Java application development services

Existek is an offshore Java software company with extensive expertise in building robust and secure native desktop and web-based applications for the vast variety of industries and business verticals. Just show us your vision and we will turn it into brilliant software leveraging all power of the technology

Java development services

Working with Existek you will find a full cycle of Java software development services in one place. Years of experience and dozens of completed projects allow us to create everything, starting with an MVPs for startups and ending with complex enterprise business automations. We create custom applications and enterprise solutions which fits business of all sizes

Java web development

As a Java software company, we know that this technology is valued for great flexibility. We know how to make your software work across all devices and browsers with the excellent back‑end and front‑end code. If you’re looking for the team of reliable software experts to work on your web application - Existek is a perfect choice

Enterprise Java development

Community-driven Java EE platform is one of the best technologies for building stable and secure enterprise solutions. Our team has rich experience in leveraging Oracle technological stack for the needs of modern enterprises including application to application integration and building complex business software from scratch

Java application development

Java is a great choice when you need to develop web or native desktop application from scratch and we know how to get maximum use of it. We have internal capabilities and all needed specialists for the full cycle of software development Existek will guide you through all the process starting with a pure idea and up to ready to market product

Custom Java development

Extensive know-how and reach technology background allow our team of software engineering specialists to achieve goals even for the most complex project. We perform legacy applications modernization, complex applications integration, development of custom solutions for any industry

Our technologies

As a professional Java application development company, we love this language and the technologies which accompany it. We use Java because it has high performance, secure, has a great community and powerful IDEs as well as a huge number of flexible frameworks and libraries. But most of all we love this stack because it gives us powerful tools to accomplish our main goal – to exceed expectations of our customers


  • Oracle
  • PosrgreSQL
  • MongoDB
  • MySQL

Application servers

  • Tomcat
  • JBoss
  • Ketty
  • Glassfish

Web frameworks

  • Spring
  • JSF
  • GWT


  • AWS
  • Azure
  • Google Cloud
  • Digital Ocean

Build tools

  • Maven
  • Ant
  • Gradle
  • Jenkins
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What we do

The technology gives us the scalable, secure and flexible way to create industry-specific solutions for e-commerce, finances, healthcare, insurance, marketing, and telecommunication industries. Being an experienced Java software company, we have accumulated technical knowledge needed to create dynamic and extensive solutions for your company. Existek offers your research and development services and delivers reliable and result-oriented products


We make bespoke application for enterprises including but not limited to resource management, business process automation, management, and optimization. Java EE is the perfect tool to solve your business challenges

  • Business intelligence
  • Embedded systems
  • Task management
  • Finance and accounting
  • ERP
  • CRM

Web development

Existek is a Java web application development company experienced in build feature-rich web applications, including SaaS and PaaS that have same or deeper functionality as desktop applications and are enjoyable to use due to a fluent interface

  • e-Learning
  • Payment processing
  • eCommerce
  • Multimedia portals
  • SaaS products
  • PaaS platforms

How we use Java

Existek is a team of professionals who are passionate about the Microsoft technology stack. We have mastered those technologies to create extremely reliable enterprise desktop solutions as well as rich internet applications to help your business migrate its data and operations to the cloud.

Dedicated teams by Existek

Working with the dedicated team by Existek is the perfect option for mid- to long-term projects that require an advanced expertise and full control over the process. Here’s why:

  • Lower expenses – Hiring developers in Eastern Europe can reduce your project cost by 50% while keeping the same high quality of the code and communication
  • Flexible management and transparent reporting – we don’t have any restrictions in terms of what development or PM tools your team can use.
  • Full control – you have full control over our dedicated resources and can rely on us in the situations where you need assistance at the same time
  • A large team of experienced and qualified junior, middle and senior Java developers.
  • Adjustable working hours – no matter in which part of the world you’re located, we will adjust our working hours to match your schedule and ensure effective collaboration
  • Rich technical expertise – we guarantee that our team knows how to achieve your goals and solve the most complex technical challenges
  • Mature processes – well-established software lifecycle model, DevOps, continuous delivery, project management and communication
  • Zero time and money recruitment cost: we staff your team by engineers from our talent pool


    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