Data Architect / DBA Full Time Opportunity- 5 days in the office Position Summary Seeking an experienced Data Architect / DBA to reverse engineer optimize and modernize complex database environments. The role requires the ability to analyze undocumented database instances infer business logic from schema structures and production-representative data reconstruct ER models and redesign architectures for maximum query efficiency scalability and maintainability. Candidate must also be able to read and understand Java services that interact with and maintain the database schema including ORM mappings and transactional behavior. Key Responsibilities Reverse engineer database schemas including tables indexes constraints views stored procedures functions and triggers. Analyze representative production data to identify entities relationships cardinality workflows and usage patterns. Reconstruct logical and physical ER models and document current-state architectures. Read and analyze Java application/services code to understand Database access patterns ORM mappings Transaction logic Schema maintenance behavior Redesign schemas and data models for Efficient joins Query optimization Scalability Data integrity Maintainability Optimize SQL execution plans indexing partitioning and storage strategies. Administer enterprise databases including backup/recovery replication HA/DR security monitoring upgrades and migrations. Produce technical documentation ERDs migration plans and architecture recommendations. Collaborate with engineering and infrastructure teams on database and application performance improvements. Required Qualifications 5+ years of experience in database administration data architecture or related roles. Strong expertise in relational database design SQL optimization and performance tuning. RDS experience Proven experience reverse engineering undocumented databases and legacy systems. Deep understanding of ER modeling normalization indexing and join optimization. Ability to infer business logic from schemas data and application behavior. Read-level Java proficiency with the ability to understand Spring / Spring Boot Hibernate / JPA JDBC Service-layer database interactions Experience with SQL Server AWS RDS (Managed MS SQL Server) or similar DBMS platforms. Familiarity with schema versioning CI/CD cloud database platforms and monitoring tools preferred. Strong analytical investigative and documentation skills. Desired Attributes Strong systems-thinking and problem-solving abilities. Comfortable working independently with minimal documentation. Detail-oriented with a focus on performance and scalability. Effective communicator capable of translating technical findings into actionable architecture improvements.