Informatica, SQL, Unix

An ETL (Extract, Transform, Load) developer's job is todesign, build, and maintain processes that move data from various sources into a data warehouse.Key responsibilities include extracting data, cleaning and transforming it for a specific purpose, and loading it into a target system, while also ensuring data quality, optimizing performance, and collaborating with stakeholders.Essential skills include strong SQL, knowledge of ETL tools like SSIS or Informatica, database management, and problem-solving abilities.

Core responsibilities

• Design, develop, and maintain ETL processes:Create and manage automated workflows that extract data from different sources, transform it into a usable format, and load it into a data warehouse or database.
• Ensure data quality and integrity:Implement checks and validation to clean, standardize, and verify data accuracy throughout the process.
• Collaborate with stakeholders:Work with business analysts and other teams to understand their data requirements and deliver solutions that meet business needs.
• Optimize performance:Fine-tune SQL queries, reduce data load times, and analyze bottlenecks to improve the efficiency of ETL processes.
• Troubleshoot and monitor:Identify and resolve issues in the ETL pipeline to ensure reliability and efficiency.
• Maintain documentation:Create and update documentation for ETL processes and BI solutions.

Key skills and qualifications

• Technical skills: SQL:Strong proficiency, including query performance tuning and optimization.
• ETL Tools:Experience with tools such as Informatica, SSIS, or Talend.
• Scripting:Proficiency in languages like Python, Perl, or Shell scripting is often beneficial.
• Databases:Experience with relational databases (e.g., PostgreSQL, MySQL, Oracle) and understanding of database architecture.
• Analytical and problem-solving skills:Ability to analyze complex data structures and solve problems.
• Communication skills:Ability to explain complex technical concepts to non-technical audiences.