Software Engineer; Expert

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Contract Professional Chantilly, VA, US

9 days ago Requisition

Salary Range: $ To $ Annually

Join NS2 Mission and help shape the software capabilities behind critical national security missions. As an Expert
Software Engineer in Chantilly, VA
, you'll design, build, and evolve secure, scalable applications supporting Intelligence Community customers.

• Lead the design and development of scalable full-stack applications from initial requirements through deployment and sustainment.
• Architect and implement backend services using
  
  Python and modern application frameworks.
• Develop and integrateRESTful APIs to support system interoperability, data exchange, and distributed application functionality.
• Design and optimize relational database solutions with a focus on performance, scalability, and maintainability.
• Partner with architects, engineers, and mission stakeholders to evaluate requirements, shape technical approaches, and deliver effective solutions.
• Diagnose complex software defects, integration challenges, and performance issues, implementing solutions that improve system reliability.
• Provide technical input through design reviews, peer code reviews, and engineering discussions while promoting sound development practices.
• Contribute to technical planning, estimation, testing, deployment, and long-term application sustainment.
• Support Agile delivery activities and help drive continuous improvement across development processes and engineering practices.
• Ensure application solutions meet established security, performance, scalability, and maintainability objectives.

• Bachelor's degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline (or equivalent combination of education and experience).
• Approximately 10+ years of professional experience designing and delivering enterprise software solutions.
• Advanced proficiency in Python for backend and application development.
• Expertise with Angular or comparable modern front-end frameworks.
• Demonstrated ability to design, develop, and integrate RESTful APIs within distributed applications.
• Hands-on knowledge of Oracle databases, including SQL development, application integration, and data access.
• Background working with relational database technologies such as PostgreSQL, SQL Server, or MySQL.
• Proven ability to develop and maintain applications within Linux/Unix environments.
• Solid understanding of software engineering practices, including version control, automated testing, peer reviews, and secure development principles.
• Familiarity with Agile methodologies and experience contributing across the full software development lifecycle.
• Strong analytical, troubleshooting, and technical problem-solving capabilities.

• Hands-on development of APIs using FastAPI.
• Working knowledge of SQL Alchemy or comparable ORM technologies for application-to-database integration.
• Background designing and deploying cloud-based applications, particularly within AWS environments.
• Understanding of CI/CD pipelines, Dev Ops practices, and automated software delivery.
• Exposure to Docker, Kubernetes, microservices, and other distributed application technologies.
• Proficiency with development and infrastructure tools such as Git, Jenkins, Terraform, or similar platforms.
• Knowledge of Elasticsearch, Open Search, or comparable search and analytics technologies.
• Demonstrated ability to provide technical direction, mentor fellow engineers, or contribute to development standards.
• Previous support of Intelligence Community or Department of Defense software development programs.

Position Clearance Requirement:

TS/SCI with an FSP

Salary and Benefits Information:

The salary range for this position is $ to $ . The proposed range is intended as a general guideline. Final compensation will be determined based on qualifications, experience, location, and contractual considerations and may fall outside of the stated range. We offer a great…