Principal Full Stack Software Engineer

Principal Full Stack Software Engineer

Iron EagleX (IEX), a wholly owned subsidiary of General Dynamics Information Technology (GDIT), delivers agile IT and Intelligence solutions. Combining small-team flexibility with global scale, IEX leverages emerging technologies to provide innovative, user-focused solutions that empower organizations and end users to operate smarter, faster, and more securely in dynamic environments.

Iron EagleX is seeking a Principal Full Stack Software Engineer to join our dynamic team in Crystal City, VA. This role designs, develops, deploys, and sustains innovative software and data capabilities as a member of a fast-paced, multidisciplinary team. You will work across the application stack to build analytic frontends, production APIs, data integration services, reporting interfaces, and supporting data layers that transform complex data and analytic methods into practical, reliable capabilities supporting critical customer requirements.

As a Principal Full Stack Software Engineer, you will quickly turn complex data, analytic requirements, and emerging concepts into usable software capabilities that deliver critical insights to end users. You will work closely with analysts, data scientists, and other technical specialists to solve difficult technical problems, rapidly prototype new applications and workflows, and transition successful solutions into repeatable, maintainable, and operational software capabilities.

Job Duties (Include But Are Not Limited To):

• Develop clean, maintainable, and efficient Python code while adhering to best practices and coding standards.
• Design, build, and maintain data analytics web applications, dashboards, and user-facing analytics experiences using Streamlit or similar technologies.
• Develop interactive data products that enable users to explore, visualize, filter, and interpret complex datasets.
• Build and integrate backend services, APIs, and data access layers using Python frameworks such as FastAPI or similar technologies.
• Support data ingestion, transformation, validation, and aggregation capabilities to help ensure accurate and timely analytics.
• Work with relational databases such as Postgres and MySQL, supporting data integrity, performance, and efficient query design.
• Collaborate with data analysts, data engineers, and stakeholders to understand requirements and deliver practical analytics solutions.
• Create reusable software components and data services that support reporting, visualization, workflow automation, and operational analytics.
• Support CI/CD pipelines and container-based deployments, including Docker-based environments, to enable repeatable builds and reliable releases.
• Implement and maintain version control using Git to support collaboration and code management.
• Apply software engineering best practices to improve scalability, maintainability, testability, and reliability of analytics applications.
• Ensure developed solutions meet required security, quality, and compliance standards.
• Contribute to all stages of the software development life cycle, from concept and design to testing, deployment, sustainment, and enhancement.

Required Skills:

• Ability to work effectively both collaboratively and independently in a fast-paced environment.
• Experience writing clean, maintainable, and efficient Python code.
• Hands-on experience developing software applications that support data analytics, reporting, dashboards, or operational data products.
• Experience with front-end development using Streamlit or similar technologies for interactive analytics applications.
• Working knowledge of web technologies, RESTful APIs, containerization, backend services, and user interface development.
• Experience building and maintaining backend solutions using Python frameworks such as FastAPI or similar tools.
• Familiarity with relational database systems such as PostgreSQL and MySQL.
• Experience writing SQL queries to support analytics, reporting, and application functionality.
• Understanding of data quality, data validation, data transformation, and basic data modeling concepts.
• Experience with Docker; Kubernetes experience is a plus.
• Familiarity with CI/CD pipelines and repeatable deployment practices.
• Proficiency in implementing and maintaining version control using Git.
• Hands-on experience with full stack development and understanding of the software development life cycle.

What You'll Need To Succeed:

• Clearance: Current TS/SCI Clearance with active or ability to obtain CI Polygraph is required
• Experience: 8+ years of related experience
• Education: Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience)
• Role requirements: Work is onsite in Crystal City, VA with CONUS travel of up to 60-90 consecutive days annually
• Due to US Government Contract Requirements, only US Citizens are eligible for this role

GDIT IS YOUR PLACE 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, competitive pay and paid time off
• Community: Award-winning culture of innovation and a military-friendly workplace

Own Your Opportunity Explore a career at GDIT and you'll find endless opportunities to grow alongside colleagues who share your passion for the mission and delivering results.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

The likely salary range for this position is $140,250 - $189,750. 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.

Scheduled Weekly Hours: 40

Travel Required: 10-25%

Telecommuting Options: Onsite

Work Location: USA VA Arlington

Additional Work Locations:

Total Rewards at GDIT:

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 a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans