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Communications Systems Engineer with Security Clearance

FTS International, LLCChantilly, VA🇺🇸United StatesPosted 11 Sept 2026

Why This Role Stands Out

Leverage your expertise in a hybrid Communications Systems Engineer role with FTS International, LLC, offering a competitive salary of $165,000 - $195,000 and the chance to shape next-generation national security systems. This position is ideal for mid-senior engineers passionate about advanced optical and quantum communication technologies who thrive in a supportive environment focused on mission success. Apply today to contribute to cutting-edge R&D for critical intelligence and defense initiatives.

Quick Overview

Salary
$165k - $195k/yr
Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Chantilly, VA, United States
Posted
3 days ago
Microsoft Office

Job Description

Communications Systems Engineer Location
Chantilly, VA Job Code
1629 # of Openings
1 Employee Referral Bonus Eligible
Yes FTS International, LLC (FTS) is committed to providing the Federal Government with quality consultants and support. To ensure mission success we focus on putting our customers first while minimizing corporate bureaucracy on our staff.

We provide Subject Matter Experts (SME) free of Organizational Conflicts of Interest (OCI) focused on independent analysis and mission support services within the disciplines of Engineering, Counter Terrorism Operations, Management, Information Technology, Signals Analysis, Administration, Cyber Security and Linguistics. FTS has an opportunity for a Communications Systems Engineer in Chantilly, VA. The Communications Systems Engineer will support specialized analysis, engineering, design, and operations for Intelligence Community (IC) and Department of War (DoW) customers. Responsibilities

  • Support development of next-generation and far-future national security systems across land, sea, air, and space domains
  • Provide systems engineering and technical advisory (SETA) support to an IC Research & Development (R&D) customer developing advanced hardware, software, and architectural solutions for mission-critical optical and quantum communication systems
  • Perform technical reviews, assessments, and risk evaluations of optical and quantum communication system development efforts at the component, subsystem, system, and architecture levels
  • Evaluate designs and technologies including optical terminals, free-space optical links, photonic components, entanglement-based communication architectures, and quantum-enhanced optical subsystems
  • Assess emerging technologies and identify gaps related to high-bandwidth space links, advanced modulation formats, pointing/tracking systems, link budgets, networking performance, and secure quantum-enabled transport architectures
  • Support development of technology roadmaps, requirements, specifications, verification approaches, and transition strategies for optical and quantum system modernization
  • Conduct technical outreach with mission users to capture needs and evaluate applicability of emerging optical and quantum capabilities
  • Prepare system engineering documentation, technical analyses, and program-level briefings to communicate findings and strategic recommendations
  • Provide support to programmatic and acquisition activities, including source selections, lifecycle documentation, and system integration planning

Required Skills/Qualifications

  • TS/SCI with polygraph
  • BS STEM (Science, Technology, Engineering, or Math) in engineering discipline
  • 12+ years' relevant experience with at least 4 years in optical or quantum communication systems
  • Experience with USG program management and acquisition lifecycle processes and documentation
  • Strong interpersonal, verbal, and technical writing communication skills
  • Demonstrated ability to work collaboratively within multidisciplinary teams
  • Proficiency with Microsoft Office tools

Desired Skills/Qualifications

  • MS STEM (Science, Technology, Engineering, or Math) in engineering discipline
  • 1+ year of experience supporting USG R&D acquisition processes and documentation
  • Experience with space-based optical terminals, quantum optical payloads, photonic systems, or advanced quantum-enhanced communication architectures Expected Salary Range: $165,000 - $195,000 per year.

Placement within the range is determined by qualifications, job-related criteria, experience, internal equity and market considerations. In addition, FTS International, LLC has benefits offerings in addition to salary to include Health Insurance, Paid Time Off, Life Insurance, Short Term and Long-Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections. FTS International, LLC is an

Equal Opportunity Employer – vets/disabled.

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