Senior .NET & Web Development Expert - LAV000634

We are seeking a highly experienced Senior .NET & Web Development Expert to join a GIS-focused development team within a large public-sector organization in Belgium. In this role, you will contribute to the design, development, and maintenance of business-critical web applications that support agricultural, policy, and geographic information processes. Many of these applications incorporate advanced GIS functionality and are used to support decision-making, mapping, land management, and regulatory activities. You will play a key role in delivering high-quality technical solutions, translating functional requirements into scalable architectures, and sharing technical expertise with fellow developers., * Design, develop, and maintain enterprise web applications using modern Microsoft technologies.

• Contribute to the development of new functionalities and enhancements for existing systems.
• Translate functional specifications into technical designs and implementation plans.
• Develop robust, maintainable, and scalable solutions following best practices and design patterns.
• Participate in code reviews and ensure adherence to development standards.

GIS Application Development

• Develop and maintain applications containing GIS and mapping functionality.
• Work with spatial data, geographic information systems, and mapping frameworks.
• Support applications used for land management, environmental analysis, planning, and policy support.
• Integrate GIS components into modern web applications.

Database & Integration Development

• Design and optimize database queries and data access layers.
• Work with Oracle, Oracle Spatial, SQL Server, and Entity Framework.
• Develop and maintain APIs and service-oriented integrations using ASP.NET Web API and WCF.
• Ensure efficient and secure handling of business and geographic data.

Collaboration & Technical Leadership

• Work closely with project leaders, analysts, and development teams.
• Share expertise and mentor team members on .NET, web technologies, and development best practices.
• Promote open communication, transparency, and collaboration within the team.
• Support Agile delivery processes and continuous improvement initiatives.

Must-Have

• Minimum 10 years of professional experience with .NET (C#).
• Minimum 8 years of experience working with enterprise software development technologies.

• Strong experience with:

• .NET 6+ and .NET Framework
• Entity Framework / Entity Framework Core
• ASP.NET Web API
• WCF
• C#
• Design Patterns

• Professional experience with:

• TypeScript
• Angular 18+
• Browser-side JavaScript development
• OpenLayers

• Strong knowledge of:

• GIS systems
• Oracle SQL and PL/SQL
• SQL Server
• Oracle Spatial
• Fluent Dutch communication skills (CEFR Level C2).

Preferred Skills

• Knowledge of:

• Python
• CSS
• Bootstrap
• Git source control
• Scrum methodology
• Experience working in Agile software development environments.
• Strong debugging, troubleshooting, and performance optimization skills.

Education

• Bachelor’s or Master’s degree in Information Technology, Computer Science, Engineering, or a related discipline.
• Equivalent professional experience will also be considered., You are a senior software engineer with deep expertise in Microsoft technologies and modern web development. You enjoy solving complex technical challenges, working with geographic information systems, and contributing to applications that have a direct impact on public services. You combine strong technical skills with excellent communication abilities and enjoy collaborating within multidisciplinary teams while mentoring colleagues and promoting development best practices., If you are an experienced .NET Developer with strong GIS expertise, modern web development skills, and a passion for building enterprise applications, we would love to hear from you. Apply directly via LinkedIn or submit your updated CV for consideration.