Performance Optimization:Focus on optimizing the performance of critical communication systems.Perform performance tuning of SQL queries and stored procedures to enhance system efficiency.Analyze and optimize system architecture to ensure high availability and reliability.Automation and Optimization:Automate semi-manual processes during software upgrades to increase efficiency and accuracy.Develop and implement automation scripts using PowerShell to streamline routine tasks and reduce manual intervention.Error Resolution and Quality Control:Diagnose and resolve errors in extensive stored procedures without existing documentation through reverse engineering techniques.Address specific issues such as failure to delete after retention periods and errors in audio recording loading that halted application responses.Conduct thorough testing and validation to ensure quality and performance of software solutions.Security and Compatibility Checks:Implement Row-Level Security for software used by air controllers.Verify compatibility of various database objects (tables, views, functions, stored procedures) with new software versions.Ensure data security and compliance with industry standards.Technologies Used:MS SQL ServerJiraPowerShellProject Scope:The project involves working with security-critical information and communication systems for industries such as aviation, defense, public safety, maritime, and public transportation.The project is ongoing from August 2023 to the present (current involvement).Achievements:Successful and ongoing error resolution and optimization in a critical, high-availability environment.Effective automation of previously manual processes, resulting in significant efficiency gains.High-level technical problem-solving through the use of reverse engineering in a documentation-sparse environment.Key Competencies:T-SQL, SQLReverse EngineeringBug FixingPerformance OptimizationSecurity Implementation

Data IntegrationSystems: ABAS ERP, In-house BDE MDESummary: Developed interfaces for transferring item data from ABAS ERP to an in-house BDE MDE systemCAQ Software EnhancementTechnologies: T-SQL, OLAP, OLTP, C#, Visual Studio, Siemens Monitoring, Citrix, Windows, Windows ServerOverview: Expanded Siemens' CAQ software for new quality assurance machines. Key achievements included implementing a random selection mechanism for quality control.System and Software DevelopmentResponsibilities:Designing & optimizing system architecture.Performance tuning for indexes, queries, and wait stats.Ongoing development % maintenance using T-SQL, C#, and PowerShell.Developing software architectures & programming.Reporting & data visualization Power BI.Implementing & maintaining SSIS and SSRS.Data aggregation & processing.ETL processes with DBT & Airflow.Quality Assurance & TroubleshootingEnsuring production quality using CAQ Siemens.Consolidating and optimizing data structures.Systematic troubleshooting & bug fixing.Automation and MonitoringDeveloping & implementing automation solutions.Monitoring production & supporting production processes.Detecting deviations using predictive AI for outlier.Project Objective:To develop and implement comprehensive data visualization using Microsoft Power BI on a Microsoft SQL Server, improving processing of existing production data. The goal is to enable effective monitoring of business processes in manufacturing and business support for 16 production machines, facilitating quicker and more efficient responses to production processes.Analyze the current application landscape.Conceptualize and recommend Power BI for data visualization.Present the concept & action recommendations to manager.Introduce and develop the Power BI reporting tool.Visualize data.Create detailed technical documentation.Products:Products: MS SQL Server, MS SQL Database, PowerShellSkills: Performance, DB Tuning, T-SQL, Automation

I was privileged to serve as a freelance PowerShell Trainer with Helaba. During this engagement, I delivered comprehensive training on PowerShell, encompassing a wide range of essential topics to empower individuals with the knowledge and skills necessary for efficient scripting and system management.Key Training Modules:PowerShell Basics: Provided a solid foundation by introducing participants to the fundamentals of PowerShell.Pipeline, Scripts, & Syntax: Conducted a deep dive into scripting with PowerShell, focusing on the creation and execution of scripts.Variables and Data Types: Facilitated an understanding of various variables and data types, including their proper declaration and practical usage.Variable Scopes and Collections: Explained the intricacies of different variable scopes, array handling, and working with collections to enhance script versatility.Security: Emphasized implementing security measures within PowerShell, covering execution policy configurations and security best practices.Remote Management: Demonstrated techniques for effectively managing remote systems using PowerShell, a crucial skill in today's interconnected world.Script Flow Control Statements: Introduced trainees to working with loops and conditional statements, enabling them to exercise precise control over script execution.Functions, Filters, and Modules: Taught the creation and utilization of functions, filters, and modules, essential for organizing and reusing code efficiently.OOP and Database Connectivity: Gave participants an overview of object-oriented programming concepts within PowerShell and demonstrated connecting to databases, enhancing their capabilities.My role involved disseminating valuable knowledge and empowering individuals with the practical skills required for real-world applications. It was a rewarding experience to facilitate the development of proficiency in this powerful scripting language.

A versatile professional with a unique blend of skills encompassing Database Administration, Automation, and Data Science. During my employment, I contributed to the dynamic team at parcIT GmbH.Key responsibilities and roles include:Database Administrator (MSSQL, PostgreSQL): Proficiently managed and optimized MSSQL and PostgreSQL databases, ensuring data integrity and performance. Implemented SQL performance tuning techniques for enhanced database efficiency.Scripting Automation (PowerShell): Leveraged PowerShell scripting to automate critical tasks, streamlining operations and reducing manual effort. This resulted in increased productivity and reduced operational costs.Data Scientist (R): Applied my expertise in the R programming language to analyze complex datasets and extract valuable insights. Contributed to data-driven decision-making processes and enhanced business strategies.Skills Highlights:SQL Server Analysis Services (SSAS): Proficient in SSAS, enabling multidimensional data analysis and reporting.PostgreSQL: Expertise in PostgreSQL for robust and scalable data management.Angular: Familiarity with Angular for building interactive web applications.C#: Competent in C# for developing software solutions.Machine Learning: Skilled in applying machine learning techniques to solve real-world problems.Microsoft SQL Server: Proficient in managing and optimizing Microsoft SQL Server databases.PowerShell: Adept at scripting and automation using PowerShell.R (Programming Language): Extensive experience in R for data analysis and modeling.SQL: Strong SQL skills for querying and managing databases.My passion lay in leveraging data to drive business success, and I was dedicated to staying at the forefront of technology to deliver innovative solutions. I was open to networking and collaboration opportunities in the field of data science, database administration, and automation.

A dedicated Senior System Engineer with over seven years of experience at Pallas in the vibrant Cologne Area, Germany. My expertise lies in Microsoft SQL Server administration and T-SQL performance optimization, contributing significantly to the organization's success.Key Responsibilities and Achievements:MS SQL Administrator: Proficiently managed Microsoft SQL Server databases, ensuring reliability, security, and optimal performance. Implemented best practices for database design and maintenance.T-SQL Performance Optimization: Specialized in optimizing T-SQL queries and stored procedures, enhancing database performance and reducing query execution times. This resulted in improved system efficiency and responsiveness.Skills Highlights:SQL Server Analysis Services (SSAS): Competent in SSAS for multidimensional data analysis and reporting.C#: Proficient in C# programming for software development and integration.Performance Tuning: Expertise in performance tuning, particularly in database environments, to achieve optimal system performance.Database Administration: Skilled in all aspects of database administration, including backup and recovery, security, and maintenance.I was passionate about continuously improving system performance and reliability to support the organization's goals. I thrived on technical challenges and was committed to staying up-to-date with the latest industry trends and technologies.

During my two-month engagement as a Freelance Database Administrator, I provided critical support and expertise in managing databases, with a primary focus on DB2 and Oracle systems.Key Responsibilities and Achievements:Database Administration: Proficiently administered DB2 and Oracle databases, ensuring optimal performance and reliability. I managed tasks related to database creation, maintenance, and security, ensuring seamless data operations.Performance Tuning: Employed performance-tuning strategies to enhance database efficiency. This involved identifying and addressing bottlenecks, optimizing query execution, and improving overall system responsiveness.Skills Highlights:Angular: Familiarity with Angular, which played a role in web application development and integration with databases.Performance Tuning: Demonstrated expertise in fine-tuning databases for improved efficiency and responsiveness.Database Administration: Proficient in all aspects of database administration, including backup and recovery, security, and maintenance.SQL Performance Tuning: Skillful in optimizing SQL queries for enhanced database performance.My role as a Freelance Database Administrator allowed me to contribute to the smooth operation of critical data systems within the organization. I'm experienced in database management and performance optimization, and I'm committed to delivering results that positively impact business operations.Should you have any questions or require my expertise for future projects, please feel free to reach out. I'm here to assist in any way I can.

As a Senior Siebel Consultant with T-Systems, I had the opportunity to lead a crucial project involving the migration of an existing Siebel Application to Siebel 8.1.1.4 SIA, along with the installation of Innovation Pack 2015. This challenging project also included various critical tasks and responsibilities:Key Responsibilities and Achievements:Migration of Siebel Application: Successfully managed the migration of an existing Siebel Application to Siebel 8.1.1.4 SIA, ensuring a seamless transition with minimal disruption to business operations.Concept Development: Evaluated and developed a comprehensive concept for the migration, addressing all aspects of the process to guarantee its success.Interface Replacement with ETL: Identified and replaced specific interfaces with efficient Extract, Transform, Load (ETL) processes, improving data integration and system performance.SSIS Server Evaluation: Conducted an assessment to determine the potential benefits of implementing a SQL Server Integration Services (SSIS) server to enhance data integration and management capabilities.My role required in-depth knowledge of database administration and the ability to strategize and execute complex migration projects. It was a fulfilling experience to contribute to the success of the Siebel Application migration, ultimately improving the efficiency of the organization's CRM system.

During my tenure as a Senior CRM Consultant at QVC, I played a pivotal role in leveraging my expertise to enhance the performance and database administration of the Customer Relationship Management (CRM) systems. This encompassed a wide range of responsibilities and achievements:Key Responsibilities and Achievements:Performance Tuning: Successfully fine-tuned the CRM systems to optimize their performance. This involved identifying and addressing bottlenecks, improving query response times, and enhancing overall system efficiency.Database Administration: Proficiently managed and maintained the CRM databases, ensuring data integrity, security, and seamless operations. This included tasks related to database design, backup and recovery, and access control.My role allowed me to make significant contributions to the CRM systems' performance and reliability, ultimately supporting the organization in delivering exceptional customer experiences.

During my role, I had the privilege of working in the IT Department, primarily focusing on Oracle, Siebel, EIM (Enterprise Integration Manager), EAI (Enterprise Application Integration), SQL, and the Siebel Connector for SAP. I was responsible for various critical aspects within the electrical industry and automotive sector, which included the following:Key Responsibilities and Achievements:Siebel Environment Management: As a Siebel Architect, I was accountable for overseeing and managing all Siebel environments, ensuring their stability and efficient operation.Siebel File System: Managed the Siebel File System, a critical component for storing and managing files associated with Siebel applications.Division Change Requests: Successfully implemented divisional change requests within the Siebel environment, aligning the system with evolving business needs.Customizing Siebel: Played a pivotal role in customizing the Siebel system to adapt to specific requirements and industry standards.My role as a Senior Siebel Architect was instrumental in enhancing the efficiency and effectiveness of Siebel systems within the organization, especially in the context of the electrical industry and automotive sectors.

During my brief yet impactful role as a Senior Siebel and Oracle Consultant, I was engaged with Siebel Industry Applications, including EIM, EAI (Enterprise Application Integration), SQL, and PL/SQL. I worked within the dynamic pharmaceutical sector, contributing significantly to various critical projects:Key Responsibilities and Achievements:Siebel Core Data Analysis: Conducted in-depth analysis of Siebel core data, ensuring a comprehensive understanding of the existing data structures and relationships.Data Migration (Schering): Played a vital role in the data migration process, specifically focusing on the integration of Schering's data, aimed at enhancing data quality and security.Data Security Enhancement: Implemented measures to enhance data security, ensuring the protection and confidentiality of sensitive information.Duplicate Check ("Acxiom"): Leveraged tools like Acxiom for duplicate checks, streamlining data deduplication processes.Change Request Fulfillment: Efficiently fulfilled change requests, adapting the Siebel and Oracle systems to evolving business needs and industry standards.Oracle Siebel CTMS Implementation: Contributed to the implementation and revision of Oracle Siebel CTMS (Clinical Trial Management System), aligning it with the organization's clinical trial management requirements.My role as a Senior Siebel and Oracle Consultant at Bayer was instrumental in streamlining data migration, ensuring data quality, and adapting the systems to the pharmaceutical industry's rigorous standards.

As an Administrator at RA Micro, my role encompassed a diverse set of responsibilities aimed at facilitating smooth operations within the organization. This position involved tasks related to administrative and operational support, ensuring the efficient functioning of the company.Key Responsibilities and Achievements:Office Administration: Managed office logistics and resources, including office supplies, equipment, and maintenance, to create a conducive work environment.Documentation and Records Management: Oversaw the organization and maintenance of important documents and records, ensuring their accessibility when needed.Communication Support: Assisted in communication tasks, including managing emails, coordinating meetings, and responding to inquiries, which helped in the efficient flow of information within the company.Client and Team Support: Provided support to clients and team members, addressing their needs and concerns to enhance client satisfaction and team productivity.Scheduling and Calendar Management: Managed schedules and calendars for meetings, appointments, and deadlines, ensuring timely task completion.My role as an Administrator at RA Micro was crucial in maintaining the operational backbone of the organization, supporting various functions, and contributing to overall efficiency.