Job Description

Mission Overview:

We are seeking an experienced Back-End .NET Developer for a consultancy mission at a client site, representing Keystone Solutions. This role involves working in a dynamic environment where you will collaborate with various stakeholders to deliver high-quality and scalable applications.

Key Responsibilities:

• Design, develop, and maintain .NET framework components for back-end development using C# and .NET Core. Refine and translate requirements into technical specifications for reusable components for other development teams.
• Analyze and resolve technical issues: responsible for fixing second-level bugs and providing technical support to colleagues.
• Continuously improve development processes and software quality: keep up with trends and developments in technologies and methodologies in the field.
• Automation and continuous integration by setting up pipelines and unit tests to ensure a stable and functional development, testing, and production environment.
• Collaborate with the agile team in a SAFe environment: work closely with other developers, testers, product owners, and scrum masters to deliver software iteratively and incrementally.
• Contribute to technical documentation and knowledge sharing. Prepare technical documentation and review documentation from less experienced developers.

Required Experience and Competencies:

• Bachelor's or Master's degree in Computer Science or equivalent experience.
• At least 5+ years of experience as a .NET developer.

Language Skills:

• Fluent in French or Dutch.
• Second language: understanding and basic written and oral communication.
• English: understanding.

Working Model:

Hybrid work: 2 days in the office and 3 days remote work per week.

Behavioral Skills:

• Excellent problem-solving and analytical skills.
• Continuous learning and improvement: a mindset focused on continuous improvement and learning new technologies and methodologies.
• Good communication skills, both verbal and written. Ability to explain technical concepts clearly to technical and non-technical stakeholders.
• Collaborative and socially skilled.
• Adaptability and flexibility: ability to quickly switch between tasks and priorities. Flexibly handle unexpected changes and obstacles.
• Proactive and able to work autonomously.
• Sense of responsibility.
• Customer-oriented.

Why Join Keystone Solutions:

As a consultant at Keystone Solutions, you will engage in dynamic projects that offer diverse challenges across various client environments. You will experience turbo-charged learning opportunities and have the chance to skyrocket your ambition within our framework. Being a 'K-Stone' means bringing our core values to every engagement.

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

Duration: 03/08/2026 - 31/12/2026 5 months • (full time)

Skills required:

• Agile / Scrum - Level: Junior - Most recent: Any time
• Azure Cloud en Bicep - Level: Junior - Most recent: Any time
• Azure DevOps - Level: Junior - Most recent: Any time
• C# - Level: Confirmed - Most recent: Any time
• Dapr - Level: Junior - Most recent: Any time
• Ervaring in .net framework - Level: Confirmed - Most recent: Any time
• GRPC - Level: Junior - Most recent: Any time
• MS SQL/Oracle - Level: Junior - Most recent: Any time
• NServiceBus of ander messaging patroon - Level: Junior - Most recent: Any time
• Windows communication foundation (WCF) - Level: Junior - Most recent: Any time
• windows presentation foundation (WPF) - Level: Junior - Most recent: Any time

Language requirements:

Dutch
Level Native
English
Level Passive knowledge
French
Level Native