SAIC is seeking a **Back-End Developer** to design, develop, test, implement, and maintain core application software for our customer **on-site in Arlington, VA**. This role encompasses a wide range of development activities, from updating SQL scripts to designing and implementing new application features. The position also supports platform operations and helps ensure system reliability, security, and performance. The ideal candidate will adhere to coding best practices, contribute to continuous improvement initiatives, follow established quality control processes, and help maintain secure, scalable, and high-performing applications. - Develop and maintain backend services using .NET Core and .Net Framework. - Design and develop APIs for seamless integration with front-end and various third-party applications. - Ensure that applications and functionality are accurate and secure. - Collaborate with front-end developers to seamlessly integrate server-side functionality, web services, and database queries with user-facing components. - Stay up to date with emerging back-end technologies and industry best practices to drive innovation. - Participate in code reviews to uphold code quality and industry standards. ### Qualifications - U.S. Citizen and an active Secret clearance or higher - Proven work experience with API development with a focus on C# .NET Core or .Net Framework. - Development experience with PL/SQL or equivalent. - Experience developing enterprise-level applications and supporting end-to-end systems development and delivery in an Agile environment. - Experience with systems integration (i.e. moving data from one system to another, integrating functions between applications, experience with ETL, work with APIs, advanced level expertise with scripting languages). - Relational database experience. - In-depth understanding of the entire web development process, encompassing design, development, and deployment. - Understanding of code versioning tools such as Git/Gitlab. - Hands-on experience with Rest API, RESTful services, JWT, and asynchronous request handling. Desired Experience/Skills/Attributes: - Development in a Windows environment - Development experience with VB.NET to the level required to modify and/or debug existing code - Development experience with C# to a level required to create new code libraries and services utilized by other consumers, and maintainable by other developers. - Development experience with PL/SQL to a level required to query and update data across multiple tables and schema. - Containerization using Docker - CI/CD pipelines ### About the Company [SAIC®](http://www.saic.com/) is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit [saic.com](http://www.saic.com/). For ongoing news, please visit our [newsroom](http://www.saic.com/who-we-are/newsroom/).