Full-stack software development

I build modern web & mobile applications

From early feature planning and interface design to implementation, deployment and further product development.

Core stack:Angular · .NET · React Native · Azure · Nx

I help turn ideas into working, scalable products

  • Web products that create value and support the growth of your business.
  • Mobile solutions that help you reach customers faster and develop your product more efficiently.
  • A reliable backend and deployment process that enables scaling and confident product evolution.

What I can do for you

Web applications

I design and build web applications that turn your idea into a working product.

From user experience and interface design to implementation and delivery, I help you create a scalable solution that grows with your business and supports your long-term goals.

Mobile applications

I create mobile apps for iOS and Android using a shared codebase, which speeds up development and reduces maintenance costs.

The result: a native-like experience on both platforms, helping you reach more users faster without doubling the effort.

Consulting & audits

I support teams in improving architecture, development processes and product delivery so they can ship more reliably and predictably.

I identify bottlenecks, provide practical recommendations and help implement changes that stabilise your project and accelerate team productivity.

How collaboration looks

01

Discovery & analysis

We discuss your business, users and requirements. We define scope, priorities and timelines.

02

Solution design

I propose architecture, tech stack and roadmap, focusing on scalability and long-term maintainability.

03

Implementation & tests

I deliver features iteratively, covering critical paths with automated tests.

04

Release & growth

I support deployment and further product evolution.

Technologies I work with

Frontend

AngularJavaScriptTypeScriptRxJSHTMLCSSTailwindBootstrapPrimeNGReactSSGSSR

Mobile

React NativeExpoIonicCapacitorPWATWA

Architecture & State management

NxNgRxNGXSTanStack QueryRESTful API

Backend & Databases

C#.NETEntity FrameworkSQLNestJSTypeORMMongoDB

Tests

Cypress

DevOps & cloud

AzureDockerGitHubGIT

Contact

Share a few details about your project - I’ll propose a direction, suggest suitable technologies and provide an initial estimate.

Contact details

Company
Grzegorz Kniażuk Software Development
E-mail
Phone
Location
Lublin, Poland / remote
LinkedIn

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