Software Engineer

NS2 Mission; Chantilly (VA); On-site; USD 150,000 - 190,000; Full time

Job summary

NS2 Mission in Chantilly, VA is seeking a Software Engineer to design, build, and evolve secure, scalable applications for Intelligence Community customers. You will work on full-stack solutions, backend services in Python, RESTful APIs, and relational databases in a collaborative, Agile environment.

The role requires a Bachelor's in a technical field, 10+ years of enterprise software experience, and strong Python/Angular skills.

Qualifications

• Bachelor's degree in a technical discipline or equivalent experience.
• 10+ years of professional experience delivering enterprise software solutions.
• Advanced proficiency in Python for backend development.
• Expertise with Angular or comparable front-end frameworks.
• RESTful APIs design and integration in distributed apps.
• Experience with Oracle and relational databases.
• Knowledge of PostgreSQL/SQL Server/MySQL.
• Proficiency with Linux/Unix environments.
• Strong software engineering practices: version control, testing, peer reviews, security.
• Familiarity with Agile and DevOps practices.

Responsibilities

• Lead the design and development of scalable full-stack applications.
• Architect and implement backend services using Python and modern frameworks.
• Develop and integrate RESTful APIs for interoperability.
• Design and optimize relational databases for performance and maintainability.
• Collaborate with architects, engineers, and stakeholders to shape technical approaches.
• Diagnose defects, integration challenges, and performance issues to improve reliability.
• Provide input through design reviews and code reviews while promoting best practices.
• Contribute to planning, testing, deployment, and sustainment of applications.
• Support Agile delivery and drive continuous improvement in processes.

Skills

Python Backend

Angular

REST APIs

Oracle DB

PostgreSQL

SQL Server

MySQL

Linux/Unix

Version control

Automated testing

Secure development

Agile methods

CI/CD

Education

Bachelor's degree in CS/Software Eng

Tools

FastAPI

SQLAlchemy

AWS

Docker

Kubernetes

Git

Jenkins

Terraform

Elasticsearch/OpenSearch

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Software Engineer

Contract Professional Chantilly, VA, US

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

Key Responsibilities

• Lead the design and development of scalable full-stack applications from initial requirements through deployment and sustainment.
• Architect and implement backend services usingPython 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.

Required Qualifications

• 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.

Preferred Qualifications

• Hands-on development of APIs using FastAPI.
• Working knowledge of SQLAlchemy 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, DevOps 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, OpenSearch, 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

Please be aware many of our positions require the ability to obtain or maintain a U.S security clearance which requires U.S citizenship.

We win with inclusion

NS2 Mission's culture of inclusion, focus on health and well-being, and flexible working models help ensure that everyone - regardless of background - feels included and can run at their best. At NS2 Mission, we believe we are made stronger by the unique capabilities and qualities that each person brings to our company, and we invest in our employees to inspire confidence and help everyone realize their full potential. We ultimately believe in unleashing all talent and creating a better world.

NS2 Mission is committed to the values of Equal Employment Opportunity and provides accessibility accommodations to applicants with physical and/or mental disabilities.

Qualified applicants will receive consideration for employment without regard to their age, race, religion, national origin, ethnicity, age, gender (including pregnancy, childbirth, et al), sexual orientation, gender identity or expression, protected veteran status, or disability, in compliance with applicable federal, state, and local legal requirements.