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Keystone Solutions

Senior Front-End Developer

Keystone Solutions
Belgium · Full-time · Mid-Senior

Role & Responsibilities

  • 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

design patterns microservices typescript confluence designer devops react git npm ui
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Posted
Jul 09, 2025
Type
Full-time
Level
Mid-Senior
Location
Brussels

Industries

Information Technology & Services

Categories

Engineering Information Technology

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