Principle OneStream Engineer Ing nieur principal OneStream

About the Role TD SYNNEX is seeking a Principal OneStream Engineer to be the senior technical authority for our global OneStream EPM platform. This hands-on leader will design, build, and govern scalable OneStream consolidations, planning, forecasting, reporting, integrations, and automation that support Finance and FP&A. You will reduce technical risk, drive platform performance and stability, mentor technical teams, and enable enterprise financial transformation. This is a high-impact role with cross-functional influence and opportunities for technical leadership and career growth.

What You’ll Do

Lead architecture, design, development, and delivery of complex OneStream solutions across consolidations, close, planning, forecasting, reconciliations, reporting, workflows, security, and automation.

Develop and review OneStream Business Rules, VB.NET extensions, APIs, and automation frameworks to meet global finance requirements.

Define and enforce technical standards, metadata design, release/deployment controls, and platform governance to ensure performance, scalability, maintainability, and security.

Design and govern enterprise integration patterns between OneStream and ERP, data warehouse, BI/analytics, and HR systems (ETL/ELT, APIs, SFTP).

Own platform performance optimization (calculations, memory, metadata), incident escalation, root-cause analysis, and remediation for high-risk production issues.

Produce architecture artifacts, runbooks, migration plans, and governance documentation to support audits, SOX/ITGC, disaster recovery, and operational continuity.

Provide hands-on technical leadership and mentorship to internal developers and third-party integrators; collaborate closely with Finance Systems leadership, IT, Infrastructure, Cybersecurity, and vendors.

What We’re Looking For

10+ years’ experience in Enterprise Performance Management (EPM) or financial systems; 5+ years with OneStream.

Expert OneStream architecture experience, including Business Rules, Extensibility, APIs, and platform administration.

Advanced VB.NET and scripting experience for OneStream customizations.

Strong SQL and relational database skills; demonstrated experience designing complex data integrations.

Proven track record optimizing application performance at enterprise scale.

Deep understanding of Financial Close, Consolidation, Planning, and Forecasting.

Bachelor’s degree in Computer Science, Engineering, Finance, or related field, or equivalent experience.

Excellent verbal and written communication skills; able to translate finance requirements into technical solutions and present to senior finance stakeholders.

Experience with cloud-hosted EPM deployments, automation tooling, and CI/CD for application releases.

Prior leadership in platform governance, SOX/ITGC controls, or large-scale EPM migrations.

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