Mission Overview:

Join Keystone Solutions as a consultant on a mission for our client, a European transmission system operator, as a Medior .NET + Python Developer. You will support ongoing initiatives within existing teams and contribute directly to building a sustainable, green, and reliable energy infrastructure that stimulates economic growth and reduces the ecological footprint. Start date: immediately or no later than the end of February. As a Keystone Solutions consultant, you will work side-by-side with other contingent workers and client staff in a diverse, inclusive environment that fosters innovation, creativity, and better results.

About the Client Context:

The Belgian and European energy landscape is in full swing. As part of a European transmission system operator, our client ensures the reliability and sustainability of the electricity supply in Belgium. Only together can we make the biggest impact possible—this mission places you at the heart of the energy transition.

Consultancy Nature of Work with Keystone Solutions:

This is a consultancy mission delivered by Keystone Solutions. You will operate on-site at the client’s location and remotely as permitted, representing Keystone Solutions while aligning to the client’s standards and delivery practices. You will receive the support and guidance of Keystone Solutions’ consulting community while working closely with the client’s teams to achieve measurable impact.

Key Responsibilities (as a Keystone Solutions consultant):

• Follow the client’s standards and ensure high-quality code delivery.
• Support ongoing initiatives within existing teams at the client.
• Collaborate side-by-side with other contingent workers and client staff to advance sustainable, green, and reliable energy infrastructure.

Required Technical Skills:

• .NET 8
• Python
• SQL Server
• MongoDB
• RabbitMQ

Soft Skills:

• Good communication skills.
• Accountability for tasks and deliverables.

Languages:

• French, with a passive understanding of Flemish.
• Flemish, with a passive understanding of French.
• English.

Location and Travel:

• Location: Client site in Brussels, with the option to work from home up to three days a week.
• In case of travels to Germany, the client will cover all costs.

Work Authorization (for non-EU candidates):

• Possess a work permit allowing the individual to work in Belgium.
• Hold a valid residence permit confirming the right of residence in Belgium.

Dynamic Projects:

As a Keystone Solutions consultant, you will start on this impactful mission in the energy sector and gain exposure to diverse challenges. Over time, you may have the opportunity to tackle varied client engagements across industries and technologies, broadening your expertise while delivering tangible results.

Turbo-Charged Learning and Development:

Keystone Solutions empowers your growth through hands-on learning in mission-critical environments, access to experienced consultants, knowledge-sharing communities, and support for continuous professional development. You will sharpen your expertise in .NET 8, Python, messaging (RabbitMQ), and data platforms (SQL Server, MongoDB) while delivering secure, maintainable solutions.

Ambition Skyrocketing within a Consultancy Framework:

Your ambition is our priority. Keystone Solutions fosters career progression through varied client engagements, meaningful feedback, and opportunities to expand responsibilities. You will develop the consulting skills and technical depth needed to become a trusted advisor in complex, high-impact contexts.

Keystone Solutions Values in Action:

Being a K-Stone means bringing excellence, integrity, collaboration, and measurable client impact to every engagement. We champion diversity and inclusion and expect our consultants to embody these values on-site with the client, ensuring trust, transparency, and outstanding delivery from day one.

Why This Mission Is Attractive:

• There’s something electric in the air with this mission! An interesting project at a reference player within the energy sector: the client encourages innovation and collaboration. Within this mission you will be at the forefront of the energy transition, with the chance to contribute to ground-breaking technologies designed to accelerate this transition. It is a one-of-a-kind opportunity to demonstrate your skills and further develop your competences within this project.
• Focus on well-being at work: the client invests in a positive work culture in which your well-being is central.
• A diverse team of co-workers: the client places high value on diversity and inclusion. You will join a diverse and passionate team that enjoys sharing knowledge and leading the way towards a more sustainable future together.

Role-Specific Impact Across Client Projects:

As a Medior .NET + Python Developer, you will apply modern .NET 8 and Python practices, build reliable integrations using RabbitMQ, and design resilient data solutions with SQL Server and MongoDB. Within Keystone Solutions’ consultancy model, you will leverage these skills to deliver high-quality code aligned to the client’s standards while benefiting from the support of our consulting community.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.