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Systems Engineer

Quantum Science Solutions

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

Job Title: Systems Engineer
Location: On-site McLean, VA
Clearance Required: Active TS/SCI with Full Scope Polygraph
Company: Quantum Science Solutions (QSS)
Rate: Open
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Position Overview
Quantum Science Solutions (QSS) is seeking an experienced Systems Engineer to support a mission-critical federal program in McLean, VA. This role operates within a secure Agile DevSecOps environment and is responsible for the design, development, integration, deployment, and sustainment of complex cloud-based systems and data platforms.
The Systems Engineer will provide hands-on technical expertise across full-stack development, cloud infrastructure, data engineering, security compliance, and system operations, ensuring systems remain resilient, scalable, secure, and compliant throughout their lifecycle.
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Key Responsibilities
• Design, develop, and sustain cloud-based systems using enterprise SecDevOps toolchains supporting CI/CD pipelines and microservices architectures.
• Perform full-stack application development using Vue (JavaScript), FastAPI (Python), and PostgreSQL hosted on AWS RDS.
• Develop and manage infrastructure-as-code solutions for cloud networking, service administration, and application deployment.
• Deploy, operate, and maintain web services and applications in cloud environments.
• Implement cloud infrastructure resiliency, high availability, and on-demand scaling strategies.
• Engineer user interfaces and establish usability and accessibility standards across applications.
• Architect and develop large-scale data solutions supporting efficient search, analytics, and reporting capabilities.
• Perform entity resolution across large and continuously growing data sets.
• Support Assessment and Authorization (A&A) activities and system accreditation efforts.
• Manage data set permissions and access controls in accordance with security requirements.
• Ensure IT security compliance through auditing, monitoring, and continuous assessment.
• Develop and implement configuration management plans and processes for software applications and databases.
• Develop and deploy containerized applications using Podman.
• Operate and maintain systems across development and production environments, including FidOS and CLSE.
• Provide operations and maintenance support for applications, databases, and cloud infrastructure.
• Resolve defects, implement enhancements, and evolve system capabilities in support of mission requirements.
• Perform continuous monitoring of system functionality and data ingestion during business hours.
• Maintain Interface Control Documents (ICDs) defining data ingestion standards and allowable schemas.
• Develop and maintain system documentation, user guides, and training materials.
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Mandatory Skills & Experience
• Demonstrated experience in software design and development using enterprise SecDevOps tools.
• Strong experience supporting CI/CD pipelines and microservices on cloud infrastructure.
• Full-stack development experience using Vue (JavaScript), FastAPI (Python), and PostgreSQL (AWS RDS).
• Experience implementing infrastructure-as-code for cloud networking and services.
• Experience deploying, operating, and maintaining cloud-based web services.
• Experience designing resilient, scalable, and highly available cloud systems.
• Experience architecting and developing large-scale data solutions.
• Experience performing entity resolution across large data sets.
• Experience supporting system accreditation and A&A processes.
• Experience managing data set permissions and access controls.
• Experience with IT security compliance, auditing, and monitoring.
• Experience developing and implementing configuration management processes.
• Experience working with operating systems including FidOS and CLSE.
• Experience developing containerized applications using Podman.
• Experience working in Agile development environments.
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Education Requirement
• Bachelor’s degree in Systems Engineering, Computer Science, Information Systems, or a related technical discipline.
• Equivalent professional experience may be substituted on a year-for-year basis.
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Preferred Skills
• Cloud architecture or cloud services certification.
• Experience operating and maintaining systems in highly secure environments.
• Experience supporting systems on JWICS.
• Experience ingesting data records into software applications.
• Experience handling exceptional data records and safeguarding sensitive information.
• Experience developing digital content and documentation using platforms such as Confluence.
• Experience designing and developing AI/ML or deep learning solutions at scale.
• Experience using analytics and quality assurance platforms such as Sigma and Analytic Workbench.
• Experience deploying applications using Kubernetes or similar orchestration platforms, including AWS EKS.
• Experience developing applications using standardized enterprise templates.
• Experience using enterprise tools to support A&A processing and data permission management.
• Experience working with Sponsor-developed operating systems including FidOS and CLSE.
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Why Join QSS?
At QSS, you’re not just filling a role, you’re shaping mission-critical solutions that keep our nation secure. We invest in your growth, foster innovation, and reward technical excellence.
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Employee Benefits
• Competitive Compensation & Performance Bonuses
• Premium Medical, Dental & Vision Insurance
• Generous Paid Time Off (PTO) and Federal Holidays
• 401(k) with Company Matching
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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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