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• Proficient in SQL and its variations, such as PostgreSQL, MySQL or Oracle
• Experience writing SQL queries and optimising query performance
• Good understanding of relational database concepts and principles
• Knowledge of database design
• Experience in using database management tools, such as SQL Server Management Studio
• Familiarity with database administration tasks
• Experience working with database programming languages, such as PL/SQL or T-SQL
• Knowledge of data security and best practices
• Experience with ETL processes and data integration
• Collaborating with different developer teams to ensure technical feasibility
• Experience writing well-documented, clean code
• Analytical mindset and good problem-solving skills
• Ability to confidently communicate in English

Other nice to have skills

• Good soft skills: Teamwork, communication, time management, problem-solving and critical thinking
• Experience working with non-relational databases, such as NoSQL, MongoDB or Cassandra
• Familiar with data warehouse concepts and technologies
• Enjoys keeping up to date with emerging technologies and trends in SQL development

Years of experience

• Entry-level SQL developer: 0 years
• Junior SQL developer: 1-2 years
• Mid level SQL developer: 2-6 years
• Senior SQL developer: 6-15+ years