Senior Software Engineer – Data Integration Libraries; Java​/Python

Transform technology into opportunity as a Software Developer Sr Principal pe what’s next for mission‑critical government projects while shaping what’s next for your engineering career.

The Senior Software Engineer will design, develop, and maintain backend libraries and services that transform diverse data formats into a common, reusable schema consumed by multiple applications across the organization. This is a hands‑on technical role focused primarily on Java development, with secondary responsibility for Python‑based components where needed. There is no UI work; the emphasis is on building robust libraries and integration services that can reliably ingest, interpret, and convert constantly changing data sources into a standardized internal model.

In addition to core development responsibilities, this role includes a system administration component. The engineer will help manage and optimize MongoDB services, work within a Linux ecosystem, and perform operational tasks such as upgrading servers, installing RPMs, monitoring services, and troubleshooting environment issues.

Key responsibilities include designing and implementing data ingestion and transformation logic, creating and maintaining shared libraries for common data formats, ensuring performance and scalability, and contributing to architectural decisions around data modeling and integration patterns. The role also involves collaborating through modern development practices, including Git‑based source control, code reviews, and continuous improvement of development workflows.

The ideal candidate has deep experience in Java (and familiarity with Python), a strong understanding of working with varied data formats (e.g., JSON, XML, CSV, and custom structures), and practical experience administering Linux‑based systems and MongoDB in production environments. Strong problem‑solving skills, attention to detail, and a willingness to engage in both development and operational tasks are critical for success in this role.

• Education:
  
  Technical Training, Certification(s) or Degree
• Experience:
  
  8+ years of related experience
• Technical skills:
  Java, Python, Gradle, JSON, XML, CSV, custom data formats, MongoDB (development and administration), MongoDB Java/Python drivers, Linux (system administration and shell scripting), RPM‑based package management (yum, dnf, rpm), service management (systemd), Git (branching, pull requests, code reviews)
• Security clearance level: TOP SECRET
• US citizenship required

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

• Growth: AI‑powered career tool that identifies career steps and learning opportunities
• Support:
  An internal mobility team focused on helping you achieve your career goals
• Rewards:
  Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
• Flexibility:
  Full‑flex work week to own your priorities at work and at home
• Community:
  Award‑winning culture of innovation and a military‑friendly workplace

Explore a career in software development at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your dedication to advancing innovation.

The likely salary range for this position is $162,037 - $219,227. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and…