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Jr Full Stack Developer Security Clearance

Job in Tysons, Fairfax County, Virginia, USA
Listing for: Quantum Science Solutions
Full Time position
Listed on 2026-02-10
Job specializations:
  • Software Development
    Full Stack Developer, Cloud Engineer - Software
Job Description & How to Apply Below
Position: Jr Full Stack Developer with Security Clearance
Opportunity via QSSHire | Talent-as-a-Service Recruiting Role:
Junior Full Stack Developer

Location:

Tysons, VA (On-site as required) Clearance:
Active TS/SCI with Full Scope Poly Required Rate:
Open Are You a Junior Full Stack Developer Who Thrives in Mission-Critical Web Development? QSSHire is partnering with a secure customer to identify a Junior Full Stack Developer to support mission-critical functions through modern software development. This opportunity is ideal for a hands-on developer who can contribute across the full stack, supporting front-end user interfaces, backend application services, RESTful APIs, databases, and cloud-native deployments in a secure Agile environment.

You’ll join a collaborative team working closely with a Lead Engineer and fellow team members to support the continued development and sustainment of web applications, delivering enhancements, integration support, testing, and deployment assistance. In This Role, You’ll:
• Work with the Lead Engineer and team members to design, develop, test, and deliver software solutions in an Agile environment.
• Contribute to full stack development across: o Frontend end-user interfaces o Backend application services o Data layers
• Translate functional requirements into technical implementations.
• Develop, consume, and integrate with RESTful APIs.
• Support integrations with other software systems and databases.
• Participate in code reviews and help enforce development best practices.
• Assist with testing and deployment activities and help maintain deployed applications.
• Support development efforts aligned with Section 508 accessibility compliance.
• Contribute to writing and maintaining automated tests. You’ll Succeed Here If You Have:
• Active TS/SCI with Full Scope Polygraph (FSP) (required)
• Experience with front-end development using modern JavaScript frameworks.
• Experience developing backend services and integrating RESTful APIs.
• Experience with relational and non-relational databases.
• Experience developing, deploying, and maintaining systems on cloud platforms such as AWS and/or Azure.
• Experience working in an Agile / Scrum team environment.
• Experience building and maintaining web applications using: o React with Type Script (or comparable frameworks such as Vue or Angular) o Python (or another modern backend language) for backend services and RESTful API development o SQL and/or No

SQL databases o AWS services such as Lambda, Dynamo

DB, RDS, S3 o CI/CD pipelines and Dev Ops workflows o Automated testing practices Bonus Points If You Have:
Hands-on experience supporting CI/CD pipeline implementation and maintenance
• Experience supporting 508 compliance/accessibility testing
• Familiarity with deployment/sustainment support in secure production environments Why QSSHire? As a modern Talent-as-a-Service recruiting partner, QSSHire connects top cleared professionals with impactful, secure roles. We emphasize mission alignment, transparency, and purpose-driven career opportunities, because your next role should be as meaningful as your expertise.
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