Portrait of Saeed Mohebbi

Saeed Mohebbi

BI Developer & Data Analyst · Berlin

About

I started in electrical engineering — a bachelor's degree, then several years working in the field, plus time in sales and marketing. That mix turned out to matter later: I learned how businesses actually work before I learned how to measure them.

In 2018 I took my first role as a data analyst, and it opened a door I never closed. In 2020 I was admitted to the Big Data Systems and Business Analytics programme at HSE Moscow. I studied there for a year, paused during the pandemic, and joined AVA Digital Banking as a BI developer. A year later, the war in Ukraine ended my plans to continue in Russia, and I moved to Germany to finish my education here. Alongside all of this, I completed an MBA online.

After moving to Berlin, I worked remotely as a BI consultant with Researchyar, delivering end-to-end data warehouse and analytics projects for two clients in fintech and digital streaming. Today I hold an MSc in Data Science, a PL-300 certification, and four years of hands-on experience across the Microsoft data stack. I'm currently studying software engineering at 42 Berlin and looking for my next role in BI and data in Germany.

Experience

Nov 2022 —
Aug 2024

Data & Analytics Specialist

Researchyar — BI Consultancy · Remote

  • Designed two production data warehouses: Kimball star-schema marts with a Data Vault 2.0 raw vault for auditability.
  • Built 8 enterprise Power BI reports on SSAS Tabular with DAX time intelligence and dynamic row-level security.
  • Piloted Microsoft Fabric: migrated a legacy SSIS pipeline to Fabric Pipelines with Lakehouse ingestion via Dataflow Gen2.
  • Developed an RFM segmentation model (Python + SQL) on 1.5M+ customers, contributing to a ~8% churn reduction.
  • Cut report query runtime by ~60% through T-SQL tuning and covering indexes.
Sep 2021 —
Oct 2022

Business Intelligence Developer

AVA Digital Banking — subsidiary of Iran Zamin Bank · Tehran

  • Built the bank's data warehouse: Inmon ODS plus Kimball mart with 30+ dimensions and 12 fact tables.
  • Developed 25+ SSIS packages across 8 source systems; reduced the nightly load from 4 hours to under 90 minutes.
  • Maintained SSAS Multidimensional and Tabular models; cut processing time by 40% through partitioning.
  • Built a T-SQL customer-lifetime-value framework on 1.7M customers, feeding executive Power BI dashboards.
  • Ran Power BI Report Server governance: 15+ reports serving 300+ daily users.
Nov 2018 —
Oct 2020

Junior Data Analyst

Rayaneh Tahlilgaran Ozhan — Network & Telecom Services · Tehran

  • Built the company's reporting infrastructure from scratch: SQL Server star-schema data mart consolidating ERP, Excel, and billing data.
  • Automated monthly KPI reporting with T-SQL procedures, replacing a 3-day manual Excel process.
  • Delivered Power BI dashboards for Finance and Marketing: revenue, pipeline, renewals, and profitability.
  • Identified a seasonal margin dip in 3-year sales data; the resulting pricing adjustment raised monthly revenue by 15%.

Skills

Query & scripting
SQL, T-SQL, DAX, M / Power Query, Python (pandas; currently building a multi-agent application with the Anthropic SDK, SQLite, REST APIs)
BI & reporting
Power BI Desktop & Service (PL-300), Power BI Report Server, SSRS, Microsoft Fabric semantic models
Data integration
SSIS (ETL/ELT, CDC, error handling), Azure Data Factory, Dataflow Gen2
Modelling & OLAP
SSAS Tabular (DAX) and Multidimensional (MDX), Kimball, Inmon, Data Vault 2.0, SCD 1–3
Cloud
Microsoft Fabric (Lakehouse, Pipelines, Warehouse, OneLake), Azure Synapse, ADLS Gen2
Other
Performance tuning, RFM & CLV modelling, data-quality frameworks, n8n, Power Automate, Git, Agile/Scrum

Education

Certifications & Languages

Contact

Based in Berlin and authorized to work in Germany, both as an employee and as a freelancer.