Senior Data Engineer - Secret Clearance, Onsite

National Capitol Contracting LLC; McLean (VA); On-site; USD 165,000 - 185,000; Full time

Job summary

National Capitol Contracting LLC seeks a Senior Data Engineer to design and manage enterprise data pipelines and analytics platforms. The role focuses on PostgreSQL administration, SQL development, Python automation, and Qlik Sense reporting to support decision-making.

Ideal candidates will drive data architecture, ensure data quality and governance, and mentor junior staff while delivering scalable BI solutions across Power BI, Tableau, and Qlik Sense environments.

Qualifications

• Active Secret clearance or higher at the time of application.
• Bachelor's degree in Computer Science, Information Systems, Engineering, Mathematics, or related technical field.
• Minimum of 9 years of experience in data engineering, database administration, BI, or enterprise analytics.
• Strong hands-on PostgreSQL DBA experience including backup/recovery, security, and performance tuning.
• Advanced SQL development including complex queries, stored procedures, views, indexing, and data transformation logic.
• Strong Python development for data engineering, automation, ETL/ELT processing, and data validation.
• Experience designing, developing, and maintaining ETL/ELT pipelines and automated workflows.
• Hands-on experience with Qlik Sense dashboards, applications, data models, and reporting solutions.

Responsibilities

• Design, build, and maintain scalable data pipelines and automated ETL/ELT processes.
• Integrate and transform data from multiple structured and unstructured sources.
• Primary PostgreSQL DBA responsible for installation, configuration, security, backup/recovery, monitoring, and performance optimization.
• Develop and optimize PostgreSQL databases, SQL queries, stored procedures, views, and database objects.
• Perform database performance tuning, capacity planning, indexing, and query optimization.
• Develop Python-based solutions for data ingestion, transformation, automation, validation, and reporting.

Skills

PostgreSQL DBA

SQL development

Python programming

Qlik Sense development

Data architecture

ETL/ELT

Data governance

Security best practices

Education

Bachelor's degree in Computer Science, Information Systems, Engineering, Mathematics, or related technical field

Tools

Qlik Sense

Power BI

Tableau

Job description

National Capitol Contracting LLC seeks a Senior Data Engineer to design and manage enterprise data pipelines and analytics platforms. The role focuses on PostgreSQL administration, SQL development, Python automation, and Qlik Sense reporting to support decision-making.

Ideal candidates will drive data architecture, ensure data quality and governance, and mentor junior staff while delivering scalable BI solutions across Power BI, Tableau, and Qlik Sense environments.