Senior Data Platform Consultant

SQL Server, Data Warehouse, BI and Azure Data Platform

I support organizations in the development, modernization, stabilization and documentation of business-critical data platforms.

Experience since 1994Remote & part-time availableGerman · English · Portuguese

SERVICES

Technical delivery with a focus on operations, maintainability and performance.

SQL Server Consultant

Development, administration, performance tuning, DevOps and operations for business-critical SQL Server platforms.

Data Warehouse Consulting

Data Vault, Kimball, ETL, data quality, BI delivery, Azure Data Platform and technical documentation.

Power BI Consulting

Power BI data models, DAX measures, dashboards, Row-Level Security, governance and reporting built on clean data platforms.

Azure Data Platform

Azure Data Factory, Synapse, Databricks, Microsoft Fabric, Data Lakes, DevOps, CI/CD and modern cloud data platforms.

SQL Performance Tuning

Analysis and optimization of slow SQL Server queries, indexes, execution plans, Query Store, Wait Statistics, ETL and reporting workloads.

ETL Development

Robust ETL and ELT pipelines with SSIS, T-SQL and Azure Data Factory: incremental loading, error handling, idempotency, testing and orchestration.

Data Vault Modeling

Data Vault 2.0 with hubs, links and satellites, hash keys, Raw and Business Vault, plus query-ready Kimball structures and automated loading.

BI Architecture

End-to-end BI architecture from the star schema through the semantic layer in Power BI and SSAS Tabular to DAX, Row-Level-Security and governance.

Oracle Database & PL/SQL

Oracle 8i to 19c, PL/SQL packages and procedures, performance with explain plan and hints, plus migration to SQL Server.

Python for Data Engineering

Data wrangling with pandas, exploratory analysis in Jupyter, PySpark/Databricks, Parquet and Delta Lake, and integration with Azure.

PowerShell Automation

Automating SQL Server and Azure with dbatools, CI/CD and deployment pipelines, inventory, and repeatable operational processes.

Legacy ETL & Migration

Replacing Informatica PowerCenter, Oracle Data Integrator, and Teradata BTEQ with SSIS and Azure Data Factory.

Linux Automation & Infrastructure

Shell and Python automation, systemd and cron, Proxmox, Docker, NGINX, WireGuard, and backup pipelines for reliable operations.

Technical Documentation

Operations and architecture documentation, runbooks, Confluence, data dictionaries, docs-as-code, and automated docs from metadata.

Git & Gitflow

A well-planned branching workflow with dev, test, and main, feature, bugfix, hotfix, and release branches, selective releases, Bitbucket standards, and CI/CD for SSDT, SSIS, and SSRS.

AVAILABILITY

Remote, hybrid, on-site – tailored to the project.

Remotepreferred
Hybridavailable
On-siteby arrangement
Part-time / Full-timeboth possible
Germanynationwide
EUby arrangement
Brazilproject-dependent
RoleSenior Consultant / Freelancer

Profile

Extensive project experience spanning database development, reporting and infrastructure.

I have been working in IT since 1994. My focus areas cover software development, database development, Data Warehouse, reporting, Business Intelligence and automation.

I combine development skills with operational awareness. Solutions should not only be functionally correct, but also maintainable, testable, performant, traceable and well-documented.

Specialization

Typical areas of deployment

SQL Server Consultant

Support for development, administration, performance analysis, migration, SQL Server auditing, user management and documentation.

Data Warehouse Developer

Extension of DWH architectures, staging, core and data mart layers, Data Vault, Kimball, SSIS, Oracle, ODI, Informatica PowerCenter, dbt and data models.

Power BI & Reporting

Design and implementation of Power BI data models, DAX measures, SSRS reports, dashboards and Row-Level Security.

Azure Data Engineer

Implementation of data flows using Azure Data Factory, Synapse, Azure Storage, Databricks, Parquet/Delta and DevOps pipelines.

DevOps for Database Projects

Introduction of version control, build pipelines, deployment processes and automated testing.

Technical Documentation

Building clear operational, architectural and development documentation for complex infrastructure, data and automation environments.

Technologies

Tools, platforms and methods.

Microsoft SQL ServerT-SQLSSISSSRSSSASPower BIDAXPower QueryAzure Data FactoryAzure SynapseAzure DevOpsDatabricksPythonPowerShellGitJenkinsData VaultKimballOracleODIInformatica PowerCenterPerlPHPJupyterdbtLinuxProxmoxWireGuardAuthelia

Contact

Project enquiry

Do you need support with SQL Server, Data Warehouse, BI, Azure or automation?

Remote · Hybrid · Germany · EU · Brazil · Part-time · Full-time