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OPTIMUS IT SERVICES

React Developer

OPTIMUS IT SERVICES
Belgium · Full-time · Not Applicable

Experience Required

  • 8+ years of relevant development experience
  • Strong mindset as a Software Craftsman — writing clean, maintainable, and high-quality code
  • Deep understanding of Core JavaScript and modern development standards
  • Proven hands-on experience with React, including reusable components, hooks, and state management
  • Strong understanding of clean code, refactoring, design patterns, and SOLID principles
  • Practical experience with TDD using Jest and React Testing Library
  • Experience with Git and version control best practices
  • Ability to work collaboratively in Agile/Scrum squads
  • Experience integrating APIs and working with external data sources
  • Strong debugging, performance optimization, and problem-solving skills
  • Familiarity with DevOps mindset: building, deploying, monitoring, and maintaining applications
  • Strong communication skills, willingness to pair-program, and active knowledge sharing
  • Open mindset, adaptability, and ability to challenge requirements when needed
  • Education: Bachelor/Master or equivalent experience
  • Nice to have: Java, Spring Framework, Maven, databases

Key Responsibilities

  • Translate business and functional requirements into high-quality, production-ready code
  • Design, build, and maintain high-performance, reusable, and scalable web applications
  • Develop primarily on the front-end with React (main focus of the role)
  • Contribute to back-end development using Java & Spring when needed
  • Collaborate with multi-disciplinary Agile squads (developers, analysts, testers, architects)
  • Integrate applications with APIs and external data sources
  • Ensure best-in-class application quality, performance, and responsiveness
  • Apply development best practices including clean code, TDD, refactoring, and SOLID
  • Identify bottlenecks, troubleshoot issues, and implement robust fixes
  • Actively contribute to continuous improvement of team workflows and engineering standards
  • Participate in code reviews, pair programming, knowledge-sharing sessions, and Agile ceremonies
  • Take ownership of both Dev and Ops tasks to support E2E feature delivery
  • Support the squad in delivering features across mobile, web, and backend systems

Key Skills

Ranked by relevance

design patterns devops react maven tdd
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Posted
Dec 04, 2025
Type
Full-time
Level
Not Applicable
Location
Brussels

Industries

IT Services IT Consulting

Categories

Information Technology

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