Mid-Level Backend Software Engineer

Ennoble First Inc.; Washington (District of Columbia); On-site; USD 105,000 - 125,000; Full time

Job summary

Ennoble First Inc. is seeking a Backend Software Engineer to support the development of core backend services for a critical data-driven application. The role demands expertise in Java or Python and RESTful APIs, with a strong focus on scalability within Linux environments. Required qualifications include a Bachelor's degree in a related field and active TS/SCI clearance. The ideal candidate will join a collaborative team, working closely to enhance mission-critical capabilities across various projects.

Qualifications

• 4–8 years of experience in software development or 2–6 years with a Master's degree.
• Active TS/SCI clearance and ability to pass a Polygraph.
• Experience developing object-oriented applications in Java or Python.

Responsibilities

• Design, develop, test, and maintain backend application components.
• Develop and maintain RESTful services for application functionality.
• Write and modify SQL queries to support application functions.

Skills

Object-oriented programming

Java

Python

RESTful APIs

SQL queries

Linux-based environments

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Master's degree in Computer Science, Software Engineering, or related field

Tools

Apache Airflow

Spring Boot

Django

Docker

AWS

Azure

Job description

Location: Gaithersburg, Maryland; Alexandria, VA; Chantilly, VA; Aurora, CO; St. Louis, MO; Tucson, AZ

Clearance: Top Secret/SCI with the ability to successfully pass a Polygraph

Schedule: Full Time

Travel: Yes, 10% of the time

Remote: No Remote

Company Overview

We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning and impact on the world around us, but also on us, and that's important. Ennoble First is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver.

Program Overview

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.

Position Overview

We are seeking a Backend Software Engineer to support the development and maintenance of core backend services for a high-visibility, data-driven application used across the organization for analytics and reporting. This role focuses on building scalable services, developing RESTful APIs, and supporting data-driven functionality within a Linux-based environment.

The ideal candidate has experience with object-oriented programming, backend development, and working with data in application environments. This individual will contribute to system performance, reliability, and ongoing enhancements while supporting mission-critical capabilities.

Primary Responsibilities

• Design, develop, test, and maintain backend application components using Java or Python
• Develop and maintain RESTful services to support application functionality and system integrations
• Apply object-oriented design principles to build scalable and maintainable systems
• Write and modify SQL queries to support application functionality and data retrieval
• Collaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems
• Develop and troubleshoot applications within Linux-based environments
• Implement backend logic for data transformation, processing, and system workflows
• Identify, debug, and resolve application-level defects and performance issues
• Follow coding standards, participate in code reviews, and support documentation efforts

Required Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master's degree with 2–6 years of experience
• Active TS/SCI with the ability to successfully pass a Polygraph
• Professional experience developing object-oriented applications in Java or Python
• Hands‑on experience building and maintaining RESTful APIs
• Basic to moderate experience with SQL capability, including writing queries and working with relational databases
• Working knowledge of Linux-based environments
• Ability to work independently on defined tasks within established technical frameworks and deliver reliable results

Desired Qualifications

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

Pay Range

$105,000–$125,000

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This employer participates in E-Verify. E-Verify is an Internet-based system that allows businesses to determine the eligibility of their employees to work in the United States.

Equal Employment Opportunity

Ennoble First is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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