Senior Software Developer, Systems Software

Position is not funded and is contingent upon contract award.

501727 Job Title: Senior Software Developer, Systems Software 

Work Location: Arlington, VA / National Capital Region 

Schedule: Full Time 40 hours per week; 8 hours per day

Relocation: No

IronMountain Solutions, Inc. is seeking a Senior Software Developer, Systems Software to support the Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA). This role will serve as a technical lead for the operations, maintenance, and enhancement of the Critical Infrastructure Information Sharing Environment (CI-ISE) and Homeland Security Information Network (HSIN-CI) platforms.

Job Responsibilities:   

• Lead the technical architecture, module development, and configuration of Drupal-based web platforms supporting critical infrastructure information sharing.
• Design, implement, and maintain secure platform architectures within Sensitive But Unclassified (SBU) and For Official Use Only (FOUO) environments.
• Build and maintain seamless API integrations and content management frameworks across CISA/HSIN platforms.
• Optimize platform performance and scalability to ensure high availability for rapid operational and emergent event requirements.
• Enforce strict content governance and site hygiene by developing technical solutions to identify and remediate stale or duplicative content.
• Ensure all platform updates, interfaces, and deliverables achieve 100% compliance with Section 508 accessibility standards.
• Support Continuous Integration/Continuous Delivery (CI/CD) pipelines to deploy secure and tested code updates to the production environment.

Required Skills, Competencies and Abilities:

• Expert-level proficiency in Drupal architecture, module development, and site configuration.
• Deep understanding of secure platform design within SBU/FOUO environments.
• Advanced skills in API integration, web services, and content management frameworks.
• Strong capability in platform performance optimization, troubleshooting, and scalability.

Experience and Technical Knowledge (REQUIRED):

• Minimum of eight (8) years of professional experience in web or platform development.
• Minimum of three (3) years of experience developing and managing Drupal-based platforms.
• Certifications: Active Drupal certification or Government-approved equivalent credential is required.

• While performing the duties of this job, the employee is occasionally required to stand; walk; sit; use tools or controls; normal physical activity (reach with hands and arms; climb stairs); and communicate effectively with all levels of employees and leadership. The employee must occasionally lift or move office products and supplies, up to 25 pounds.

Education and General experience:

• Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related field.

Security Clearance Requirements:

• Must be able to obtain and maintain a DHS Suitability / Public Trust or Entry on Duty (EOD) approval. Per federal requirements, only U.S. citizens are eligible for this level of clearance.

IronMountain Solutions is an Equal Opportunity Employer