Principle OneStream Engineer / Ingénieur principal OneStream

TD SYNNEXMississauga, ON
$236,000 - $245,000Remote

About The Position

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.

Requirements

  • 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.

Nice To Haves

  • 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.
  • Familiarity with ERP platforms (SAP, Oracle, NetSuite) and related integrations.
  • Strong attention to detail and data accuracy; proficient data-entry and record-keeping for critical financial and technical artifacts.
  • Advanced computer literacy and ability to use common office equipment, collaboration tools, and relevant enterprise applications.
  • Ability to follow instructions, work independently with minimal supervision, and proactively request clarification when needed.
  • Exceptional problem-solving, critical thinking, decision-making, and prioritization in high-pressure, deadline-driven environments.
  • Effective multitasking, time-management, and organizational skills to drive tasks to completion across competing priorities.
  • Adaptable to change, resilient under stress, and able to flex with evolving project roadmaps and business needs.
  • High professional and ethical standards, including maintaining confidentiality of sensitive data and compliance with governance requirements.
  • Strong interpersonal skills: build collaborative relationships across teams and interact confidently with managers and senior leaders.
  • Comfortable participating in extended phone/virtual sessions or wearing headsets for detailed technical discussions.

Responsibilities

  • 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.

Benefits

  • Competitive compensation
  • Professional development
  • Flexible work arrangements
  • Elective Benefits tailored to your country
  • Formal programs on leadership and professional development
  • On-demand courses
  • Global Life Empowerment Assistance Program
  • Diversity, Equity & Inclusion initiatives
  • Peer-led inclusive communities and activities
  • Local volunteering events
  • Environmental and social initiatives
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