SharePoint Developer

Who we are

We are Billennium — a global technology company delivering innovative IT solutions and services. We specialize in digital transformation, cloud solutions, and modern workplace platforms, helping organizations streamline operations and unlock business value. Our culture is built on collaboration, continuous learning, and mutual respect.

About the role

We are looking for a Senior SharePoint Developer to join a collaborative team working on digital workplace solutions based on SharePoint Online, Microsoft 365, and Azure cloud services. You will contribute to the development and maintenance of applications supporting Workforce Planning & Analytics processes. You’ll work closely with a team of experienced IT specialists, bringing your own ideas and expertise while helping shape modern, scalable cloud solutions.

Your responsibilities:

• Develop modern web applications using frontend frameworks integrated with cloud-based APIs

• Build SharePoint Online components using SPFx (React, TypeScript, Fluent UI)

• Design and develop custom APIs and backend services in Azure (App Services, Functions, Logic Apps, Cosmos DB)

• Autmate processes and maintenance using PowerShell (PnP cmdlets)

• Support integrations between on-premises systems and cloud environments

• Participate in troubleshooting and collaborate with Microsoft Support

• Ensure solutions meet internal standards and frameworks

• Work closely with stakeholders and contribute to solution design and improvements

Must have:

• Strong experience with .NET 8 / ASP.NET Core Web API and C#

• Hands-on experience with TypeScript and React (modern frameworks)

• Experience designing REST APIs and distributed web applications

• Knowledge of EF Core and SQL Server / Azure SQL (including query optimization basics)

• Familiarity with Azure services (App Service, Functions, Application Insights)

• Experience with Azure DevOps, CI/CD pipelines (YAML), and Git workflows

• Understanding of Azure AD and role-based security models

• Experience with modern UI libraries (Fluent UI and/or KendoReact)

• Knowledge of architecture patterns (CQRS, MediatR)

• Experience working in Agile/Scrum environments

• Strong problem-solving skills and full-stack mindset

Nice to have:

• Experience with Azure Functions (v4)

• Familiarity with TanStack React Query and caching strategies

• Experience with SharePoint / SPFx development

• Knowledge of performance tuning in distributed systems

• Experience improving CI/CD and release automation processes

What we offer:

• Employment flexibility (B2B or contract)

• International, long-term projects with leading global clients

• Hybrid or remote work model

• Access to the latest technologies and tools

• Professional development opportunities (training, certifications)

• Friendly and collaborative work environment

• Employee benefits package (depending on contract type)

Recruitment process:

• HR screening

• Client interview

• Decision & offer