Web application development services

Existek is an offshore software development company providing dedicated teams and the full range of the web application development services needed to create and launch effective enterprise solutions and successful software as a service platforms.

Our services

We are the team of software engineering and business professionals who leverage the vast expertise that we accumulated in various industries to help our customers solve the most complex challenges you can meet on your track to the creating the next innovative web app or business software.

Web application development

Existek provides the web application development services for the fast-growing companies looking to create and improve the web-based software products and solutions with innovative features and beautiful appearance.

SaaS development services

We create the powerful applications fully ready to function in the SaaS distribution model. Our core value is to deliver excellent web applications that run and look consistent across all platforms and browsers.

Front-end development services

We know that the first impression is the key to the high user retention rate. At Existek we create sophisticated web interfaces with the clean look to make sure that your customers will enjoy using your web application.

Back-end development

Back-end logic and stability are the cornerstones of a great product. We equip our dedicated teams with some of the best software engineers to make sure that the backend of your app is robust, stable, secure, and easy to maintain.

Web application modernization

Do you feel like you are losing the money and customers because of your application’s slow performance and outdated look? We can port your legacy application using the trendiest technologies and give it a new life.

A2A integration & API development

We are helping businesses to find and implement the best ways to integrate their platforms into any software ecosystem via development of the advanced APIs, middleware, addings, and connectivity solutions.

Related cases

demo of application
demo of application

Technologies we use

We create cutting-edge software solutions for our customers with the help of the latest front-end and back-end technologies using the tools that automate our development process. We operate a wide range of technologies and capable of helping to find and implement the most appropriate solution to your technical challenges.

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React Native

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We serve customers from various business domains for almost a decade. During this time, we have accumulated unique experience in many industries including business intelligence, marketing, eCommerce, education, and many others. Existek team is ready to contribute our knowledge to enrich your project with the technical know-how and address all requirements for even the most demanding and sophisticated web-based solutions.

Enterprie web portals

Looking for the technology partner capable of creating the enterprise web portal that will help you to streamline your workflow and make your business more productive? Existek team can help you with that.

Business intelligence

We have built the business intelligence platforms with the real-time data and report processing for some of the industry leaders and ready to do same for you using the latest big data, machine learning, and data management techniques.

E-commerce platforms

We know that the stakes are incredibly high when it comes to the UX in e-Commerce. This is why we help retail and e-Commerce owners to improve third-party integration, customization, security, and scalability with the best quality services.

Education portals

Software engineers and business professionals at Existek have been working on the educational solutions for more than five years and are ready to use that experience to help you build your cloud educational product or platform.

Finance & banking

We are working with the established companies and startups in the financial sector to help the fintech companies to gain and grow their market share with the advanced solutions for insurance, loans, trading desks, and financial management.

Healthcare web applications

Existek has an experience and know-how needed to develop secure and reliable web-based solutions for the electronic health record systems, hospital management software and solutions for the medical sector.

Why work with Existek?

Existek develops and improves enterprise software that helps businesses of all sizes to enable automation, analytics, and collaboration. We know exactly how to leverage the cutting-edge technology solutions to generate more revenue for your and create greater value for your customers.

Full-cycle of the services

Existek offers the full cycle of the services you might need to build an application of any complexity, from zero to final product, in one place. These services, among others, include product requirements analysis, UI/UX, development, testing, post-launch support, and updates.

High quality for lower price

Eastern Europe, especially Ukraine, is recognized as one the leaders in IT sphere. Our rates are at least 30% lower than prices in Europe or North America, which allows you to save money. Use your savings for marketing, new features, or other projects.

Agile methodologies

We use Agile as our main software development life-cycle model for the projects. Experienced project managers and Scrum masters will ensure that your project systematically meets all your requirements, goals, and milestones.

Highly-skilled developers

Equipped with the experienced and certified engineers, our team is capable of crafting compelling applications with maintainable and secure code.


    Call us

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    Our locations

    Ludwika Warynskiego 3a,
    Warsaw, Poland, 00-645
    Strada Banu Antonache 40-44,
    Bucharest, Romania, 011663
    Kosmonavtiv Ave, 39
    Vinnytsia, Ukraine, 21021
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    Drop us a line