Senior Agentic Software Engineer

Senior Agentic Software Engineer (.NET & AI)

What You Do as a Senior Agentic Software Engineer

As a Senior Agentic Software Engineer, you work alongside passionate colleagues to develop innovative software products and AI-driven engineering workflows.

You are part of a multidisciplinary Scrum team that develops modern cloud-native applications on the Microsoft platform. In addition, you play an active role in the transformation toward AI-assisted and agentic software development.

Where software development once consisted primarily of manually writing code, today you increasingly collaborate with AI systems. You use AI tools and software agents to perform analyses, generate code, create tests, produce documentation, and automate repetitive engineering tasks.

You are responsible not only for building software but also for effectively guiding, evaluating, and improving AI-driven development processes.

Your Responsibilities

• Design and build scalable software solutions based on .NET and Azure.
• Use AI tools such as GitHub Copilot, Claude Code, or similar solutions as an integral part of your daily workflow.
• Break down complex business problems into tasks that can be efficiently executed by AI systems.
• Review, validate, and improve AI-generated code, documentation, and analyses.
• Develop and optimize AI-assisted engineering workflows.
• Collaborate with architects, product owners, and analysts to translate business requirements into high-quality software solutions.
• Actively contribute to engineering standards, best practices, and AI governance within the development team.
• Help transform the software development lifecycle by applying AI and automation in a responsible manner.

Your Profile

Are you an experienced software engineer with a passion for technology and a curiosity about the future of software development?

Then you might be the Agentic Software Engineer we are looking for.

You have a strong foundation in software engineering and understand that AI is not a replacement for engineering expertise, but a powerful accelerator for productivity and innovation.

You have experience with several of the following technologies:

• C#
• .NET 10
• CQRS
• Domain-Driven Design (DDD)
• ASP.NET Core
• RESTful APIs
• React
• Azure Cloud
• GitHub Enterprise
• GitHub Copilot
• Bicep

In addition, you recognize yourself in the following qualities:

• You think in terms of systems, architecture, and long-term maintainability.
• You are able to critically evaluate and improve AI-generated output.
• You understand that reliability, security, and quality are more important than speed alone.
• You enjoy experimenting with new AI tools and continuously seek smarter ways of working.
• You combine technical depth with pragmatism.
• You are eager to learn and help colleagues grow in their use of AI within software development.

Experience in one or more of the following areas is a plus

• AI-assisted software development
• Large Language Models (LLMs)
• Prompt engineering
• Context engineering
• AI agents and agentic workflows
• Retrieval-Augmented Generation (RAG)
• Azure AI Services
• Observability and monitoring
• DevOps and platform engineering

Why This Role?

We believe that the future of software development is not about having fewer engineers, but about engineers who can effectively leverage AI.

That is why we are looking for people who not only build excellent software but also understand how AI systems can be used to learn faster, deliver better software, and create more value for our customers.

At Reynaers, you will have the opportunity to help shape the next generation of software development, where human expertise, engineering judgment, and AI work together to achieve exceptional results.

Your New Work Environment

You will join the leading specialist in aluminium applications, where digital solutions play a crucial role in supporting our fabricators and R&D teams. Within this context, we build reliable and impactful digital applications using modern technologies and a strong focus on technological innovation.

This translates into a work environment where quality, ownership, and knowledge sharing are central, and where you, as a Senior C# Developer, actively contribute to solutions that create tangible value for both the business and the end user.

What We Offer

• A pleasant and dynamic working environment with new challenges every day.
• The opportunity to leave your mark on the future within a socially responsible and sustainable company that invests in in