Intermediate Applications Developer (On-Site)

Oneida Professional Services is seeking an Intermediate Applications Developer to support the Defense Information School (DINFOS) Technology & Logistics Support Services contract at Fort Meade, Maryland. This position is responsible for designing, developing, testing, implementing, and maintaining custom and commercial off-the-shelf (COTS) applications that support DINFOS academic, administrative, and operational requirements.

The successful candidate will work closely with stakeholders, end users, and technical teams to develop innovative application solutions, improve existing systems, and support the full Software Development Life Cycle (SDLC). This role requires strong experience with .NET technologies, database development, web application security, and modern application development practices.

Key Responsibilities

• Design, develop, test, implement, and maintain custom and commercial off-the-shelf (COTS) software applications.
• Participate in all phases of the Software Development Life Cycle (SDLC), including requirements analysis, design, development, testing, deployment, and sustainment.
• Collaborate with stakeholders and end users to gather, analyze, and validate business and technical requirements.
• Develop prototypes, user interfaces, workflows, use cases, reports, and screen layouts to support application development efforts.
• Create, modify, and optimize relational databases to improve application performance, scalability, and reliability.
• Support application deployment activities and prepare development, test, and production environments.
• Troubleshoot application issues and provide ongoing maintenance and enhancement support.
• Develop technical documentation, design specifications, testing documentation, and user support materials.
• Ensure applications comply with organizational security requirements, coding standards, and best practices.
• Implement and maintain Section 508 accessibility compliance requirements for web-based applications.
• Support web content management activities and web application security initiatives.
• Perform additional duties and development activities as assigned by the Applications Manager.