Financial Systems Expert (OneStream)

OneStream Budapest, Hungary

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About the Role

We are seeking for a Financial Systems Expert (OneStream) to join our Finance and Operations team. This role perfectly combines deep technical expertise with a strong understanding of financial processes to enhance, maintain, and evolve our OneStream platform in a dynamic, global environment. You will help shape our financial planning and reporting landscape by supporting harmonized processes, enabling finance users, and contributing to practical digital and AI‑supported improvements

Key Responsibilities

Platform Ownership & Enhancement: Maintain and continuously improve the OneStream platform, focusing on financial reporting, planning, and analysis capabilities.
FP&A Enablement: Translate business requirements into robust system solutions supporting budgeting, forecasting, consolidation, and reporting processes.
Reporting & Dashboards: Design and optimize CubeViews, interactive dashboards, and global reporting structures.
Digital Innovation & AI Support: Support finance users in identifying and exploring practical AI use cases to simplify recurring activities and enhance access to insights.
System Development & Governance: Configure and extend CPM functionalities using business rules and scripting (e.g., .NET).
Testing & Governance: Ensure high-quality deployments through thorough testing and internal controls.
Data & Change Management: Maintain data integrity, hierarchies, and master data structures while tracking work transparently in Jira.

Requirements

Experience: 5–10 years of relevant professional experience in financial systems / CPM / EPM environments.
Platform Expertise: Hands-on technical experience with OneStream, HFM, or comparable platforms (configuration, development, administration).
Education: Bachelor’s or Master’s degree in, Information Systems, Computer Science, Finance, Accounting or a related field.
Skills: Strong analytical mindset, structured problem-solving, and a rule-based development/ scripting background (e.g., .NET).
Languages: Fluent in Business English with strong communication skills for finance and IT collaboration

Nice to Have

Exposure to IFRS concepts (e.g., IFRS 15, IFRS 16).
Experience with system integrations, APIs, or ETL processes.
Experience with ERP environments or large-scale finance transformation initiatives.
Exposure to AI-supported analytics, automation, or copilots in finance or enterprise systems.

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