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Keystone Solutions

Senior Front-End Developer

Keystone Solutions
Belgium · Full-time · Mid-Senior

Role & Responsibilities

About the job Senior Front-End Developer

  • Own the frontend code base (React+TypeScript) and drive its evolution.
  • Refactor legacy modules and deliver new greenfield features.
  • Contribute to build and maintain the BFF (.NET6) that bridges microservices (NServiceBus) and the UI.
  • Establish best practices (architecture, code reviews, docs) and mentor 23 fullstack engineers.
  • Partner with the backend architect, QA and UX/UI designer to shape solutions.
  • Suggest and implement improvements (packaging, performance, automated tests).

Tech stack

React18, TypeScript5, MaterialUI, microfrontends, .NET6 BFF, REST + NServiceBus queues, AzureDevOps (YAML pipelines), Docker/Kubernetes, ApplicationInsights.

Musthave Skills

  • 7+years professional React & TypeScript.
  • Proven technical leadership (code reviews, mentoring).
  • Solid Git workflows.
  • Clear technical writing (Confluence / markdown).
  • Fluent English.

Important Skills

  • Microfrontend architecture.
  • Packaging strategies (NPM, monorepo).
  • Web performance tuning.
  • SOLID principles & design patterns.
  • Basic autonomy in C#/.NET to tweak the BFF.

Nicetohave

MaterialUI, SignalR / realtime push, Docker/Kubernetes, Azure DevOps YAML pipelines, ApplicationInsights.

Soft traits

Adaptable to shifting priorities, proactive, customercentric, comfortable coaching remote teammates (Poland).

Key Skills

Ranked by relevance

microservices confluence designer devops react git npm
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Posted
Jul 10, 2025
Type
Full-time
Level
Mid-Senior
Location
Brussels

Industries

Information Technology & Services

Categories

Engineering Information Technology

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