HarskaiTechnologies
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Application Modernization

Modernize legacy applications without stopping the business

We move aging applications and legacy systems to modern, cloud-ready architectures, one stage at a time.

Assess your applications

When this is the right help

Enterprises and product companies whose applications are hard to change, slow to release, or costly to run.

Our legacy systems slow down every release.

We want to move to the cloud, but cannot afford downtime.

How we work

Retire the legacy that slows you down, without stopping the business.

We modernize in stages: assess what you have, carve out the highest-value pieces, migrate step by step, and retire the old system last, so the business keeps running throughout.

Assess your applications

  • Application Modernization

    Move aging applications to modern architectures without disrupting the business.

  • Legacy System Transformation

    A staged path away from the systems that hold your teams back.

  • Cloud Migration

    Move workloads to the cloud in steps, with the old and new running side by side.

  • Modernization Assessment

    A clear view of what you have, what to keep, and what to retire first.

What you get

  • A modernization assessment of your applications and architecture
  • A staged migration plan and roadmap
  • Migrated and modernized applications, with tests and documentation
  • A handover so your team can run and extend them

Technology we use for this

Languages

Strongly typed and general-purpose languages for products, services, and data work.

  • TypeScript
  • JavaScript
  • Python
  • Java
  • Kotlin
  • C#
  • Go
  • SQL

Web, mobile & APIs

Frameworks for interfaces, services, and the APIs that connect them.

  • React
  • Next.js
  • Angular
  • Vue.js
  • Node.js
  • NestJS
  • Spring Boot
  • ASP.NET Core
  • FastAPI
  • Django
  • GraphQL
  • REST & gRPC
  • React Native
  • Flutter

Cloud & DevOps

Platforms and automation for reliable, repeatable delivery.

  • AWS
  • Microsoft Azure
  • Google Cloud
  • Docker
  • Kubernetes
  • Terraform
  • GitHub Actions
  • GitLab CI
  • Azure DevOps
  • Argo CD

Quality & observability

Testing, code quality, and monitoring that keep systems healthy.

  • Playwright
  • Cypress
  • Jest
  • JUnit
  • SonarQube
  • OpenTelemetry
  • Prometheus
  • Grafana
  • Datadog
  • Sentry

Often paired with this

Also see

Tell us what you are trying to achieve. We will help you work out the right way to get there.

Get in touch