Alexander L. - Senior Data Engineer & Solution Architect

Q: Where is Alexander based?

Alexander is based in Rosenheim, Germany .

Q: What languages does Alexander speak?

Alexander speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Alexander have?

Alexander has at least 11 years of experience. During this time, Alexander has worked in at least 9 different roles and for 2 different companies . The average length of individual experience is 1 year and 3 months . Note that Alexander may not have shared all experience and actually has more experience.

Q: What is Alexander's latest experience?

Alexander's most recent position is Senior Data Engineer & Solution Architect .

Q: Which industries is Alexander most experienced in?

Alexander is most experienced in industries like Information Technology (IT) and Real Estate .

Q: Which business areas is Alexander most experienced in?

Alexander is most experienced in business areas like Information Technology (IT) , Business Intelligence , and Product Development . Alexander also has some experience in Quality Assurance (QA) , Finance , and Project Management .

Q: Which industries has Alexander worked in recently?

Alexander has recently worked in industries like Information Technology (IT) .

Q: Which business areas has Alexander worked in recently?

Alexander has recently worked in business areas like Business Intelligence , Information Technology (IT) , and Product Development .

Q: What is the availability of Alexander?

Alexander is immediately available full-time for suitable projects.

Recommended expert

Rosenheim, Germany

Experience

Sep 2025 - Present

6 months

Senior Data Engineer & Solution Architect

Design and development of ETL/ELT and data warehouse / data lake solutions based on MS SQL, PostgreSQL, Oracle
Creation of architecture and solution concepts/designs based on customer requirements in the central data warehouse
Implementation of Python-based dataflows/pipelines for process automation
Contribution to the modernization of the technology stack with cloud-based services (including Azure Services and REST APIs)
Continuous development and maintenance of processes in a heterogeneous system landscape on Oracle 23ai database (incl OCI)
Support of business departments, including the implementation of cross-functional enhancements
Technical leadership in complex reporting and Big Data projects (PowerBI, Microsoft Fabric, Azure SQL/Synapse)

Sep 2022 - Sep 2025

3 years 1 month

Senior Data Engineer, Team & Project Lead

Leading the core data engineering and analytics team including business analysts, technical project lead, and requirements/stakeholder management
Design and development of ETL/ELT solutions based on SQL and PL/SQL (Oracle 19c / OCI)
Creation of architecture and solution concepts/designs based on customer requirements in the central data warehouse
Implementation of Python-based dataflows/pipelines for process automation
Contribution to the modernization of the technology stack with cloud-based services (including Azure Services and REST APIs)
Continuous development and maintenance of processes in a heterogeneous system landscape on Oracle 19c database (Exadata)
Support of business departments, including the implementation of cross-functional enhancements
Technical leadership in complex reporting and Big Data projects (PowerBI, Fabric, Azure SQL/Synapse)

Mar 2021 - Aug 2022

1 year 6 months

Python Data Engineer and Backend Developer

Design and develop data driven microservices (REST APIs) connected to machine learning pipelines

Jan 2020 - Mar 2021

1 year 3 months

Application Development Power Platform / Power BI

Design and development of Power Automation processes including data pipelines and PowerBI integration

Sep 2019 - Sep 2022

3 years 1 month

Munich, Germany

Senior Data Engineer Core Data Warehouse

Running and developing Core Data Warehouse sections like data standardization, ETL processes working on incoming customer data, integrating new features and multi tenancy structures.

Nov 2017 - Mar 2019

1 year 5 months

Munich, Germany

Business Analyst / Oracle Development

Operation master data
Analyzing existing data quality checks and standardization processes
Development of a central quality management process

Jun 2016 - Aug 2017

1 year 3 months

Business Analyst / Business Process Management

Atos Information Technology GmbH

IT and business process consulting
Data analysis and quality management in an asset & project management system

Jan 2016 - Jun 2017

1 year 6 months

Hybrid

License Management / Business Analyst in hybrid cloud structures

Concept design for SAM risk assessment service, SAM on Demand and integration to Microsoft Office 365 / Azure

Mar 2014 - Aug 2016

2 years 6 months

Munich, Germany

Database Development / Project Management

SIEMENS AG Deutschland

Analysis of business requirements, process design and project lead on data quality assurance for a proprietary application covering financial reporting and location mappings for real estate data

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (11 years) and Real Estate (2.5 years).

Information Technology

Real Estate

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (10 years), Business Intelligence (9 years), Product Development (3 years), Quality Assurance (2.5 years), Finance (2.5 years), and Project Management (2.5 years).

Information Technology

Business Intelligence

Product Development

Quality Assurance

Finance

Project Management

Summary

I am a passionate data professional skilled in designing and developing scalable ETL/ELT solutions, data warehouses, and cloud-based architectures. I leverage my expertise in SQL, Python, and modern cloud services to create robust data pipelines and integrated solutions that support cross-functional business needs.

With a background spanning data engineering, solution architecture, and technical leadership, I excel at simplifying complex data challenges and driving modernization within diverse system landscapes. I am driven by a commitment to clear, efficient processes and continuous improvement in every project I undertake.

Skills

Project Management / Team Lead +++ (>20 Years Of Experience)
Data Engineering +++ (>20 Years Of Experience)
Data Modeling +++ (>20 Years Of Experience)
Data Warehousing +++ (>20 Years Of Experience)
Etl / Elt Tools & Development +++ (>20 Years Of Experience)
Sql-bi / Power-bi +++ (>8 Years Of Experience)
Sql (Mssql, Oracle, Postgresql, Mysql) +++ (>20 Years Of Experience)
Pl/sql, Pl/pgsql +++ (>12 Years Of Experience)
Mongodb, Cassandra, Kafka ++ (>4 Years Of Experience)
Business Process Analysis +++ (>12 Years Of Experience)
Big Data Analysis +++ (>15 Years Of Experience)
Requirements Management +++ (>15 Years Of Experience)
Python ++ (> 5 Years Of Experience)
Php ++ (>20 Years Of Experience)
C# / Asp.net ++ (>12 Years Of Experience)
Perl + (>4 Years Of Experience)
Html, Javascript +++ (>15 Years Of Experience)
Microsoft Azure ++ (> 6 Years Of Experience)
Amazon Aws + (> 2 Years Of Experience)
Kubernetes, Docker ++ (> 4 Years Of Experience)
Git, Subversion, Azure Devops ++ (> 6 Years Of Experience)
Quality Management Iso 9001 ++ (>5 Years Of Experience)
Software-asset & License Management ++ (>10 Years Of Experience)
Microsoft Office +++ (>20 Years Of Experience)
Microsoft Visio +++ (>15 Years Of Experience)
Microsoft Project ++ (>7 Years Of Experience)
Microsoft Access ++ (>7 Years Of Experience)
Jira, Confluence ++ (>5 Years Of Experience)
Diverse Itil / Itsm Tools +++ (>20 Years Of Experience)
Financial Controlling +++ (>10 Years Of Experience)
Security And Company Fundamental Analysis +++ (>15 Years Of Experience)
Accounting Standards ++ (>10 Years Of Experience)
Financial Engineering (Focus Derivatives) ++ (>5 Years Of Experience)
Business And Competition Law ++ (>7 Years Of Experience)

Languages

German

Native

English

Advanced

Profile

Created

January 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Alexander based?

Alexander is based in Rosenheim, Germany.

What languages does Alexander speak?

Alexander speaks the following languages: German (Native), English (Advanced).

How many years of experience does Alexander have?

Alexander has at least 11 years of experience. During this time, Alexander has worked in at least 9 different roles and for 2 different companies. The average length of individual experience is 1 year and 3 months. Note that Alexander may not have shared all experience and actually has more experience.

What roles would Alexander be best suited for?

Based on recent experience, Alexander would be well-suited for roles such as: Senior Data Engineer & Solution Architect, Senior Data Engineer, Team & Project Lead, Python Data Engineer and Backend Developer.

What is Alexander's latest experience?

Alexander's most recent position is Senior Data Engineer & Solution Architect.

Which industries is Alexander most experienced in?

Alexander is most experienced in industries like Information Technology (IT) and Real Estate.

Which business areas is Alexander most experienced in?

Alexander is most experienced in business areas like Information Technology (IT), Business Intelligence, and Product Development. Alexander also has some experience in Quality Assurance (QA), Finance, and Project Management.

Which industries has Alexander worked in recently?

Alexander has recently worked in industries like Information Technology (IT).

Which business areas has Alexander worked in recently?

Alexander has recently worked in business areas like Business Intelligence, Information Technology (IT), and Product Development.

What is the availability of Alexander?

Alexander is immediately available full-time for suitable projects.

What is the rate of Alexander?

Alexander's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.