Senior OneStream Developer & Administrator

WorkTrust Solutions; Detroit (MI); Hybrid; USD 110,000 - 160,000; Full time

Job summary

WorkTrust Solutions is seeking a senior-level OneStream Developer & Administrator to serve as the internal technical owner of our enterprise OneStream platform, taking hands-on ownership of application architecture, custom development, and system administration as we transition control in-house.

You will work directly with FP&A leadership and external partners to drive enhancements across consolidations, SIOP, cash forecasting, and upcoming modules such as Tax Provisioning, ensuring robust

Qualifications

• 5+ years of dedicated OneStream administration and development.
• Experience with multiple end-to-end OneStream implementations or major enhancements.
• Strong expertise in VB.Net, OneStream APIs, and data transformations.

Responsibilities

• Design, build, and maintain OneStream applications including custom rules, formulas, and dashboards.
• Own platform changes and work with external partners to transition development in-house.
• Build and manage data integrations across ERP systems and data warehouses.
• Support future module expansions such as Tax Provisioning and cash forecasting.
• Oversee environment management, release processes, and security structures.
• Collaborate with FP&A and IT leadership to ensure optimal performance.

Skills

OneStream administration

VB.Net development

API integration

SQL

Data modeling / dimensionality

Education

Bachelor’s degree in Computer Science / Information Systems / Finance

Official OneStream certification (plus)

Tools

VB.Net

OneStream APIs

SQL

QAD

M3

JDE

SuccessFactors

Job description

Location: Hybrid (Eastern Time Zone required)

Role Type: Full-Time / Direct Hire

Position Overview

We are seeking a senior-level OneStream Developer & Administrator to serve as the internal technical owner of our enterprise OneStream platform. In this high-visibility role, you will take direct hands-on ownership of application architecture, custom development, and system administration as we transition technical control in-house.

Working directly alongside senior finance leadership and external implementation partners, you will drive ongoing enhancements across corporate consolidations, SIOP, cash forecasting, and upcoming module builds such as Tax Provisioning. This is an ideal role for an experienced OneStream architect who thrives in a fast-paced, private equity-backed environment and enjoys solving complex data integration challenges.

Key Responsibilities

• Application Development & Architecture: Design, build, and maintain OneStream applications, including custom business rules (VB.Net / API), member formulas, extensible dimensionality, cube views, dashboards, forms, and workflows.
• Platform Ownership: Serve as the primary internal technical expert, eventually taking full ownership of application changes and development from external consulting partners and international resources.
• Integrations & Data Management: Build and manage data transformations and integrations across multiple source systems (QAD, M3, JDE, SuccessFactors, data warehouses, and complex flat-file feeds).
• Module Expansion: Support upcoming build-outs and enhancements, including Tax Provisioning (local GAAP data pulls and transformation rules), SIOP, and detailed cash forecasting models.
• Environment & Release Management: Manage dev/test/prod promotions, regression testing, patch updates, security structures, and overall environment stability.
• Cross-Functional Collaboration: Partner closely with internal FP&A/Accounting teams, IT leadership, and external integration consultants to ensure high application performance and alignment with business goals.

Key Qualifications & Requirements

• Hands-on Experience: 5+ years of dedicated OneStream administration and technical development experience across multiple full-lifecycle implementations or major enhancement cycles.
• Advanced Scripting & Development: Proven, deep technical proficiency in writing and modifying custom OneStream business rules using VB.Net and OneStream APIs (not just basic metadata/admin maintenance).
• Complex Architecture: Strong knowledge of extensible dimensionality, cube design, data management steps, and complex financial rules.
• Integration Expertise: Solid background with integration tools, SQL, multi-ERP environments, and handling non-standard data sources/flat files.
• Time Zone Alignment: Must be located in the Eastern Time Zone to ensure necessary overlap with global teams across Europe and Asia.
• Process Familiarity: Experience working within Agile/Scrum delivery frameworks is preferred.
• Education & Certifications: Bachelor’s degree in Computer Science, Information Systems, Finance, or a related field. Official OneStream certifications are a plus, but deep practical engineering experience is prioritized.

Operational Environment & Culture

• Company Setting: Fast-paced, high-growth environment operating under private equity ownership.
• Team Structure: Reports directly to the FP&A Director, working closely with the Corporate Controller and a dedicated Finance Admin peer.
• Location Model: Hybrid schedule with regular in-office collaboration at HQ in Metro Detroit.