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I’m Szabolcs Hegyi, a professional data engineer with over 15+ years of experience in designing and implementing large-scale enterprise data warehouses and data analytic solutions. I support data integration and ETL / ELT developments using multiple technologies in both on-premise and cloud environments. I have a strong analytical mindset and attention to detail, and I’m especially skilled in root cause analysis, query performance tuning, code and cost optimization. I’m always aiming for the highest level of automation and code reuse, embracing the DRY principle. I’m a real problem-solver, a Swiss Army knife in all areas of data engineering.…I’m Szabolcs Hegyi, a professional data engineer with over 15+ years of experience in designing and implementing large-scale enterprise data warehouses and data analytic solutions. I support data integration and ETL / ELT developments using multiple technologies in both on-premise and cloud environments. I have a strong analytical mindset and attention to detail, and I’m especially skilled in root cause analysis, query performance tuning, code and cost optimization. I’m always aiming for the highest level of automation and code reuse, embracing the DRY principle. I’m a real problem-solver, a Swiss Army knife in all areas of data engineering.

Szabolcs Hegyi

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I’m Szabolcs Hegyi, a professional data engineer with over 15+ years of experience in designing and implementing large-scale enterprise data warehouses and data analytic solutions. I support data integration and ETL / ELT developments using multiple technologies in both on-premise and cloud environments. I have a strong analytical mindset and attention to detail, and I’m especially skilled in root cause analysis, query performance tuning, code and cost optimization. I’m always aiming for the highest level of automation and code reuse, embracing the DRY principle. I’m a real problem-solver, a Swiss Army knife in all areas of data engineering.…I’m Szabolcs Hegyi, a professional data engineer with over 15+ years of experience in designing and implementing large-scale enterprise data warehouses and data analytic solutions. I support data integration and ETL / ELT developments using multiple technologies in both on-premise and cloud environments. I have a strong analytical mindset and attention to detail, and I’m especially skilled in root cause analysis, query performance tuning, code and cost optimization. I’m always aiming for the highest level of automation and code reuse, embracing the DRY principle. I’m a real problem-solver, a Swiss Army knife in all areas of data engineering.

Available to hire

I’m Szabolcs Hegyi, a professional data engineer with over 15+ years of experience in designing and implementing large-scale enterprise data warehouses and data analytic solutions. I support data integration and ETL / ELT developments using multiple technologies in both on-premise and cloud environments. I have a strong analytical mindset and attention to detail, and I’m especially skilled in root cause analysis, query performance tuning, code and cost optimization. I’m always aiming for the highest level of automation and code reuse, embracing the DRY principle. I’m a real problem-solver, a Swiss Army knife in all areas of data engineering.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

German

Beginner

Work Experience

Senior Data Engineer, Database Analyst at ExxonMobil Hungary Ltd.

January 1, 2025 - Present

Supporting the Railway Modernization project to provide analytical insights into ExxonMobil’s North-American railway data. Responsibilities include database/ELT development in Snowflake with dbt Cloud, near real-time data pipelines via Debezium/Kafka, and query and cost optimization.

Data Engineer, Database Developer and Administrator at Societe Generale - ALD Automotive Hungary Ltd.

January 1, 2019 - December 31, 2024

Database management and administration (user management, deployment automation, backup/restore, storage management, performance monitoring for MSSQL Server 2019 with T-SQL). ETL tasks for data integration from various sources (SSIS, Data Factory, PowerShell). Automation/workflow development with Webcon BPM. Code standardization and best practices, query optimization, mentoring team members.

Datawarehouse Consultant, Database Developer at Erste Bank Hungary Ltd.

January 1, 2014 - December 31, 2018

Development and support of the existing DWH architecture (Oracle 11g R2 with PL/SQL and OWB). Development of business mappings and transformations for daily DWH loading (fact/dimension). Performance enhancements and BI integration (SSRS, Power BI; SAP BO/BODS; Webcon BPM).

Datawarehouse and ETL Developer at GE Money Bank Hungary Ltd.

January 1, 2010 - December 31, 2013

Green field DWH solution development (Oracle 11g R2 with PL/SQL and OWB). Data import/integration from source systems with profiling and cleansing, interface specification, and daily DWH loading processes.

Business Intelligence and Datawarehouse Consultant at DSS Consulting Ltd.

January 1, 2005 - December 31, 2009

DWH projects for Hungarian Post Office, Student Loan Centre, Volksbank, and Invitel Telecommunications. Worked with Oracle Warehouse Builder and Data Transformation Services; designed and developed reporting environments in SAP BO/BODS, universes and reports; BO administration and user training.

Business Intelligence and Datawarehouse Developer at GE Hungary Plc.

January 1, 2004 - December 31, 2005

DWH support for GE Industrial and GE Lighting; ETL development in SAP BO Data Integrator; reporting development in Business Objects (universes and reports).