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Harald SchäferHS

Harald Schäfer

Software Architect / Database Specialist

€560/day
Krefeld, DE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Harald

Expert in databases, data analysis, migrations of all kinds, and programming of ETL/ELT pipelines.

Expert in developing C#, VB.NET, .NET Core, and PHP applications.

Expert in developing SQL scripts, stored procedures, functions, and performance tuning.
  • German

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Industrie-Maschienenbau
    Developer with ENGOMO JavaScript and VBA-Excel Sales Application
    MECHANICAL ENGINEERING
    September 2024 - July 2025 (10 months)
    Wiesbaden, Germany
    Programming new app extensions for an ENGOMO app in JavaScript and MS SQL Server database.

    Planning, creation, and commissioning of an Excel VBA application with MS SQL Server database, supporting the sales department.

    Tools:
    Excel, ENGOMO, SSMS 2019

    Technologies:
    MS SQL Server, JavaScript, VBA, SQL
    SQL VBA JavaScript Microsoft Excel SQL Server Management Studio (SSMS)
  • Energieunternehmen
    LFW24H Adjustments of Interfaces for Market Communication (MaKo)
    ENERGY AND UTILITIES
    August 2024 - July 2025 (11 months)
    Magdeburg, Germany
    Programming and support in the development of MaKo LFW24H interface adjustments, innovations, and extensions in the area of UTILMD master data, adjustments to the new LFW24H processes of the existing environment according to BDEW specifications, data adjustments for IS-U for transfer to the billing system, creation of unit tests.

    Tools:
    PL/SQL Developer 15/16, JIRA, Confluence


    Technologies:
    Oracle Database, PL/SQL
    Atlassian Confluence Atlassian JIRA PL/SQL Oracle PL/SQL Developer
  • Medizin
    Data Analytics, Backend and Frontend Development (Direct)
    MEDICAL
    September 2022 - March 2024 (1 year and 6 months)
    Programming and support in the development of functions and procedures for frontend development. Creation of ETL processes and DWH development, creation of unit tests.

    Tools:
    Visual Studio 2022, JetBrains Suite, Azure DevOps, SSMS 2019, Entity Framework, Portainer

    Technologies:
    .NET Core, MS SQL Server 2019, PostGreSQL 15, Windows, Linux, NGINX, RabbitMQ, Docker, C# .NET Core, Angular, JavaScript, TypeScript, SQL, PGPLSQL
    MS SQL Server .NET Core C# CI/CD PostgreSQL

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Education

  • d.R.
    d.R.

Skill set

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