Database designe and implementation

• Designing normalized relational databases (up to 3NF) to minimize redundancy and ensure data integrity.

• ERD and schema design from simple use-case descriptions.

• Optimized queries and indexing strategies for high performance.

• NoSQL database modeling with MongoDB for flexible, document-based structures.

• Implementation of relationships, constraints, and validation rules.

• Data migration, transformation, and integration between SQL & NoSQL systems.

• Best practices for security, scalability, and long-term maintainability.

Why choose me?

• Proven experience in delivering optimized schemas for complex systems (e.g., voting systems, games, business management apps).

• Ability to translate real-world requirements into efficient database structures.

• Strong focus on performance optimization even in resource-limited environments.

• Clean documentation and long-term support.

Whether you need a highly normalized SQL database for transactional systems or a flexible MongoDB schema for modern applications, I can deliver a database that is both efficient and future-proof.