Freelancer profile translated to English.

Description

As a **German Senior Data & .NET Engineer**, I conceptualize, optimize, and implement robust data architectures, tailor-made backend systems, and business intelligence solutions. With approximately 25 years of professional experience in the Microsoft stack (MS SQL Server, T-SQL, C# / .NET), I seamlessly combine classic software development with modern data integration.

Through precisely tailored, individual software development, I automate your business processes and make complex data landscapes measurably more efficient.

Your Strategic Cost Advantage:

Due to my relocation to Mozambique, I offer you this senior expertise at an hourly rate of **€60.00 all-in**.

Additionally, I realize cost-effective open-source BI platforms (e.g., PostgreSQL, Metabase).

My Technical Service Offering:

Data Engineering & DWH Architecture:Conception and operation of data warehouse solutions, optimization of complex T-SQL queries, massive performance tuning, and structured database design.

ETL/ELT Pipelines:Setup and maintenance of stable data integrations and interfaces (SSIS, Azure Data Factory, C#-Custom-Pipelines).
Software & Backend Development:C# / .NET development (APIs, backend services, data validation) for clean, high-performance connection and processing of data sources.

Hybrid & Open-Source BI:Development of high-performance data models (Power BI) and setup of completely license-free reporting landscapes.

Collaboration, Remote Setup & Compliance:

Location & Availability:100% remote. Due to the almost identical time zone, I work fully synchronized with DACH working hours.
B2B Processing:Straightforward, direct invoicing through my established capital company (De Bernardo IT-Serviços SU Lda.).

You can find a live demo of a completely open-source-based BI system using AdventureWorks test data here:

Industry field of expertise

Languages

German
Native or bilingual
English
Fluent
Portuguese
Conversational
Spanish
Basic

Workplace preferences

Remote only

Primarily works remotely

De Bernardo IT-Serviços SU Lda
Owner / Partner & Senior Data Engineer / IT Consultant
DIGITAL AND IT
January 2025 - Today (1 year and 7 months)
Maputo, Mozambique
Focus: Strategic BI Consulting, Cloud Architectures, and Software Development

In-house Development & Technology Research
License-free Open-Source BI Landscape (Cloud): Conception and technical implementation of a comprehensive cloud DWH architecture based on PostgreSQL and Metabase, among others.
Web portal for broker processes: Architecture and agile development of a scalable web system using Blazor and MS SQL.
Mobile applications and cloud-based backend integration (Pro Bono): Conception and development of mobile applications with .NET MAUI (focus on Android & Windows) with direct integration of serverless backend structures (Firebase / Supabase).

Client Projects & Mandates:
TiBaTec GmbH (05/2025 – 10/2025) Senior BI Consultant
SQL/PostgreSQL, Power BI Semantic Models, AWS BI Stack (DMS, Glue, Redshift).
Ingenieurbüro Heckl (03/2026 – 05/2026) Senior .NET/WinUI Developer

C# .NET, WinUI 3, Windows SDK

Fuchs Solutions GmbH (01/2025 – 03/2025) Cloud Data Engineer
Azure SQL, Azure Analysis Services, Azure Data Factory
Data Engineer SQL C# Open Source Microsoft Power BI
WiBU Dienstleistungs GmbH,
IT Project Manager Business Intelligence, ETL Developer
October 2022 - September 2024 (1 year and 11 months)
22 Ahrensburg, Germany
Setup of a Data Factory in Azure
Data modeling for Azure Analysis Services
Power BI
Project Management BI Strategy Data Engineer SQL Data Architecture
dataport AöR,
.Net Software Developer as Freelancer
March 2022 - September 2022 (6 months)
Hamburg, Germany
Web development with C# ASP.NET

Creation of unit tests
Development under Scrum using Jira/Confluence
ASP.NET MVC Unit Testing Scrum