, please visit:
https://jobs.lumen.com/global/en/life-at-lumen
Background Screening
If you are selected for a position, there will be a background screen, which may include checks for criminal records and/or motor vehicle reports and/or drug screening, depending on the position requirements. For more information on these checks, please refer to the Post Offer section of our FAQ page. Job-related concerns identified during the background screening may disqualify you from the new position or your current role. Background results will be evaluated on a case-by-case basis.
Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
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
Lumen is committed to protecting the privacy and security of personal information collected during the recruitment and hiring process. Our Applicant Privacy Notice explains how we collect, use, disclose, and protect applicant information, as well as how individuals may request access to or deletion of their personal data.
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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