Senior .NET Developer

Position: Atcon Global - Senior .NET Developer
Company description

Atcon Global is a Belgium-based IT consulting firm dedicated to empowering businesses with advanced technology solutions. We specialize in digital transformation, enterprise performance improvement, Business Intelligence, and data analytics. With a client-focused, results-driven ethos, our team delivers tailored IT solutions addressing business challenges. Our mission is to deliver measurable results, not just hours, ensuring our clients' objectives are met with excellence.

About the role

We're looking for an experienced Senior .NET Developer to join a large enterprise environment in Belgium.

In this role, you'll work closely with Solution Designers and business stakeholders to design, build and deliver high-quality software solutions within the Transport Execution Management domain. You'll translate business requirements into reliable, scalable and well-tested applications while taking ownership of the complete development lifecycle.

Beyond strong technical expertise, we're looking for someone who takes initiative, communicates effectively, enjoys working collaboratively and is comfortable taking full responsibility for delivering complete software solutions in an Agile environment.

Start date:

1/9/2026

Responsibilities

Design, develop and maintain high-quality enterprise applications using .NET / C#

Develop secure and performant .NET Core Web APIs

Build cloud-native solutions using Microsoft Azure

Write clean, maintainable and well-tested code following Clean Code, Clean Architecture and SOLID principles

Collaborate closely with Solution Designers and business stakeholders to translate business requirements into technical solutions

Contribute to unit testing and ensure high software quality

Participate in CI/CD processes using Azure Dev Ops

Work with Docker, Kubernetes and GIT as part of the software delivery lifecycle

Contribute to API integrations and relational database design

Communicate technical decisions clearly within a collaborative Agile team

Must-have requirements

Minimum 5 years of experience in .NET development

At least 3 years of experience with Azure Cloud Development

Minimum 3 years of experience developing .NET Core Web APIs

Experience writing and maintaining unit tests

Demonstrable experience applying Clean Code, Clean Architecture and SOLID principles

Strong understanding of the .NET ecosystem, including language features, LINQ, async/await, security practices, data structures and design patterns

Experience with Azure Dev Ops, Docker, Kubernetes and GIT

Strong SQL and relational database knowledge

Fluent in Dutch or French (minimum C2 level) and English (minimum C1 level)

Available to work onsite in Brussels at least 2 days per week

Nice to have

Experience working in large enterprise environments

Experience with Azure PaaS services and event-driven architectures

Experience integrating backend APIs and distributed systems

Strong focus on software quality, performance and maintainability

Experience working in Agile/Scrum environments