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Java Full Stack Developer

Posted February 11, 2026
Contract

Job Overview

We are a global digital business services organization with a mission to improve the way people and companies work. Forever. Our Consulting, Technology and Learning teams design and deliver transformational digital products and experiences that add value to our clients’ businesses and to their customers’ lives.  

Every day, across the world, our teams are pioneering faster, better ways to bring our client’s most exciting ideas to life. Are you ready to make an impact? 

As a Java Full Stack Developer at Emergn, you’ll help us shape Emergn’s exciting future and play an important role in our growth.  

Join our Java team, and let’s make an impact together! 

We want you to:

  • Take responsibility over designing, coding, testing and deploying Java-based applications.
  • Collaborate with cross-functional teams to define project scope, architecture and delivery timelines.
  • Conduct code reviews and enforce coding standards and best practices.
  • Troubleshoot, debug and optimize applications for performance and scalability.

You’re a perfect fit if you have:

  • Minimum 5 years of Full Stack Java development experience with React. 
  • Solid proficiency in SpringBoot and designing RESTful APIs.
  • Experience and expertise in AWS, No-SQL/Relational Databases.
  • Experience and expertise in advanced topics like asynchronous processing, background threads, concurrency handling, analyzing bottlenecks & optimizing back-end services for performance, and developing comprehensive unit and integration tests.
  • Strong stakeholder management, facilitation, and change-management skills. 
  • Proficiency in English (written and verbal).
Location requirement: This is an onsite position based in Warsaw, Poland.



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