A senior OneStream architect, on contract.
Full Clear takes corp-to-corp (C2C) and fixed-scope engagements with systems integrators, consulting firms, and finance teams that need senior OneStream capacity — design, build, upgrades, and rescue — from someone who has led design, build, and upgrade work in-house.
Grant Deker
Founder · OneStream Solution Architect
| Roles | Solution architect · lead developer |
| Engagement | C2C contract · fixed-scope SOW |
| Based | Maryville, MO · Central time · remote |
| OneStream | Application Build for Administrators |
| Cloud | AWS Solutions Architect – Associate |
| Clearance | Secret · previously held, inactive |
| Versions | Upgrades 7.3 → 8.2 and 7.4 → 9.4 |
| Availability & rate | Send the role — I’ll reply |
Drop into the seat your project needs.
Each draws on OneStream work in banking, government contracting, retail, and transportation.
Application design end to end: dimensions and extensible dimensions, cube and workflow design, security groups scoped to each workflow, and the consolidation logic behind them.
Business rules, member formulas and API-driven calculations; import and export automation; transformation rules; Smart Integration Connector; cube views and dashboards — and leading the developers and analysts doing it with you.
Version upgrades, remediation of deprecated rules and functions, and Hyperion-to-OneStream migrations, with parallel runs and UAT before cutover.
An independent read on a stalled or struggling application — design, data, rules, or delivery — and the hands-on work to fix it or hand it back to your team.
OneStream from the inside, at four enterprises.
The roles a screener will want to match against.
Penske
2024 – present
Lead OneStream Developer, Sr. Manager
Leads a team of developers and analysts. Automated imports and exports across 50+ workflows with business rules, moved security provisioning onto HR and accounting data, built financial statement dashboards for Accounting, and upgraded OneStream from 7.4 to 9.4.
Full Clear
2023 – present
Founder & Principal
Independent OneStream consultancy for implementation, optimization, and rescue work. Designed and built Basin, a consolidation and month-end close platform modeled on OneStream's concepts.
Mattress Firm
2023 – 2024
Sr. OneStream Developer
Deployed and tested 25+ custom financial models through UAT. Owned business rules, member formulas, hierarchy and application structure, security, Parcel Services, reconciliations, and TB validations. Upgraded OneStream from 7.3 to 8.2 and integrated Smart Integration Connector and Azure AD.
GDIT
2021 – 2023
Senior Business Analyst
Led the end-to-end OneStream implementation for consolidation, reporting, and planning: data integration, business rules, reports and dashboards, security groups scoped by workflow, UAT, and user training. Validated calculations with BigQuery and SQL.
Capital One
2019 – 2020
Senior Financial Analyst
Led the OneStream implementation for consolidation, reporting, and planning across seven business areas, including a nine-month Hyperion-to-OneStream migration with parallel runs.
Lockheed Martin
2017 – 2019
Financial Analyst, QSACK & Associates
Finance and data analysis for the Navy ISIS Systems contract: earned value management, Hyperion and SAP S/4HANA reporting automation, and DCMA, DCAA, and DoD compliance support.
B.B.A., BUSINESS FINANCE · JAMES MADISON UNIVERSITY
Have a OneStream role to fill?
Send the role or the SOW. You'll hear back within one business day with availability, rate, and any questions about scope.
How it works
- 01 Send the role through the contact form — choose “Subcontract / C2C role”
- 02 A reply within one business day with availability and rate
- 03 A call with your delivery lead, then a C2C agreement or SOW
Or call (703) 498-1007 · LinkedIn ↗