Capability Statement
Company Overview
Dellinger Software Solutions LLC is a Pennsylvania-based small business providing application modernization services for U.S. federal and defense organizations. The company specializes in transforming legacy systems into secure, maintainable, and standards-compliant applications using modern Microsoft .NET platforms and contemporary web frameworks, with proven experience operating in DoD STIG-controlled environments.
Core Competencies
Application Modernization & Sustainment
- Modernization of legacy applications to current Microsoft .NET platforms
- Modern, maintainable web application architectures aligned with current Microsoft .NET standards
- Refactoring and technical debt reduction to improve maintainability and performance
- Ongoing sustainment and enhancement of mission-critical systems
DevSecOps & Quality Engineering
- CI/CD pipeline implementation using Jenkins in restricted and regulated environments
- Unit, integration, and component testing to support regression control and long-term stability
- Static and dynamic security scanning remediation, including SonarQube and WebInspect findings
- Secure build and deployment practices aligned with DoD security requirements
Identity, Access, & Security
- CAC-enabled authentication and authorization
- Okta and Azure AD integrations
- Token-based security using OAuth2 and OpenID Connect
- Audit logging and security controls aligned with DoD STIG guidance
Data & Integration
- Enterprise data access using Oracle and SQL Server
- Entity Framework Core and data abstraction layers
- Integration with existing enterprise and legacy systems
Microsoft Power Platform (Supporting Capability)
- Enterprise data access using Oracle and SQL Server
- Entity Framework Core and data abstraction layers
- Integration with existing enterprise and legacy systems
Differentiators
Proven Federal and Public-Sector Modernization Experience
- Hands-on experience modernizing and sustaining enterprise applications supporting U.S. Department of Defense organizations
- Direct involvement in upgrading legacy systems to modern Microsoft .NET–based architectures within regulated environments
- Additional experience modernizing enterprise systems for state government organizations, applying the same risk-aware, incremental modernization approaches used in federal environments
Deep Familiarity with DoD Operational Environments
- Experience operating within STIG-controlled, CAC-enabled environments with strict security and compliance requirements
- Experience supporting systems deployed within controlled enterprise network environments
- Proven collaboration with government stakeholders, system owners, and security teams
Legacy System Transition Expertise
- Experience modernizing legacy backend systems, including mainframe-adjacent and database-centric applications
- PL/SQL development and maintenance supporting enterprise business logic and data processing
- Incremental modernization strategies that reduce risk while preserving mission continuity
Low-Risk Integration into Prime-Led Teams
- Extensive experience working as part of prime contractor teams supporting federal missions
- Ability to quickly integrate into existing development, DevOps, and compliance workflows
- Focus on delivering maintainable, well-documented solutions aligned with long-term sustainment needs
Past Performance
- Application modernization and sustainment support for U.S. Department of Defense organizations, including logistics, administrative, and academic environments
- Modernization of legacy enterprise systems to Microsoft .NET–based architectures while maintaining operational continuity
- Support for secure, STIG-controlled systems involving authentication, auditing, and compliance remediation activities
- Additional public-sector application modernization experience supporting state government organizations
Data & Integration
- Experience modernizing legacy backend systems, including mainframe-adjacent and database-centric applications
- PL/SQL development and maintenance supporting enterprise business logic and data processing
- Incremental modernization strategies that reduce risk while preserving mission continuity
Past Performance
- Application modernization and sustainment support for U.S. Department of Defense organizations, including logistics, administrative, and academic environments
- Modernization of legacy enterprise systems to Microsoft .NET–based architectures while maintaining operational continuity
- Support for secure, STIG-controlled systems involving authentication, auditing, and compliance remediation activities
- Additional public-sector application modernization experience supporting state government organizations
Business Information
- Entity Type: Small Business (LLC)
- Location: Carlisle, Pennsylvania
- UEI: THMUWLQARES9
- CAGE Code: 17SM3
- Accepts Subcontracts: Yes
Point of Contact
Bryan Dellinger
Founder / Principal Developer
Dellinger Software Solutions LLC
📧 bryan.dellinger@dellingersoftware.com
📞 717-713-4498