Cybersecurity Architect, (TS/SCI), CI Poly

The role

You will design, develop, and implement security architectures for unclassified, CUI, and classified information systems. You will support classified programs for the Department of Defense and Intelligence Community.

What you will do

• Architect end-to-end cybersecurity solutions for K2 Space, DoD and IC environments.
• Lead design and support accreditation of systems under the Risk Management Framework (RMF).
• Define and enforce security architecture baselines, reference models, and standards.
• Conduct threat modeling, vulnerability assessments, and security architecture reviews.
• Collaborate with program managers, system engineers, and government stakeholders.
• Evaluate emerging threats, technologies, and adversarial TTPs.
• Support Cross Domain Solution (CDS) design, evaluation, and accreditation efforts.
• Provide technical guidance on zero trust architecture (ZTA) implementation.
• Develop and present security architecture documentation and briefings to senior leadership.
• Mentor junior security team members.

Required qualifications

• Active Top Secret / SCI security clearance with Counterintelligence (CI) Polygraph.
• 8 or more years of cybersecurity experience supporting DoD, Intelligence Community, or U.S. government national security programs.
• Expertise in cybersecurity architecture design for classified and sensitive government networks and information systems.
• Familiarity with NIST SP 800-53, ICD 503, CNSSI 1253, DODI 8510.01 (RMF), and related DoD/IC cybersecurity policy frameworks.
• Experience designing or operating within multi-classification-level environments and managing cross-domain data transfer requirements.
• Proficiency in network security architecture, including segmentation, firewall policy, PKI/encryption, and intrusion detection/prevention.
• Understanding of endpoint security, identity and access management (IAM), and Privileged Access Management (PAM) in government environments.
• Ability to lead technical security architecture efforts and communicate findings to technical and executive audiences.
• DoD 8570/8140 IAT Level III or IAM Level III baseline certification.
• Bachelor's degree in Cybersecurity, Computer Science, Information Systems, Electrical Engineering, or a related technical discipline.

Nice to have

• Experience with zero trust architecture (ZTA) implementation in accordance with DoD ZT Strategy and NIST SP 800-207.
• Familiarity with NSA-approved cryptographic solutions and key management systems.
• Experience supporting all levels of classified programs.
• Background in cloud security architecture within classified environments (e.g., AWS C2S, Azure Government, or equivalent IL5/IL6 environments).
• Experience with Cross Domain Solutions (CDS), data guards, and approval processes.
• Prior experience as an Information System Security Officer (ISSO) or Information System Security Manager (ISSM).
• Familiarity with the Cybersecurity Maturity Model Certification (CMMC) framework.
• CISSP
• CISM
• SABSA

Benefits

• Paid time off
• Medical/dental/vision coverage
• Life insurance
• Paid parental leave

Before you apply

• Active Top Secret / SCI security clearance with Counterintelligence (CI) Polygraph must be in-scope and adjudicated prior to start.
• Must be a U.S. person as defined by 22 C.F.R. § 120.15 or otherwise eligible for a federally issued export control license.

About the company

K2 is building the largest and highest-power satellites ever flown. They are mass-producing high-power satellite platforms for missions from LEO to deep space.