Software Engineer - TS/SCI w/Polygraph

Clearance Level
Top Secret SCI + Polygraph
Systems Engineering
McLean, Virginia

REQ#: RQ122366

Travel Required: None
Requisition Type: Regular

We are GDIT. We stay at the forefront of innovation to solve complex technical challenges. GDIT is your place. Make it your own by discovering new ways to securely and expertly apply the latest technology. Own your opportunity at GDIT and you’ll be a meaningful part of improving how agencies operate.

Our work depends on a Senior Software Engineer joining our team to support our client activities in McLean, VA. The Software Engineer will design, develop, code, test, and debug complex software products, or make significant enhancements to existing software. The ideal candidate is a hands-on platform builder with significant experience in developing scalable data platforms, with experience in business intelligence, analytics, and data science and data products. They must have strong, firsthand technical expertise in a variety of configuration management and big data technologies and the proven ability to fashion robust scalable solutions that can manage large data sets. They must be at ease working in an agile environment with little supervision. This person should embody a passion for continuous improvement and innovation.


  • Work with a team to analyze existing software applications and tools, and recommend new technologies and methodologies to improve system performance and usability

  • Design, develops, tests, debugs, and deploys new software tools that extend or replace existing capabilities

  • Advise hardware engineers on machine characteristics that affect software systems, such as storage capacity, processing speed, and input/output requirements and works with them to resolve incompatibilities

  • Write and updates technical documentation such as user manuals, system documentation, training materials, processes and procedures

  • Collaborate cross-functionally with data scientists, analyst, project managers and other engineers and analysts

  • Provide ongoing maintenance, support, and enhancements in existing systems and platforms

  • Design and develop a processing platform using various configuration management technologies

  • Provide ongoing maintenance, support, and enhancements in existing systems and platforms

  • Troubleshoots complex problems and provides 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


  • TS/SCI with Polygraph

  • Bachelor's degree in Computer Science, Information Technology, or other related technical discipline, or equivalent combination of education, technical certifications, training, and work/military experience

  • 8 years of related software engineering, data analysis or ETL experience

  •  Demonstrated hands-on experience with modern programming languages including Java, Java Script, Python, and other non-relational databases

  • Demonstrated hands-on experience integrating and developing code for visualization of data (e.g, using D3.js or vue.js libraries or developing Tableau or Kibana dashboards)

  • Demonstrated hands-on experience with clustered machines and technologies like Elasticsearch, Redis or Greenplum

  • Demonstrated hands-on DevOps experience building and deploying infrastructure with technologies such as Ansible and Puppet

  • Demonstrated hands-on experience with monitoring technologies like ELK, Prometheus, Grafana, etc.
    Demonstrated hands-on experience with building APIs and services using REST

  • Demonstrated hands-on experience with build automation technologies like Maven, Jenkins, etc.

  • Demonstrated hands-on experience with Linux (preferred) or Windows operating systems


  • Demonstrated hands-on experience in programming and software development experience in programming web and client/server applications using PHP, C++, C#, HTML, etc.

  • Demonstrated hands-on experience working with Docker, Kubernetes, Kafka, Rabbit MQ, Apache NiFi and Mongo DB

  • Demonstrated hands-on experience with database technologies (e.g. Postgres, SQL Server, Oracle, and OmniSci)

  • Demonstrated hands-on experience designing and developing a processing platform using various configuration management technologies (e.g., Git)

  • Demonstrated hands-on experience with Linux-based systems and shell scripting


  • 401K with company match

  • Rewards program for high-performing employees

  • Challenging work that makes a real impact on the world around you

  • Internal mobility team dedicated to helping you own your career

  • Not sure this job’s the one for you? Check out our other openings at



About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.