Senior Database Designer
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Job Description
Senior Database Designer at Diné Source modernizing legacy applications into Oracle architecture for government systems.
Responsibilities:
- Lead the development of a unified database structure that integrates data from eight distinct legacy systems into a single Oracle-based architecture
- Design comprehensive database schema's using Oracle technologies, creating detailed entity-relationship diagrams and defining normalization strategies
- Establish secure data architecture incorporating row-, column-, and cell-level access controls while supporting replacement of sensitive identifiers such as Social Security Numbers
- Collaborate with software engineers, DevSecOps teams, and government stakeholders to ensure database structure supports modular application development and seamless incremental deployment
- Design, develop, and maintain Oracle 19c or newer database systems with advanced schema design techniques
- Implement relational database normalization, performance tuning, and indexing strategies that enable efficient real-time and batch processing
- Collaborate with cross-functional teams including software engineers, DevSecOps teams, and government stakeholders
- Participate in Agile ceremonies including backlog refinement and sprint planning processes
- Define and maintain data mappings between legacy and modernized structures to support incremental migration
- Support test data generation and guide integration of secure data migration pipelines using ETL processes and tools
Requirements:
- Bachelor's degree in computer science, Information Systems, Database Management, or related field
- Minimum 7 years of experience in senior database design and architecture roles
- Experience supporting government or defense agency systems preferred
- Security + CE/ IAT Level II certification
- Proficiency in Oracle 19c or newer database systems
- Advanced PL/SQL programming and optimization
- Strong experience with relational database normalization, performance tuning, and indexing
- Familiarity with data modeling, entity-relationship diagrams, and data dictionary creation
- Experience supporting or participating in ETL processes for data migration
- Understanding of data quality analysis and governance practices
- Understanding of database access control, encryption, and data masking practices
- Knowledge of Zero Trust security principles and federal compliance frameworks
- Experience with Oracle GoldenGate or other real-time data migration platforms.
Benefits:
- Professional certifications
- Public Trust / IT II Security clearance eligibility - Must be a US citizen.
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