Tandi Dell
Verified Expert in Engineering
Data Engineer and Developer
Tandi是一位经验丰富的开发人员,已经解决了25年以上的业务问题. She started her career as a software engineer and transitioned to freelancing as a data specialist more than 15 years ago. During this time, 她设计并开发了关系数据库, data warehouses, data visualizations, and business intelligence solutions. Tandi还执行了数据迁移和集成, created ETL pipelines, 并为现有系统构建了增强的后端功能.
Portfolio
Experience
Availability
Preferred Environment
T-SQL (Transact-SQL), Microsoft SQL Server, SQL Server Reporting Services (SSRS), Microsoft Power BI, Data Modeling, Business Intelligence (BI), Data Analysis, Data Warehousing, SQL Server Integration Services (SSIS), Data
The most amazing...
...product I've co-owned and developed was a database monitoring tool that became known as Diagnostic Manager when NetIQ acquired it in Houston, Texas.
Work Experience
Consultant
Altron Karabina
- Developed SQL Server staging, operational data store (ODS), and data warehouse databases in BI solutions.
- 设计和开发ETL流程和管道来填充分期, ODS, and data warehouse databases. 源数据和目标数据包括Azure数据湖存储, CRM, CSV and Excel files, SQL tables, and more.
- Architected and built interfaces between systems. This included the creation of audit logs and error handling as needed to meet the system's requirements.
- Maintained and supported Power BI dashboards, SSRS reports, SSAS cubes, tabular models, and automated interfaces between systems.
- Conducted data analysis and profiling to assess data quality and to identify the necessary source-to-target mappings and transformations needed to meet the business requirements.
- Facilitated requirements gathering workshops and interviews with business users while documenting the identified business rules and requirements.
- 实现关系数据建模,以设计可操作的数据存储.
- 执行维度数据建模以生成项目的总线矩阵, following the Kimball methodology. The developers used the bus matrix to create conformed dimensions and fact tables in the data warehouse.
- 分析遗留系统和环境,为升级或退役做好准备.
Consultant
EnterpriseWorx
- Engineered processes and reports to verify the integrity of the data on the clients' BI platform.
- 为一家零售连锁店在SAP环境中开发带有接口的主数据解决方案.
- Built reports and dashboards to enable the Master Data Team and Data Stewards to identify and consolidate duplicate products across different retail chains to obtain a golden record for each product.
- Created automated data feeds from systems on multiple disparate platforms for an SAP data migration project.
Consultant
Altron Karabina
- 在现有的业务关键型SQL BI系统上执行故障排除和稳定.
- 为现有商业智能解决方案提供用户支持和维护.
- 为制造环境中使用的多个子系统创建ETL模块.
Consultant
Entelect
- Assessed the client's existing reporting solution and proposed improvements that offered a more flexible and extensible solution that could carry the company into the future.
- 为一个蜂窝提供商开发了一个报告和BI解决方案.
- 开发ETL流程,将数据从ERP系统加载到操作数据存储.
Consultant
IDS Consultants
- 为商业智能项目创建ETL流程.
- Developed exception reports used in fraud detection.
- 建立了红旗或绿灯申请人的审查程序.
Business Analyst and Software Development Manager
Smollan
- 在现有的工资系统上开发一个人力资源报告模块.
- 为薪资部门提供薪资系统的技术支持.
- 担任公司内部战略项目的技术顾问.
- Investigated technologies and products that could add value and provide a competitive advantage for the company.
- 围绕人才获取系统收集并记录用户需求.
- 管理人才获取系统的开发.
- Built a Visual Basic.NET (VB.NET) module for a call center application.
Volunteer
Freeme Wildlife Rehabilitation Centre
- 建立了一个准入系统来记录所有来到中心的动物.
- Developed reporting over the system to show success rates, releases, injuries, diseases, etc.
- 收集并运送受伤的动物和捐赠的食物.
Software Engineer
NetIQ
- 开发并维护了一个用VB编写的SQL Server监控系统.NET.
- Provided skills and knowledge transfer to the rest of the SQL Server product team on analyzing and correcting common customer SQL Server problems.
- Attended to customer support issues that could not be dealt with by the first and second-line customer support team.
Senior Software Developer
Subquery Innovations
- 开发和维护一个用Visual Basic 6 (VB6)编写的SQL Server监控系统.
- 协助产品的市场推广和国际会议的销售.
- Maintained the company website, including HTML content updates, uploaded new releases, and upgraded software products using FTP utilities.
- 处理电话和邮件客户支持问题.
Software Developer
Qmuzik
- 开发和维护一个用VB6编写的ERP系统模块.
- 为ERP应用程序创建了一个数据仓库组件.
- 为ERP应用程序构建了高管信息报告模块.
- Assisted with user training, 包括编写培训材料和介绍培训主题.
Developer
Investec Group
- 建立了一个电子系统,使银行每月的工资发放过程自动化, which resulted in substantial time and cost savings.
- Set up data cleansing and staging routines to automate data transfer between disparate systems and platforms such as Sybase and the AS400.
- 开发和维护RPG和LANSA编写的系统, which integrated with the primary banking system.
- 担任银行内部IT部门与特定业务部门之间的关系经理. The goal was to keep the business unit informed of any new IT strategies and to assist the business unit with obtaining IT solutions to any business challenges.
- Coordinated development requests and allocated appropriate developers to the tasks using MS Project.
Experience
Investment Fund Reporting
The solution included the following:
•每月基金业绩报告以pdf格式生成.
• Consolidated quarterly reports that leveraged off and incorporated the monthly reports by dynamically changing certain of their properties, also generated in PDF format.
•使用SSRS自动更新PowerPoint演示文稿中的嵌入式图表和图像.
• Downloadable paginated reports for internal use within the company and for sharing with partners in a combination of Excel and PDF reports.
I was responsible for liaising with the business to determine the exact requirements for each new report set, 开发报表使用的MDX和T-SQL查询, and developing the reports themselves.
The automated reporting solution replaced a labor-intensive manual process and saved the company thousands of person-hours per month.
Finance System Integration
在这个项目中,我通过提供以下内容来解决局限性:
•开发SQL模块,提供ERP系统中缺少的再保险功能.
创建ERP系统之间的自动化集成, the reinsurance module, and the finance system. Business users could also execute the interface on-demand through a Power Flow App component.
•创建用于报表的操作数据存储.
• Supplemented existing financial reports with additional SSRS paginated reports that could be downloaded for further analysis.
CRM Data Integration
During this project, I worked closely with the team of CRM developers to ensure that the pipeline I developed delivered the expected data within the required timeframes.
所开发的审计日志超出了客户的期望. They were delighted with the fact that they could easily build their own reports on the data to address any queries raised by auditors.
Report Usage Analysis
• Conducting workshops with business users to understand their report usage and critical report needs.
• Facilitating workshops with technical resources to understand the legacy environments and the proposed new reporting environment.
• Creating SQL scripts over the SSRS metadata to identify recently used SSRS reports and the databases and tables referenced by them.
• Building SQL scripts over an Azure Databricks database to identify usage stats on Power BI reports in both Premium and Pro capacity.
•开发SQL脚本来识别跨服务器和跨数据库查询.
Education
数学和计算机科学学士学位
南非大学-比勒陀利亚,南非
Certifications
AZ-900: Microsoft Azure Fundamentals
Microsoft
Skills
Tools
SQL Server BI, Microsoft Power BI, Microsoft Access, Microsoft Excel
Languages
T-SQL (Transact-SQL), SQL, RPG, Visual Basic, VB.NET, MDX
Paradigms
ETL,商业智能(BI),需求分析
Storage
Microsoft SQL Server, SQL Server Integration Services (SSIS), SQL Server Reporting Services (SSRS), Data Integration, SQL Performance, SQL Server Analysis Services (SSAS)
Platforms
Azure
Other
Data Warehousing, Reporting, Data Migration, Data, Data Cleaning, Data Cleansing, Data Analytics, Data Analysis, Data Modeling, Data Profiling, Data Warehouse Design, Technical Design, Data Visualization, Software Development, AS400, LANSA, Master Data, Agile Sprints, Waterfall Methodology, DAX
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