Application Developer SME (TS/SCI with Poly Required) with Security Clearance

Job Category: Software Engineering Requisition Number: APPLI002215 Posting Details * Posted: July 20, 2026
* Full-Time
* On-site
* Salary Range: $164,382.40 USD to $274,518.40 USD Job Details Description 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 an Application Developer SME, a typical day will include the following duties: REQUIRED SKILLS: * Demonstrated experience in all phases of the Operation and Maintenance (O&M) Software Lifecycle model, tracking issues and managing trouble tickets, testing software, writing test cases, and performance testing.
* Demonstrated experience with ServiceNow.
* Demonstrated experience using COGNOS and IBM SPSS Statistics, understanding SPSS syntax, and experience converting it into Cognos reports.
* Demonstrated experience using Oracle SQL and TM1.
* Demonstrated experience with JavaScript/JQuery/AJAX, HTML/CSS, Angular, or similar frameworks used to develop and implement User Interface and application components within the platform.
* Demonstrated experience utilizing Update Sets in conjunction with the lifecycle management and promotion of features and bug fixes throughout the environment stack.
* Demonstrated experience using ServicePortal for UI Development of web interfaces.
* Demonstrated experience developing and maintaining applications to meet required Accessibility standards (Section 508 and more robust WCAG and organizational standards).
* Demonstrated experience with HR-related and customer-specific datasets including limitations of those datasets and system/data flow dynamics.
* Demonstrated experience with Unit Testing, System/Integration Testing, and User Acceptance testing concepts and activities in the customer environment.
* Demonstrated experience using customer-approved DevSecOps tools and concepts to support the Security-focused design of highly usable and dynamic applications.
* Demonstrated experience with .NET MVC web application design and development.
* Demonstrated experience with custom Ruby-on-Rails web application design and development.
* Demonstrated experience with Linux and Windows Cloud Server management.
* Demonstrated experience managing Cloud infrastructure through cloud-native scripting languages and must-use enterprise tools and frameworks.
* Demonstrated experience with the ICD-503 process for accrediting applications and systems within the sponsor network, including submission of evidence, and leading remediation efforts to address any risks or identified issues.
* Certifications: ServiceNow
DESIRED SKILLS: * Demonstrated experience with HR systems and tools.
* Demonstrated experience with large datasets.
* Demonstrated experience with survey administration and response analysis.
* Demonstrated experience with Tableau, Power BI, or other data analytics tools.
* Demonstrated experience with Project Management principles and Agile Development principles to assist with the planning, development, testing, and execution of a project and project activities.
* Demonstrated experience with the RMF Framework along with Agile principles to ensure the effective mitigation of risk while operating in a dynamic Agile environment
  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  Qualifications Skills Behaviors : Motivations : Education Preferred BA/BS or better. Experience Required 15 years:
Demonstrated work related experience. Licenses & Certifications Equal Opportunity Employer This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor. Click here to learn more about us!