Software Developer (SharePoint / .NET Core / React)

Long-term international project delivered for a European Union Organisation based in Warsaw, centered on a business-critical operational platform built on SharePoint 2019 On-Premises supporting operational activities, reporting, and information exchange.

• Participation in at least one complete software development lifecycle.
• Proven experience developing enterprise-level software systems.
• Strong knowledge of UML and application design.
• Ability to design and develop data, business logic, and UI layers.
• Experience working in Scrum environments.
• Ability to lead and support technical teams.
• Strong technical documentation skills.
• Excellent analytical and problem-solving abilities.
• EU citizenship (mandatory).
• Valid criminal record certificate issued no more than six months prior to onboarding.
• English proficiency at B2 level (certificate required or successful language assessment).
• Bachelor's degree or higher in Computer Science, Software Engineering, IT, or related field.
• Minimum 4 years of professional IT experience.
• Minimum 2 years in a Full-Stack SharePoint Support or Developer role.
• Experience with custom SharePoint development including SDK, workflows, timer jobs, and features.
• Strong experience with Microsoft .NET, .NET Core, Microsoft SQL Server, T-SQL, Azure DevOps Pipelines.
• Experience with Web Services and REST APIs.
• Good knowledge of HTML5, CSS3 (Responsive Design), JavaScript (including ES6), TypeScript, React.
• Hold at least one intermediate-level software development certification relevant to the role or an internationally recognized equivalent.

• Design, develop, and maintain enterprise software solutions.
• Develop and support custom SharePoint solutions, including workflows, features, timer jobs, and SDK-based developments.
• Build and maintain applications using .NET / .NET Core.
• Design and develop data, business logic, and presentation layers.
• Integrate systems using Web Services and REST APIs.
• Participate in Agile/Scrum development activities.
• Produce and maintain technical documentation.
• Collaborate with technical teams and contribute to solution architecture and problem-solving activities.

• EU citizenship is mandatory.
• Candidates must provide a valid criminal record certificate issued no more than six months before onboarding.
• English proficiency at B2 level required, validated by certificate or language assessment.