Stefania Dimancea-Analytics & Data Engineer
Check rate
Experience
Data Engineer
Storebox
Tech: AWS (Glue, Lambda, Redshift), Airflow, PostgreSQL, Python, PySpark, Metabase, Power BI
Delivered: Analytics-Ready Data Models • Legacy SQL to Cloud ETL Migration • Dynamic Pricing Engine
- Owned and evolved the company data warehouse end-to-end — from ingestion to transformation to analytics-ready dimensional data models on AWS Redshift.
- Collaborated with Analysts, Data Scientists, and business stakeholders to deliver scalable dimensional data models that enable self-serve analytics and streamline dashboarding in Metabase and Power BI.
- Architected end-to-end ETL/ELT pipelines on AWS (Glue, Lambda, Redshift) using Python and PySpark, orchestrated with Apache Airflow (MWAA) for reliability and observability.
- Defined and enforced data quality standards and governance practices across pipelines and the core data layer.
- Led migration of legacy SQL infrastructure into scalable AWS Glue pipelines with distributed PySpark processing, eliminating bottlenecks and reducing downtime.
- Developed a dynamic pricing engine applying automated promotional discounts based on occupancy rates, competitor pricing, and location performance tiers.
- Designed schema mappings to ingest MongoDB data into structured relational systems (Redshift/PostgreSQL).
Data Application Developer
IBM
Tech: SQL, PL/SQL, Oracle DB, Shell Scripting, Siebel CRM, Git, Jenkins, Maven
Delivered: BNP Paribas France Enterprise CRM Integration • Batch Error Optimization
- Developed and integrated core features for a large-scale Enterprise CRM system serving BNP Paribas France in a regulated financial environment.
- Executed relational database engineering using SQL, PL/SQL, and Shell scripting to optimize Oracle DB performance and schema operations.
- Built a system performance framework reducing daily data batch errors, achieving 100% client satisfaction.
- Troubleshoot and resolved high-priority production issues involving batch jobs, database operations, and web services.
- Managed application deployment across testing and production environments via Git, Jenkins, Maven, and CA Release Automation.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Real Estate and Banking and Finance.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Business Intelligence, Product Development, and Strategy.
Summary
Analytics & Data Engineer with 6+ years building end-to-end data models and ETL/ELT pipelines on AWS using SQL, Python, and PySpark. Skilled in data quality, datawarehouse development and management, enabling analytics for business teams. Completing an MSc in Data Science at TU Wien.
Skills
Data Modelling
Dbt
Dimensional Modelling
Star/Snowflake Schemas
Programming
Python
Pyspark
Sql
Kornshell
Bash
Unix Shell
Orchestration
Apache Airflow (Aws Mwaa)
Aws Glue Workflows
Databases & Dwh
Sql
Pl/Sql
Mysql
Postgresql
Nosql
Redshift
Mongodb
Oracle Db
Cloud
Aws (Glue, Lambda, Redshift, S3)
Cloud-Agnostic Architecture
Bi & Analytics
Metabase
Power Bi
Tableau
Ci/Cd & Devops
Git
Jenkins
Docker
Maven
Nexus
Ca Automation
Tools
Datagrip
Claude Code
Jira
Confluence
Servicenow
Languages
Education
Technische Universität Wien
MSc · Data Science · Vienna, Austria
ASE Bucharest
BSc · Computer Science · Bucharest, Romania
Certifications & licenses
Google Cloud Dev
IBM Agile Explorer
Siebel CRM EAI
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Stefania is based in Vienna, Austria and prefers 100% remote projects.
Stefania speaks the following languages: English (Advanced), Romanian (Advanced), French (Intermediate), German (Elementary).
Stefania has at least 7 years of experience. During this time, Stefania has worked in at least 2 different roles and for 2 different companies. The average length of individual experience is 3 years and 5 months. Note that Stefania may not have shared all experience and actually has more experience.
Based on recent experience, Stefania would be well-suited for roles such as: Data Engineer, Data Application Developer.
Stefania's most recent position is Data Engineer at Storebox.
In recent years, Stefania has worked for Storebox and IBM.
Stefania is most experienced in industries like Real Estate and Banking and Finance.
Stefania is most experienced in business areas like Information Technology, Operations, and Business Intelligence. Stefania also has some experience in Product Development and Strategy.
Stefania has recently worked in industries like Real Estate and Banking and Finance.
Stefania has recently worked in business areas like Information Technology, Operations, and Business Intelligence.
Stefania holds a Master in Data Science from Technische Universität Wien and a Bachelor in Computer Science from ASE Bucharest.
Stefania has 3 certificates. These include: Google Cloud Dev, IBM Agile Explorer, and Siebel CRM EAI.
Stefania is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 6 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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