Senior OneStream Developer: Lead Financial Close

Guidehouse; Arlington (VA); On-site; USD 120,000 - 190,000; Full time

Job summary

Guidehouse in Arlington, VA seeks a OneStream Senior Developer to lead end-to-end design, configuration, deployment of OneStream applications for financial close, reconciliation, and payroll management, and data migration from legacy systems.

You will mentor junior staff, collaborate with cross-functional teams, ensure audit readiness and compliance, and drive agile delivery in a federal contracting environment.

Qualifications

• Ten or more years of enterprise application development and implementation.
• Deep expertise in solution design, performance optimization, integration, and complex business rules.
• Experience with OneStream configuration and end-to-end implementation ownership.

Responsibilities

• Lead end-to-end design, development, configuration, and deployment of OneStream applications for financial close, reconciliation, and payroll.
• Develop and maintain OneStream rules, dashboards, cube views, workflows, and reporting.
• Migrate data from legacy Excel/Access into OneStream with data integrity checks.
• Collaborate with cross-functional teams to gather requirements and prioritize features.
• Mentor junior developers and manage client relationships; lead testing, deployments, and production support.

Skills

OneStream

Data migration

API integration

Agile ceremonies

Mentoring

Education

Bachelor's degree

Tools

SAP

ERP systems

Job description

Guidehouse in Arlington, VA seeks a OneStream Senior Developer to lead end-to-end design, configuration, deployment of OneStream applications for financial close, reconciliation, and payroll management, and data migration from legacy systems.

You will mentor junior staff, collaborate with cross-functional teams, ensure audit readiness and compliance, and drive agile delivery in a federal contracting environment.