IT React Developer Consultant

BelgiumBelgium·Brusselsmid
EngineeringFrontend Developer
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Quick Summary

Key Responsibilities

Participate in the Agile transformation of a major business bank, working within multi-disciplinary squads responsible for end-to-end digital solutions for enterprise clients.

Technical Tools
EngineeringFrontend Developer
The client is seeking an IT React Developer for a consultancy mission through Keystone Solutions. As a Keystone Solutions consultant, you will represent our company on-site at the client, delivering expertise and value in a dynamic environment.

Responsibilities

~1 min read
  • Participate in the Agile transformation of a major business bank, working within multi-disciplinary squads responsible for end-to-end digital solutions for enterprise clients.
  • Develop features across both frontend (React) and backend (Java, Spring Framework) components, contributing to mobile applications and cloud systems.
  • Translate requirements into high-quality code, design, build, and maintain high-performance, reusable, and reliable applications.
  • Collaborate with cross-functional teams to ship new features, work with external data sources and APIs, and ensure optimal performance, quality, and responsiveness.
  • Apply development best practices, identify and correct bottlenecks, and fix bugs.
  • Engage in Dev and Ops activities within an Agile squad, sharing knowledge and suggesting improvements to squad members.
  • Adapt and bond with new colleagues, challenge requirements based on expertise, and foster collaboration and feedback.

Requirements

~1 min read
  • At least 8 years of relevant experience in software development.
  • Deep understanding of Core JavaScript, proven knowledge of React, Git, Jest, and React Testing Library.
  • Familiarity with Test Driven Development (TDD), clean code principles, SOLID principles, and willingness to pair.
  • Experience with Java, Spring, Maven, DB, and specific frameworks is preferable.
  • Practical experience with Scrum and knowledge about authentication processes and implementations.
  • Bachelor/Master degree or equivalent by experience.
  • Sound knowledge of English; knowledge of French or Dutch is a plus.
  • Agile mindset: positive attitude, pragmatism, thirst for knowledge, focus on team success, and continuous improvement.

  • Consultancy Nature: You will work on-site as a Keystone Solutions consultant, bringing your expertise to client projects.
  • Dynamic Projects: Experience a variety of challenges across different client environments, broadening your professional horizons.
  • Turbo-Charged Learning: Benefit from continuous professional development and exposure to diverse technologies and business contexts.
  • Skyrocketing Ambition: Keystone Solutions is committed to your career growth, offering opportunities to advance within our consultancy framework.
  • Values: As a K-Stone, you bring our core values to every engagement, ensuring excellence and integrity in all missions.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

Location & Eligibility

Where is the job
Brussels, Belgium
On-site at the office
Who can apply
BE

Listing Details

First seen
July 24, 2026
Last seen
July 25, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
51%
Scored at
July 24, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
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keystone-solutionsIT React Developer Consultant