Database Administrator - Required: TS/SCI w FSP

Job Title: Database Administrator
Location: Tysons, VA
Clearance Required: 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 a Database Administrator to support cloud-based data environments, data pipeline development, and operational maintenance activities within a mission-focused environment.
The ideal candidate will possess experience with Python, AWS, Apache Spark, relational databases, and Linux administration while supporting large-scale data processing and modernization efforts.
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Key Responsibilities
• Build and maintain data pipelines and data integration workflows.
• Utilize Python, SQL, Linux, and shell scripting to process and manage large datasets.
• Support cloud-based data environments using AWS services.
• Process and analyze data using Apache Spark and related technologies.
• Develop and maintain SQL queries and database solutions using PostgreSQL, Oracle, and MySQL.
• Analyze data in multiple formats including CSV, XML, JSON, Avro, and Parquet.
• Write and validate unit tests to support application reliability and code quality.
• Monitor system performance, storage utilization, and operational metrics.
• Support operations and maintenance (O&M), troubleshooting, and Tier 3 support activities.
• Support modernization, migration, and deployment activities for Sponsor applications and systems.
• Prepare technical briefings, reports, and recommendations for leadership and stakeholders.
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Required Skills & Experience
• Demonstrated experience building and managing data pipelines.
• Demonstrated experience with Python programming.
• Demonstrated experience with AWS cloud services.
• Demonstrated experience processing data using Apache Spark.
• Demonstrated experience with relational databases (PostgreSQL, Oracle, MySQL) and SQL queries.
• Demonstrated experience with Linux and shell scripting.
• Demonstrated experience analyzing data in formats such as CSV, XML, JSON, Avro, and Parquet.
• Demonstrated experience writing and validating unit tests.
• Strong troubleshooting, analytical, and communication skills.
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Desired Skills
• Experience using NiFi, Apache Airflow, or equivalent orchestration tools.
• Experience with Java or Scala.
• Experience administering EMR/Spark clusters and performance tuning Spark jobs.
• Experience supporting Hive, Iceberg, or similar SQL-access data technologies.
• Experience developing cloud-based security solutions.
• Experience supporting configuration management and release deployment processes.
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Preferred Certifications
• AWS Certified Solutions Architect – Associate
• AWS Certified Data Analytics – Specialty
• Oracle Database Certification
• CompTIA Security+
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Why Join QSS
At QSS, you’ll support mission-critical systems and advanced data environments while working alongside highly skilled technical teams in a collaborative environment.

Employee Benefits
• Competitive Compensation & Incentives
• Premium Medical, Dental & Vision Plans
• Generous PTO and Paid Holidays
• 401(k) with Company Match