We build software that drives your business

We build web applications, integrations, automations, and backend systems for companies that need a real solution, not another layer of complexity.

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Polish software company

Vistware is a software company led by a developer

Vistware was founded in Poland, and the name connects the Vistula river, Wisla in Polish, with software. The idea is simple: build technical solutions close to the business, without unnecessary distance between the client and the person actually designing the system.

Vistware is run by me, Przemysław Różycki. I am a backend developer and I work mostly with Python. In projects, I prefer to understand the problem first, then choose the architecture, technology, and implementation approach. That is how you build a backend that solves a real problem, not just one that looks good on a diagram.

  • Python and backend

    Backend systems, APIs, and services built to be clear, stable, and ready for future growth.

  • From monoliths to microservices

    Architecture chosen for the problem: sometimes a simple monolith is best, sometimes a modular system, and sometimes microservices with DDD.

  • Analytical problem solving

    Before writing code, I focus on understanding the goal, the constraints, and the real process behind the business need.

Services

  • Web Applications

    Web tools shaped around how your company actually works.

  • MVPs & Startups

    Support from an idea to the first working version of a product.

  • Integrations & APIs

    Connecting systems, platforms, and external services into a cohesive whole.

  • Automations

    Improving repetitive tasks, manual workflows, and work spread across multiple tools.

  • Backend Systems

    Performant, secure backend systems and APIs.

  • Technical Consulting

    Help with problem analysis, architecture choices, and technical decisions.

How we can help

Most projects start with a process that needs structure, a backend that needs to be built, or tools that need to work together.

  • Automating a manual process

    When a team loses time on copying data, reports, spreadsheets, or repetitive operations across systems.

  • Backend for an MVP or product

    When you need an API, database, business logic, and a technical foundation for the first version of an application.

  • Integrations between tools

    When several applications need to exchange data, synchronize statuses, or support a process without manual work.

  • Structuring an existing system

    When the backend works, but is hard to extend, lacks clear structure, or technical decisions start slowing the business down.

Technology stack

Technology chosen for the problem, not for the trend

Most of our work happens in the Python and modern backend ecosystem. For us, good software is not only about code, but also about how it is deployed, secured, and extended over time.

  • Python and backend

    APIs, backend services, integrations, and applications with a clear structure that can keep evolving.

    • Python
    • FastAPI
    • FastStream
    • Pydantic v2
    • SQLModel
    • SQLAlchemy

  • Data, APIs, and communication

    Data modeling, validation, integrations, and service-to-service communication, including event-driven architectures.

    • REST API
    • PostgreSQL
    • DDD
    • Event-driven architecture

  • AI in applications

    Using AI where it brings practical value: data analysis, automations, integrations, and business process support.

    • AI integrations
    • LLM workflows
    • Automation
    • Data processing

  • Delivery and infrastructure

    Automated delivery, containers, and environments prepared so the system is repeatable and predictable.

    • Azure Pipelines
    • GitHub Actions
    • Docker
    • Multi-stage builds
    • Kubernetes

  • Quality and security

    We rely on our own reusable libraries and a strong focus on code quality, dependency updates, and continuous vulnerability fixes, so applications stay secure and resilient.

    • Code quality
    • Security
    • Dependency updates
    • Reusable libraries

  • Testing and reliability

    We write code with testability in mind. Where it matters for system stability, we add automated tests that help catch regressions earlier and make the application safer to evolve.

    • Automated tests
    • Regression checks
    • Maintainability
    • Reliability

Why Vistware?

  • Direct contact

    You speak with someone who understands the technical side of the project and is involved in the work.

  • Full accountability

    One point of responsibility for scope, communication, technical decisions, and delivery.

  • Engineering mindset

    Solutions designed for reliability, security, and maintainability — not just a fast start.

  • Clear communication

    Clear scope, realistic timelines, and regular conversations about progress.

How we work

  1. Discovery

    We talk through the problem, goals, and constraints, then turn that into a clear scope.

  2. Design

    We define the architecture, main system parts, integrations, and deployment plan.

  3. Build

    The solution is built step by step, with regular feedback and visible progress.

  4. Deploy

    We prepare the production launch, configuration, final testing, and handover of the finished solution.

Insights & Updates

More posts

FAQ

A few short answers to questions that usually come up before starting a project.

  • Can we start with consultation or analysis only?

    Yes. Not every topic has to become a full build immediately. Sometimes it is better to structure the problem, check the risks, and only then decide whether the project makes sense.

  • Do you work with existing code?

    Yes, if the scope can be defined clearly. We can help analyze an existing backend, suggest a direction, or prepare a specific part of the system.

  • Do you sign NDAs?

    Yes, when the project requires it. Technical conversations often involve data, processes, or business ideas that should stay confidential.

  • Do you handle deployment?

    Yes. We prepare the application for launch and configure pipelines, containers, environments, and the deployment process. Ongoing maintenance after deployment is not assumed as a default part of the cooperation.

Let's talk

Have a project to discuss or a problem that needs technical structure? Write directly.

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