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Web Development

We create adaptable, safe, and efficient web app solutions that address your specific business needs.

Utilize our established development approach to enhance your online presence and drive significant growth across various sectors.

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We specialize in ramping up fast and delivering flexible engineering support. We realize your product vision, using our established methodology to deliver product features faster, with a focus on code quality and readability. We’ve been providing software development services for over 10 years, so we know what works, and why.

Kuba Szewczyk

Lead Frontend Developer

Position your business as a leader with efficient web development.

Your business is one of a kind, and so are our web applications. We leverage the latest technology to deliver tailored solutions that drive results. We’ve got you covered from enhanced customer satisfaction, to improved efficiency.

  • React Development

    Prioritize your users' experience by creating web apps that feature responsive and intuitive user interfaces using React.

  • Responsive Web Development

    Maintain a consistent user experience across all platforms by adapting your website to any device.

  • Python Development

    Create a smooth and robust application that maintains high standards of code reliability and scalability.

  • API Development

    Create and manage APIs for seamless communication and data exchange between different software systems.

  • Django & FastAPI

    Build growth-oriented solutions and responsive, engaging websites faster and with less code.

  • .NET Development

    Achieve strong performance, rapid time to market, and resilient architecture.

Our development portfolio

NATO ISMERLO

NATO's International Submarine Escape and Rescue Liaison Office (ISMERLO) plays a critical role in coordinating global submarine search and rescue operations. The organization's mission is to prevent peacetime submarine accidents and respond swiftly on an international scale when emergencies occur. However, their existing legacy system, which had served the international community for years, was becoming outdated and in need of a comprehensive update to continue supporting these vital operations effectively.

This system is not simple at all. There is a lot of highly technical detailed information in there, but they have done extremely well; they've delivered every single one of the requirements.
View NATO ISMERLO

UNICEF HOPE

UNICEF aimed to transform the way families in crisis received humanitarian aid - especially cash transfers. Cash transfers are one of the most efficient forms of aid, providing immediate relief while empowering families to make decisions based on their individual needs. The organization faced significant challenges in managing these processes effectively. To address this, UNICEF envisioned a powerful digital platform - Humanitarian Cash Operations and Programme Ecosystem (HOPE) - that would not only improve the efficiency of cash transfers but also guarantee data security and flawless operations. Their primary goal was to create a centralized, user-friendly system to integrate with complex back-end processes and deliver aid quickly and transparently.

View UNICEF HOPE

Recipe for a successful project

Outstanding applications come from an amazing user experience. We prioritize UX and UI design, blending aesthetics with data-driven research to enhance user flow.

Our approach establishes digital products that are appealing, functional, and user-friendly.

Girls sitting at a table looking at a laptop and smiling. Kellton logo in the background

Katarzyna Szostak & Katarzyna Kobos

HR Director & Talent Acquisition Lead

Guys playing on a slot machine - arcade

Pavlo Mokiichuk & Krzysztof Chruściel

Backend Engineers

Agata, Frontend Engineer looking at the monitor with headphones on

Agata Lipiak

Frontend Engineer

20+

Frontend Engineers

10+

QA Engineers

30+

Backend Engineers

A man in a black turtleneck stands with his arms crossed, looking at the camera. He has short brown hair. The background features a wall with a dotted world map design, and a glass surface reflects part of his image.

Dariusz Fryta

Managing Director

Start a project with us

We love working with great ideas, and yours is next. Let's kick off your project and discover where it leads us!

Our high performance stack

React

React Native

AWS

Django

JavaScript

Python

TypeScript

Node.js

Docker

Git

PostgreSQL

MongoDB

Kubernetes

Angular

Vue

HTML5

CSS3

Sass

TailwindCSS

Next.js

Firebase

GraphQL

Go Lang

.NET

Get your project going in just 5 steps

  1. Is it a match?

    Discovery Workshop

    We start our product design by thoroughly understanding your specific needs and challenges. In a kickoff workshop, we collect key insights about your current situation, challenges, and future goals. This info is then boiled down to a clear grasp of the problem we're addressing.

    • We'll assess your business to pinpoint key areas for improvement and growth.

    • We'll identify key challenges and align on how our product can meet them.

    • We’ll establish a clear vision, making sure our product fits your long-term goals.

  2. What's the plan?

    Design and Specification

    At the beginning of a project, our team concentrates on building a strong base for development. This includes outlining the project's scope, goals, and main deliverables.

    During this initial planning stage, several key things happen:

    • Designers will create wireframes and mockups to visualize the user experience.

    • The PM and Technical Architect will document functional and technical requirements.

    • Developers can join later phases with a clear understanding of the solution details.

  3. Are we ready to build?

    Software Development & Testing

    The project is now moving into its development phase, having laid the groundwork. This stage is where the initial plans and specifications are brought to life.

    Developers will explore the current documentation, clear up any uncertainties, and start creating the software's features.

    • We’ll start working in 3-week sprints and hold regular demos to show our progress.

    • You'll have full access to project management tools.

    • We’ll conduct rigorous testing to make sure quality and functionality meet the requirements.

  4. Is everything set for launch?

    Beta Release

    At this point in the project, everyone should have a sense of confidence regarding what has been completed, and all parties should be able to focus on moving the application into its final phase.

    • We’ll conduct user testing in the Staging environment to gather feedback and identify areas for improvement.

    • Now, we’ll review user feedback and pinpoint any needed changes to the project.

  5. Ready for future challenges?

    Launch and Support

    After launch, we offer ongoing support, including uptime maintenance, performance monitoring, and infrastructure adjustments as your application scales.

    • You’ll get continuous goal-oriented development or maintenance.

    • You can use our expertise to make informed decisions regarding future product development.

Get in touch with us

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