Software Engineer & Consultant

Hi, I'm
Fabian Blum

I'm a

Full Stack Developer focused on .NET, Microservices, and Cloud Architectures.

Get in Touch Learn More
Fabian Blum

About Me

Full Stack Developer & Software Engineer

Already during my studies, I intensively dealt with the .NET stack to realize various projects. After my graduation, I used and improved this knowledge in the logistics industry and the e-commerce market.

In various projects, the focus of my work has been primarily on interfaces between systems. Furthermore, apps for Android and iOS as well as web applications were developed for customers.

Currently, my work mainly involves developing microservices with Azure Service Bus, REST APIs based on .NET Core, as well as DevOps with Kubernetes, Azure DevOps, and Terraform.

Quick Overview

Location

Witten, Germany

Degree

B.Sc. Medical Informatics

Tech Stack

.NET / C#

Experience

9+ Years

Email

Phone

+49 151 52152892

Skills

In past projects, I have used various technologies and tech stacks. The focus is definitely on the .NET stack.

Development

.NET Core / EF Core / C# 100%
Blazor 80%
HTML / CSS & JavaScript 80%
Xamarin / MAUI 70%
Angular 60%

Databases & DevOps

MSSQL 90%
MongoDB 90%
DevOps (Azure, Kubernetes, Terraform) 75%

Other Technologies

REST APIs Azure Service Bus Microservices OAuth 2.0 OpenID Connect Git Docker

Resume

I have extensive experience as a software developer with a focus on the .NET stack. My career spans across various industries, including logistics and e-commerce.

Professional Experience

2024 - Present

Senior Software Engineer

VELO DE VILLE (AT Zweirad GmbH)

  • Development of a .NET Core backend with Microsoft Dynamics NAV integration
  • REST interfaces for the VeloWallet app with focus on performance
  • MSSQL and MongoDB as database technologies
  • Standalone synchronization services between various systems
  • Microsoft Business Central integration
  • Frontend-backend integration and API design
  • OAuth 2.0 / OpenID Connect with Keycloak Server
2024 - Present

Freelance Software Developer

Freelancer, Witten

  • Full Stack .NET development and consulting
  • Identity Management Systems (OAuth 2.0 / OpenID Connect)
  • Data migration and quality assurance
2020 - 2024

Senior Software Engineer

Parfümerie Douglas, Hagen

  • Microservices for CRM and e-commerce with .NET 6+ and MongoDB
  • Integration of SAP Customer Data Cloud
  • DevOps with Azure DevOps, Kubernetes, and Terraform
2017 - 2020

Full Stack Developer

proLOGiT GmbH, Dortmund

  • Web and mobile app development (Razor Pages, ASP.NET MVC, Xamarin)
  • Development of the catkin logistics platform
  • Identity Server implementation (OpenID Connect & OAuth2)

Education

2014 - 2018

Bachelor of Science - Medical Informatics

Fachhochschule Dortmund

Learned C# / .NET in various practical projects. Additionally NoSQL databases (MongoDB, RavenDB, OrientDB) and agile development methods like SCRUM and Kanban.

2011 - 2014

Practical Informatics

Fachhochschule Dortmund

Studies through cooperation with Robert-Bosch-Berufskolleg. Changed to Medical Informatics in 2014.

2007 - 2011

Information Technology Assistant

Robert-Bosch-Berufskolleg Dortmund

School-based apprenticeship with entrance qualification for university. Focus: Java, network technology, MySQL.

Services

With my extensive experience, I am available for consultation to identify the right steps for successful project implementation and to implement them professionally.

Application Development & Consulting

Analysis & development of web applications, interfaces, and software modules based on .NET. New implementations or optimization of existing processes.

Data Exchange & Interfaces

Providing important company data at the right point in your process. Intelligent data management for new business areas.

Identity Management

Building OAuth 2.0 / OpenID Connect servers. Central login via an Identity Management System / Single-Sign-on (SSO).

Data Migrations

Targeted data preparation and documentation during system transitions. Faster value generation while improving data quality.

Performance & Quality Assurance

Optimization of existing applications, processes, and databases. Professional development methods, tests, and documentation.

Corporate Websites

Consulting & development of websites that professionally showcase your company.

Contact

If you have any questions or project requests, please feel free to contact me.

Address

Finefrauweg 11
58455 Witten
Germany

Email

Phone

+49 151 52152892

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