Backend Developer - BI & Data Engineering

Job Overview
Join a dynamic UK-based tech team seeking a highly experienced Senior Backend Developer with deep expertise in data engineering, BI, and backend development. This role offers the opportunity to work on cutting-edge analytics and data platforms, using tools like Apache Spark, Scala, and Databricks. You'll be part of a fast-paced environment that values clean code, efficient data pipelines, and innovative BI solutions that power strategic decisions.
As a valued member of the team, you’ll collaborate with global colleagues, contribute to critical backend services, and help shape robust data architecture. If you're passionate about big data, ETL processes, and BI tools – this is your chance to make an impact with a UK employer, from the comfort of your home in South Africa.Key Responsibilities

• Design, build, and maintain scalable ETL pipelines using Apache Spark and Scala.
• Implement and optimise data models within Data Lakes and relational databases.
• Develop backend components for BI platforms, supporting tools like Power BI, Databricks, and Starburst.
• Ensure high-quality, testable code using static analysis tools (Sonar, Fortify).
• Execute data validation and manage structured/unstructured datasets in distributed environments.
• Collaborate with DevOps on CI/CD integration to ensure seamless delivery processes.
• Contribute to architectural decisions and performance tuning of complex data systems.

Qualifications and Experience

• Minimum of 5 years’ experience in ETL implementation.
• At least 3 years of hands-on experience with Apache Spark and Scala.
• Minimum of 2 years working with BI tools (e.g., Power BI, Databricks, Starburst).
• Strong experience in data model design and working with Data Lakes (e.g., Apache Hive, AWS S3).
• Proven expertise in SQL and relational database systems.
• Experience in unit testing and code quality tools (e.g., Sonar, Fortify).
• Familiarity with CI/CD processes and Agile delivery environments.
• Equipment required: Personal laptop/desktop, reliable high-speed internet connection.