Senior Software Developer – Secret

Xcelerate Solutions; Quantico (VA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Xcelerate Solutions in Quantico, Virginia, is seeking a Senior Software Developer to design, develop, and maintain secure, scalable enterprise software. You will work across full-stack technologies (C#, Java, Python), databases (SQL Server, Oracle), and platforms (SharePoint, ServiceNow), delivering RESTful APIs and microservices in a containerized, CI/CD-driven environment.

Lead architecture discussions, mentor engineers, and ensure SSDLC compliance while collaborating with DevSecOps,

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related technical discipline (or equivalent experience).
• 7+ years of professional software development experience designing and developing enterprise applications.
• Proficiency in C#, Java, Python; strong experience with Microsoft SQL Server and Oracle Database; database design and data modeling.
• Experience with SharePoint and ServiceNow platforms; RESTful APIs and enterprise web services; Docker-based containerized apps; Git and CI/CD tooling; microservices architectures.
• Experience with Secure Software Development Lifecycle (SSDLC) and DevSecOps practices; proficiency in designing scalable, secure software architectures.
• Experience with artifact repositories like Nexus and NuGet; strong code review, debugging, and performance tuning abilities.

Responsibilities

• Design, develop, test, deploy, and maintain secure, scalable enterprise software applications using modern software engineering and SecDevOps practices.
• Develop full-stack applications using ASP.NET Core, .NET Framework, Java, Python, and other modern languages and frameworks.
• Design, develop, optimize, and maintain relational database solutions using SQL Server, Oracle DB, and related technologies.
• Develop and maintain applications leveraging SharePoint and ServiceNow.
• Build, deploy, and maintain RESTful APIs and microservices architectures for distributed enterprise apps.
• Develop cloud-ready and containerized applications using Docker and orchestration platforms.
• Create, maintain Dockerfiles and IaC components for deployment and container lifecycle management.
• Design and implement secure CI/CD pipelines for automated build, test, deployment, and release processes.
• Configure, manage, and maintain self-hosted artifact repositories (Nexus, NuGet).
• Apply secure coding standards, vulnerability remediation, code scanning, and software supply chain security throughout the lifecycle.
• Collaborate with DevSecOps, sysadmins, architects, cybersecurity, and product owners to deliver high-quality software.
• Participate in architecture reviews, code reviews, design sessions, and technical planning.
• Troubleshoot and resolve complex software, database, and integration issues.
• Develop automated unit, integration, regression, and performance tests.
• Produce technical and API documentation and operational procedures.
• Mentor junior developers and promote best practices; support Agile methodologies.

Skills

C#

Java

Python

SQL Server

Oracle DB

SharePoint

ServiceNow

REST APIs

Microservices

Docker

CI/CD

SSDLC

Git

Design Patterns

Education

Bachelor's degree in Computer Science / Software Engineering / Information Technology

Tools

Nexus Repository

NuGet

Job description

Software Engineering Careers Hybrid Remote, Quantico, Virginia

Xcelerate Solutions is currently seeking Senior Software Developer. Come join our award-winning organization and work with some of the most talented and brightest minds in the GovCon industry.

Clearance: Secret

Location: Hybrid Remote, Quantico, Virginia

Responsibilities

• Design, develop, test, deploy, and maintain secure, scalable enterprise software applications using modern software engineering and Secure Software Development ( SecDevOps ) practices.
• Develop full-stack applications using ASP.NET Core, .NET Framework, Java, Python, and other modern programming languages and frameworks.
• Design, develop, optimize, and maintain relational database solutions using Microsoft SQL Server, Oracle Database, and other enterprise database technologies.
• Develop and maintain applications leveraging enterprise platforms including SharePoint and ServiceNow.
• Build, deploy, and maintain RESTful APIs and microservices architectures supporting distributed enterprise applications.
• Develop cloud-ready and containerized applications utilizing Docker and container orchestration platforms.
• Create, maintain, and optimize Dockerfiles and Infrastructure as Code (IaC) components supporting application deployment and container lifecycle management.
• Design and implement secure CI/CD pipelines supporting automated build, testing, deployment, and release processes.
• Configure, manage, and maintain self-hosted artifact repositories including Artifactory, Nexus Repository, NuGet, or similar repository management solutions.
• Apply secure coding standards, vulnerability remediation, code scanning, and software supply chain security throughout the software development lifecycle.
• Collaborate with DevSecOps engineers, systems administrators, architects, cybersecurity personnel, and product owners to deliver high-quality software solutions.
• Participate in architecture reviews, code reviews, design sessions, and technical planning activities.
• Troubleshoot and resolve complex software, database, and application integration issues.
• Develop automated unit , integration, regression, and performance tests.
• Produce technical documentation, system design documentation, API documentation, and operational procedures.
• Mentor junior developers and promote software engineering best practices across development teams.
• Support Agile software development methodologies, including Scrum, sprint planning, backlog refinement, and retrospectives.

Qualifications

• Bachelor's degree in Computer Science , Software Engineering, Information Technology, or a related technical discipline (or equivalent experience).
• 7+ years of professional software development experience designing and developing enterprise applications.
• C#
• Java
• Python
• Strong experience with Microsoft SQL Server, Oracle Database, database design, query optimization, stored procedures, and data modeling.
• Experience developing applications using SharePoint and/or ServiceNow platforms.
• Experience designing, developing, and maintaining RESTful APIs and enterprise web services.
• Experience developing applications for containerized environments using Docker.
• Experience creating and maintaining Dockerfiles and container build configurations.
• Experience developing and supporting microservices-based architectures.
• Experience implementing Secure Software Development Lifecycle (SSDLC) and DevSecOps practices.
• Experience configuring and maintaining artifact repositories including:
• Nexus Repository
• NuGet
• Experience with source control systems such as Git.
• Experience with CI/CD tools and automated deployment pipelines.
• Strong understanding of software design patterns, object-oriented programming, and software architecture principles.
• Experience performing code reviews, debugging, performance tuning, and application optimization.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent written and verbal communication skills.

About Xcelerate Solutions

Founded in 2009 and headquartered in McLean, VA, Xcelerate Solutions (www.xceleratesolutions.com) is one of America's fastest-growing companies. Xcelerate’s culture is defined by our diversified workforce of dynamic and versatile professionals, supported with growth and development opportunities that contribute to individual and company growth. This strong commitment to our employees has been recognized by our inclusion on the Washington Business Journal’s “50 Best Places to Work” list as well as being a “Great Place to Work” certified company with a 4.6 star, and a 99% CEO approval Glassdoor rating. Come find out why Xcelerate Solutions is one of the top DC Metro employers!

Equal Employment Opportunity and Pay Transparency

Xcelerate Solutions is an Equal Employment Opportunity/Affirmative Action Employer. We evaluate qualified applicants without regard to race, color, national origin, religion, age, equal pay, disability, veteran status, sex, sexual orientation, gender identity, genetic information, or expression of another protected characteristic. As part of this commitment to the full inclusion of all qualified individuals, Xcelerate provides reasonable accommodations if needed because of an applicant's or an employee's disability. Pay Transparency Notice: Xcelerate Solutions will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant.