Frontend Developer

Atos; Brussel Hoofdstad; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid work model

AI-assisted development

Job summary

Atos in Brussels is seeking a Senior Front-end Developer to join a development team. You will contribute your React and TypeScript expertise to build interfaces for our Azure-based solutions, collaborating with backend engineers and product owners.

The role emphasizes clean code, automated testing, CI/CD, and accessible, high-performance UIs. Candidates should have 5+ years of production web-app experience and a proactive, Agile mindset; some travel for 110 days per year is mentioned.

Qualifications

• 5+ years building production web applications with React and TypeScript.
• Designs clear, consistent interfaces for complex data.
• Experience with multiple state management/rendering approaches.
• Experience consuming REST APIs and authentication (OAuth2 / OIDC).
• Solid delivery: automated testing, quality gates, DevSecOps.
• Experience in SAFe/Agile teams.
• Proactive mindset to review requirements and raise feasibility concerns.
• Experience with AI-assisted development.

Responsibilities

• Design and build web applications with clean component architecture and state management.
• Build interfaces that stay clear and usable with complex data.
• Integrate with backend APIs and define contracts with backend developers.
• Refine requirements with Product Owner and experts, and assess technical feasibility.
• Apply software engineering best practices: clean code, automated testing, CI/CD.
• Measure and improve accessibility and performance.
• Take part in design and code reviews.

Skills

React

TypeScript

Angular

REST APIs

State management

OAuth2 / OIDC

Job description

Level: Senior · Languages:English required; French a plus

Location: 50% Brussels 110 days per year

The Role

You will work as part of a development team, contributing your front-end expertiseto build the interfaces of our solutions.

Our solutions run mainly on Azure, deployedthrough Azure DevOpspipelines. Our currentstack is React and TypeScript, with Angularin parts of the estate.AI-assisted development is part of how we work. We value demonstrated experience over familiarity with the concepts.

What You'llDo

• Design and build web applications with clean componentarchitecture and state management.
• Build interfaces that stay clear and usable with complex data.
• Integrate with backend APIs and agree contracts with backend developers.
• Refine requirements with the Product Owner and functional experts, and assess technical feasibility.
• Apply software engineering best practices: clean code, automatedtesting, continuous integration and deployment.
• Measure and improve accessibility and performance.
• Take part in design and code reviews.

What We're Looking For

• 5+ years building production web applications with React and TypeScript.
• You design and buildinterfaces that are clear, consistent and easy to use, even for applications with complex data.
• Experience with several approaches to state management and rendering, and the judgementto choose between them.
• Experience consumingREST APIs and handling authentication (OAuth2 / OIDC).
• Solid delivery practice: automated testing, quality gates,DevSecOps.
• Experience in SAFe/Agile teams.
• A proactive mindsetto review requirements, challenge assumptions when necessary, and raise concerns regarding feasibility or clarity.
• Experience with AI-assisted development, including handling the problems it introduces.

Nice to have:

Angular, real-time UI (WebSockets, SSE), design systems.

What We Offer

• Work that matters to European aviation.
• Modern engineering practice and the toolingto support it, including AI assistants.

Pre-Employment & Onboarding Requirements

• Professional reference checks are mandatory before onboarding.
• A non-criminal record check may be required as part of the onboarding process.