Lead Information Systems Security Officer (ISSO) - Post-Quantum Cryptography Remote, United States Posted 6 hours ago

Lumen Technologies, Inc.; United States; Remote; USD 110,000 - 150,000; Full time

Job summary

Lumen Technologies, Inc. is seeking a Lead Information Security Engineer (ISSO) to drive RMF execution and PQC readiness across customer environments.

You will act as the security authority on RP systems, coordinating with engineering and operations to ensure ATO outcomes and quantum-resilient security integration. Responsibilities include developing SSPs and evidence artifacts, assessing crypto architectures, and guiding migration roadmaps.

Qualifications

• Bachelor's degree in Cybersecurity, Information Assurance, Computer Science, Engineering, or related field, or equivalent experience.
• 5+ years of cybersecurity, governance, risk, and compliance with RMF and ATO responsibilities.
• Strong knowledge of NIST RMF (SP 800-37), NIST SP 800-53, and FedRAMP/FISMA requirements.
• Experience evaluating cryptographic implementations: PKI, key management, digital certificates, and encryption technologies.
• Knowledge of Post-Quantum Cryptography concepts and quantum threats; crypto-agility principles.
• Experience with PQC readiness assessments, cryptographic inventories, migration planning, and modernization initiatives.
• Strong written and verbal communication skills for technical and non-technical audiences.

Responsibilities

• Serve as the primary ISSO for assigned systems, owning end-to-end RMF execution and supporting ATO outcomes.
• Lead the integration of Post-Quantum Cryptography capabilities within customer environments per evolving guidance.
• Execute the full RMF lifecycle: categorization, control implementation, assessment readiness, authorization, and continuous monitoring.
• Develop, maintain, and validate SSPs, POA&Ms, cryptographic inventories, and implementation evidence.
• Evaluate cryptographic architectures and risks in PKI, key management, and certificate ecosystems.
• Support crypto-modernization, crypto agility planning, migrations, and PQC transition roadmaps.
• Assess emerging technologies for quantum readiness and security feasibility within authorized environments.
• Collaborate with engineering, operations, and program teams to remediate findings and gaps.

Skills

RMF execution

NIST RMF SP 800-37

PQC concepts

risk assessment

cryptography evaluation

communication skills

FedRAMP/FISMA knowledge

Education

Bachelor’s degree in Cybersecurity or related field

Tools

PKI

Certificate management

HSMs

Job description

## Lead Information Systems Security Officer (ISSO) - Post-Quantum CryptographyRemote, United StatesApply NowFind out how well you match with this jobJob ID: 342682Date posted: 10/19/2026Application Deadline: 11/02/2026Lumen 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**Lumen is seeking a Lead Information Security Engineer (ISSO) with deep expertise in Risk Management Framework (RMF) execution and a strong focus on Post-Quantum Cryptography (PQC) strategy, compliance, and implementation. In this role, you will serve as the primary security authority for assigned systems, ensuring successful Authorization to Operate (ATO) outcomes while helping customers prepare cryptographic environments for the emerging quantum threat landscape.As a technical leader, you will drive the integration of quantum-resilient security principles into system authorizations, architectures, and operational processes. You will partner with engineering, product, and customer stakeholders to evaluate cryptographic risk, assess emerging standards, support cryptographic modernization efforts, and ensure security compliance across federal and highly regulated environments.## **Location**This is a remote position open to candidates based anywhere in the U.S.## **The Main Responsibilities*** Serve as the primary ISSO for assigned systems, owning end-to-end RMF execution and supporting successful ATO outcomes.* Lead the security assessment and integration of Post-Quantum Cryptography (PQC) capabilities within customer environments, ensuring alignment with evolving federal guidance, NIST standards, and agency-specific requirements.* Execute the full RMF lifecycle, including categorization, control implementation, assessment readiness, authorization activities, and continuous monitoring.* Develop, maintain, and validate security authorization artifacts, including System Security Plans (SSPs), POA&Ms, cryptographic inventories, and implementation evidence.* Evaluate existing cryptographic architectures and identify risks associated with legacy public key infrastructure, encryption protocols, key management solutions, and certificate ecosystems.* Support cryptographic modernization initiatives, including crypto-agility planning, hybrid cryptographic implementations, migration roadmaps, and PQC transition strategies.* Assess emerging technologies, products, managed services, and architectures for security, compliance, quantum-readiness, and implementation feasibility within authorized customer environments.* Partner with engineering, operations, and program teams to drive remediation of vulnerabilities, security findings, cryptographic weaknesses, and compliance gaps.## **What We Look For in a Candidate*** Bachelor’s degree in Cybersecurity, Information Assurance, Computer Science, Engineering, or a related field, or equivalent combination of education and experience.* 5+ years of experience in cybersecurity, information assurance, governance, risk, and compliance, including direct responsibility for RMF execution and ATO support.* Strong working knowledge of NIST RMF (SP 800-37), NIST SP 800-53, and federal authorization frameworks including FedRAMP and FISMA.* Experience evaluating cryptographic implementations, public key infrastructure (PKI), key management systems, digital certificates, and encryption technologies.* Knowledge of Post-Quantum Cryptography concepts, quantum threats to traditional cryptography, crypto-agility principles, and emerging quantum-resistant algorithms.* Demonstrated experience supporting Post-Quantum Cryptography readiness assessments, cryptographic inventories, migration planning, or cryptographic modernization initiatives.* Knowledge of NIST PQC standardization efforts, quantum-resistant cryptographic algorithms, and emerging federal guidance related to quantum security preparedness.* Experience conducting security risk assessments and translating regulatory and technical requirements into actionable security guidance.* Experience developing and maintaining authorization artifacts, including SSPs, POA&Ms, security assessments, and continuous monitoring documentation.* Strong written and verbal communication skills with the ability to convey complex security and cryptographic concepts to technical and non-technical audiences.**Preferred:*** Experience supporting federal government, Department of Defense, Intelligence Community, or other highly regulated organizations.* Experience assessing cryptographic risks within cloud, hybrid, telecommunications, SaaS, or large-scale enterprise environments.* Experience with security architecture reviews, cryptographic design reviews, and evaluation of vendor PQC capabilities and roadmaps.* Professional certifications such as CISSP, CCSP, CGRC, CISA, Security+, or equivalent industry-recognized credentials.* Familiarity with secure communications technologies, certificate management, HSMs, key lifecycle management, and enterprise PKI architectures.* Proven ability to influence enterprise security strategy, drive cross-functional initiatives, and serve as a trusted advisor on quantum-resilient security solutions.* Demonstrated experience leading and supporting the accreditation of Commercial Solutions for Classified (CSfC) solutions, including development, coordination, and submission of CSfC Registration Packages and supporting artifacts through the National Security* Agency (NSA) approval process## **Security Requirements*** US citizenship required.* The capability to meet the suitability requirements for a GSA public trust position is required.## **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. Location Based Pay Ranges $105,786 - $141,047 in these states: AL AR AZ FL GA IA ID IN KS KY LA ME MO MS MT ND NE NM OH OK PA SC SD TN UT VT WI WV WY $111,074 - $148,099 in these states: CO HI MI MN NC NH NV OR RI $116,364 - $155,152 in these states: AK CA CT DC DE IL MA MD NJ NY TX VA WA Lumen offers a comprehensive package featuring a broad range of Health, Life, Voluntary Lifestyle benefits and other perks that enhance your physical, mental, emotional and financial wellbeing. We're able to answer any additional questions you may have about our bonus structure (short-term incentives, long-term incentives and/or sales compensation) as you move through the selection process. |||||||||||||||||| || Learn more about Lumen's: || Benefits || Bonus Structure #LI-Remote |