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Software Developer (Systems Software)

Quantum Science Solutions

Posted today
Intel Agency (NSA, CIA, FBI, etc)
Mid Level Career (5+ yrs experience)
Unspecified
Full Scope Polygraph
IT - Software
McLean, VA (On-Site/Office)

Opportunity via QSSHire | Talent-as-a-Service Recruiting
Role: Software Developer (Systems Software)
Location: McLean, VA (On-site as required)
Clearance: Active TS/SCI with Full Scope Poly Required
Rate: Open
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Are You a Software Developer Who Thrives Building Modern Web Applications and Cloud-Native Services?
QSSHire is partnering with a secure customer to identify a Software Developer (Systems Software) to support application development and deployment packaging for mission-critical systems.
This opportunity is ideal for a hands-on developer experienced in modern JavaScript/TypeScript frameworks, backend API development using Node.js, and containerized deployments in AWS cloud environments.
You’ll join a collaborative team supporting the development, sustainment, and modernization of web applications and microservices, ensuring system reliability, performance, and long-term maintainability in a secure, high-impact environment.
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In This Role, You’ll:
• Develop and maintain modern web applications using JavaScript and TypeScript frameworks such as Angular, React, or Vue.
• Design and implement RESTful APIs and backend services using Node.js frameworks.
• Build responsive front-end user interfaces using HTML5, CSS3, and modern JavaScript (ES6+).
• Develop scalable microservices architectures supporting distributed applications.
• Design and optimize relational database schemas and queries.
• Support production databases including PostgreSQL and MySQL.
• Utilize ORM frameworks such as Prisma or Sequelize for application data access.
• Build and maintain containerized applications using Docker.
• Support application deployment and operations within AWS cloud environments.
• Apply web application security best practices and usability principles.
• Utilize Git version control in collaborative development environments.
• Debug, test, and troubleshoot complex application issues across development and production systems.
• Support application packaging and deployment processes to maintain system sustainability and reliability.
• Contribute to technical documentation, architecture discussions, and knowledge-sharing across the development team.
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You’ll Succeed Here If You Have:
• Demonstrated experience developing modern web applications using JavaScript/TypeScript frameworks such as Angular, React, or Vue.
• Experience developing backend APIs and services using Node.js frameworks.
• Strong proficiency with HTML5, CSS3, modern JavaScript (ES6+), and TypeScript.
• Experience working with CSS preprocessors such as Sass.
• Experience designing and implementing RESTful APIs and microservices architectures.
• Experience working with SQL databases including schema design, query optimization, and performance tuning.
• Experience supporting PostgreSQL and MySQL production environments.
• Experience utilizing ORM frameworks such as Prisma or Sequelize.
• Experience with containerization technologies such as Docker.
• Familiarity with AWS cloud services and cloud-native development patterns.
• Strong understanding of web application security best practices and usability principles.
• Experience using Git in collaborative development workflows.
• Strong problem-solving skills including debugging, testing, and troubleshooting complex applications.
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Bonus Points If You Have:
• Experience working with ElasticSearch
• Familiarity with Infrastructure as Code tools such as Terraform or CloudFormation
• Experience working with monitoring and observability tools
• Experience working with geospatial libraries
• Experience modernizing or migrating legacy applications
• Working knowledge of CI/CD pipelines and build automation
• Experience integrating with data lake architectures or data-intensive applications
• Experience working with J2EE applications and containers
• Experience with Public Key Infrastructure (PKI)
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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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About Us
Quantum Science Solutions is traditional in the sense that it was built with core foundations based on honesty and integrity. We take great pride in all of our efforts and projects, we are proud to serve the front lines of cyber defense. We challenge our team members frequently and thrive on the motto “One for all, all for one”. Here at QSS, we invite individuals who think outside of the box and are mentally stimulated by complex problems in the fast paced world of cyber and technology. Our collaborative work environment allows you to think freely and develop iron clad solutions for our customers. At QSS, your ideas and designs are not only heard but are recognized and rewarded. We support you and will provide you with the resources needed to fuel innovations and creativity. Imagine, you are working on cyber integration concept and it turns into fully funded project by a federal agency. Join the QSS team where rather than making a difference, we are the difference

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Job Category
IT - Software