Full Stack .NET Developer

Join Keystone Solutions as a full-stack .NET Consultant to deliver high-quality software for our client in a bilingual (French and Dutch) environment. As a Keystone Solutions consultant, you will work on-site with the client and within their agile (Scrum) setup, contributing to the design, development, and maintenance of .NET applications while collaborating closely with developers, testers, business analysts, the product owner, and the scrum master. You will help ensure the quality and performance of new functionalities in an iterative and incremental delivery model.

• The client operates a dynamic organization where more than 160 people work within the IT department.
• The environment is bilingual with both French- and Dutch-speaking stakeholders.
• Agile ways of working (Scrum methodology) are applied.
• There are ten multidisciplinary development teams.
• Each team consists of around ten people, including the following roles: Scrum Master, Business Analysts, Developers, Test Analysts, Ops Engineer, Product Owner.

As an experienced full-stack .NET Developer (frontend and backend), you are responsible for the design, development, and maintenance of the .NET application. You work closely with other developers, testers, business analysts, the product owner, and the scrum master to deliver functionality iteratively and incrementally. You play a key role in ensuring the quality and performance of new features. All responsibilities are executed as a Keystone Solutions consultant, embedded within the client's teams and processes.

• →Design, development, and maintenance of .NET applications using C# and .NET Core. Translate functional analyses into technical analyses and assist the business analyst in validating the technical specifications of applications.
• →Analyze and resolve technical problems: take responsibility for solving second-level bugs and provide technical support to colleagues.
• →Continuously improve development processes and software quality: keep up with trends and developments in technologies and methodologies within the field.
• →Automation and continuous integration by setting up pipelines and unit tests to ensure a stable and functional development, test, and production environment.
• →Collaboration with the agile team in a SAFe environment: work closely with other developers, testers, business analysts, product owner, and scrum master to deliver software iteratively and incrementally.
• →Contribute to technical documentation and knowledge sharing within the team. Prepare technical documentation and review documentation prepared by junior developers.

• Bachelor's or Master's degree in Computer Science or equivalent through experience.
• At least 5 years of experience as a .NET developer.
• 3 years of experience working with Agile/Scrum.

• Excellent problem-solving and analytical skills.
• Continuous learning and improvement mindset: focus on continuous improvement and learning new technologies and methodologies.
• Strong communication skills, both oral and written. Ability to clearly explain technical concepts to both technical and non-technical stakeholders.
• Collaborative and socially adept.
• Adaptability and flexibility: ability to quickly switch between tasks and priorities. Flexible in dealing with unexpected changes and obstacles.
• Proactive and able to work autonomously.
• Sense of responsibility.
• Customer-oriented.

• French or Dutch: native.
• Second national language: understanding and basic written and oral communication.
• English: understanding.

• Minimum 2 days in the office and up to 3 days of telework per week.

• Main address: Willebroekkaai, 35 - 1000 Bruxelles.

• This is a consultancy mission executed at the client site through Keystone Solutions.
• As a Keystone Solutions consultant, you will operate within the client's teams, tools, and delivery cadence while upholding high standards of quality and collaboration.
• You will deliver the responsibilities listed above under the consultancy framework, working closely with stakeholders across the client's organization.

• Work on impactful challenges within a bilingual, agile environment.
• Contribute across frontend and backend, CI/CD, automation, documentation, and quality-focused delivery.

• Strengthen your engineering practice in .NET, C#, .NET Core, agile delivery, and SAFe collaboration.
• Enhance capabilities in pipelines, unit testing, and continuous integration within mature development, test, and production environments.

• Accelerate your growth by delivering iteratively with multidisciplinary teams and diverse stakeholders.
• Expand your impact through close collaboration with business analysts, product owners, scrum masters, testers, developers, and ops engineers.

• Being a K-Stone means bringing collaboration, clarity, responsibility, and customer orientation to each client project.
• You represent Keystone Solutions' commitment to quality, agility, and continuous improvement throughout the engagement.

• Operate within agile Scrum ceremonies and SAFe alignment.
• Translate functional analyses to robust technical designs and documentation.
• Ensure software quality, performance, and maintainability across the stack.

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