Medior .NET Developer

HumanInTech; Melle; Hybride; EUR 45 000 - 70 000; Plein temps

Résumé du poste

HumanInTech is seeking a skilled .NET developer to join our Belgian customer portal product team in Melle. You will design, develop and support web applications, delivering functional extensions while maintaining existing software in an Agile setup.

Required are 3+ years in .NET, strong Azure experience, RESTful services, Angular 2+, and a Bachelor’s or higher. The role offers full-time engagement with flexible remote work and an option to freelance or be employed.

Qualifications

• At least 3 years of .NET-based application development.
• At least 4 years with .NET Core.
• At least 4 years with C# and ASP.NET.
• At least 4 years with Entity Framework.
• At least 4 years with Azure services.
• Experience with Azure API Management.
• Azure App Services.
• Azure Data Factory.
• Azure Service Fabric.
• SAML/OAuth federated authentication.
• WCF/SOAP and REST/Web API.
• Relational databases such as Oracle/SQL.
• Unit testing.
• Agile development methodology.
• Front-end skills: JavaScript, HTML, CSS.
• Angular 2+.

Responsabilités

• Develop, maintain and optimise web applications within the customer portal.
• Support existing applications in project, maintenance and incident work.
• Deliver functional extensions aligned with business and technical requirements.
• Resolve incidents and technical problems within agreed service levels.
• Perform technical analyses and propose sustainable solutions.

Connaissances

.NET development

C#

ASP.NET

Entity Framework

Azure

Azure API Management

Azure App Services

Azure Data Factory

Azure Service Fabric

SAML/OAuth

REST/Web API

SQL/Oracle

Unit testing

Agile

JavaScript

HTML/CSS

Angular 2+

WCF/SOAP

ITIL

Formation

Bachelor's degree

Outils

Oracle/SQL

Description du poste

What you will do

You will join the customer portal product team at a Belgian energy network operator, responsible for developing and supporting digital applications for end customers. Your work will combine new functional extensions with maintenance and optimisation of existing web applications.

Together with your colleagues, you will carry end-to-end responsibility for delivering customer value, combining analysis, design, development, testing and support within an Agile environment. The work consists of approximately two-thirds project work and one-third maintenance and incident follow-up.

Analysis and design

• Contribute to functional analyses and translate business requirements into technical solutions
• Prepare technical designs for new functionalities
• Evaluate the technical feasibility of new requests and change requests
• Actively contribute to the continuous improvement of application architecture and code quality

Development and support

• Develop, maintain and optimise web applications within the customer portal
• Support existing applications in project, maintenance and incident work
• Deliver functional extensions in line with business and technical requirements
• Resolve incidents and technical problems within agreed service levels
• Perform technical analyses and propose sustainable solutions

Quality and testing

• Develop high-quality, maintainable and performant software
• Write and execute unit tests
• Support integration, system and acceptance testing
• Apply development guidelines, best practices and internal IT standards
• Document analyses, developments and technical solutions

Collaboration and product work

• Work actively with the product owner, analysts, developers, testers and other stakeholders
• Participate in Agile ceremonies such as sprint planning, refinements, reviews and retrospectives
• Support release activities and contribute to a controlled rollout of new functionalities
• Actively contribute to knowledge sharing within the team

Change and release management

• Apply existing change and release processes meticulously
• Support the preparation, execution and follow-up of releases
• Monitor quality, risks and stability during changes in production environments

What we are looking for

Technical skills

• At least 3 years of demonstrable experience in developing .NET-based applications
• At least 4 years of extensive demonstrable knowledge and experience with .NET Core
• At least 4 years of extensive demonstrable knowledge and experience with backend technologies: C# and ASP.NET
• At least 4 years of extensive demonstrable experience with ORM: Entity Framework
• At least 4 years of demonstrable experience with development on Azure
• Demonstrable experience with Azure API Management
• Demonstrable experience with Azure App Services
• Demonstrable experience with Azure Data Factory
• Demonstrable experience with Azure Service Fabric
• Demonstrable experience with federated authentication with SAML / OAuth
• Demonstrable experience with web services (WCF / SOAP and Web API / REST)
• Knowledge and experience with relational databases (e.g. Oracle, SQL)
• Knowledge and experience with unit testing
• Knowledge and experience with Agile development methodology
• Experience with web development using common front-end technologies and frameworks: JavaScript, HTML and CSS
• Experience with Angular 2 or higher
• Familiarity with process-driven organisations based on ITIL process work, specifically the incident, change and release processes

Analytical skills

• Strong analytical and problem-solving ability
• Able to translate complex issues into concrete solutions
• Quickly gain insight into existing applications and processes
• Eye for quality, performance and maintainability of solutions

Personal skills

• Strong sense of responsibility and ownership
• Able to work independently within agreed objectives
• Proactive and results-oriented attitude
• Accurate and structured working method
• Strong communication skills
• Team player who actively contributes to positive collaboration
• Eager to learn and willing to build new technology and domain knowledge

Language

• Dutch at European CEFR level C2

The setting

This assignment starts on 4 November 2026 and runs for one year, with the possibility of extension. You will work full-time in Melle, with the possibility of remote work in consultation with the team lead. Occasionally, work outside office hours is needed for releases.

You will be part of the customer portal product team within the customer operations domain, working on a central web portal where customers can register, log in and use online services.

You can join us for this assignment as a freelancer or as an employee of HumanInTech. Same role, same team. If you join as an employee, your employment continues beyond this assignment. When it ends, we’ll work together to find your next assignment.

Location: Melle, East Flanders

Employer / contracting party: HumanInTech

Applications close (Brussels time): October 1, 2026 at 2:00 AM

Engagement: Freelance or employed by HumanInTech

Working hours: Full-time

Experience: 3–5 years or more

Education: Bachelor's or more

Published: September 2026