Junior OneStream Consultant

ManTech International Corp

DC

JOB DETAILS
SALARY
$63,500–$105,900 Per Year
SKILLS
Acceptance Testing, Accounting Close, Analysis Skills, Budgeting, Business Intelligence, Computer Science, Consulting, Customer Relations, Data Analysis, Data Management, Data Modeling, Data Quality, Federal Contracts, Federal Government, Finance, Financial Management, Financial Reporting, Financial Systems, Government, Government Contracts, Government Intelligence, Information Technology & Information Systems, Internet Security, Knowledge Transfer, Leading Edge Technology, Meeting Minutes, Microsoft C# (C Sharp), Microsoft Visual Basic.NET, OLAP (OnLine Analytical Processing), Object Oriented Programming (OOP), Office Equipment, People Management, Problem Solving Skills, Process Management, Professional Services, Reporting Dashboards, Reporting Skills, SQL (Structured Query Language), Secret Clearance, Single Sign-On (SSO), Software Development, Systems Engineering, Technical Operations, Technical Writing, Testing, Unit Test, United States Citizen
LOCATION
DC
POSTED
12 days ago

General information

Requisition #

R69307

Locations

USA-Remote Work

Posting Date

07/15/2026

Security Clearance Required

None

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!

  • This is for a future opportunity*

MANTECH seeks a motivated, career and customer-oriented Junior OneStream Consultant to join our team. This is a REMOTE position.

We provide highly configured, mission-critical Planning, Programming, Budgeting, and Execution and Financial Close and Reporting solutions leveraging the OneStream platform. As an Associate OneStream Consultant, you will work alongside Senior Architects and Lead Consultants to build and configure bespoke OneStream solutions. This is a "builder" role for a technically minded professional who wants to master the OneStream platform. You will move beyond standard implementation tasks to develop specific components-such as business rules, security models, and data workflows-that enable data-driven decision-making for federal agencies.

Responsibilities include but are not limited to:

  • Configure and develop OneStream artifacts including Cube Views, Dashboards, MarketPlace Solutions, and Workflow Profiles. create reports using BI Viewer and Extensible Documents.

  • Assist in designing and maintaining Security Groups and Roles, assigning access rights to dimensions, workflows, and users to ensure data integrity.

  • Apply knowledge of VB.NET and SQL to write efficient member formulas and business rules (Finance, Parser, Connector) that enhance system functionality.

  • Design and build Data Management sequences, transformation rules, and data load artifacts; validate data accuracy using Quick Views and XFGET/XFSET.

  • Utilize OneStream error logs and trace analysis to troubleshoot and resolve development issues arising from unit testing and UAT.

  • Proactively update project documentation, including technical playbooks, operation guides, and meeting minutes to ensure knowledge transfer.

  • Consulting Mindset: Listen carefully to what others need (client and team members) and be willing and ready to respond to those needs to the best of your ability; look beyond the "easy" answer working collaboratively to bring the best Mantech has to offer to exceed others' expectations.

Minimum Qualifications:

  • Bachelor's degree in Computer Science, Systems Engineering, Information Systems, or related field.

  • 1+ year of experience in software development, financial systems implementation, or OneStream configuration.

  • Familiarity with object-oriented programming (C# or VB.NET).

  • Proficiency with SQL (Oracle or SQL Server) for data manipulation.

  • Understanding of multidimensional data (OLAP) or financial reporting concepts.

Preferred Qualifications:

  • Experience with the federal Planning, Programming, Budgeting, and Execution (PPBE) process or financial management within the government sector.

  • OneStream Certified Associate (OCA) or completion of OneStream "First Project Readiness" / "Application Build" training.

  • Certified Government Financial Manager (CGFM) or Certified Defense Financial Manager (CDFM).

  • Experience assisting with ATOs, Single Sign-On (SSO), or working in a professional services/consulting firm.

  • CompTIA Security+ certification.

Clearance:

  • US Citizenship with the ability to obtain Secret clearance.

Physical Requirements:

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

  • Constantly operates a computer and other office productivity machinery.

  • Frequently communicate with co-workers and management to exchange accurate information.

The projected compensation range for this position is $63,500.00-$105,900.00. 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 careers@mantech.com and provide your name and contact information.

About the Company

M

ManTech International Corp

Our Mission Our mission is empowering our nation through a diverse and skilled workforce securely delivering innovative technology, consulting services and digital solutions for our customers’ mission success, every day. Our Vision Our vision is Securing the Future as the most trusted partner for U.S. Defense, Intelligence and Federal Civilian customers through the power of One ManTech. When these agencies think of an essential partner for their national and homeland security needs, they think ManTech. Our Values Our values are grounded in a bedrock of truth, integrity and caring for each other and the mission. We hold steadfast to: • TRUST – We earn and protect the trust of our customers, employees and investors through an enduring foundation of respect, fairness, credibility and honoring our commitments, always. • INCLUSION – We are an inclusive, diverse and talented workforce with a passion for mission success, intellectual capital, creativity and integrity. Our high ethical standards and investment in our people build confidence with our customers. • QUALITY– We deliver exceptional quality to customers through differentiated technology solutions and an uncompromising focus on excellence, value and innovation.
COMPANY SIZE
5,000 to 9,999 employees
INDUSTRY
Other/Not Classified
FOUNDED
1968
WEBSITE
https://www.mantech.com/about