Cristian S.

Cristian S.

Senior BI Developer

Romania
Trusted member since 2025
20 years of experience

Cristian has contributed to high-impact projects for leading organizations such as PwC, Vodafone, and Littelfuse. His accomplishments include SSRS-to-Oracle reporting migrations, the development of Azure-based data pipelines, and the implementation of CCTV analytics dashboards using Azure Synapse and Power BI.

Known for his analytical precision and business-oriented approach, Cristian builds reusable semantic models, optimizes ETL processes, and collaborates closely with stakeholders to deliver clear, actionable insights. His solutions are scalable, maintainable, and designed to support strategic decision-making in data-driven enterprises.

Main expertise

Microsoft Power BIMicrosoft Power BI7 years
SQLSQL20 years
Azure Blob storageAzure Blob storage3 years
Data Analytics10 years
11+

Experience8

Freelance

Business Intelligence Developer and Consultant

Freelance
Information Technology (IT) and Services
Feb 2023 - Nov 2024 · 1y 9m
  • Migrated legacy SSRS reports to a new Oracle-based data warehouse for a major Romanian bank, collaborating closely with data modelers and business analysts.
  • Designed and deployed SSAS tabular models using Oracle as the data source, enabling scalable enterprise analytics.
  • Developed SSIS packages and Azure Data Factory pipelines for Littelfuse (US) to consolidate data from SAP BW, Salesforce, Azure SQL, and Excel.
  • Created Power BI datasets and dashboards for sales commissions, streamlining reporting and validation workflows in Azure DevOps.
  • Built ad hoc and automated reports for PwC departments, sourcing audit data from Aura and application insights from Datadog.
  • Designed a data warehouse and produced real-time dashboards for PwC’s internal audit operations.
  • Engineered a CCTV analytics pipeline for Lagardère Romania, decoding JSON data and generating Power BI reports for people counters, queues, shelf interaction, and face detection.
  • Applied Azure Synapse Analytics and parquet-based warehousing to support low-latency visualizations.
T-SQLT-SQL
PostmanPostman
OracleOracle
AzureAzure
Microsoft Power BIMicrosoft Power BI
5+
Mindit

Business Intelligence Developer and Consultant

Mindit
Information Technology (IT) and Services
Jun 2021 - Feb 2023 · 1y 8m
  • Built end-to-end analytics pipelines for a plant-based product company in Germany, ingesting Azure logs and Google Analytics data using Azure Data Factory.
  • Delivered Power BI dashboards embedded into client-facing admin portals via Azure Synapse and parquet file processing.
  • Automated royalty calculations for Izzardink (US), generated author reports, synced metadata with Monday.com, and exported billing data to QuickBooks.
  • Delivered full-cycle development from data ingestion to final report delivery and system integration.
T-SQLT-SQL
PostmanPostman
Microsoft Power BIMicrosoft Power BI
Azure Data FactoryAzure Data Factory
Azure SynapseAzure Synapse
MS 365 Power AppsMS 365 Power Apps
ING Hubs Romania

Business Intelligence Developer

ING Hubs Romania
Banking and Finance
Apr 2020 - Jun 2021 · 1y 2m
  • Developed SSIS ETL pipelines to ingest and transform structured data from Azure Data Lake into enterprise-ready SSAS Tabular models.
  • Designed and deployed SSAS Tabular models to support performance-optimized self-service analytics across multiple banking domains.
  • Built both paginated and interactive Power BI reports based on tabular models, tailored to meet departmental reporting needs.
  • Collaborated with product owners and QA teams to ensure business rules were accurately represented in Power BI dashboards.
  • Maintained and optimized T-SQL scripts for reusable views and reporting procedures.
  • Utilized Git and Azure DevOps for version control and continuous delivery of BI artifacts.
T-SQLT-SQL
AzureAzure
Microsoft Power BIMicrosoft Power BI
GitGit
SSASSSAS
2+
Mindit

Mindit
Information Technology (IT) and Services
Jul 2019 - Apr 2020 · 9m
  • Developed and optimized SSIS packages and SSAS tabular models to support high-volume reporting.
  • Created both automated and ad-hoc reports using Power BI and SSRS, based on business requirements.
  • Conducted quality assurance on ETL pipelines and implemented Kimball-style dimensional modeling.
  • Aligned deliverables with Agile ceremonies and reporting backlogs to ensure timely and structured delivery.
T-SQLT-SQL
AzureAzure
Microsoft Power BIMicrosoft Power BI
SSISSSIS
ETLETL
SSRS

Business Intelligence Developer

Cloud Force Romania
Cloud Computing
Oct 2018 - Apr 2019 · 6m

Cloud Force implemented Matrix42, an ITSM platform. Cristian led BI integration efforts.

  • Built staging databases and data warehouses using SSIS

  • Designed SSAS tabular models and created self-service Power BI dashboards for service desk, licensing, and asset modules

  • Delivered dashboards for operational insights consumed by Excel Power Pivot and web-based BI tools

T-SQLT-SQL
Microsoft Power BIMicrosoft Power BI
SSASSSAS
SSISSSIS

Cegeka Romania
Information Technology (IT) and Services
May 2018 - Sep 2018 · 4m

Cegeka is a European IT services provider. Cristian delivered BI customizations on Microsoft Dynamics AX and D365.

  • Built data warehouses and staging layers with SSIS

  • Created tabular models and Power BI reports aligned with ERP modules for finance and operations

  • Optimized dashboards and datasets for performance and usability

MSSQLMSSQL
Microsoft Power BIMicrosoft Power BI
SSASSSAS
SSISSSIS

Database Designer

Vodafone Romania
Telecommunications
Nov 2014 - May 2018 · 3y 6m

Vodafone is a global telecommunications provider offering mobile, broadband, and digital services. Cristian supported the enterprise BI environment by building and maintaining critical reporting infrastructure.

  • Collaborated with business analysts to define and translate reporting requirements into a scalable data warehouse model.

  • Created complex Oracle-based reports and dashboards to support operational and strategic decision-making.

  • Delivered self-service dashboards using SAP Business Objects for various business units, including marketing, customer service, and finance.

  • Generated recurring and ad-hoc reports that contributed to internal cost-saving initiatives.

  • Conducted impact analysis and modeling to support data governance and compliance needs.

  • Worked with SAS Enterprise Guide to create ETL jobs and statistical summaries on customer behavior.

OracleOracle
SASSAS
ETLETL
SAPSAP

Database Administrator

Profilux Romania
Manufacturing
Apr 2001 - Nov 2014 · 13y 7m

Profilux is a supplier and distributor of architectural profile systems. Cristian built internal ERP systems and custom reporting tools.

  • Developed the internal database system using SQL Server and MS Access

  • Built SSRS reports and trained internal staff on application use

  • Maintained and optimized replicated databases with SQL Merge Replication

SASSAS
VBAVBA
SSRS

Assessments

Engineering excellence

Cristian’s overall performance in a 90-minute live technical assessment ranks in the top 25% of vetted Senior BI Developers at Proxify.

Education

AOE
Academy of Economic Studies, Bucharest
Accounting and Database Management1997 - 2000

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