Senior Java Developer

HAYS POLAND Sp. z o.o.

Data publikacji: 08.06.2026 Oferta wygasa: 11.08.2026

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Senior Java Developer

lokalizacja: Polska

numer referencyjny: 1200054/praktykipl

forma zatrudnienia: Pełny etat

Your new company 

For our Client - an international technology organization delivering advanced retail and point-of-sale solutions - we are currently looking for an experienced Senior Java Developer. You will join a dynamic and multicultural development team working on innovative software solutions used across various industries, including retail, hospitality, and services.

Your new role 

As a Senior Java Developer, you will be responsible for customizing and extending standard software products to meet specific customer requirements. Your main tasks will include:
  • Designing and developing new business processes or enhancing existing ones within POS (Point of Sale) systems, including cash registers, self-checkout systems, and scale systems
  • Working on central services such as cash management, POS reporting, master data management, goods flow monitoring, and promotion tools
  • Developing solutions for mobile devices and edge services
  • Integrating third-party systems (e.g. payment, loyalty, couponing systems) using various interfaces such as REST/web services
  • Collaborating on integrations with hardware components like payment terminals, printers, and scanners
  • Ensuring high-quality, scalable, and maintainable code within an agile environment

What you'll need to succeed 

  • A degree in Computer Science or a related field
  • Minimum 7 years of professional experience in Java development
  • Strong hands-on experience with several of the following:
    • Java, Spring, REST APIs
    • Maven, Git, GitLab, Jenkins
    • Testing frameworks (e.g. Mockito)
    • Databases (Oracle, MS SQL)
    • Cloud technologies
  • Good understanding of software engineering principles and design patterns
  • Strong analytical and debugging skills
  • Ability to quickly learn and adapt to new technologies and domains
  • Experience with TypeScript, Vue.js, or frontend development is a plus
  • Fluency in English (both written and spoken)

What you'll get in return 

  • Opportunity to work on complex, international projects with modern technologies
  • Collaboration with experienced, highly skilled development teams
  • Real impact on innovative solutions used by global clients
  • Professional development opportunities and exposure to diverse systems and industries
  • Competitive salary and benefits package
  • Flexible working environment

What you need to do now 


If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.



Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.

hays.pl

Hays Poland sp. z o.o. jest agencją zatrudnienia nr 361