Fullstack .NET Developer

Mission Overview:

We are seeking an experienced Fullstack .NET Developer for a consultancy mission at a client site, representing Keystone Solutions. In this dynamic environment, you will collaborate with a multidisciplinary team to design, develop, and maintain .NET applications, ensuring high quality and performance.

Key Responsibilities:

• Design, develop, and maintain .NET applications using C# and .NET Core.
• Translate functional analyses into technical analyses and assist business analysts in validating technical specifications.
• Analyze and resolve technical issues, providing second-level bug fixes and technical support to colleagues.
• Continuously improve development processes and software quality by following trends in technologies and methodologies.
• Automate and ensure continuous integration by setting up pipelines and unit tests for a stable development, testing, and production environment.
• Collaborate with the agile team in a SAFe environment, working closely with developers, testers, business analysts, product owners, and scrum masters to deliver software iteratively and incrementally.
• Contribute to technical documentation and knowledge sharing within the team, preparing and reviewing documentation created by junior 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.
• 3+ years of experience working in Agile/Scrum environments.

Behavioral Skills:

• Excellent problem-solving and analytical skills.
• A mindset focused on continuous learning and improvement, eager to learn new technologies and methodologies.
• Strong communication skills, both verbal and written, with the ability to explain technical concepts clearly to both technical and non-technical stakeholders.
• Collaborative and socially skilled.
• Adaptability and flexibility, able to switch between tasks and priorities quickly, and handle unexpected changes and obstacles.
• Proactive and autonomous work style.
• Sense of responsibility and customer orientation.

Languages:

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

Work Regime:

2 days per week on-site, with the option to work remotely for the other 3 days.

Plus:

Knowledge of Oracle PL/SQL is a plus.

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

Duration: 14/09/2026 - 31/12/2026 4 months • (full time)

Skills required:

• .NET Framework - Level: Confirmed - Most recent: Any time
• Azure Cloud ervaring met CI/CD-pijplijnen in Azure DevOps - Level: Junior - Most recent: Any time
• Azure DevOps - Level: Confirmed - Most recent: Any time
• Blazor - Level: Confirmed - Most recent: Any time
• C# - Level: Confirmed - Most recent: Any time
• gRPC (gRPC Remote Procedure Calls) - Level: Junior - Most recent: Any time
• ms sql - Level: Confirmed - Most recent: Any time
• NServiceBus (of ander messaging patroon) - Level: Confirmed - Most recent: Any time
• Windows communication foundation (WCF) - Level: Junior - Most recent: Any time

Language requirements:

Dutch or French
Level Native
English
Level Passive knowledge