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Backend engineering

Applications built for a dynamic world. Develop and deploy highly scalable, cloud-native applications with ease

Your needs met with our know-how

Legacy modernization

Revitalize outdated systems, enhance efficiency, and adapt to modern technology seamlessly.

High-performing reactive applications

Re-architect monolithic applications into domain-specific microservices and gain real-time responsiveness.

Make the most of your cloud applications

Capitalize on the inherent characteristics of modern software delivery models. We can help you:

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Fully leverage the capabilities of cloud, on-prem and hybrid

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Build durable and portable applications that can easily adapt to change

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Meet demand fluctuation and stream processing challenges with confidence

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Develop applications that make efficient use of resources and reduce costs

Support for your server-side solutions

We provide everything you need for efficient server-side solutions, including:

Strategy and consulting

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  • Architecture advisory
  • Technical advisory
  • Stream processing advisory
  • Infrastructure preparedness assessment
  • Cloud provider cost saving evaluation
  • Disaster Recovery processes evaluation
  • Transformation process risk assessment and mitigation strategies
  • Gradual implementation approach to application modernization

Business and technology delivery

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  • Design and implement cloud-native architectures
  • Design and implement event-driven architectures
  • Re-architect monolithic applications into domain-specific services
  • Continuous integration and deployment pipelines in the hybrid cloud
  • Cloud-based monitoring and logging solutions
  • Application performance optimization
  • Test automation for backend engineering
  • Maintain developed applications in production (On-Call support)

Innovation and knowledge sharing

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  • Expert backend engineering helps you meet business objectives
  • Uniform security for all cloud-hosted applications
  • Technical training to upskill internal teams

Build advanced cloud applications

We engineer backends to maximize responsiveness, portability and resilience to change.

The technologies we use

Frameworks and tools


Platforms and infrastructure


Programming languages


Meet our experts

  • Artur Skowronski

    Artur Skowronski

    Head of Java/Kotlin Engineering
  • Łukasz Kuzio

    Łukasz Kuzio

    Software Development Manager
  • Michał Stawski

    Michał Stawski

    Software Development Manager

Take the first step to a sustained competitive edge for your business

Get your free consultation

VirtusLab's work has met the mark several times over, and their latest project is no exception. The team is efficient, hard-working, and trustworthy. Customers can expect a proactive team that drives results.

Stephen Rooke
Stephen RookeDirector of Software Development @ Extreme Reach

VirtusLab's engineers are truly Strapi extensions experts. Their knowledge and expertise in the area of Strapi plugins gave us the opportunity to lift our multi-brand CMS implementation to a different level.

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Leonardo PoddaEngineering Manager @ Facile.it

VirtusLab has been an incredible partner since the early development of Scala 3, essential to a mature and stable Scala 3 ecosystem.

Martin OderskyHead of Programming Research Group @ EPFL

The VirtusLab team's in-depth knowledge, understanding, and experience of technology have been invaluable to us in developing our product. The team is professional and delivers on time – we greatly appreciated this efficiency when working with them.

Michael GrantDirector of Development @ Cyber Sec Company