Title .NET Architect

Location: Brussels, Belgium

Work Model: Hybrid – 2 days/week onsite

Work Regime: Full-Time

Start Date:14 September 2026

End Date:31 December 2027

Role: Technical Architect

Languages

- Good command of Dutch and/or French.
- Good professional English is required.
- German is considered an advantage

Role Overview

We are looking for an experienced .NET Architect / .NET professional to provide technical leadership across a portfolio of enterprise applications.

The role combines solution architecture, hands-on technical expertise, modern UI architecture and technical leadership. You will work closely with Project Leaders, Product Owners, Tech Leads and development teams to define target architecture, challenge technical choices and ensure high-quality application delivery.

Key Responsibilities

- Define and communicate the target architecture for applications.
- Review and challenge functional and technical specifications.
- Ensure code quality, architectural consistency and development best practices.
- Design scalable solutions based on microservices architecture and modern development patterns.
- Provide architectural guidance across multiple development teams.
- Coordinate technical activities during Agile/Scrum sprints.
- Challenge technical choices with Tech Leads and Developers.
- Collaborate with Product Owners to challenge and refine features.
- Coach developers and facilitate collaborative technical sessions.
- Investigate complex technical issues and provide structured solutions.




- Report application progress and technical risks to project and development leadership.
- Evaluate emerging technologies and contribute to continuous technical improvement.

MUST HAVE – Essential Skills

Candidates should demonstrate strong hands-on experience in:

- .NET / Microsoft technology stack at Technical Architect or very Senior Developer level.
- Modern UI / Front-End Architecture with proven experience designing and delivering modern front-end solutions.
- Microfrontend Architecture – mandatory.
- Strong Microservices Architecture expertise.
- Strong knowledge of software architecture and development/design patterns.
- Kubernetes (K8s) – services, pods, ingress, networking and related concepts.
- Microsoft Azure cloud resources and services.
- Helm deployment.
- Azure DevOps CI/CD pipelines.
- Architecture modelling using UML and/or ArchiMate.
- Testing practices including Unit Testing, Feature Testing and Mocking.
- Experience providing technical leadership/coaching to development teams.
- Ability to lead and coordinate multiple development teams.
- Strong analytical and technical troubleshooting skills.
- English – C1 level.

SHOULD HAVE – Preferred Skills

- Strong Blazor expertise is highly preferred.




- Experience with another modern UI framework/technology can be considered where Blazor experience is limited.
- Experience working within Agile / Scrum development teams.
- Experience collaborating directly with Product Owners, Tech Leads and Architects.
- Ability to explain complex technical topics to non-technical stakeholders.
- Experience facilitating architecture and technical workshops.
- Strong prioritisation skills, including handling urgent technical issues.
- Continuous interest in emerging technologies and architecture trends.
- Knowledge of French, Dutch and/or German is an advantage.

Soft Skills

- Strong communication and stakeholder-management skills are essential. The successful candidate should be comfortable challenging technical decisions, coaching developers, influencing architecture choices and providing clear technical direction across several teams.

Interested? If you're an experienced .NET Architect / Senior .NET professional with strong expertise in .NET, Microfrontend architecture, Microservices, modern UI technologies, Kubernetes (K8s), Microsoft Azure, Helm, Azure DevOps CI/CD, UML/ArchiMate, design patterns, automated testing, and technical leadership, and you're looking to contribute to a long-term, technically challenging project in Brussels, we'd love to hear from you.

Experience with Blazor and leading/coaching multiple development teams would be a strong advantage.

Apply now or send your CV to [email protected]

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🏢 OneTech Solutions
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