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 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.