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Data Warehousing Specialist

2 months ago

London, Greater London, United Kingdom Qualserv Consulting Full time
Job Description

Job Title: Data Warehousing Specialist

Job Summary:

We are seeking a highly skilled Data Warehousing Specialist to join our team at Qualserv Consulting. As a Data Warehousing Specialist, you will be responsible for designing, developing, and deploying ETL solutions using IBM DataStage. You will work closely with our team to translate business requirements into technical ETL designs, create high-level solution designs, and develop, enhance, and maintain ETL code following best practices and standards.

Key Responsibilities:

  • Translate business requirements and data mapping documents into technical ETL designs.
  • Create and review high-level solution designs.
  • Develop, enhance, and maintain ETL code following best practices and standards.
  • Perform technical walkthroughs of amended DataStage ETL solutions for peer reviews.
  • Create and execute unit testing plans.
  • Support Regression and System test efforts.
  • Debug and problem solve issues found during testing and/or production.
  • Promote DataStage ETL code using Perforce and Urban Code deployment tools.
  • Evaluate data for completeness and correctness, validate that ETL code is working as expected.
  • Communicate status, issues, blockers to project manager and ETL team lead.
  • Support continuous improvement of ETL interfaces by identifying and solving opportunities.
  • Update and publish documentation, system diagrams, presentations, workflows, project plans, log issues, and unit testing logs.
  • Attend project and ETL meetings.
  • Perform knowledge transfer sessions to ETL Production support and Development team.
  • Assist Production support team on the resolution of production incidents related to ETL processes when required.

Accountabilities:

  • Ensure all deliverables meet internal standards, industry best practice within the agreed timeframe.
  • Ensure clear and transparent communication to all key stakeholders.
  • Be responsible for the project deliverables related to assigned initiatives.
  • Be responsible for IT-related risks, issues, and ensure appropriate escalation to appropriate management.
  • Support strategic discussions and propose appropriate recommendations to IT management.
  • Be responsible for troubleshooting, root cause analysis, data analysis related to BAU support requests.
  • Ensure appropriate tracking and escalation of IT-related risks and issues observed.

Requirements:

  • IBM DataStage: Understanding of DataStage architecture and components. Familiarity with DataStage Designer, Director, and Administrator. Knowledge of DataStage jobs, stages, and data connections. Experience with parallel job design and development.
  • Database Systems: Relational databases (e.g., IBM Db2, Oracle, SQL Server). SQL and PL/SQL programming.
  • ETL development: Designing, developing, and deploying DataStage jobs. Creating complex ETL processes using DataStage and connectors. Performance tuning of DataStage jobs.
  • Data Transformation and Cleansing: Applying data transformation rules. Implementing data quality and data cleansing routines.
  • Data Integration: Integrating data from various sources (e.g., databases, flat files, XML). Handling structured and unstructured data.
  • Problem Solving and Debugging: Identifying and resolving ETL job failures. Troubleshooting performance issues.
  • Hands-on Experience with IBM DataStage: Several years of experience developing ETL solutions using IBM DataStage. Experience with different DataStage versions.
  • Project Experience: Involvement in full project life cycles, from requirements gathering to deployment and maintenance. Working in Agile or Waterfall project environments.
  • Database and SQL Experience: Writing complex SQL queries and stored procedures. Working with large datasets and optimising queries for performance.