OneStream Technical Consultant; Integration Specialist

Position Overview

We are seeking an experienced One Stream Technical Consultant with strong expertise in system integration and data management. This role is responsible for designing, developing, and supporting One Stream solutions with a primary focus on integrating external systems such as ERP platforms, data warehouses, third‑party applications, and cloud services.

You will work closely with finance, IT, and business stakeholders to ensure end‑to‑end data flow, performance, and accuracy across the enterprise. The ideal candidate has hands‑on experience with One Stream APIs, business rules, data integration workflows, and automation.

• Design, build, and maintain One Stream application components including:
• Data management workflows
• Integration pipelines
• Business rules ()
• Dashboarding and reporting solutions related to integrations
• An understanding of cube configurations, dimensions, and metadata
• Implement and optimize Data Management sequences, Extenders, and Load Rules for scalable and automated processes.
• Troubleshoot and resolve technical issues related to the One Stream platform, performance, and data accuracy.
• Lead the design and implementation of interfaces between One Stream and external systems, including:
• ERP systems (SAP, Oracle, Net Suite, Dynamics, etc.)
• Data warehouses / lakes
• HR systems
• Source GLs and transaction systems
• Cloud platforms or custom APIs
• Develop and maintain extract/transform/load (ETL) processes using One Stream tools, SQL, REST/SOAP APIs, ODBC/OLE DB connections, and flat-file integrations.
• Ensure data quality, transformation logic, and mapping rules are properly defined and validated.
• Build reusable integration frameworks and best practices for future projects.
• Collaborate with finance and IT teams to gather requirements, analyze source systems, and design scalable integration solutions.
• Advise clients or internal teams on One Stream technical standards, version upgrades, and architectural improvements.
• Mentor peers and junior consultants on One Stream development and integration patterns.
• Participate in project planning, solution design workshops, technical documentation, and testing cycles.
• Monitor data loads, schedules, and automation jobs; proactively resolve failures or performance issues.
• Document technical designs, integration specifications, and operational procedures.
• Support production environments, ensuring reliability, accuracy, and performance of One Stream processes.

• Strong hands‑on experience developing in One Stream XF, including:
• Rules ( and/or C#)
• Extenders, Load Rules, Calculation Rules, and Event Handlers
• Data Management Workflows
• Cube Views, Quick Views, and Dashboarding
• Proven experience integrating with external systems through
• SQL queries and stored procedures
• API integrations (REST/SOAP)
• ODBC/OLE DB connectors
• File‑based integrations (CSV, XML, Excel)
• Strong SQL skills and understanding of relational databases.
• Experience with financial consolidation, planning, or reporting tools.
• Understanding of finance processes (GL, AP/AR, FP&A, consolidations) is preferred.
• Ability to translate business requirements into technical solutions.

• One Stream Certified Professional (OCS, OCP, or relevant certifications).
• Experience with ERP systems such as SAP, Oracle, Net Suite, or Microsoft Dynamics.
• Knowledge of data integration tools.
• Experience working in Agile environments.
• Prior consulting experience in finance technology.

• Strong communication and documentation abilities.
• Excellent problem‑solving and analytical skills.
• Ability to manage multiple tasks and deadlines.
• Client‑facing or stakeholder management experience.