Application Developer SME (TS/SCI with Poly Required)

GCI; Chantilly; Sur place; EUR 143 954 - 240 403; Plein temps

Résumé du poste

GCI in Chantilly, VA seeks an Application Developer SME (TS/SCI with Poly Required) to support data analytics and software development across mission systems. The role emphasizes full lifecycle development, security-focused design, and collaboration with cross-functional teams in a high-security environment.

The candidate will work on ServiceNow, Cognos, Oracle SQL, TM1, .NET MVC, Ruby on Rails, and cloud infrastructure, ensuring accessibility and compliance with ICD-503 processes while

Qualifications

• Experience across all phases of the O&M software lifecycle, issue tracking, testing, and performance testing.
• Experience with ServiceNow.
• Experience with Cognos and IBM SPSS Statistics; converting SPSS syntax into Cognos reports.
• Experience using Oracle SQL and TM1.
• Experience utilizing Update Sets for lifecycle management and promotion of features and bug fixes.
• Experience using ServicePortal for UI development.
• Ability to meet accessibility standards (Section 508 and WCAG).
• Experience with HR datasets and data flow dynamics.
• Experience with Unit Testing, System/Integration Testing, and UAT concepts.
• Experience with DevSecOps tools for security-focused design.
• Experience with .NET MVC web app design and development.
• Experience with Ruby on Rails web app design and development.
• Experience with Linux/Windows Cloud Server management.
• Experience with cloud infrastructure scripting and enterprise tools.
• Experience with ICD-503 accreditation process.
• Certification: ServiceNow.

Responsabilités

• Provide application development and maintenance to meet mission requirements.
• Collaborate with cross-functional teams in data analytics and software development.

Connaissances

O&M Software Lifecycle

ServiceNow

Cognos

IBM SPSS Statistics

Oracle SQL

TM1

Update Sets

ServicePortal UI

Accessibility WCAG/508

HR Data & Datasets

Unit/Integration/UAT Testing

DevSecOps Tools

.NET MVC

Ruby on Rails

Cloud Infrastructure

ICD-503

ServiceNow Certification

Formation

BA/BS

Outils

Tableau

Power BI

Description du poste

Application Developer SME (TS/SCI with Poly Required)

Job Category: Software Engineering

Requisition Number: APPLI002215

• Posted : July 20, 2026
• Full-Time
• On-site
• Salary Range: $164,382.40 USD to $274,518.40 USD

Location

Chantilly, Chantilly, VA, USA

Description

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leveraging 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.

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 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

Education

Preferred: BA/BS or better.

Experience

Required: 15 years of demonstrated work-related experience.

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.