Full Stack Engineer
Summary
Builds and maintains SharePoint-based apps and .NET/.NET Core integrations, including REST APIs and SQL Server databases, for a large international organization.
Software Developer (SharePoint) | Freelance Contract
We're looking for an experienced Software Developer with strong SharePoint expertise to join a long-term project within a large international organization.
In this role, you'll be involved in designing, developing, and supporting business-critical applications, working closely with technical and business stakeholders to deliver scalable, secure, and high-quality solutions.
What you'll do
- Design and develop SharePoint-based applications and custom solutions
- Build and maintain .NET/.NET Core applications and integrations
- Develop REST APIs and work with SQL Server databases
- Participate in architecture, analysis, testing, deployments, and support activities
- Prepare technical documentation and contribute to best development practices
- Collaborate within Agile/Scrum teams
What we're looking for
- 4+ years of professional software development experience
- Hands-on experience with SharePoint development and support
- Strong knowledge of .NET / .NET Core
- Experience with SQL Server and T-SQL
- Familiarity with Azure DevOps and CI/CD pipelines
- Experience with REST APIs and web services
- Front-end skills including JavaScript, TypeScript, React, HTML, and CSS
- Experience working throughout the full software development lifecycle
- Good communication skills and professional English (B2+)
Nice to have
- UML and software design modelling
- Experience with multi-layered enterprise applications
- Technical leadership or mentoring experience
Contract details
- Freelance engagement
- Initial 12-month contract with extension possibilities
- Full-time assignment (40h/week)
- Near-site work arrangement at the client's premises (Warsaw)
- Start: approx. January 2026