Senior OneStream Architect — Remote

ManTech; United States; Remote; USD 148,000 - 263,000; Full time

Benefits offered by this job

Health Insurance

Life Insurance

Paid Time Off

Holiday Pay

Disability Insurance

Retirement Savings

Learning & Development

Wellness Programs

Job summary

MANTECH International Corporation seeks a Senior OneStream Consultant to lead complex PPBE and government financial close implementations on the OneStream platform. This fully remote role involves architecting modules, defining standards, and guiding a team of developers across the lifecycle.

You will translate requirements into data models, optimize performance, manage security, and collaborate with stakeholders in an Agile/Scrum environment.

Qualifications

• Bachelor’s degree in Computer Science, Systems Engineering, Information Systems, or a related field.
• 10+ years of progress ive work experience in systems design, infrastructure, performance tuning/optimization, cloud architecture, software development, and deployment.
• 5+ years of hands-on OneStream development and technical lead experience on enterprise implementations.
• 4+ years of OneStream XF installation, environment configuration, database management, and system optimization experience.
• Advanced proficiency in object-oriented programming with VB.NET or C# for custom business rules and assemblies.
• SQL expertise (SQL Server or Oracle) for complex data manipulation, query optimization, and staging table architectures.

Responsibilities

• Translate complex functional PPBE and government financial close requirements into technical architecture blueprints, system designs, and multidimensional data models.
• Own the overall technical quality of application deliverables; establish development standards and code reviews.
• Architect, write, and optimize complex custom Business Rules using VB.NET/C#, assemblies, and SQL procedures.
• Lead system health, memory, and query tuning efforts; diagnose bottlenecks and optimize data loading and consolidation timing.
• Direct end-to-end integration strategies, including REST APIs, security roles, SSO, and ATO artifact preparation.
• Serve as SME in client-facing architecture sessions; identify technical risks and present solutions to stakeholders.
• Provide technical guidance and mentorship to OneStream Developers and Associates in an Agile/Scrum lifecycle.

Skills

OneStream development

Technical leadership

VB.NET/C# programming

SQL optimization

CPM/EPM concepts

Cloud architecture

Architectural design

Agile/Scrum

Education

Bachelor's degree

Master's degree

Tools

OneStream

SQL Server

Oracle

VB.NET

C#

Job description

MANTECH International Corporation seeks a Senior OneStream Consultant to lead complex PPBE and government financial close implementations on the OneStream platform. This fully remote role involves architecting modules, defining standards, and guiding a team of developers across the lifecycle.

You will translate requirements into data models, optimize performance, manage security, and collaborate with stakeholders in an Agile/Scrum environment.