Jr. OneStream Developer

Guidehouse; Arlington (VA); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Medical, Dental & Vision Insurance

401(k) Retirement Plan

Tuition Reimbursement

Employee Referral Program

Mobility Stipend

Job summary

Guidehouse is seeking a OneStream Junior Developer to support the Defense & Security Segment in Arlington, VA. You will develop OneStream applications for financial close, reconciliation, and payroll, and configure cubes, workflows, and forms.

You will collaborate with senior developers and business analysts, participate in Agile ceremonies, and contribute to data migration, testing, and documentation to ensure audit readiness and compliant financial management.

Qualifications

• Must be able to obtain and maintain a Federal or DoD Public Trust; candidates must obtain adjudication prior to onboarding.
• Bachelor’s degree in engineering, computer science, finance, accounting, data analytics, information systems, or a related field.
• ONE (1) year of relevant OneStream development experience including configuring and supporting OneStream workflows, Cube Views, Business Rules, data integration, dashboards, and reporting solutions.
• OneStream certification (any level) is a plus.
• Knowledge of federal financial management processes, audit readiness requirements, and compliance standards.
• Experience with SQL Server.
• Exposure to API integrations and automation solutions and basic knowledge of ETL tools and data warehousing concepts.
• Experience with ERP systems such as SAP, Oracle, Workday, PeopleSoft, or Microsoft Dynamics.
• Exposure to or understanding of Agile project delivery methodologies.
• Excellent communication and stakeholder engagement skills, including client-facing and technical writing.
• Ability to manage competing priorities and deliver under tight timelines with minimal supervision.
• Experience supporting parallel testing, UAT, and legacy financial data migration efforts.
• Understanding of financial reporting, budgeting, planning, and financial consolidation processes, and general knowledge of GL structures and financial data relationships.

Responsibilities

• Develop OneStream applications that focus on financial close, financial reconciliation, and payroll management.
• Configure OneStream cubes, dimensions, workflows, business rules, and forms.
• Support migration activities related to legacy tool retirement, including data loads, data validation, reconciliation, and parallel comparisons between legacy systems and OneStream.
• Support the development, testing, and documentation of OneStream business rules and system enhancements.
• Collaborate with senior developers and business analysts to implement business and technical requirements for OneStream applications that are in alignment with audit readiness and financial management compliance standards.
• Participate in Agile ceremonies, coordinate personal product backlog with senior developers, and actively participate in iterative development cycles to deliver high-quality solutions.

Skills

OneStream development

Agile project delivery

Communication

Stakeholder engagement

Prioritization

Technical writing

Education

Bachelor’s degree in engineering, computer science, finance, accounting, data analytics, information systems, or related field

Tools

SQL Server

OneStream certification

APIs integrations

ETL tools

ERP systems (SAP/Oracle/Workday/PeopleSoft/Microsoft Dynamics)

Job description

Job Family

Software Development & Support

Travel Required

Up to 10%

Clearance Required

Ability to Obtain Public Trust

What You Will Do

• Guidehouse is currently seeking a qualified OneStream Junior Developer to support Guidehouse's Defense & Security Segment. Responsibilities will include, but are not limited to:
• Develop OneStream applications that focus on financial close, financial reconciliation, and payroll management.
• Configure OneStream cubes, dimensions, workflows, business rules, and forms.
• Support migration activities related to legacy tool retirement, including data loads, data validation, reconciliation, and parallel comparisons between legacy systems and OneStream.
• Support the development, testing, and documentation of OneStream business rules and system enhancements.
• Collaborate with senior developers and business analysts to implement business and technical requirements for OneStream applications that are in alignment with audit readiness and financial management compliance standards.
• Participate in Agile ceremonies, coordinate personal product backlog with senior developers, and actively participate in iterative development cycles to deliver high-quality solutions.

What You Will Need

• Must be able to OBTAIN and MAINTAIN a Federal or DoD "PUBLIC TRUST"; candidates must obtain approved adjudication of their PUBLIC TRUST prior to onboarding with Guidehouse. Candidates with an ACTIVE PUBLIC TRUST or SUITABILITY are preferred.
• Bachelor’s degree in engineering, computer science, finance, accounting, data analytics, information systems, or a related field.
• ONE (1) years of relevant OneStream development experience including configuring and supporting OneStream workflows, Cube Views, Business Rules, data integration, dashboards, and reporting solutions.

What Would Be Nice To Have

• OneStream certification (any level).
• Completion of OneStream training programs and demonstrated hands‑on experience supporting OneStream applications.
• Knowledge of federal financial management processes, audit readiness requirements, and compliance standards.
• Experience with SQL Server.
• Exposure to API integrations and automation solutions and basic knowledge of ETL tools and data warehousing concepts.
• Experience with ERP systems such as SAP, Oracle, Workday, PeopleSoft, or Microsoft Dynamics.
• Exposure to or general understanding of Agile project delivery methodologies.
• Excellent communication and stakeholder engagement skills, including client‑facing and technical writing.
• Ability to manage competing priorities and deliver under tight timelines with minimal supervision.
• Experience supporting parallel testing, UAT, and legacy financial data migration efforts.
• Understanding of financial reporting, budgeting, planning, and financial consolidation processes, and general knowledge of GL structures and financial data relationships.

What We Offer

Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace.

Benefits include:

• Medical, Rx, Dental & Vision Insurance
• Personal and Family Sick Time & Company Paid Holidays
• Position may be eligible for a discretionary variable incentive bonus
• Parental Leave and Adoption Assistance
• 401(k) Retirement Plan
• Basic Life & Supplemental Life
• Health Savings Account, Dental/Vision & Dependent Care Flexible Spending Accounts
• Short-Term & Long-Term Disability
• Student Loan PayDown
• Tuition Reimbursement, Personal Development & Learning Opportunities
• Skills Development & Certifications
• Employee Referral Program
• Corporate Sponsored Events & Community Outreach
• Emergency Back-Up Childcare Program
• Mobility Stipend

About Guidehouse

Guidehouse is an Equal Opportunity Employer–Protected Veterans, Individuals with Disabilities or any other basis protected by law, ordinance, or regulation.

Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco.

If you have visited our website for information about employment opportunities, or to apply for a position, and you require an accommodation, please contact Guidehouse Recruiting at 1-571-633-1711 or via email at [e-mail] . All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation.

All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or [e-mail] . Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process.

If any person or organization demands money related to a job opportunity with Guidehouse, please report the matter to Guidehouse’s Ethics Hotline. If you want to check the validity of correspondence you have received, please contact [e-mail] . Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicant’s dealings with unauthorized third parties.