SQL Developer - Database Developer - SQL Analysis

На данный момент Junior Software Engineer / Database Develope.

Мои компетенции и опыт

Over the past few years, I’ve built strong experience in database management, SQL analysis, and backend data operations. My journey began with academic projects in university, where I worked on more than five database-focused applications using MySQL, PostgreSQL, and SQLite. These projects included inventory systems, student records platforms, e-commerce backends, and data visualization dashboards.

Later, I took on freelance work on Fiverr and other platforms, offering services in SQL query optimization, data analysis, and database troubleshooting. I’ve successfully completed many client projects that involved:

- Custom SQL reports and dashboards

- Normalization and optimization of existing databases

- ETL tasks and database migrations

- Stored procedures and triggers for business logic automation

Additionally, I finished a SQL & DBA certification course from Learnvern, where I learned advanced topics like database administration, indexing strategies, backups, and performance tuning.

Key Responsibilities:

- Writing and optimizing complex SQL queries

- Designing relational database schemas

- Analyzing large datasets for trends and insights

- Helping clients resolve database performance issues

- Ensuring data security, integrity, and consistency

KPIs:

- Query performance (execution time, resource usage)

- Project delivery time and client satisfaction

- System uptime and error rate for freelance deployments