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Horst Wolfenstätter-SQL Server Migration

Horst Wolfenstätter
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Lampertheim, Germany

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Experience

Dec 2024 - Jan 2025

SQL Server Migration

Cairo AG

Position Summary
SQL Server Migration at Cairo AG
Industries
Utilities
Business Areas
Information Technology
  • Carried out the SQL Server migration in the Stadtwerke Schwetzingen project
Apr 2024 - Present

3rd Lvl. Support SQL Server

Insinno GmbH

Position Summary
3rd Lvl. Support SQL Server at Insinno GmbH
Industries
Information Technology
Business Areas
Information Technology
  • Continuous third-level support for SQL Server in the Matchbox project
Apr 2024 - Jul 2024

SQL Server Troubleshooting and Performance Optimization

Quibiq GmbH

Position Summary
SQL Server Troubleshooting and Performance Optimization at Quibiq GmbH
Industries
Healthcare
Information Technology
Business Areas
Information Technology
  • Analysis and resolution of performance issues in the amedes project
Dec 2020 - Aug 2021
Germany

Senior Database Developer

Meyer IT-Consulting

Position Summary
Senior Database Developer at Meyer IT-Consulting
Industries
Information Technology
Professional Services
Business Areas
Information Technology
  • Optimization of the Livision CRM databases
Oct 2016 - Sep 2018
Ludwigshafen, Germany

Senior Database Developer

Softwarekontor GmbH

Position Summary
Senior Database Developer at Softwarekontor GmbH
Industries
Information Technology
Business Areas
Information Technology
  • Carried out various database development projects
Sep 2013 - Feb 2026
Worms, Germany

Senior Database Developer

syscovery business solutions GmbH

Position Summary
Senior Database Developer at syscovery business solutions GmbH
Industries
Information Technology
Business Areas
Business Intelligence
Information Technology
  • Worked on various database projects as a Senior Database Developer
Nov 2011 - Aug 2013
Mannheim, Germany

Senior Database Developer

syscovery AG

Position Summary
Senior Database Developer at syscovery AG
Industries
Information Technology
Business Areas
Information Technology
  • Worked on various database projects
May 2011 - Present
On-site

SQL Server Administrator and Developer (Workshops)

Self-employed

Position Summary
SQL Server Administrator and Developer (Workshops) at Self-employed
Industries
Information Technology
Business Areas
Business Intelligence
Information Technology
  • Conducted onsite workshops on installation, configuration, backup and restore

  • High availability and distributed data storage

  • Troubleshooting and monitoring

  • Performance analysis and performance tuning

  • SSIS and SSRS

Mar 2011 - Mar 2011
Wuppertal, Germany

Consultant for SQL Server Mirroring and Log Shipping

Wuppertaler Stadtwerke

Position Summary
Consultant for SQL Server Mirroring and Log Shipping at Wuppertaler Stadtwerke
Industries
Utilities
Business Areas
Information Technology
  • Advised on installation and automation of mirroring and log shipping configurations
Nov 2010 - May 2011
Mannheim, Germany

Team Coach for the Development Team

syscovery AG

Position Summary
Team Coach for the Development Team at syscovery AG
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • Coaching and technical leadership of the development team
Oct 2010 - Oct 2010
Munich, Germany

SQL Server Cluster Consultant

Noerr LLP

Position Summary
SQL Server Cluster Consultant at Noerr LLP
Industries
Professional Services
Business Areas
Information Technology
  • Troubleshooting and configuration consulting for SQL Server clusters
Sep 2010 - Feb 2013
Hamburg, Germany

BI/Data Warehouse Developer

Gamigo AG

Position Summary
BI/Data Warehouse Developer at Gamigo AG
Industries
Media and Entertainment
Business Areas
Business Intelligence
  • Design, implementation and introduction of a Business Intelligence / Data Warehouse solution based on SSIS, SSAS and SSRS
Jul 2010 - Oct 2010
Munich, Germany

Database Development Team Lead

T-Systems GmbH

Position Summary
Database Development Team Lead at T-Systems GmbH
Industries
Information Technology
Business Areas
Business Intelligence
Information Technology
  • Leading the database development in the Tadmin2 project

  • Focus on SSIS package development for ETL processes and report automation with SSRS

Feb 2010 - Aug 2010
Hamburg, Germany

SQL Server Troubleshooting and Performance Optimization

Gamigo AG

Position Summary
SQL Server Troubleshooting and Performance Optimization at Gamigo AG
Industries
Media and Entertainment
Business Areas
Information Technology
  • Performance optimization in the Fiesta project
Feb 2010 - Jun 2010
Munich, Germany

Database Developer

T-Systems GmbH

Position Summary
Database Developer at T-Systems GmbH
Industries
Information Technology
Business Areas
Information Technology
Quality Assurance
  • T-SQL performance optimization and troubleshooting in the TA2Linie project

  • Implementation of quality assurance measures

Feb 2010 - May 2010
Freiburg im Breisgau, Germany

Workshop Leader SQL Server Integration Services

Koch Software Consulting GmbH

Position Summary
Workshop Leader SQL Server Integration Services at Koch Software Consulting GmbH
Industries
Information Technology
Professional Services
Business Areas
Business Intelligence
Information Technology
  • Conducting workshops on the use of MS SQL Server 2008 Integration Services
Jan 2010 - May 2010
Mannheim, Germany

Database Developer and Trainer

syscovery AG

Position Summary
Database Developer and Trainer at syscovery AG
Industries
Information Technology
Business Areas
Information Technology
  • Development of complex database routines for pseudonymization, transfer and migration of data sets

  • Staff training

Jan 2010 - Jan 2010
Mannheim, Germany

SQL Server Troubleshooting and Performance Optimization

T-Systems GmbH

Position Summary
SQL Server Troubleshooting and Performance Optimization at T-Systems GmbH
Industries
Information Technology
Business Areas
Information Technology
  • Troubleshooting and performance optimization in the SWPool project
Oct 2009 - Dec 2009
Munich, Germany

Database Developer

T-Systems GmbH

Position Summary
Database Developer at T-Systems GmbH
Industries
Information Technology
Business Areas
Information Technology
  • Development in the TA2Linie project
Sep 2009 - Sep 2009
Freiburg im Breisgau, Germany

Database Migration Consultant

Koch Software Consulting GmbH

Position Summary
Database Migration Consultant at Koch Software Consulting GmbH
Industries
Information Technology
Business Areas
Information Technology
  • Migration of an existing application from Advantage Database Server to MS SQL Server 2008
Nov 2004 - Aug 2009
Mannheim, Germany

Database Developer and Product Support

syscovery netsoft GmbH

Position Summary
Database Developer and Product Support at syscovery netsoft GmbH
Industries
Information Technology
Business Areas
Customer Service
Information Technology
Product Development
  • Development based on SQL Server 2000 and 2005

  • Staff training and Level 3 product support

Jan 2000 - Nov 2004
Darmstadt, Germany

IT Migration and Rollout Subproject Manager

Deutsche Post AG

Position Summary
IT Migration and Rollout Subproject Manager at Deutsche Post AG
Industries
Transportation
Business Areas
Information Technology
Project Management
  • Leading subprojects in IT migrations and rollouts in Darmstadt, Cologne, and Bonn

  • Using MS Office, MS Project, and VBA

Jan 1998 - Dec 2000

Merchandise Management and IT Inventory Developer

Freelance

Position Summary
Merchandise Management and IT Inventory Developer at Freelance
Industries
Information Technology
Professional Services
Business Areas
Information Technology
Supply Chain Management
  • Development based on SQL Server 7, Visual Basic 6, MS Access, and Oracle 7
Jan 1996 - Dec 1998
Sulzbach, Germany

Database and GUI Developer

Dienstleister Sulzbach/Ts.

Position Summary
Database and GUI Developer at Dienstleister Sulzbach/Ts.
Industries
Banking and Finance
Business Areas
Information Technology
  • Development in the area of paper-based payment transactions with SQL Server 6.5 and 7 and Visual Basic 6

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Transportation, Professional Services, Media and Entertainment, Banking and Finance, and Healthcare.

Information Technology
Transportation
Professional Services
Media and Entertainment
Banking and Finance
Healthcare
Profile match chart

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Business Intelligence, Product Development, Customer Service, Project Management, and Supply Chain Management.

Information Technology
Business Intelligence
Product Development
Customer Service
Project Management
Supply Chain Management
Profile match chart

Skills

Current Focus On Robust And High-Performance Database Applications With Microsoft Sql Server

  • Database Design
  • Development Of Procedures, Functions And Triggers
  • Debugging And Bug Fixing
  • Monitoring And Profiling
  • Performance Optimization Of Hardware, Configuration, Data Structures, Indexes, Individual Queries
  • Test Automation For Functional And Load Tests

Platforms

  • All Microsoft Operating Systems As Development And Target Platform
  • Microsoft Azure
  • Docker
  • Vmware

Programming Languages

  • T-Sql
  • Powershell
  • C#
  • Python
  • Visual Basic

Databases

  • Ms-Sql-Server
  • Access
  • Oracle
  • Influx

Products/Standards

  • Visual Studio
  • Team Foundation Server
  • Git

Soft Skills

  • Implementation Of Development Processes And Methods (Scrum, Psp, Tsp)
  • Team Leadership
  • Employee Motivation
  • Internal And External Training
  • Documentation
  • Project Management

Languages

German
Native
English
Advanced

Education

Oct 1984 - Jun 1989

Ruprecht-Karls-Universität Heidelberg

Studied Physics · Physics · Heidelberg, Germany

Certifications & licenses

AI-900 Azure Ai Fundamentals

Microsoft

AZ-900 Azure Fundamentals

Microsoft

DP-900 Azure Data Fundamentals

Microsoft

PL-900 Azure Power Platform Fundamentals

Microsoft

MCSA Sql Server 2016 Database Administration

Microsoft

MCSA Sql Server 2016 Database Development

Microsoft

MCSE Sql Server 2016 Data Management And Analytics

Microsoft

MCSA Databases Sql Server 2012

Microsoft

MCSE Databases Sql Server 2012

Microsoft

MCTS Sql Server 2008 Database Development

Microsoft

MCTS Sql Server 2008 Implementation and Maintenance

Microsoft

MCSD for Visual Basic 6 and Sql Server 7

Microsoft

MCSE for Windows Nt and 2000

Microsoft

Statistics

Experience

Total positions 24
Experience in Information Technology 24.5 y
Avg length 2 y 3 m
Longest experience 15 y 1 m

Global Experience

Countries worked in 1 (Germany)
Primary country Germany

Expertise

Recent roles SQL Server Migration, 3rd Lvl. Support SQL Server, SQL Server Troubleshooting and Performance Optimization
Main industries Information Technology, Transportation, Professional Services
Main business areas Information Technology, Business Intelligence, Product Development

Qualifications

Certifications earned 13

Profile

Created

Frequently asked questions

Have questions? Find more information here.

Horst is based in Lampertheim, Germany and can operate in on-site, hybrid, and remote work models.
Horst speaks the following languages: German (Native), English (Advanced).
Horst has at least 30 years of experience. During this time, Horst has worked in at least 18 different roles and for 17 different companies. The average length of individual experience is 1 year and 3 months. Note that Horst may not have shared all experience and actually has more experience.
Based on recent experience, Horst would be well-suited for roles such as: SQL Server Migration, 3rd Lvl. Support SQL Server, SQL Server Troubleshooting and Performance Optimization.
Horst's most recent position is SQL Server Migration at Cairo AG.
In recent years, Horst has worked for Cairo AG, Insinno GmbH, Quibiq GmbH, Meyer IT-Consulting, and syscovery business solutions GmbH.
Horst is most experienced in industries like Information Technology, Transportation, and Professional Services. Horst also has some experience in Media and Entertainment, Banking and Finance, and Healthcare.
Horst is most experienced in business areas like Information Technology, Business Intelligence, and Product Development. Horst also has some experience in Project Management, Customer Service, and Supply Chain Management.
Horst has recently worked in industries like Information Technology, Professional Services, and Healthcare.
Horst has recently worked in business areas like Information Technology and Business Intelligence.
Horst attended Ruprecht-Karls-Universität Heidelberg for Physics.
Horst has 13 certificates. Among them, these include: AI-900 Azure Ai Fundamentals, AZ-900 Azure Fundamentals, and DP-900 Azure Data Fundamentals.
Horst is immediately available full-time for suitable projects.
Horst's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
To hire Horst, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

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Market avg: 752-912 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.