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# ETL Developer

- **Company:** Infinity Quest
- **Location:** Shirley, UK
- **Experience:** Expert
- **Salary:** £28,000.0 - £49,000.0
- **Contract:** Permanent contract
- **Skills:** CA Workload Automation Ae, Unix, Code Review, Databases, Data Infrastructure, Data Integration, Extract Transform Load (ETL), Data Warehousing, IBM DB2, Relational Databases, IBM InfoSphere DataStage, Linux, Tivoli Management Framework, Job Scheduling, Microsoft SQL Server, Oracle (Applications), Standard Sql, Shell Script, PL-SQL, SQL Databases, Teradata SQL, Snowflake, Star Schema, Control M
- **Published:** September 21, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5891624465

## About the Role

* 8+ years of dedicated experience with IBM InfoSphere DataStage, preferably v11.x, including Designer, Director, Administrator, and QualityStage
 * Expert-level proficiency in SQL and PL/SQL
 * Working knowledge of relational database architectures (RDBMS)
 * In-depth knowledge of data warehousing concepts, Star/Snowflake schemas, and Dimension/Fact loading methodologies

## Description

* Analyze complex business requirements and translate them into scalable, end-to-end technical ETL designs and robust data workflows
 * Design, develop, test, and deploy parallel and server jobs using IBM DataStage Designer, utilizing advanced stages such as Lookup, Join, Merge, Transformer, and Aggregator
 * Build and manage complex job sequences, execution loops, custom error-handling mechanisms, and standard job routines
 * Troubleshoot production bottlenecks and optimize long-running ETL processes, memory allocations, partition strategies, and SQL queries
 * Create data mappings, target schema structures, and validate complex data logic across databases such as Oracle, Teradata, SQL Server, and DB2
 * Write advanced Unix/Linux shell scripts for automated file handling, pre/post-job processing, and parameter configuration
 * Oversee enterprise job schedulers such as Control-M, Autosys, or Tivoli to manage dependencies and production runtime
 * Partner with Data Architects, Business Analysts, and QA teams to maintain data quality standards
 * Provide guidance and code reviews for junior team members

Technologies:

 * ETL
 * IBM
 * Linux
 * Oracle
 * SQL
 * Snowflake
 * Unix, We are seeking a highly experienced and analytical Senior DataStage / ETL Developer with over 8 years of hands-on expertise in designing, developing, and managing enterprise-grade data integration pipelines. In this role, we lead the implementation of complex ETL/ELT architectures, optimize high-volume data warehouses, and mentor junior developers. The ideal candidate will have deep expertise in the IBM InfoSphere DataStage Suite, strong SQL capability, and a solid understanding of modern data platforms.


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