**ManTech** seeks a motivated, career and customer-oriented **OneStream Developer** to join our team. This is a remote opportunity. **Responsibilities include but are not limited to:** + Install, configure, analyze, tune, and optimize OneStream solutions on cloud and client infrastructure that meet customer requirements + Lead scoping and sizing of OneStream server, application, and database installation, configuration, and maintenance + 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 + Assess data unit, application, and scripting configurations to make recommendations on performance improvements + Apply advanced theoretical knowledge of Computer Science and Engineering principles and concepts in creating, developing, writing, testing, troubleshooting and documenting code and interfaces for various financial management applications using OneStream tools and technologies + Perform unit, stress, system and integration testing associated with the OneStream tool and its corresponding system interface areas and provide guidance to client staff to support these testing activities and achieve successful user acceptance **Minimum Qualifications:** + Bachelor's degree in computer science, Engineering, Information Systems, Mathematics, Business, Accounting, or related degree + 8+ 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, and documentation **Preferred Qualifications:** + Master's degree in computer science, Engineering, or Information Systems + Experience with SQL Server and/or Oracle databases + VB.NET development experience and/or any object-oriented programming languages + Work experience in a professional services company and/or a consulting firm + Experience assisting with ATOs and setting up Single Sign-On for applications + CompTIA Security+ certification **Clearance Requirements:** + US Citizenship required with the ability to obtain a Public Trust **Physical Requirements:** + Must be able to remain in a stationary position 50% + Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + Frequently communicates with co-workers, management, and customers, which may involve delivering presentations + Must be able to exchange accurate information in these situations ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.