6 of 6 ETL Jobs in Hertfordshire

performance tuning and model management. Proven ability to manage and optimize very large datasets in Power BI and Azure. Solid understanding of SQL, ETL processes, and data warehousing. Familiarity with Azure Synapse, Data Lake, and Analysis Services (AAS/SSAS). Strong performance tuning: aggregations, incremental refresh, Hybrid tables, Direct ...

business rules, and reporting methodologies to ensure consistency and scalability. Requirements 4+ years of BI or Data Analytics experience. Proficiency in SQL (joins, aggregations, ETL logic, stored procedures). Expertise in Power BI (modeling, DAX, visuals, Power Query). Strong data modelling concepts (facts/dimensions, relationships). Advanced Excel ...

understand business requirements for data migration. Design and implement robust data migration strategies. Develop scripts and processes to automate data extraction, transformation, and loading (ETL) processes. Work closely with stakeholders, including business users and IT teams, to ensure data requirements are met, and migrations proceed without disruption to business operations. … Responsibilities: Plan, coordinate, and execute data migration projects within set timelines. Design and build ETL solutions, ensuring data quality and integrity throughout the migration process. Troubleshoot and resolve data-related issues promptly to minimise disruption. Collaborate with various teams to align migration processes with organisational goals and regulatory standards. Proficiency ...

/or BW/4HANA Hands‐on experience with a wide range of BW object types and tools Advanced development capabilities in data modelling, ETL processes, and performance optimisation ABAP for BW Development Skilled in creating custom function modules, class methods, and standalone programs Good understanding of ABAP used ...

across the business. Key Responsibilities Design, build, and maintain Power BI dashboards across key business functions Develop and optimise SQL queries, data models, and ETL logic Transform raw data into clean, business-ready datasets Work with data warehouse structures (fact & dimension models) Partner with stakeholders to define KPIs and reporting … analysts Requirements (Must-Have) 4+ years’ experience in a BI/Data Analyst/Reporting role Strong hands-on experience with: SQL (joins, aggregations, ETL logic, stored procedures) Power BI (DAX, Power Query, data modelling, dashboards) Strong understanding of data warehousing concepts Experience working with business stakeholders Strong analytical and ...

production-grade data platform handling complex, real-world relationships. Key Responsibilities Design and optimise Neo4j graph models and Cypher queries Build scalable, idempotent ETL/ingestion pipelines Architect PostGIS spatial schemas and queries Lead migration from legacy systems into graph architecture Expose data via high-performance APIs (REST/GraphQL … data quality Requirements Strong Neo4j + Cypher experience (production optimisation) Solid PostGIS/spatial SQL expertise Experience with graph xkybehq modelling and large-scale ETL pipelines Strong API design for data-heavy systems Nice to have: UK property data (UPRN), Kafka/event streaming, spatial data experience Details Remote: Europe ...