Senior .NET Developer Technical Analyst Software Architect

Keystone Solutions; Oost-Vlaanderen; Hybrid; EUR 70,000 - 100,000; Full time

Job summary

Keystone Solutions is recruiting a Senior .NET Developer with a strong role as a Technical Analyst and Software Architect for a client-site consultancy mission in the healthcare sector. The role combines deep technical design, development, and integration to deliver scalable and reliable applications.

You will lead architecture decisions, guide migrations, and mentor developers while ensuring alignment with business goals and regulatory requirements.

Qualifications

• Bachelor's or Master's degree in a relevant field.
• Extensive experience as a Senior .NET Developer.
• Strong knowledge of technical analysis and software architecture.
• Healthcare domain experience or affinity is an asset.
• Analytical mindset with ability to translate complex issues into sustainable solutions.
• Coaching mindset and strong communication skills.
• Native Dutch, fluent English, good French language skills.

Responsibilities

• Conduct technical analyses of existing and new IT applications.
• Design and oversee a future-oriented software architecture.
• Develop and maintain back-office and core applications, including billing and administrative processes.
• Integrate software into existing application landscapes.
• Support integrations with external platforms such as payment and exchange systems.
• Translate business functional needs into robust technical solutions.
• Guide and support technical migrations, including application, domain, or infrastructure migrations.
• Contribute to improvements in performance, security, and scalability.
• Actively participate in project management activities.
• Coach and support developers and other IT staff.
• Serve as a technical reference point within the team and organization.

Skills

NET Core

AKKA.Net

ASP.NET

Azure DevOps

C#

Entity Framework

MS SQL Server

RabbitMQ

TCP/IP

VB.NET

Visual Basic

Education

Bachelor's or Master's degree

Job description

Mission Overview:

Keystone Solutions is seeking a Senior .NET Developer with a strong role as a Technical Analyst and Software Architect for a consultancy mission at a client site. This position combines deep technical expertise with strong analytical skills to design, develop, and integrate critical applications, focusing on scalability, performance, and reliability in the healthcare context.

Responsibilities:

• Conduct technical analyses of existing and new IT applications.
• Design and oversee a future-oriented software architecture.
• Develop and maintain back-office and core applications, including billing and administrative processes.
• Integrate software into existing application landscapes.
• Support integrations with external platforms such as payment and exchange systems.
• Translate business functional needs into robust technical solutions.
• Guide and support technical migrations, including application, domain, or infrastructure migrations.
• Contribute to improvements in performance, security, and scalability.
• Actively participate in project management activities.
• Coach and support developers and other IT staff.
• Serve as a technical reference point within the team and organization.

Technical Environment:

You will work in a .NET-oriented environment with:

• Development and platforms: C#, VB.NET, Visual Basic, .NET applications and services.
• Databases: Microsoft SQL Server.
• DevOps and tooling: Azure DevOps.
• Architecture and integration: Integration of existing and new systems, supporting scalable and maintainable solutions.

Profile:

• Bachelor's or Master's degree level.
• Extensive experience as a Senior .NET Developer.
• Strong knowledge of technical analysis and software architecture.
• Experience in or affinity with healthcare is a significant asset.
• Analytical and capable of translating complex issues into sustainable solutions.
• Coaching mindset and strong communication skills.
• Language skills: Native Dutch, very good English, good French.

Context and Impact:

Work within a large healthcare and welfare organization, with applications that require a high degree of reliability and compliance, making a real impact on internal processes and service delivery.

Duration:

As soon as possible - 28/08/2029 35 months (full time)

Skills required:

• .NET Core - Level: Expert - Most recent: Any time
• AKKA.Net - Level: Expert - Most recent: Any time
• ASP.NET - Level: Expert - Most recent: Any time
• Azure DevOps - Level: Expert - Most recent: Any time
• C# - Level: Expert - Most recent: Any time
• Entity Framework - Level: Expert - Most recent: Any time
• MS SQL Server - Level: Expert - Most recent: Any time
• RabbitMQ - Level: Expert - Most recent: Any time
• TCP/IP - Level: Expert - Most recent: Any time
• VB.NET - Level: Expert - Most recent: Any time
• Visual Basic - Level: Expert - Most recent: Any time

Language requirements:

• Dutch
• Level Native or bilingual proficiency
• English
• Level Nice to have