VSign — Software & infrastructure modernization

Infrastructure

Infrastructure as code

We turn hand-maintained servers into versioned, reproducible code — infrastructure that an AI agent, or any team member, can understand, audit and modify.

Software

Legacy system migration

We modernize critical applications without stopping your operation. Migration is incremental: the old system and the new one coexist until the last user switches over.

AI

AI in your company

We integrate AI tooling and agents into your operation: we automate concrete tasks by connecting models with your systems, data and channels.

The problem

AI can't read your legacy system

AI agents write, test and refactor code — and they also operate systems, provide support and answer messages — but only on modern, integrated stacks. Legacy systems — inherited desktop applications, unsupported languages and runtimes, proprietary platforms — expose no APIs, have no automated tests and use formats no modern tooling understands. To AI — and to almost any new developer — they're a black box.

  • Proprietary or obsolete formats and databases
  • No APIs or integrations: everything is done by hand
  • Knowledge of the system lives in one or two people
  • Dependence on Windows and manually maintained servers
  • No support or patches: security vulnerabilities pile up

Every year, migrating gets more expensive and the talent that understands those systems gets scarcer. The good news: a well-run migration is not a multi-year project or a leap of faith.

What we do

AI

AI in your company

We integrate AI tooling and agents into your operation: we automate concrete tasks by connecting models with your systems, data and channels.

  • Custom agents. We build and integrate AI agents for specific needs: support, document processing, queries over your own data.
  • Integration with your systems. We connect models to your existing applications and APIs — agents work on your real information.
  • AI tooling. We deploy AI tooling for development and operations: coding agents, support automation, internal assistants.
  • Agent-ready stack. We bring your software and infrastructure to a state where AI can work on them: APIs, versioned code, documentation.

Infrastructure

Infrastructure as code

We turn hand-maintained servers into versioned, reproducible code — infrastructure that an AI agent, or any team member, can understand, audit and modify.

  • IaC and automation. Declarative provisioning and configuration instead of hand-configured servers.
  • Windows → Linux. We migrate workloads and services to Linux: fewer licenses, less friction, more automation.
  • Proprietary → open source. We replace proprietary components with free and open source alternatives: lower licensing costs and less vendor lock-in.
  • VMs and containers. KVM, Docker and reproducible deployments.
  • Cloud and repatriation. Migrations to and from the cloud: we move your infrastructure wherever cost and control make the most sense.

Software

Legacy system migration

We modernize critical applications without stopping your operation. Migration is incremental: the old system and the new one coexist until the last user switches over.

  • Assessment and strategy. We map what the system does, which data it touches, and what makes sense to replace first.
  • Incremental migration. We replace components one at a time — never a big bang.
  • Data migration. We extract and transform data from proprietary formats and obsolete databases into modern platforms.
  • Security. Moving off unsupported software removes vulnerabilities that no longer get patched — and leaves your system on a maintainable base.
  • Beyond languages. VB6, Delphi, PHP 5 → PHP 8, .NET Framework applications, ODBC-based systems, inherited desktop applications and obsolete databases.

Why us

We speak both languages: legacy and modern

We've been developing software for over 30 years — and software years are worth even more than dog years, so that's a few industry lifetimes. We know last era's systems because we built them — and we work every day with current stacks and AI agents.

That combination is what makes it possible to migrate without losing the knowledge and business logic your system has accumulated over decades.

LEGACY
VB6DelphiPHP 5.NET FrameworkODBCdesktop appsWindows Server
MODERN
PHP 8PythonJavaScriptLinuxDockerKVMIaCAWSOpen sourceAI agents

About us

Over 30 years of real-world experience

VSign is a software development and infrastructure company from Tierra del Fuego, Argentina. We work with organizations that need their technology to stop being a risk and become an advantage again — and we use AI in our own work every day.

Contact

Let's talk about your system

Tell us which system keeps you up at night — or which infrastructure you'd like to stop maintaining by hand — and we'll give you an honest read on what makes sense to do. No strings attached.

or write to [email protected]