Demo

Software Engineer - Back End (TS/SCI with Poly Required)

GCI
Chantilly, VA Full Time
POSTED ON 11/24/2025
AVAILABLE BEFORE 1/24/2026

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry.

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

JOB DESCRIPTION

The Back End Software Engineer will design and develop complex new software products or make significant enhancements to existing software.  The ideal candidate is a hands-on developer with significant experience in building modular, reusable services and features.  They must have extensive, firsthand technical expertise in a modern service-oriented architecture. They must be at ease working in an Agile environment with little supervision.  This person should embody a passion for continuous improvement and innovation.

KEY RESPONSIBILITIES

  • Build reusable components that align with the system design patterns.
  • Optimize application for maximum speed and scalability.
  • Participate in team design and code reviews.
  • Collaborate with a small team of engineers and designers to understand business requirements and user experience goals.
  • Provide recommendations for continuous improvement.
  • Provide ongoing maintenance, support, and enhancements in existing systems and platforms.
  • Troubleshoots complex problems and provides customer support for software systems and application issues.

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.
  • 10 years of related software development experience.

REQUIRED QUALIFICATIONS

  • Expert knowledge of NodeJS or Python.
  • Experience designing complex discrete services.
  • Experience in services for performance and scalability.
  • Experience integrating with third part APIs.
  • Proficient understanding of code versioning tools, such as Git.
  • Experience with Linux operating systems.

DESIRED QUALIFICATIONS

  • Experience with AI translation tools such as NLLB and language detection products.
  • Docker or other container experience.
  • Hands-on experience working with Elastic and RabbitMQ (or other queue technology).
  • NoSQL experience (i.e. MongoDB).
  • NiFi experience.
  • Distributed architecture creation.
  • Cloud based architecture creation or experience.

 

*A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance. 

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Salary.com Estimation for Software Engineer - Back End (TS/SCI with Poly Required) in Chantilly, VA
$135,327 to $164,035
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