Delphi software developers and desktop specialists

Bring in hands-on Delphi developers to maintain desktop applications and extend business workflows. Specialists can join your team to resolve production defects or plan a staged migration.

Your main contact

Sebastiano Piccinno · CEO

sebastiano.piccinno@digiventi.com +39 329 1529 720 Book a meeting with me

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What do you need help with?

An established application needs ongoing attention

Business users depend on a Delphi application with unresolved defects or limited engineering coverage. A developer can investigate failures and maintain releases while existing workflows remain in use.

Desktop workflows need new functionality

An existing application needs new screens or changes to business rules. A Delphi developer can extend the codebase and validate changes against the workflows users rely on.

The application needs to exchange data

A desktop application needs access to an external service or a replacement database. A specialist can implement API connections and investigate data-access failures across application boundaries.

An older Delphi release restricts changes

An outdated compiler or unsupported component blocks application updates. A migration specialist can assess dependencies and carry out a staged upgrade, with regression checks for business-critical workflows.

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Legacy desktop maintenance and support

Digiventi provides Delphi developers who join your team to maintain Object Pascal applications and resolve defects in established desktop systems. Bring in a specialist when application knowledge is concentrated in one person or production issues are delaying planned changes.

Work can cover access violations and memory leaks, including faults involving component ownership or event handling. Developers trace failures through existing code, add regression tests around affected behavior, and document build requirements. They can also maintain release branches and investigate Windows compatibility issues.

Delphi desktop application development

Extend existing software with Delphi developers who can translate business requirements into maintainable desktop functionality. Work can include changes to data-entry workflows and validation rules without requiring a rewrite of the application.

VCL development: Extend Windows applications with new forms and reusable components. Separate business logic from interface code where changes require it.
FireMonkey development: Implement desktop interfaces and address platform-specific behavior. Review component compatibility before extending an application across Windows and macOS.

Database development and application integration

Connect Delphi applications to current business systems through database development and API integration. Delphi integration specialists can replace fragile data exchanges or investigate failures between the desktop client and connected services.

Database work can include FireDAC configuration and SQL tuning for SQL Server or Firebird, with attention to transaction boundaries and connection handling. Integration work covers REST API clients and existing COM interfaces. Specialists can also isolate blocking network calls from the user interface and implement explicit error handling for failed requests.

Delphi upgrades and application migration

Assess an older Delphi codebase before committing to a compiler upgrade or application replacement. Migration specialists review third-party components and build dependencies to identify compatibility constraints and work that needs separate validation.

Technical work can include Unicode conversion and Win32-to-Win64 migration, with checks for pointer-size assumptions and external DLL compatibility. Where replacement is justified, developers can extract business logic behind APIs and migrate selected functions incrementally. Regression tests compare business behavior across releases, including calculations and database updates.

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Selected work

Enterprise digital platform delivery for a European Qualified Trust Service Provider

A leading European trust service provider required senior technical and delivery capacity to manage the expansion of its national digital identity platform under strict regulatory deadlines. We deployed specialized consultants to support requirements scoping, AWS cloud architecture, and end-to-end integration workflows. The project was delivered on schedule, successfully rolling out compliant onboarding and biometric verification at national scale.

Digiventi in numbers

10+

Years of experience in the IT industry.

1.500+

Professionals

250+

Successfully completed projects.

Meet the Digiventi team

Senior specialists and the people who keep client work moving. They are the same people who answer when you get in touch.

Andreas Pettersson

CTO

Matteo Di Prima

Project Management and Consulting Coordination

Main contact

Sebastiano Piccinno

CEO

Our expertise across technologies

Our network covers a wider range of technologies, including the platforms below.

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