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Software Engineer Senior; Security Clearance

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: GCI Incorporated
Full Time position
Listed on 2026-07-10
Job specializations:
  • Software Development
    Software Engineer, DevOps
Salary/Wage Range or Industry Benchmark: 120000 - 150000 USD Yearly USD 120000.00 150000.00 YEAR
Job Description & How to Apply Below
Position: Software Engineer Senior (Security Clearance Needed)

The Software Engineer will design and develop complex software systems and make significant enhancements to existing software. The ideal candidate is a hands‑on developer with significant experience in developing scalable platforms, leading software development activities, systems that process data and messaging, hardware implementation, creating documentation and guides, and organizing and managing operations and maintenance actions. The candidate must have strong, firsthand technical expertise in a variety of system technologies and the proven ability to fashion robust scalable solutions that can manage critical communication systems.

The candidate is a leader and provides supervision to more junior employees.

Typical Day

At GCI, we solve hard problems. As a Senior Software Engineer, a typical day will include the following duties:

  • Design and develop a processing platform using various configuration management technologies.
  • Provide ongoing maintenance, support, and enhancements in existing systems and platforms.
  • Troubleshoot complex problems and provide customer support for software systems and application issues.
  • Provide recommendations for continuous improvement.
  • Work alongside other engineers on the team to sustain and advance our organization’s capabilities.
Required Qualifications
  • Hands‑on experience with modern programming languages including Python or JavaScript.
  • Hands‑on experience working with JIRA, Redmine, or other development environment task manager/trackers.
  • Experience building and implementing systems that support both custom and off-the-shelf hardware features.
  • Hands‑on experience and familiarity with one or more of the following software/tools.
  • Experience with building APIs and services using REST, Hadoop, Map Reduce, Spark, etc.
  • Experience with build automation technologies like Maven, Jenkins, etc.
  • Experience with Linux (preferred) or Windows operating systems.
Education and Experience
  • Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.
  • 5 to 10 years of related software engineering experience.
Desired Qualifications
  • Experience with the design and development of modern, web‑based user interface and applications development and a related understanding of key technologies such as APIs that interface with hardware devices.
  • Understanding or exposure to FPGA programming.
  • Knowledge of wireless technology, digital/analog communications, or RF.
  • Experience with Test Automation and Continuous Integration.
Travel

GCI’s systems are distributed regionally throughout the continental United States (CONUS), and require quarterly updates to software systems, and occasionally hardware, as well. The successful candidate is able to travel at least four times a year to CONUS sites for two (2) to four (4) days to perform the scheduled maintenance.

  • A candidate must be a US Citizen and requires the ability to achieve and maintain an active/current TS/SCI with Polygraph clearance. GCI will work with the candidate to transfer their clearance, or sponsor them for a Secret, followed by a Top Secret clearance.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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Position Requirements
10+ Years work experience
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