Professional Me

Ágnes Törös

agnes@nbs-solutions.tech

http://www.linkedin.com/in/agnes-toros

Data Engineer

Financial Systems & Data Automation Specialist
OneStream • Python • SQL • Bridging Finance, Data, and Engineering

Bridging finance and engineering for 15+ years. Passionate about automation, transparency, and solving real-world problems with smart, sustainable solutions.

Experience

Ingram Micro B.V., hybrid – Finance Systems Manager (Freelance) 

IT Distributor | HQ: Irvine (CA, US) | ~29,000 Employees | Finance Systems Team: ~15 FTE

May 2024 – Present – XStream Project – Senior OneStream Developer

  • Created an automated feed from XStream database, refactored transformation logic, reduced longest load time by 50%
  • Built a dashboard for finance systems team to interact with XStream SQL database
  • Developed an automated test framework to validate pipeline and minimized post-go-live issues
  • Reverse engineered two undocumented 1500+ line SQL transformations in OneStream
  • Reduced transformation time from 1-2 hours to under 30 minutes per region
  • Developed dashboard for maintaining and visualizing the account hierarchy calculation logic
  • Added interactive reconciliation reports and alerts for reporting mismatches
  • Designed a calculation tree view for finance users to explore differences across account hierarchies

Jun 2022 – Apr 2024 – OneStream Consultant – Part Time

  • Eliminated a redundant staging scenario in OneStream, reducing amount of data stored 
  • Implemented detailed logging and dashboard to monitor ERP data loads
  • Delivered dashboards to help users understand and review ERP transformations

Jan 2022 – May 2022 – OneStream Phase 3 (Customer Vendor Profitability) Project – Integration Lead

  • Rebuilt FDMEE integration using OneStream, reducing maintenance effort by 80%
  • Further optimized ERP transformations to cut run time of longest process by 60%
  • Designed a data pipeline to ingest ~1500 ERP files (~14 million records) that feed the allocation model

Nov 2020 – Dec 2021 – OneStream Phase 1 & 2 (Actuals & Budgeting) – OneStream Consultant

  • Developed an automated ERP feed for actuals in OneStream with near real-time updates 
  • Designed transformations and migrated historical data for budget and actuals with finance in an approval-only role
  • Designed two-way sync for budget figures between OneStream and Hyperion supporting the phased go-live approach

Apr 2020 – Nov 2020 – FDMEE Consultant

  • Improved ERP integration by refactoring transformation logic, reducing the longest file load time by 50%
  • Implemented centrally maintained mappings to reduce maintenance effort and increase consistency
  • Monitored the data pipeline during financial close

Volt Europa, European Data Team Netherlands – remote – Data Engineer (Volunteer)

Political Party 

Jul 2023 – Present

  • Built PySpark pipeline on Databricks for legacy CRM to support initial go-live
  • Developing Python-based daily sync on Google Cloud for phased rollout of new CRM
  • Collaborating in fully async volunteer team (5–10 people) using open-source tools

Viterra B.V., Rotterdam – hybrid – Senior EPM Consultant (Freelance)

Agricultural Company | HQ Rotterdam (NL) 

May 2022 – Jun 2023

  • Redesigned data flow from SAP to HFM in consultation with SAP architects, improving transparency and reliability
  • Created an automated data feed with mismatch, reducing manual checks

Infratects B.V./Inlumi B.V., onsite – Consultant/Senior Consultant

EPM Consulting | HQ: Utrecht (NL) | Nr of Employees: 50+

Jul 2015 – Mar 2020

  • Delivered both short- and long-term projects across industries, working with stakeholders up to C-level
  • Built custom solutions using EPM tools (Oracle FDMEE, HFM, Tagetik): email notifications, custom metadata loads, custom validations
  • Automated data loads and maintenance tasks using Python and PowerShell
  • Designed and built reports using CXO and Financial Reporting Studio
  • Worked with clients like: ING (NL), NN Group (NL), Nordea (Sweden), Posten (NO), AkzoNobel (NL), ERG (NL), FrieslandCampina (NL)

Technical skills

Languages & Scripting:
Python (pandas, numpy, matplotlib, ibis), SQL, VB.NET, Shell Script, PowerShell

Data, Cloud & Storage Technologies
Microsoft SQL Server, Oracle, Google Cloud Storage, Databricks

ETL & Automation
Windows Task Scheduler, Cron, Databricks

Reporting & Dashboarding
OneStream, Power BI, CXO (Software)

EPM & Financial Systems
EPM systems integrate data from multiple sources to support financial planning, consolidation, and reporting.
OneStream, Oracle FDMEE, Hyperion Planning, HFM, Essbase, Tagetik

Education

Coursera, online — IBM Data Engineering Professional Certificate

Oct 2021-Oct 2022

PostgreSQL, MySQL, DB2, MongoDB, Spark, Airflow, Cognos Analytics

University of Debrecen, Debrecen (HU) — MSc Business Administration

Sep 1999 – Jun 2024

Finance and Accounting

Languages

English – Fluent

Dutch – Fluent