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Experienced Data Engineer & DWH Specialist | Backend-Focused | 25+ Years in Data Projects I'm a seasoned freelance Data Engineer with 25+ years of experience designing, building, and optimizing data platforms for clients across Finance, Energy, Retail, Telecom, and Pension sectors. I specialize in backend development with strong SQL (T-SQL, PL/SQL, ANSI SQL), robust ETL workflows, dimensional modeling, and cloud data integration (Azure, BigQuery). I’ve worked on complex migrations, system integrations, and enterprise-scale Data Warehouse solutions using tools like SSIS, DataStage, Oracle DB, Teradata, SQL Server, and Informatica. My focus is always on performance, reliability, and clean modeling that meets business needs. I thrive in remote teams, communicate clearly, and deliver value fast – always with a strong understanding of business context behind the data.…Experienced Data Engineer & DWH Specialist | Backend-Focused | 25+ Years in Data Projects I'm a seasoned freelance Data Engineer with 25+ years of experience designing, building, and optimizing data platforms for clients across Finance, Energy, Retail, Telecom, and Pension sectors. I specialize in backend development with strong SQL (T-SQL, PL/SQL, ANSI SQL), robust ETL workflows, dimensional modeling, and cloud data integration (Azure, BigQuery). I’ve worked on complex migrations, system integrations, and enterprise-scale Data Warehouse solutions using tools like SSIS, DataStage, Oracle DB, Teradata, SQL Server, and Informatica. My focus is always on performance, reliability, and clean modeling that meets business needs. I thrive in remote teams, communicate clearly, and deliver value fast – always with a strong understanding of business context behind the data.

Teracle-Thomas

Data Analyst, Database Developer, Programmer, +2

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Experienced Data Engineer & DWH Specialist | Backend-Focused | 25+ Years in Data Projects I'm a seasoned freelance Data Engineer with 25+ years of experience designing, building, and optimizing data platforms for clients across Finance, Energy, Retail, Telecom, and Pension sectors. I specialize in backend development with strong SQL (T-SQL, PL/SQL, ANSI SQL), robust ETL workflows, dimensional modeling, and cloud data integration (Azure, BigQuery). I’ve worked on complex migrations, system integrations, and enterprise-scale Data Warehouse solutions using tools like SSIS, DataStage, Oracle DB, Teradata, SQL Server, and Informatica. My focus is always on performance, reliability, and clean modeling that meets business needs. I thrive in remote teams, communicate clearly, and deliver value fast – always with a strong understanding of business context behind the data.…Experienced Data Engineer & DWH Specialist | Backend-Focused | 25+ Years in Data Projects I'm a seasoned freelance Data Engineer with 25+ years of experience designing, building, and optimizing data platforms for clients across Finance, Energy, Retail, Telecom, and Pension sectors. I specialize in backend development with strong SQL (T-SQL, PL/SQL, ANSI SQL), robust ETL workflows, dimensional modeling, and cloud data integration (Azure, BigQuery). I’ve worked on complex migrations, system integrations, and enterprise-scale Data Warehouse solutions using tools like SSIS, DataStage, Oracle DB, Teradata, SQL Server, and Informatica. My focus is always on performance, reliability, and clean modeling that meets business needs. I thrive in remote teams, communicate clearly, and deliver value fast – always with a strong understanding of business context behind the data.

Available to hire

Copenhagen, Denmark

Experienced Data Engineer & DWH Specialist | Backend-Focused | 25+ Years in Data Projects

I’m a seasoned freelance Data Engineer with 25+ years of experience designing, building, and optimizing data platforms for clients across Finance, Energy, Retail, Telecom, and Pension sectors. I specialize in backend development with strong SQL (T-SQL, PL/SQL, ANSI SQL), robust ETL workflows, dimensional modeling, and cloud data integration (Azure, BigQuery).

I’ve worked on complex migrations, system integrations, and enterprise-scale Data Warehouse solutions using tools like SSIS, DataStage, Oracle DB, Teradata, SQL Server, and Informatica. My focus is always on performance, reliability, and clean modeling that meets business needs.

I thrive in remote teams, communicate clearly, and deliver value fast – always with a strong understanding of business context behind the data.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

German

Beginner

Swedish

Beginner

Work Experience

Freelance DWH Consultant at PrimaGaz/Norbro

January 1, 2025 - November 3, 2025

Contracting with the purpose of moving the entire Data Warehouse from an on-prem SQL Server solution to Azure; focused on Power BI reports to determine what needs to be migrated and what can be left alone.

Oracle Consultant at Nordea

January 1, 2024 - January 1, 2024

Further development of the backend part of their cybersecurity reporting solution; changes to Power BI reports; architecture input.

Freelance BI Consultant at CapGemini/Nortura

January 1, 2022 - January 1, 2022

Maintained Nortura's SQL Server based Data Warehouse until the new one is ready; SQL queries and procedures; DTS packages; SSAS cubes for Excel reporting.

BI Consultant at C2IT

January 1, 2021 - January 1, 2021

Helping clients with their BI reporting platform needs.

Freelance BI Developer at Bankdata (7N)

January 1, 2021 - January 1, 2021

BI and SQL focused contracting; helped build a tool for banks to provide correct numbers for customer trading to the National Bank of Denmark.

Freelance BI Developer at Syddjurs Municipality (Mjølner)

January 1, 2020 - January 1, 2020

BI development focusing on SQL Server, IoT and Excel integration; part of the smart square meters project.

Freelance BI Developer at eBay (Mjølner)

January 1, 2020 - January 1, 2020

DWH focusing on Hadoop, Google Analytics and Teradata.

BI Consultant at VPT

January 1, 2019 - January 1, 2019

Consultancy on Exa data and Teradata.

Senior BI Consultant at Novicell

January 1, 2019 - January 1, 2019

Website data analysis focusing on Google Analytics; tools include SQL Server and Google BigQuery.

PFABI Specialist at PFABI

January 1, 2018 - January 1, 2018

Developing and maintaining a Microsoft Data Warehouse solution in an agile SAFe setup.

Freelance EDW Developer at SDC, Nordea, KMD, Brüel og Kjær

January 1, 2017 - January 1, 2017

Developed data warehouse solutions on top of Calypso and TMS implementations; supported BDW model; related to Oracle BI EE integration.

System Developer at COOP

January 1, 2008 - January 1, 2008

DWH solution based on Teradata, ANSI SQL and MicroStrategy; modeled data for receipts to customers.

Consultant at Oracle Denmark, Platon A/S, Miracle A/S

January 1, 2008 - January 1, 2008

BI consultancy using Oracle Warehouse Builder, DataStage, Discoverer, Business Objects and PL/SQL; Unix and Windows platforms.

IT-System Consultant at Danmarks Radio

January 1, 2005 - January 1, 2005

Sourcing systems using Oracle Warehouse Builder; building business areas in Oracle Discoverer and reports; ETL development for a new license system.

Decision Support Programmer at Orange A/S

January 1, 2003 - January 1, 2003

Responsible for Business Objects setup in the data warehouse; universes; user maintenance; reports; extensions to the warehouse model with customer service data.