Senior .NET Developer – Blazor & UI

Pauwels Consulting; Brussel; Híbrido; EUR 90.000 - 120.000; Tempo integral

Resumo da vaga

Pauwels Consulting seeks a Senior .NET Developer to drive design and delivery of modern, accessible business applications. Build high-impact digital services from UI to backend, ensuring a responsive citizen and healthcare professional experience.

Lead frontend direction, implement features with .NET/Blazor, and ensure scalable, accessible UI aligned with design systems. Collaborate across teams to translate requirements into robust technical solutions and secure APIs.

Qualificações

• 8+ years backend development with C# and Agile.
• 6+ years with Modern .NET and ASP.NET Core.
• 6+ years frontend development using HTML, CSS, and Responsive Design.
• 6+ years testing and quality practices: unit testing, integration testing, and UI automation.
• 6+ years delivering projects using Git, Azure DevOps, and CI/CD pipelines.
• 5+ years implementing Security and identity protocols via OAuth 2.0, OpenID Connect, and JWT.
• 5+ years Data and integration with Entity Framework Core and SQL.
• 3+ years with Blazor and Razor components.
• 3+ years delivering solutions that meet Web accessibility and WCAG 2.1 AA.
• Fluent English with mastery of French or Dutch.

Responsabilidades

• Provide technical direction for frontend development and promote consistent architecture and coding standards.
• Develop features, reusable components, and improvements using .NET and Blazor.
• Design scalable UI structures aligned with accessibility and design systems.
• Collaborate with analysts, architects, and stakeholders to translate requirements into robust solutions.
• Integrate web apps with secure APIs and robust authentication flows.
• Ensure high code quality through peer reviews, static analysis, and testing strategies.
• Support continuous improvement of engineering practices and coach other developers.

Conhecimentos

C#

Agile

Modern .NET

ASP.NET Core

HTML

CSS

Responsive Design

Unit testing

Integration testing

UI automation

Security and identity

OAuth 2.0

OpenID Connect

JWT

Data and integration

Entity Framework Core

SQL

Blazor

Razor components

Web accessibility

WCAG 2.1 AA

English

French or Dutch

Ferramentas

Git

Azure DevOps

CI/CD pipelines

Azure Service Bus

NServiceBus

JavaScript

TypeScript

GitHub Copilot

Claude Code

Descrição da vaga

Our client, a leading organization in the public health sector, is looking for a Senior .NET Developer to drive the design and delivery of modern, accessible business applications. This role focuses on building high-impact digital services from the user interface down to the backend, ensuring a consistent and responsive experience for citizens and healthcare professionals.

• Provide technical direction for frontend development and promote consistent application architecture and coding standards.
• Develop features, reusable components, and technical improvements using modern .NET and Blazor.
• Design scalable and maintainable user interface structures that align with accessibility and design system standards.
• Collaborate with analysts, architects, and stakeholders to translate business requirements into robust technical solutions.
• Integrate web applications with secure APIs and implement robust authentication flows.
• Ensure high code quality through structured peer reviews, static analysis, and comprehensive testing strategies.
• Support the continuous improvement of engineering practices and coach other developers to foster technical excellence.

• You have 8+ years of backend development experience with C# and Agile methodologies.
• You possess 6+ years of experience with Modern .NET and ASP.NET Core.
• You bring 6+ years of experience in frontend development using HTML, CSS, and Responsive Design.
• You're experienced with 6+ years of Testing and quality practices, including unit testing, integration testing, and UI automation.
• You have 6+ years of experience managing delivery with Git, Azure DevOps, and CI/CD pipelines.
• You possess 5+ years of experience implementing Security and identity protocols via OAuth 2.0, OpenID Connect, and JWT.
• You bring 5+ years of experience in Data and integration with Entity Framework Core and SQL.
• You've worked for 3+ years with Blazor and Razor components.
• You have 3+ years of experience delivering solutions that meet Web accessibility and WCAG 2.1 AA standards.
• You are fluent in English with mastery of either French or Dutch.

Nice to Haves

• 3+ years of experience with Cloud platforms specifically Microsoft Azure.
• 2+ years of experience with Distributed systems and messaging via Azure Service Bus or NServiceBus.
• 2+ years of experience with JavaScript or TypeScript and frontend interoperability.
• 1+ years of experience using AI-assisted development tools such as GitHub Copilot or Claude Code.
• Knowledge of .NET Framework maintenance and passive knowledge of Dutch or French.

• Start date: 23/11/2026
• Duration: Initial project through 31/12/2026
• Work regime: Full-time
• Location: Brussels
• Working model: Hybrid (minimum 2 days per week onsite)
• Contract: open to both permanent employees and freelancers