OneStream Developer

Job Summary: WHO ARE WE? Live Nation Entertainment is the world’s leading live entertainment company, comprised of global market leaders: Ticketmaster, Live Nation Concerts, and Live Nation Media & Sponsorship. Ticketmaster is the global leader in event ticketing with over 620 million tickets sold annually and approximately 10,000 clients worldwide.  Live Nation Concerts is the largest provider of live entertainment in the world promoting more than 50,000 events annually for nearly 7,000 artists in 40+ countries. These businesses allow Live Nation Media & Sponsorship to create strategic music marketing programs that connect more than 1,200 sponsors with the 145 million fans that attend Live Nation Entertainment events each year. For additional information, visit  www.livenationentertainment.com . WHO ARE YOU? Passionate and motivated. Driven, with an entrepreneurial spirit. Resourceful, innovative, forward thinking and committed. At Live Nation Entertainment, our people embrace these qualities, so if this sounds like you then please read on!  THE ROLE We are seeking an experienced OneStream Developer to join our FinTech team and assume hands-on technical ownership of a complex OneStream implementation as it enters User Acceptance Testing (UAT) and transitions into production. This is a highly technical development role requiring extensive experience building, supporting, and enhancing custom OneStream planning applications. The successful candidate will work closely with Finance, FP&A, IT, and implementation partners to troubleshoot issues, develop new functionality, support production readiness, and become the primary technical resource responsible for the ongoing evolution of the platform. Our implementation includes sophisticated custom register-based planning solutions, multiple planning cubes, extensive C# development, enterprise integrations, and highly customized business logic. The successful candidate must be comfortable working within an existing application, understanding complex code, and delivering high-quality technical solutions. SUCCESS IN THE ROLE Success in this role means becoming the trusted technical expert for the OneStream platform by rapidly understanding the existing application, resolving complex technical issues, delivering high-quality enhancements, supporting Finance and FP&A users, and ensuring the long-term stability and evolution of a highly customized enterprise planning solution. WHAT THIS ROLE WILL DO OneStream Development Develop, maintain, and enhance custom OneStream functionality using C# and the OneStream extensibility framework. Develop and support custom planning applications, calculations, business logic, and reusable platform components. Build, troubleshoot, and optimize register-based planning solutions. Enhance Dynamic Dashboards, Workspaces, Cube Views, and user-facing planning functionality. Develop and maintain Business Rules, BRApi components, custom Business Objects, and Extender APIs. Design and optimize data movement using DataBuffers, Stage Tables, BI-Blend, and custom processing logic. Develop solutions using Custom Tables to support planning applications, metadata management, and application configuration. Technical Ownership Assume hands-on technical ownership of the OneStream application from the implementation partner. Investigate production issues and UAT defects through detailed root cause analysis. Implement enhancements, resolve defects, and improve application performance. Participate in code reviews, release deployments, regression testing, and production support. Contribute to technical documentation and knowledge transfer activities. FP&A Application Support Support Budgeting, Forecasting, Rollforward, and Reporting processes. Enhance driver-based planning models and custom planning workflows. Work closely with Finance and FP&A teams to implement new business requirements. Support complex planning models spanning multiple cubes and business divisions. Integration Development Develop and support integrations between OneStream and Oracle Fusion, Workday, Salesforce, Databricks, and other enterprise platforms. Troubleshoot Data Management processes, metadata synchronization, and data transformations. Develop REST API and SQL-based integration solutions where required. WHAT THIS PERSON WILL BRING - TECHNICAL REQUIREMENTS 10+ years of hands-on OneStream development experience. Strong experience developing custom OneStream solutions using C#. Proven experience developing and supporting custom register-based planning solutions. Experience with complex multi-cube OneStream environments. Strong understanding of FP&A processes including budgeting, forecasting, workforce planning, and management reporting. Experience with BRApi, Custom Business Objects, Extender APIs, and OneStream extensibility. Experience using Custom Tables, DataBuffers, Stage Tables, and advanced data processing techniques. Experience developing Dynamic Dashboards, Workspaces, Cube Views, and custom user interfaces. Experience with Data Management, Metadata Management, Workflow configuration, and Security. Experience supporting enterprise integrations using REST APIs, and SQL. Experience supporting applications through UAT, production deployment, and ongoing operational support. WHAT THIS PERSON WILL BRING - PREFERRED QUALIFICATIONS OneStream Certified Professional (OCP). Experience supporting enterprise-scale planning applications in production. Experience transitioning technical ownership from a system implementation partner. Experience with Application Control Manager (ACM), Solution Exchange components, and deployment management across Development, UAT, and Production environments. Technical Skills OneStream Platform C# BRApi Custom Business Rules Extender APIs Register-Based Planning Multi-Cube Architecture FP&A Applications Custom Tables DataBuffers