Full Stack Developer Java React Consultant

Keystone Solutions
📍 Brussels, Brussels, Belgium 💼 full time 🕒 Posted June 25, 2026

Job Description

Mission Overview:

This is a consultancy mission at a client site, where you will represent Keystone Solutions as a Full Stack Developer (Java/React). As a Keystone Solutions consultant, you will be hired to work on client projects, bringing your expertise and our values to every engagement.


Key Responsibilities:

  • Translate requirements into high quality code.
  • Design, build, and maintain high performance, reusable, and reliable Java code based on Spring Framework.
  • Collaborate with cross-functional teams to ship new features.
  • Work with outside data sources and APIs.
  • Ensure the best possible performance, quality, and responsiveness of the application.
  • Unit-test code for robustness, including edge cases, usability, and general reliability.
  • Identify and correct bottlenecks and fix bugs.
  • Help maintain code quality, organization, and automatization.

Mi...

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Job Details

  • Location Brussels, Brussels
  • Job Type full time
  • Category Computer Occupations
  • Posted Date June 25, 2026
  • Application Deadline August 04, 2026