Senior SQL Developer

3 weeks ago

Johannesburg, South Africa Mindworx Consulting Full time

Key Responsibilities:Collaborate with business stakeholders, product owners, operations, and IT teams to analyze requirements and design optimal data solutionsTranslate business needs into technical specifications, including data models, ETL logic, and reporting structuresDevelop, optimize, and maintain complex SQL code, stored procedures, and functionsDesign and implement ETL solutions using SSIS or equivalent tools, ensuring accuracy, performance, and maintainabilityBuild and maintain enterprise data warehouse solutions, including dimensional modelling and performance optimizationDevelop and maintain interactive dashboards and reports using Power BI, SSRS, and other BI toolsImplement version control and collaborative development practices using Git (branching strategies, pull requests, code reviews)Integrate data from multiple sources, ensuring data quality, integrity, and securityWork with internal APIs to retrieve, transform, and load data into SQL Server environments, and integrate API-driven processes into SSIS packages where requiredMonitor and troubleshoot production data processes, providing timely resolution of issuesContribute to architectural design decisions and participate in peer code reviewsImplement best practices for database performance tuning, security, and optimizationSupport Agile delivery processes, participating in sprint planning, daily stand-ups, and retrospectivesDocument technical solutions, processes, and data flows for operational continuity and knowledge sharingExperience:Minimum 57 years experience in database development, with extensive use of T-SQL (SQL Server)Proven experience in ETL design and development using SSIS (or similar tools)Hands-on experience with data warehouse design, dimensional modelling, and large-scale database solutionsExperience in BI development using Power BI, SSRS, and other reporting toolsSolid understanding of source control systems (Git) and CI/CD practices for data solutionsStrong problem-solving skills, with a track record of troubleshooting and optimizing SQL queries and ETL processesExperience in consuming and integrating APIs (REST/SOAP) into SQL and SSIS processes is considered highly advantageousExposure to cloud-based data solutions (Azure Synapse, Azure Data Factory, or similar) is beneficialKnowledge or hands-on experience with Snowflake or IBM Cloud Pak for Data is considered a strong advantageExperience working in Agile/Scrum environmentsFinancial services or investment platform experience is advantageousMinimum Qualifications Required:Bachelors degree in Information Technology, Computer Science, Information Systems, or a related fieldA relevant diploma in IT, Data Analytics, or a related field will also be considered if accompanied by hands-on experience in SQL development, ETL processes, and data warehousingMicrosoft certifications in SQL Server, Data Engineering, or Power BI (preferred but not mandatory)Azure Data Engineer Associate or similar cloud data certification is advantageous

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