09/26/2026 updated
100 % available
Senior Software Engineer & Independent Consultant | Gupta SQLWindows / OpenText Team Developer
Zuid-Holland, Netherlands
Belgium +1
Bachelor of Information and Communication Technology (B.ICT)info: Belgium, Netherlands
C Sharp (Programming Language)C++ (Programming Language)HP LoadrunnerNuGetSoftware EngineeringSoftware ManufacturingSoftware SystemsSQLiteSQL DatabasesSystems IntegrationGitOpenTextDeployment AutomationVcenterJenkins
Gupta SQLWindows / OpenText Team Developer
Extensive expertise in Gupta SQLWindows and OpenText Team Developer since 1996, covering application development, modernisation, migration, version upgrades and performance optimisation of large, business-critical legacy applications.
Legacy Application Modernisation and Migration
Specialisation in the analysis, maintenance, modernisation and migration of large legacy applications, including source conversion, compatibility analysis, application stabilisation and version upgrades across multiple major client environments.
CI/CD and Build Automation
Design and implementation of CI/CD pipelines and automated build systems using Jenkins, Git, SVN, Gitea, InstallShield, WiX and ClickOnce, including repository structure design and modern source-control practices for Team Developer projects.
C#/.NET and C++ Integration
Development of .NET interfaces as drop-in replacements for COM components, integration of Team Developer applications with .NET, COM and external systems, and maintenance of C++ and .NET applications for business-critical solutions.
Database Technologies
Practical experience with Oracle, SQL Server, DB2, SQLBase, SQLite and MySQL in the context of enterprise application development and integration.
System Integration and Web Services
Integration of applications with SOAP, REST, COM, ActiveX, WinAPI, WebSphere/MQ, Genesys, IBM PComm and GAIL, including mainframe connectivity and telephony integration.
Performance Optimisation and Refactoring
Investigation and resolution of application performance issues, code refactoring to improve performance, maintainability and efficiency, as well as performance testing using HP LoadRunner.
DevOps and Deployment Tools
Hands-on experience with Jenkins, Git, SVN, Gitea, NuGet/ProGet, VMware vCenter, Jira, InstallShield, WiX and ClickOnce for deployment automation and environment management.
AI-Assisted Development
Practical use of AI-assisted development tools including Claude, ChatGPT/Codex and Copilot to support software engineering tasks.
Technical Design and Coaching
Technical design of complex software systems, team lead activities, training and coaching of software developers, and creation of course materials and technical presentations.
Extensive expertise in Gupta SQLWindows and OpenText Team Developer since 1996, covering application development, modernisation, migration, version upgrades and performance optimisation of large, business-critical legacy applications.
Legacy Application Modernisation and Migration
Specialisation in the analysis, maintenance, modernisation and migration of large legacy applications, including source conversion, compatibility analysis, application stabilisation and version upgrades across multiple major client environments.
CI/CD and Build Automation
Design and implementation of CI/CD pipelines and automated build systems using Jenkins, Git, SVN, Gitea, InstallShield, WiX and ClickOnce, including repository structure design and modern source-control practices for Team Developer projects.
C#/.NET and C++ Integration
Development of .NET interfaces as drop-in replacements for COM components, integration of Team Developer applications with .NET, COM and external systems, and maintenance of C++ and .NET applications for business-critical solutions.
Database Technologies
Practical experience with Oracle, SQL Server, DB2, SQLBase, SQLite and MySQL in the context of enterprise application development and integration.
System Integration and Web Services
Integration of applications with SOAP, REST, COM, ActiveX, WinAPI, WebSphere/MQ, Genesys, IBM PComm and GAIL, including mainframe connectivity and telephony integration.
Performance Optimisation and Refactoring
Investigation and resolution of application performance issues, code refactoring to improve performance, maintainability and efficiency, as well as performance testing using HP LoadRunner.
DevOps and Deployment Tools
Hands-on experience with Jenkins, Git, SVN, Gitea, NuGet/ProGet, VMware vCenter, Jira, InstallShield, WiX and ClickOnce for deployment automation and environment management.
AI-Assisted Development
Practical use of AI-assisted development tools including Claude, ChatGPT/Codex and Copilot to support software engineering tasks.
Technical Design and Coaching
Technical design of complex software systems, team lead activities, training and coaching of software developers, and creation of course materials and technical presentations.
Experience
Professional experience10+ years
Freelancer since2011
Languages
GermanFluentEnglishFluentDutchNative speaker
Project history
Developed TDAppTools, TOM2Git and TDVersionExplorer as publicly available tools for the Team Developer community. Maintains utilities, examples and technical resources, and hosts the Team Developer Community websites.
Long-term software engineering and consultancy assignments involving legacy modernisation, source-control migration, .NET integration, performance optimisation and CI/CD for AGFA Healthcare, Centraal Beheer/Achmea, 1Ship and Teva Pharmachemie. Development of Team Developer-related tools and utilities.
Application modernisation and development of the IMPAX RIS application suite, including conversion from Team Developer 1.5 to 6.x and 7.x, .NET interface development, image processing integration using GdPicture.NET, performance optimisation and CI/CD pipeline implementation using Jenkins, ProGet/NuGet, vCenter, ClickOnce and InstallShield.