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Posted Jul 31, 2025

OneStream Developer

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ManTech seeks a motivated, career and customer-oriented OneStream Developer to join our team. This is a remote position. Responsibilities include but are not limited to: • Install, configure, analyze, tune, and optimize OneStream solutions on cloud and client infrastructure that meet customer requirements • Assist with data analysis, data management, data governance, dashboard monitoring, data quality dashboards, data controls, data lineage, and data mapping • Troubleshoot and optimize security models, event processes, custom dashboards, reports, business rules, and member formulas • Assist in identifying and resolving issues and challenges related to OneStream applications in collaboration with the senior consulting team • Collaborate with other members of the development team and project managers to deliver solutions that surpass client expectations while meeting project timelines • Write System Security Plan and technical documents as a part of Authority to Operate package and remediate vulnerabilities found during ATO to meet compliance standards • Implement Single Sign-On for OneStream XF application using PIV card or CAC authentication and manage upgrades of on premises OneStream XF applications and Microsoft SQL Databases Minimum Qualifications: • Bachelor’s degree in computer science, engineering, information systems, mathematics, business, accounting, or related degree • 4+ years of work experience in systems design, infrastructure, tuning/optimization, cloud, development, and deployment • 3+ years of SQL experience • 2+ years of OneStream XF installation, configuration, and optimization experience • Ability to identify project risks, provide risk mitigation options and escalate to project management to resolve project risks • Ability to contribute to various phases of the software development cycle, including in systems analysis, architecture, design, development, configuration, testing, debugging, documentation and mentor junior developers Preferred Qualifications: • Master’s degree in computer science, engineering, or information systems • VB.NET development experience and/or any object-oriented programming languages • Experience assisting with ATOs and setting up Single Sign-On for applications • Work experience in a professional services company and/or a consulting firm • CompTIA Security+ certification Clearance Requirements: • US Citizenship required with the ability to obtain a Secret clearance Physical Requirements: • Must be able to remain in a stationary position 50% • Frequently communicates with co-workers, management, and customers, which may involve delivering presentations • Must be able to exchange accurate information in these situations Apply Now