Senior Software Developer

Barbaricum is seeking an experienced Senior Software Developer to support the development, enhancement, and sustainment of enterprise-level applications. This role involves contributing to the architecture, design, and implementation of secure, scalable, and high-performing solutions using .NET Core, Entity Framework Core, ReactJS, and MS SQL Server. The developer will collaborate with product owners and UX/UI designers, managing the full development lifecycle from design to deployment in Azure DevOps, ensuring adherence to secure coding standards.

Must Have

• Design, develop, and maintain web applications using .NET Core, Entity Framework Core, MS SQL Server, and ReactJS
• Build modern, responsive front-end experiences using Vite and contemporary JavaScript tooling
• Develop and maintain custom integrations and enhancements within SharePoint
• Architect and optimize SQL database structures, queries, functions, and stored procedures
• Manage source control and CI/CD pipelines using Azure DevOps
• Active DoD TS/SCI security clearance
• Bachelor’s degree in IT, Cybersecurity, Computer Science, Information Systems, Data Science, or Software Engineering
• 10+ years of professional software development experience
• Active CSSLP, GSEC, or CISSP-ISSAP certification
• Strong proficiency in C#, .NET Core, Entity Framework Core
• Experience with ReactJS and modern front-end workflows (including Vite)
• Strong understanding of MS SQL Server and relational database design
• Proficiency with Azure DevOps, Git, and CI/CD pipeline management
• Experienced with Visual Studio and/or Visual Studio Code
• Strong problem-solving skills

Good to Have

• Experience with Azure Cloud services
• Experience with containerization technologies (Docker, Kubernetes)
• Knowledge of modern authentication protocols, including OAuth and OpenID Connect

Barbaricum is a rapidly growing government contractor providing leading-edge support to federal customers, with a particular focus on Defense and National Security mission sets. We leverage more than 17 years of support to stakeholders across the federal government, with established and growing capabilities across Intelligence, Analytics, Engineering, Mission Support, and Communications disciplines. Founded in 2008, our mission is to transform the way our customers approach constantly changing and complex problem sets by bringing to bear the latest in technology and the highest caliber of talent.

Headquartered in Washington, DC's historic Dupont Circle neighborhood, Barbaricum also has a corporate presence in Tampa, FL, Bedford, IN, and Dayton, OH, with team members across the United States and around the world. As a leader in our space, we partner with firms in the private sector, academic institutions, and industry associations with a goal of continually building our expertise and capabilities for the benefit of our employees and the customers we support. Through all of this, we have built a vibrant corporate culture diverse in expertise and perspectives with a focus on collaboration and innovation. Our teams are at the frontier of the Nation's most complex and rewarding challenges. Join our team.

We’re looking for an experienced Senior Software Developer to support development, enhancement, and sustainment of enterprise-level applications within a dynamic mission environment. This is an opportunity to contribute to the architecture, design, and implementation of secure, scalable, and high-performing solutions that directly support critical operational requirements.

The Senior Software Developer will design, build, and maintain modern web applications using .NET Core, Entity Framework Core, ReactJS, MS SQL Server, and supporting technologies. You will collaborate closely with product owners, UX/UI designers, and engineering teams to deliver intuitive user interfaces, efficient backend services, and seamless integrations within an enterprise environment.

This position requires strong full-stack development experience, a commitment to secure coding standards, and the ability to support continuous integration and delivery pipelines in Azure DevOps. The ideal candidate is comfortable working across the entire development lifecycle—from architecture and design to deployment, troubleshooting, and optimization.

Responsibilities

• Design, develop, and maintain web applications using .NET Core, Entity Framework Core, MS SQL Server, and ReactJS
• Build modern, responsive front-end experiences using Vite and contemporary JavaScript tooling
• Develop and maintain custom integrations and enhancements within SharePoint
• Architect and optimize SQL database structures, queries, functions, and stored procedures
• Partner with UX/UI designers, product owners, and engineering teammates to deliver high-quality solutions
• Manage source control and CI/CD pipelines using Azure DevOps
• Participate in technical planning sessions, code reviews, and architecture discussions
• Troubleshoot, debug, and resolve software issues across the stack
• Ensure adherence to best practices related to security, performance, scalability, and maintainability

Required Qualifications

• Active DoD TS/SCI security clearance
• Bachelor’s degree in IT, Cybersecurity, Computer Science, Information Systems, Data Science, or Software Engineering
• 10+ years of professional software development experience
• Active CSSLP, GSEC, or CISSP-ISSAP certification
• Strong proficiency in C#, .NET Core, Entity Framework Core
• Experience with ReactJS and modern front-end workflows (including Vite)
• Strong understanding of MS SQL Server and relational database design
• Familiarity with SharePoint development and basic integration capabilities
• Proficiency with Azure DevOps, Git, and CI/CD pipeline management
• Experienced with Visual Studio and/or Visual Studio Code
• Strong problem-solving skills and ability to work in a fast-paced, collaborative environment

Desired Qualifications

• Experience with Azure Cloud services
• Experience with containerization technologies (Docker, Kubernetes)
• Knowledge of modern authentication protocols, including OAuth and OpenID Connect

EEO Commitment

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law.

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