Database Engineer

Join to apply for the Database Engineer role at Echelon Services, LLC
.

• TS/SCI with CI Polygraph. Investigation or CV date within 5 years

• Design, implement, and maintain Postgre
  
  SQL and Anzo Graph database environments, including schema design, data modeling, performance tuning, and query optimization.
• Develop and implement data loading strategies for efficient ingestion into Anzo Graph.
• Develop and implement data backup and recovery strategies for Postgre
  
  SQL databases.
• Monitor and tune Postgre
  
  SQL and Anzo Graph performance, ensuring optimal query execution and resource utilization.
• Develop and implement best practices for Postgre
  
  SQL and Anzo Graph security, including access control and data encryption.
• Design and implement security policies, user access controls, and encryption methods to protect sensitive data.
• Troubleshoot and resolve Postgre
  
  SQL and Anzo Graph database issues, including performance bottlenecks and data inconsistencies.
• Perform routine database administration tasks, including installation, configuration, patching, upgrades, and migrations for Postgre
  
  SQL and Anzo Graph.
• Work closely with the engineering team and other stakeholders to support their analytical needs and provide guidance on Postgre
  
  SQL and Anzo Graph usage.
• Participate in scrum meetings, architecture reviews, and code reviews.
• Design, develop, and maintain Extract, Transport, and Load (ETL) pipelines to extract, transform, and load data from various sources into Anzo Graph and Postgre
  
  SQL.

• Conduct performance analysis, tuning, and query optimization for both Postgre
  
  SQL and Anzo Graph.
• Analyze execution plans and database resource usage, and make recommendations for improvements.
• Configure and tune database parameters to achieve optimal performance, especially for large datasets.

• Collaborate with application developers and data architects to design and implement new database schemas for both relational and graph data models.
• Write and optimize complex SQL queries for Postgre
  
  SQL and SPARQL/Cypher queries for Anzo Graph.
• Support data migration, Extract, Transform, Load (ETL), and Extract, Load, Transform (ELT) processes to facilitate data movement between systems.
• Ensure data quality and integrity throughout the ETL process.
• Develop and maintain documentation for data pipelines and database schemas.

• Manage Postgre
  
  SQL and Anzo Graph deployments on premises, in containers (Docker, Kubernetes), and in the cloud (AWS, Azure).
• Develop and implement automation scripts using languages like Python or Bash, and tools like Terraform or Ansible to manage database infrastructure as code.
• Maintain database documentation, including design specifications, configurations, and procedures.

• Active TS/SCI with CI Polygraph is required.
• BS degree in Computer Science, Information Technology, or a related field.
• 10+ years of experience as a Database Engineer or similar role.
• Relevant IAT Level II certifications (Data+, Security+, Network+, CCSP, etc.).
• Experience with other graph databases (Neo4j, Amazon Neptune, etc.).
• Strong proficiency with schema design, query optimization, security, and performance tuning.
• Experience with data governance and data quality practices.
• Experience with data warehousing concepts, data modeling techniques, and database design principles.
• Experience with ETL tools and techniques.
• Strong SPARQL/SQL skills and experience with query optimization.
• Experience with scripting languages such as Python or Shell.
• Excellent problem‑solving and analytical skills.