Senior Backend Software Engineer

Ennoble First • Gaithersburg, MD

4h • Onsite

About The Position

This position supports a newly awarded five-year effort delivering modern, mission-critical software capabilities to a national security customer. The program leverages Agile development, DevSecOps practices, and cloud-native technologies to build and enhance scalable enterprise solutions supporting critical mission operations. Engineers on this effort will work with cross-functional teams to design, develop, and deploy impactful capabilities while helping shape the architecture and technical direction of a long-term, high-visibility program. We are seeking a Senior Backend Software Engineer to support the development of scalable backend services for a high-visibility application used across the organization for data analysis, reporting, and operational decision-making. This role focuses on designing and building backend systems, developing RESTful APIs, integrating data sources, and ensuring system performance and reliability within a Linux-based environment. The ideal candidate has strong backend development experience, a solid foundation in object-oriented programming, and the ability to work independently on complex technical challenges. This individual will contribute to system design, support mission-critical functionality, and help drive delivery of reliable, high-performing applications.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field with 8–12 years of experience; or a Master's degree with 6–10 years of experience
• Active TS/SCI clearance with the ability to successfully pass a Polygraph
• Strong professional experience developing backend applications in Java or Python
• Proven ability to design and develop RESTful APIs that support scalable application functionality
• Solid SQL experience, including writing and optimizing queries across relational databases
• Confident working in Linux-based environments
• Ability to work independently and drive solutions to moderately complex and complex technical challenges

Nice To Haves

• Experience with Apache Airflow or similar workflow orchestration technologies
• Experience with geospatial data and querying (e.g., PostGIS)
• Experience with Spring Boot, Django, or similar backend frameworks
• Experience with CI/CD pipelines (GitLab, Jenkins, etc.)
• Familiarity with containerization (Docker, OpenShift, Kubernetes)
• Exposure to cloud environments (AWS or Azure)
• Experience working in Agile development environments

Responsibilities

• Design, develop, test, and maintain backend services using Java or Python
• Design and implement RESTful services to support application functionality and integrations
• Apply strong object-oriented design principles to build scalable and maintainable systems
• Write and optimize SQL queries to support application functionality and performance
• Coordinate with external teams to understand data sources, interfaces, and access patterns, and translate requirements into backend integrations
• Participate in technical design discussions and contribute to backend architecture decisions
• Develop, deploy, and troubleshoot applications within Linux-based environments
• Diagnose and resolve issues across application and database layers
• Participate in code reviews and ensure adherence to engineering standards

Benefits

• The Ennoble First pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior