Role : Data Engineer
Location : London (2 or 3 days in a week)
Employment : Fulltime (Sponsorship not available)
Key Responsibilities
- Design, develop, and maintain robust, scalable ETL/ELT pipelines using Azure Data Factory (ADF)
- Optimizing SQL queries, stored procedures, and functions for data transformation and performance tuning
- Own end-to-end delivery of data engineering tasks — from requirement gathering to deployment and support
- Mentor junior data engineers and review their code/pipeline designs
- Implement data quality checks, validation frameworks, and error-handling mechanisms within pipelines
- Integrate data from structured/unstructured sources (APIs, flat files)
- Collaborate with data analysts, and business stakeholders to translate requirements into technical solutions
- Contribute to CI/CD implementation for data pipeline deployments
- Maintain technical documentation for pipelines, data flows, and architecture
Required Skills
- Strong hands-on experience with SQL (complex joins, window functions, query optimization, indexing, stored procedures)
- 4+ years of experience with Azure Data Factory (ADF) – pipelines, mapping data flows, triggers, linked services, integration runtimes
- Solid understanding of Data Engineering principles
- Strong working knowledge of the Azure data ecosystem: Azure Data Lake Storage (ADLS Gen2), Azure SQL Database
- Experience with performance tuning and troubleshooting pipeline/data issues
- Experience with version control (Git) and CI/CD pipelines (Azure DevOps preferred)
- Understanding of data governance, security, and compliance practices
- Strong analytical, debugging, and problem-solving skills
Preferred/Nice-to-Have Skills
- Experience with Databricks
- Familiarity with real-time/streaming data
- Microsoft Azure Data Engineer Associate (DP-203) certification
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Data Engineer employer: Cognizant
Cognizant is an exceptional employer that fosters a collaborative and innovative work culture, making it an ideal place for professionals seeking to excel in their careers. With a strong emphasis on employee growth and development, you will have access to mentorship opportunities and the chance to lead transformative projects in a dynamic environment. Located in a vibrant area, Cognizant offers unique advantages such as a diverse team and a commitment to work-life balance, ensuring that your contributions are both meaningful and rewarding.
