BI Developer / Data Warehouse Developer at GBS

About the Role

• We are seeking a strong BI Developer / Data Warehouse Developer to design, build, and maintain scalable data and reporting solutions within a fast-paced call centre environment. You will transform high-volume operational data into meaningful insights through advanced BI development, data modelling, and automation.

Key Responsibilities

• Design and maintain data warehouse structures and dimensional models (star/snowflake schemas)
• Develop and optimise ETL/ELT pipelines across multiple systems (CRM, dialers, telephony, HR, etc.)
• Build and enhance BI dashboards and reports for key KPIs (AHT, SLA, productivity, conversions, campaign performance)
• Automate reporting processes and improve data workflows for efficiency
• Ensure data accuracy, integrity, consistency, and performance across platforms
• Enable real-time and near real-time reporting where required
• Team Collaborate with Data Engineers and business stakeholders (Operations, Workforce Management, Finance, IT)

Technical Skills (Essential)

• Advanced SQL
• Microsoft SQL Server
• Microsoft Fabric / Azure Data Services
• On-premise and cloud data environments
• Power BI (advanced dashboarding & reporting)
• ETL / ELT development (end-to-end pipeline design)
• Data modelling (fact tables, dimension tables, star schema)
• Data integration and automation
• Strong BI development experience
• Data warehousing principles and implementation
• Data lakes (design and implementation)
• Basic Python or scripting knowledge essential

Experience & Qualifications

• Degree/Diploma in Computer Science, Information Systems, Data Engineering, or related field
• 2–5 years’ experience in BI Development / Data Warehouse environments
• Experience working with large structured datasets
• Exposure to call centre systems (dialers, CRM, telephony platforms) is advantageous

Key Competencies

• Strong technical and analytical problem-solving skills
• High attention to detail and data accuracy
• Solution-driven and structured thinking approach
• Ability to perform in a fast-paced environment
• Strong communication skills (technical and non-technical stakeholders)
• Strong teamwork, collaboration, and stakeholder engagement abilities