OneStream Consultant

Remote from: USA
Annual salary: Undisclosed
Salary information is not provided for this position. Check our Salary Directory to estimate the average compensation for similar roles.
Department: Finance & Accounting
Employment type: Full Time,
Job posted: 30 May 2026
Apply before: 30 Jun 2026
Experience level: Midweight
Views / Applies: 36 / 2

ManTech delivers technology-driven innovation, develops game-changing solutions, and delivers mission-focused technologies for defense and federal civilian agencies.

Defense & Space
1968

Actively Hiring

AI Summary

MANTECH International Corporation is seeking a OneStream Consultant/Application Developer for a fully remote role. The position involves configuring OneStream artifacts, designing user interfaces, managing data integration, and ensuring technical quality control. Candidates need a Bachelor's degree, 5+ years of experience, and 3+ years of dedicated OneStream implementation experience. Preferred qualifications include OneStream certifications and experience with federal financial processes. US citizenship and ability to obtain a security clearance are required.

Role DNA

Job Complexity

Easy Hard

Pace & Pressure

Relaxed Fast-paced

Autonomy Level

Guided Full Ownership

Communication Load

Independent Highly Collaborative

AI Insight The role requires advanced technical skills in OneStream and SQL, plus independent problem-solving, making it challenging but not the hardest.

Salary Analysis

AI Insight The provided salary range is empty. Based on US market data for similar roles, the median salary is estimated at $115,000. This is competitive for a senior-level OneStream consultant.

Key Skills

OneStream SQL VB.NET C# Data Integration UI/UX Design Financial Systems Business Rules Data Quality Agile

Cover Letter Sample

Dear Hiring Manager,

I am writing to express my strong interest in the OneStream Consultant position at MANTECH International Corporation. With over 5 years of experience in financial systems implementation and 3+ years dedicated to OneStream, I am confident in my ability to deliver robust solutions for your clients.

My expertise includes configuring complex OneStream artifacts, developing intuitive UI/UX, and managing data integration with SQL. I have a proven track record of leading technical quality control and mentoring junior developers.

I am particularly drawn to MANTECH's mission of supporting national security through technology. My ability to obtain a security clearance and my experience with federal financial processes make me a strong fit for this role.

I look forward to the opportunity to contribute to your team and drive innovation in OneStream solutions.

Sincerely,
[Your Name]

Possible Interview Questions

Can you describe your experience with OneStream Extensible Dimensionality and how you've used it in a project?

I have extensive experience with OneStream Extensible Dimensionality (XD) to model complex business structures. For example, in a recent project, I used XD to create custom dimensions for cost centers and projects, enabling flexible reporting and data analysis. I configured member formulas and confirmation rules to ensure data integrity.

How do you approach debugging a complex OneStream business rule that is not producing expected results?

I first review the business rule logic and check for syntax errors. Then I use OneStream's diagnostic tools to trace the rule execution and examine intermediate values. I also check data sources and mapping to ensure input data is correct. If needed, I add temporary logging to isolate the issue.

Describe a time you had to integrate OneStream with an external data source. What challenges did you face?

I integrated OneStream with an ERP system using custom data connectors. The main challenge was handling data transformations and ensuring consistency. I designed transformation rules to map fields and used SQL to validate data. I also set up error handling to log and resolve mismatches.

How do you ensure the user interface you build is intuitive for end-users?

I focus on user-centered design by understanding their workflow and pain points. I use dashboards with clear navigation, advanced formatting for visual cues, and parameters for customization. I also gather feedback during UAT to refine the interface.

What is your experience with the federal PPBE process and how does it impact OneStream implementations?

I have worked on projects involving the PPBE process, which requires detailed budgeting and planning. OneStream can be configured to support multi-year planning, scenario analysis, and compliance reporting. I ensure the solution aligns with federal regulations and provides audit trails.

General information

Requisition #

R68221

Locations

USA-Remote Work

Posting Date

05/30/2026

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 a OneStream Consultant / Application Developer to join our team. This is a 100% Remote opportunity.

Responsibilities include but are not limited to:

Core Application Development: Independently configure and build complex OneStream artifacts including Cubes, Workflows, Member Formulas, Confirmation Rules, and complex Extensible Dimensionality models.
UI/UX Design: Build robust and intuitive user interfaces, developing dashboards, advanced formatting string elements, and parameters to ensure seamless end-user navigation.
Data Integration & Quality: Design, build, and maintain data connectors and transformation rules. Help manage Relational Table Storage structures and interface mappings for incoming data streams.
Technical Quality Control: Author and execute test scripts to validate application updates. Assist in identifying and fixing metadata anomalies and rules syntax errors before code moves to production.
Peer Support: Assist lower-level developers or incoming team members by offering platform guidance, participating in code reviews, and sharing best practices

Minimum Qualifications:

Bachelor’s degree in Finance, Accounting, Management Information Systems, Computer Science, or a related field.
5+ years of relevant experience in software development or financial systems implementation
3+ years of dedicated OneStream implementation experience.
1+ years of OneStream XF implementation, configuration, and optimization experience.
Proven proficiency working inside OneStream frameworks, encompassing Extensible Dimensionality, Data Management Jobs, Business Rules, and Custom Relational Tables.
Database & Querying: Strong hands-on SQL experience, with the capability to evaluate execution plans, construct relational table queries, and interpret database layer indexing structures.
Scripting: Foundational understanding of VB.Net or C# scripting within the OneStream business rules environment.

Preferred Qualifications:

Completion of the OneStream Essentials Curriculum.
Possession of the OneStream Certified Associate (OCA) – Implementation Foundations certification.
Possession of a CompTIA Security+ certification.
Experience with the federal Planning, Programming, Budgeting, and Execution (PPBE) process or financial management within the government sector.
Demonstrated capability to troubleshoot complex configuration errors independently, parsing server logs and diagnostic traces to resolve system errors.

Security Clearance Requirements:

US citizenship with the ability to obtain up to a secret level clearance.

Physical Requirements:

• Must be able to remain in a stationary position 50% of the time.

• Constantly operates a computer and other office productivity machinery.

The projected compensation range for this position is -. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at [email protected] and provide your name and contact information.

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