Sr Systems Engineer

  • GovCIO LLC
  • Anacostia Annex, Washington DC
  • 10/19/2026
Full time Information Technology Telecommunications

Job Description

The Senior Systems Engineer - Cybersecurity & CSfC Architecture leads design and modernization of secure, resilient enterprise IT for classified federal environments. This role provides subject-matter expertise across systems, network, and cybersecurity engineering; defines technical direction; architects CSfC and multi-domain solutions; plans post-quantum cryptography migration; and applies AI/data analytics to improve network operations and cyber defense. The position is fully on-site in a TS/SCI environment.

Responsibilities

  • Provide SME-level leadership for systems, network, and cybersecurity engineering efforts to meet mission objectives across the enterprise.
  • Architect and design secure, resilient multi-domain IT solutions, including CSf
  • C-based capabilities and integration of multiple Top Secret enclaves.
  • Plan and lead migration to post-quantum cryptography in line with NSA CNSA 2.0, including crypto inventory, prioritization, and vendor coordination.
  • Evaluate and integrate AI and data analytics to enhance network operations, cyber defense, and decision support for high-consequence environments.
  • Retire legacy technical debt and implement modern engineering practices that strengthen defensive cyber operations.
  • Serve as senior technical interface to internal and client engineering leadership, presenting options, risks, and technical recommendations.
  • Mentor senior and mid-level engineers; review architectures, accreditation artifacts, and technical deliverables for quality and compliance.
  • Support RMF security activities and accreditation packages for systems under the engineer's technical purview.

Required Skills

  • Systems engineering
  • Network architecture and design
  • Cybersecurity engineering
  • Enterprise architecture
  • Commercial Solutions for Classified (CSf
  • C)
  • Post-quantum cryptography (PQC)
  • Artificial intelligence and machine learning
  • Data analytics for cyber/network operations
  • Risk Management Framework (RMF)
  • Security architecture and zero-trust design