21.08.2026 aktualisiert


100 % verfügbar
IT Consultant | DBA & Business Intelligence Specialist
Marsascala, Malta
Weltweit
Über mich
Senior IT Consultant with 20+ years’ experience in SQL Server, DBA, Business Intelligence and Data Warehousing. Specialist in performance tuning, ETL, Power BI, Azure and data platforms, combining hands-on technical expertise with strong business experience.
Skills
Sql Data WarehouseMicrosoft Analysis ServicesBusiness IntelligenceBusiness Intelligence DevelopmentBig DataGoogle BigQueryData ArchitectureData ControlData HubData IntegrationDatensystemeData VaultData WarehousingDBASEEmbedded SQL
Senior IT Consultant with over 20 years of experience specialising in Microsoft SQL Server, Database Administration, Business Intelligence, Data Warehousing and Data Architecture. I combine deep hands-on technical expertise with extensive experience in IT management, operations and working directly with business stakeholders.
My core expertise includes:
• Microsoft SQL Server (2005–2025): administration, installation, configuration, upgrades, migrations, troubleshooting, performance tuning, query optimisation, indexing, execution plan analysis, security, backup/recovery and high availability.
• Database Architecture & Performance: database design, capacity planning, performance monitoring, complex T-SQL development, stored procedures, query optimisation, indexing strategies, Always On Availability Groups and Log Shipping.
• Data Warehousing & BI: extensive experience designing and building Data Warehouses and BI platforms from the ground up, including requirements gathering, dimensional modelling, ETL processes, data quality, reporting and analytics.
• Microsoft BI Stack: SSIS, SSAS (Multidimensional), SSRS, Power BI and advanced T-SQL.
• Cloud & Data Platforms: Microsoft Azure, Azure Data Factory, Azure VMs, Azure Storage, Snowflake, Google BigQuery and PostgreSQL.
• ETL / Data Integration: design, development and optimisation of ETL/ELT pipelines integrating ERP systems, operational databases, APIs, files and other business applications.
• Reporting & Analytics: development of management reporting, KPIs, dashboards and analytical solutions using Power BI, SSRS, SSAS and Tableau.
• Data Architecture & Governance: data modelling, centralised data platforms, data quality, security, access management, data retention and governance, with experience working within ISO 27001-oriented environments.
I have delivered complete data solutions from initial requirements and architecture through development, testing, migration, deployment and ongoing production support. I have also led BI teams and worked closely with senior management, developers and business users to translate business requirements into practical technical solutions.
Available for freelance and consultancy engagements including SQL Server DBA, performance optimisation, Data Warehouse/BI development, Data Architecture, database migrations, troubleshooting and cloud/data-platform projects.
Erfahrung
Berufserfahrungmehr als 10 Jahre
Freelancer seit2023
Sprachen
EnglishverhandlungssicherFrenchGrundkenntnisseItaliangut
Projekthistorie
DBA as a Service (on-premise SQL Server, Azure SQL), Database Health Checks and Performance Tuning, BI Services (DWH Design, ETL, Reports, OLAP, Dashboards), OLTP and OLAP database design consultancy.
Managing several departments (Customer Support, Fraud & Payments, VIP), overseeing daily operations, HR functions including recruitment and employee management, Internal Auditor for compliance licence audits (MGA, SGA, CURACAU), and Head of Data responsible for BI strategy, DWH development, SQL Server infrastructure on-premise and Azure, OLAP Cube development, SSRS reports, and SQL Server optimisation.
Managing the BI data team of 18 people including Datawarehouse developers, reporting team, Support Engineers, QA and analytics team. Responsibilities included overall management and mentorship, developing and influencing the product roadmap, tracking engineering metrics, improving code quality, and retaining top-tier engineering talent. Products used: SQL Server 2017, SSIS, SSAS, SSRS, QlikSense.