Senior Delphi Developer

Bandpey; München; Hybrid; EUR 70,000 - 100,000; Full time

Job summary

Bandpey GmbH is a data and AI software company in Munich, Germany, seeking an experienced Delphi developer to work on mature healthcare software products. The role involves long-lived Windows applications, focusing on stability, performance, and backward compatibility while modernizing legacy code.

The engineer will collaborate with C++, .NET, Java, QA, architecture and product teams, applying AI-assisted tooling where helpful. Fluent English is required; German is a plus.

Qualifications

• Senior-level Delphi and Object Pascal development experience.
• Experience with large Windows desktop applications.
• Strong knowledge of Delphi application architecture and debugging.
• Experience with the VCL and common Delphi development patterns.
• Experience maintaining and modernizing established production codebases.
• Strong SQL and database knowledge.
• Strong analytical and problem-solving skills; ability to work independently in complex legacy environments.
• Experience with several Delphi versions and migrations.
• Win32 and Windows API experience.
• COM and ActiveX integration experience.
• Experience integrating Delphi with C++, .NET or Java components.
• Oracle or other enterprise database experience.
• Experience with automated testing and CI/CD for Delphi projects.
• Healthcare or regulated-software experience.
• Experience with Claude Code, Codex or similar AI-assisted development tools.

Responsibilities

• Develop and maintain Delphi and Object Pascal applications and components.
• Analyse existing code and understand complex business and application logic.
• Diagnose and resolve performance, stability and production issues.
• Refactor and modernize legacy Delphi code while keeping it functionally compatible.
• Work with databases, external interfaces, Windows APIs and the surrounding application components.
• Support the modernization and migration of legacy components toward newer architectures and technologies.
• Collaborate closely with C++, .NET, Java, QA, architecture and product teams.
• Improve code quality, automated testing and technical documentation.
• Use modern development and AI-assisted engineering tools where they help.

Skills

Delphi

Object Pascal

Windows desktop

VCL

Debugging

SQL

Analytical thinking

Independent work

Tools

Claude Code

Codex

CI/CD

Oracle

Windows API

Job description

About the engagement

Bandpey GmbH is a data and AI software company in Munich, Germany. For a client in Germany we are looking for an experienced Delphi developer to work on mature healthcare software products. The estate contains long-lived Windows applications and components where stability, performance and backward compatibility are critical. The work combines ongoing product engineering with the gradual modernization of legacy code.

What you will do

• Develop and maintain Delphi and Object Pascal applications and components.
• Analyse existing code and understand complex business and application logic.
• Diagnose and resolve performance, stability and production issues.
• Refactor and modernize legacy Delphi code while keeping it functionally compatible.
• Work with databases, external interfaces, Windows APIs and the surrounding application components.
• Support the modernization and migration of legacy components toward newer architectures and technologies.
• Collaborate closely with C++, .NET, Java, QA, architecture and product teams.
• Improve code quality, automated testing and technical documentation.
• Use modern development and AI-assisted engineering tools where they help.

What you bring

• Several years of senior-level Delphi and Object Pascal development experience.
• Strong experience with large Windows desktop applications.
• Strong knowledge of Delphi application architecture and debugging.
• Experience with the VCL and common Delphi development patterns.
• Experience maintaining and modernizing established production codebases.
• Strong SQL and database knowledge.
• Strong analytical and problem-solving skills, and the ability to work independently in complex legacy environments.

Nice to have

• Experience with several Delphi versions and with migrations between Delphi generations.
• Win32 and Windows API experience.
• COM and ActiveX integration experience.
• Experience integrating Delphi applications with C++, .NET or Java components.
• Oracle or other enterprise database experience.
• Experience with automated testing and CI/CD for Delphi projects.
• Healthcare or regulated-software experience.
• Experience with Claude Code, Codex or similar AI-assisted development tools.

Engagement details

• Full-time, long-term contract, starting as soon as possible.
• Remote; you must be able to work from within the EU.
• Fluent English required; German is an advantage.