OneStream Senior Developer

We are currently supporting an exciting project within the pharmaceutical industry, looking for a Senior OneStream Developer to play a key role in the design, development, and optimization of a modern financial consolidation platform.

• Design, develop, and enhance OneStream solutions for financial consolidation, reporting, and ESG topics
• Implement business rules (C#) for calculations, validations, and data transformations
• Build and maintain dashboards, cube views, and reports
• Develop and optimize data integration and ETL processes
• Support the full lifecycle from design to go-live and post-go-live support
• Collaborate closely with finance stakeholders to translate business requirements into technical solutions
• Ensure system performance, data integrity, and adherence to best practices
• Contribute to documentation, testing, and continuous system improvements

• Bachelor’s degree in Computer Science, Information Systems, or a related field
• 5+ years of hands-on experience with OneStream implementation and development
• Strong expertise in:
  • C# (Business Rules)
  • Financial consolidation processes
  • Data integration and ETL
• Experience building:
  • Dashboards
  • Reports
  • Workflows and security models
• Solid knowledge of SQL and modern integration methods (APIs, connectors)
• Strong analytical and problem-solving skills with a business-oriented mindset
• Excellent communication skills and ability to work with cross-functional teams
• Fluent in English 

• Long-term project within a global, highly innovative environment
• Opportunity to work on a state-of-the-art financial consolidation platform
• High-impact role combining technology and finance
• Flexible hybrid working model