Software Developer in Fairfax, Virginia at Nationwide IT Services

Software Developer
Security and Certification
Requirements: IT-II - Sensitive; Secret clearance; IAT II.
The candidate must hold the applicable DoD 8140.01-M baseline certification.
Computing environment certification: Microsoft Certified Azure Administrator Associate.Position SummaryThe Software Developer ensures the stable operation, modernization, and security of customized enterprise software applications. The developer designs and delivers new programs and software solutions aligned with evolving business needs while planning, developing, testing, maintaining, supporting, and optimizing hard-coded applications built with ColdFusion 2023/2025 and .NET Framework 4.8 across Windows and Linux server environments. The role applies advanced knowledge of secure coding and cross-platform architecture to sustain operational systems, modernize legacy capabilities, resolve complex defects, and maintain strict security compliance.
This opportunity is fully remote.Key Responsibilities

• Design, develop, test, deploy, maintain, support, and optimize customized enterprise applications using ColdFusion 2023/2025 and .NET Framework 4.8.
• Develop new programs, application features, and software solutions in direct alignment with documented business and operational requirements.
• Provide continuous maintenance support for operational systems, including corrective maintenance, legacy-system upgrades, performance optimization, and new-feature development.
• Analyze and resolve complex software defects, integration failures, performance issues, and architectural problems across Windows and Linux environments.
• Conduct cybersecurity remediation, vulnerability mitigation, secure code reviews, and code auditing for ColdFusion and .NET applications.
• Apply secure coding practices and security controls throughout the software development lifecycle to maintain applicable compliance requirements.
• Develop, secure, document, and integrate APIs that connect diverse enterprise applications, platforms, and data services.
• Use Visual Studio and Visual Studio Code to write, test, debug, troubleshoot, and maintain clean, high-performance source code.
• Use GitHub for version control, repository administration, branching, pull requests, peer reviews, release coordination, and collaborative development.
• Prepare and maintain software designs, architecture documentation, interface specifications, release notes, operating procedures, and technical support materials.
• Provide recommendations on technology direction, application architecture, modernization priorities, and API integration in support of the organization’s business vision.
• Collaborate effectively with customers, system administrators, cybersecurity personnel, developers, testers, and other technical stakeholders.

Required Qualifications

• Five years of progressive software-engineering experience, including concentrated hands-on experience developing, maintaining, and troubleshooting applications using ColdFusion 2023/2025 and .NET Framework 4.8 across Linux and Windows server environments.
• Proven experience performing cybersecurity remediation, vulnerability mitigation, secure code auditing, and secure coding across ColdFusion and .NET application architectures.
• Experience using Visual Studio and Visual Studio Code to write, test, debug, and maintain source code.
• Experience using GitHub for version control, repository management, branch management, pull requests, and collaborative peer code reviews.
• Experience developing, securing, documenting, and integrating APIs that connect diverse software systems.
• Demonstrated ability to write clean, maintainable, secure, and high-performance hard-coded software solutions.
• Excellent interpersonal, customer-service, analytical, troubleshooting, and problem-solving skills.
• Relevant certification from a nationally recognized technical authority.
• Microsoft Certified Azure Administrator Associate certification.
• Ability to satisfy IT-II Sensitive, Secret clearance, and IAT II requirements applicable to the assigned position.
• If duties require privileged access, possession of the applicable DoD 8140.01-M baseline certification for application, data, database, utility, or software-tools administration.

Preferred Qualifications

• Experience modernizing legacy ColdFusion and .NET enterprise applications without disrupting operational availability.
• Experience supporting regulated, mission-critical, or Federal information systems in mixed Windows and Linux environments.
• Working knowledge of cross-platform application architecture, system integration, cloud services, and enterprise API-management practices.

Why Join Nationwide IT ServicesNationwide IT Services is a trusted government contractor supporting Department of Defense customers. Join us to work on high-impact cybersecurity missions with experienced professionals in a collaborative, growth-focused environment.

Our benefits package includes medical, dental, and vision insurance; life and disability insurance; a 401(k) plan with employer match; paid holidays; PTO (sick/vacation); commuter benefits; an employee assistance program (EAP); educational reimbursement; and Pet Insurance.

Salary range $120,000 to $140,000 annually
The salary range is a general guideline. We consider several factors when determining base salary offers, including the position's scope and responsibilities, the candidate's experience, education, and skills, and current market conditions.