OneStream Solution Architect

General information

Requisition # R66655 Locations USA-Remote Work Posting Date 03/18/2026 Security Clearance Required None Remote Type Fully Remote Time Type Full time

Description & Requirements

Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through cutting-edge technology. Since 1968, MANTECH has led in delivering advanced solutions to government intelligence, the Department of Defense, and Federal Civilian sectors. Dive into innovation in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Your journey to impactful work and rapid growth starts now—be extraordinary at MANTECH!

MANTECH seeks a motivated, career and customer-oriented OneStream Solutions Architect to join our team. This is a fully remote opportunity.

Responsibilities include but are not limited to:

• Architectural Leadership: Lead the design and delivery of technical solutions for OneStream and other market-leading CPM platforms.

• Sizing & Scoping: Lead the scoping and sizing of OneStream server, application, and database installation, configuration, and maintenance.

• Financial Close & Consolidation: Design and implement automated solutions for the Financial Close process, including intercompany eliminations, equity pick-up, and multi-currency reporting.

• MarketPlace & Enhancements: Deploy and configure OneStream MarketPlace solutions to extend platform functionality; lead technical enhancements for complex Formulation and Execution reporting tasks.

• Data Integration & Strategy: Oversee complex data integration workflows, including specialized integrations with FSMS, DHS OneNumber, and PAL Data.

• Data Governance: Assist with data management, data governance, dashboard monitoring, data quality dashboards, data controls, data lineage, and data mapping.

• System Optimization: Install, configure, analyze, tune, and optimize OneStream solutions on cloud and client infrastructure to meet specific customer requirements.

Minimum Qualification:

• Bachelor’s degree in computer science, Engineering, Information Systems, Mathematics, Business, Accounting, or a related field.

• 8+ years experience in systems design, infrastructure, tuning, cloud, development, and deployment.

• 3+ years of direct, full life cycle experience implementing or optimizing OneStream and 3+ years of SQL experience.

• Proven experience with OFC-related work and implementing MarketPlace solutions.

• 2+ years of specific OneStream XF installation, configuration, and optimization experience.

• Experience with OneStream business rules, .NET, VBA, and/or SQL.

• Ability to identify project risks, provide mitigation options, and escalate to management for resolution.

Preferred Qualifications:

• Master’s degree in computer