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Kurt (Dipl. ing. (fh)) B.

Self-employed in Software Development / Databases / Testing

Leonstein, Austria

Experience

Jan 2025 - Dec 2025
1 year

Backend / Microservice Developer, DevOps, Test Automation

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • .NET Core 8, 9, C#
  • Microservices, Clean Architecture, MediatR, CQRS
  • GraphQL, REST, SDL
  • Azure DevOps CI/CD pipelines, Azure Service Bus, RabbitMQ, Kafka, Azure App Configuration, Azure Key Vault, Azure Kubernetes Service (AKS)
  • Splunk dashboards, custom metrics, Elasticsearch, Kibana (ELK)
  • Azure SQL Databases, Azure Cosmos DB
  • Architecture decisions, event governance, COP (Backend, DevOps, Frontend, Test Automations)
  • AI Copilot, creating test templates
  • Scheduler: Hangfire, Quartz
  • Automated unit and integration tests
  • Automated end-to-end tests with Playwright
  • Automation with BDD, Gherkin, Cucumber
  • Tracking of shipments; GIS/GPS data, geofence, geo search, position tracking, asset positions
  • Jira, Confluence
  • High-performance message-oriented architecture (~xx e6 messages/month/service)
  • Structured logging with Serilog, OpenTelemetry, Splunk; application monitoring
  • Integration of GPS-based position data sources into Azure Data Lake
Jun 2024 - Dec 2024
7 months

Backend / Microservice Developer, DevOps

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • Portal for dealers to manage and buy parts, spare parts, claims
  • Containerization: Kubernetes (AKS with Helm charts), Docker
  • MS SQL Server with Entity Framework
  • Azure Entra ID, Keycloak, OpenID Connect, IAM
  • Scheduler: Hangfire, Quartz
  • Scrum in an international distributed team
  • C#, .NET Core 8, 9, Entity Framework, Visual Studio 2022
  • GraphQL with Hot Chocolate, Azure Service Bus, Open Policy Agent (OPA, OPAL), Fluent, Autor Bogus, Grafana (Loki, Jaeger)
  • Azure DevOps CI/CD pipelines, Azure Functions, Azure Event Hub, Azure Service Bus (MassTransit), Azure Feature Management, Bicep
  • Microservices with Clean Code architecture, CQRS, SOLID, design patterns
  • CI/CD testing strategy: unit, integration tests with xUnit, Substitute, WireMockServer
  • SonarQube, SonarCloud
  • SAP ERP, SAP CX
  • Structured logging with Serilog, OpenTelemetry, Grafana; application monitoring
Sep 2023 - Jun 2024
10 months

Backend / Full-stack / Microservice Developer, DevOps

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • MES (manufacturing execution systems): NEXEED, OpCon, Product Setup Management, Packaging Control, IdBuilder, Part Traceability, ERP Connectivity, Setup Specs
  • Containerization: Kubernetes (AKS, Rancher), Docker, Helm, Terraform
  • MS SQL Server, Oracle, MySQL with Entity Framework
  • Keycloak SSO, OpenID Connect, MFA, IAM
  • SAP interface: S/4HANA, SAP OData endpoints; basic SAP ABAP RAP, SAP Fiori, Business Application Studio, SAP UI5, JavaScript frontend
  • Scrum in an international distributed team, MIRO, SAFe with ~200 developers
  • C#, .NET Core 6, 7, 8, Entity Framework, Visual Studio 2022
  • RabbitMQ AMQP messaging
  • Refactoring towards microservices, Clean Code architecture, CQRS, Fluent, MediatR, behaviors, SOLID, design patterns
  • Workflow Foundation with custom coded activities
  • WPF, WCF
  • CI/CD testing strategy: unit, integration, system, security, performance tests with Locust; BDD with Gherkin, Cucumber; end-to-end tests with Cypress, Selenium, Playwright
  • Release strategies: blue/green, canary
  • Azure DevOps with Git, NuGet, build and release pipelines, Azure Functions, Azure App Service
  • Documentation with arc42, AsciiDoc, AuthorIt; SonarQube
  • Fullstack: Angular HTML/CSS/TypeScript, MAUI, Blazor, NGRX; Python; packaging process engine
  • Hardware communication: scanners, scales, printers
  • Performance optimization with CI-integrated Locust tests
  • Desired State Configuration scripts (C#, PowerShell); MES/SAP info as PowerShell plugin; PowerShell, Azure CLI
  • MS 365 integration: OIDC plugins, Graph API, users/mail/calendar
  • Structured logging with OpenTelemetry, Application Insights; application monitoring
Mar 2023 - Sep 2023
7 months

Backend / Microservice Developer

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C#, .NET Core 5/6
  • Microservices backend development
  • OData endpoints
  • CQRS (command-query separation)
  • Identity and Access Management implementation
  • Azure AD, Azure B2C authentication and authorization (Client Credentials, On-Behalf-Of, B2C flows); Log Analytics; Application Insights
  • Microsoft Graph API
  • Elasticsearch document indexing
  • RabbitMQ, Azure Service Bus
  • Scheduler: Quartz
  • Sitecore as basic frontend
  • Docker, OpenShift, Azure Kubernetes Service
  • Automated tests
  • IoC/DI with MediatR; Git; Visual Studio 2019/2022
Aug 2022 - Mar 2023
8 months

Backend / Full-stack / Microservice Developer

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C#, .NET Core 5/6, EF Core
  • Containerization: Kubernetes (AKS), Docker
  • MS SQL Server
  • Microservices backend development
  • GraphQL; NServiceBus
  • CQRS (command-query separation), API gateway/BFF
  • Identity and Access Management implementation
  • Aurelia JS frontend (medium)
  • Automated tests
  • Git; Visual Studio 2022
Oct 2021 - Sep 2022
1 year

Backend / Microservice Developer

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • Microservices (Clean Architecture)
  • Microsoft Dynamics 365 CRM with FetchXML
  • Power BI reporting; SSRS; SharePoint
  • Moq; Application Insights
  • Fluent validation
  • Azure Service Bus; Cognitive Search
  • Web API, REST, Swagger; authentication/authorization with OpenID; OData
  • SimCorp Portfolio & Reporting REST API
  • Credit and calculation engine (Marzipan API): effective interest calculation, liquidity costs; REST interface with token-based authorization
  • Redis (cache, message broker)
  • C#, .NET Core
  • Azure DevOps with build pipelines, CD/CI, Docker, Kubernetes, k9s, Terraform
  • Unit tests
  • Scrum in a distributed international team
Mar 2021 - Oct 2021
8 months

Backend / Architect

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C#, .NET, .NET Core, Mono
  • Refactoring of a monolithic application
  • Hardware/OS abstraction layer on Linux
  • Bitbucket; Docker containers; embedded Linux
  • Automated tests
  • IoC/DI; Git; Visual Studio 2019
Jan 2020 - Dec 2020
1 year

CRM Developer

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • Salesforce Lightning APEX, database, REST interface
  • VB.NET office automation, VBScript
  • Desired State Configuration scripts (C#, PowerShell)
Apr 2019 - Mar 2021
2 years

Backend / Microservice Developer

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • MES (manufacturing execution systems): NEXEED, OpCon; digital twins
  • Azure; SAP interface
  • Microservices
  • Web API, REST, Swagger; authentication/authorization with OpenID, OAuth2, IdentityServer
  • Scrum in an international distributed team
  • C#, .NET Core 2.0–2.2; Visual Studio 2017/2019; TFS
  • Docker, Kubernetes, containers
  • PowerShell scripting
  • Keycloak, OpenID Connect, OAuth2
  • Entity Framework/Core; MS SQL Server, SQLite, LiteDB, CouchDB
  • Workflow Foundation with custom coded activities
  • WPF
  • Automated UI tests with Ranorex, Appium
  • Unit tests
  • DevOps: TVFC, Git, NuGet, build and release pipelines
  • SonarQube; ALM with Jira, Confluence, TFS, Azure DevOps, Git
Jan 2019 - Apr 2019
4 months

Developer / Desktop Applications

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • MahApps WPF application
  • MES integration
  • Visual Studio 2017/2019; .NET 4.7.2
  • SAP connectivity
  • MVVM with Prism
  • Bartender labeling
  • OPC Siemens integration
  • WebIO interface for machine control
  • Entity Framework; SQL Server
  • Production data tracing system; ALM with Azure DevOps, Git
May 2018 - Sep 2022
4 years 5 months

Fullstack Developer / Desktop and Backend Applications

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C++ for analysis and evaluation of measurement data from laser sensors and National Instruments DAQ devices; hardware integration
  • Qt (5.x, 6.x) with Qt Creator, Qt Designer; Squish
  • QML/widgets UIs with MVVM, components, UI library
  • REST interface with Oatpp
  • Boost
  • JavaScript charts (echarts)
  • Databases: MySQL, SQLite; migrations
  • Laser device communication via serial, TCP/IP, UDP
  • Audio signal processing: FFT, WASAPI, resampling, filtering
  • MQTT messaging
  • Automated UI tests with Squish BDD (Gherkin); Python
  • Spectrum and time-domain sensor signal evaluation and visualization
  • Visual Studio 2017, 2019, 2022; SVN; Git
  • Replacement of existing application
Jan 2018 - May 2018
5 months

Developer / Desktop Applications

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C#/WPF production optimization application
  • User management; licensing
  • Git; .NET 4.6
Jun 2017 - Jan 2018
8 months

Backend Developer / API Integration

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C# logistics integration with DHL, DPD
  • REST, SOAP APIs
  • Zebra printer integration
  • .NET 4.6; automated unit and integration tests
Mar 2017 - Jun 2017
4 months

Developer / Desktop and Server Applications

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C# with GPS-referenced geodata
  • Process control systems
  • WPF with MVVM, Infragistics
  • MES, IoT; PowerShell scripting
  • Web API, Swagger; .NET 4.7
  • Azure SQL Database backend
  • OPC Siemens integration; ALM with TFS, Azure DevOps, Git
Feb 2017 - Mar 2017
2 months

Developer / Test Automation

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • C++/Qt5 test application with USB hardware communication
  • Test wizard; XML data storage
Oct 2016 - Feb 2017
5 months

Developer / Consultant

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • Middleware communication service in C# (VS2015/2017) with TCP/IP sockets
  • Automated tests
  • AWS cloud; penetration tests
Mar 2016 - Oct 2016
8 months

Developer

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • WPF/C# MVVM application (VS2015)
  • Collecting, analyzing, processing XML, text, distributed log files from network areas
Jan 2016 - Mar 2016
3 months

Developer / Desktop and Server Applications

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • WPF application with MVVM and Telerik (C#, VS2015/2017)
  • Web API, Swagger; SQL Server/Oracle databases; web services
  • Integration of DMS into WPF: UI integration, full-text search, versioning, workflows
  • Implemented application permission model
  • Git, SVN, TFS
Dec 2015 - Mar 2016
4 months

Developer / Project Manager

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • IoT .NET Core application on Linux/Windows
  • C# code migration
  • Web API, Swagger; REST API
  • Visual Studio Code; Visual Studio Team Services
  • SCM with TFS and Git; Angular, Bootstrap
Sep 2015 - Dec 2015
4 months

Developer / Desktop Applications / REST Services

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • WPF application with MVVM and DevExpress (C#, VS2015)
  • Office document generation for DMS with full-text search
  • COM integration and Office plugins (COM, COM+, VSTO)
  • Workflow implementation
  • ServiceNow workflow integration
  • Web API, Swagger; SQL Server; microservices; MS Reporting; native PDF/Excel reports
  • Active Directory integration; user authentication; .NET 4.5
Apr 2015 - Dec 2015
9 months

Developer

Blumenschein Kurt Software Development & Consulting e.U.

  • C/C++, Qt5: extensions and adaptations of web and client test framework
  • Cross-platform Windows/Linux development; multithreading; TCP socket communication
  • Scripting with Perl; C/C++ unit tests (cfix, WinUnit)
  • C# test automation
  • VB.NET automated printing of prepared reports; Java configuration and UI
Jan 2015 - Apr 2015
4 months

Developer

Blumenschein Kurt Software Development & Consulting e.U.

  • C# communication project (Telnet, SSH, AIX)
  • .NET 4.5 WinForms/WPF clients on Windows 7/10
  • Unit and integration tests
Jan 2014 - Dec 2016
3 years

Developer

Blumenschein Kurt Software Development & Consulting e.U.

  • MS SQL Server reporting: SQL and RDL
  • MES extension for safety-critical parts
  • C#, WinForms/WPF client extensions; MFC C++ client extensions
Jan 2012 - Dec 2014
3 years

Developer

Blumenschein Kurt Software Development & Consulting e.U.

  • WPF/C# MVVM applications with SQL Server 2012 backend
  • Active Directory integration; user authentication, profiles
Jan 2012 - Dec 2014
3 years

Developer

Blumenschein Kurt Software Development & Consulting e.U.

  • Database projects (SQL Server 2005–2012, Oracle) in C#/.NET, PL/SQL, T-SQL
  • Automatic generation of SQL Server schemas and stored procedures based on Oracle/SQL Server schemas
  • Test automation in C#
  • CRUD stored procedures; SQL documentation with Redgate SQL Doc, Turtle
Jan 2004 - Dec 2004
1 year

Developer / Project Lead

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • International patent and reference project on image processing with laser machines
  • C++/C#/C++ CLI for object recognition and automatic cut-path compensation
  • Geometry transformations; Bézier to arc conversion
  • OpenCV/Emgu .NET: adaptive threshold, Canny, Sobel, blurring, Hough transform, contour detection
  • Color space corrections; raster algorithms (error diffusion, ordered dithering)
  • Repair algorithms for distorted geometries
  • Installation packages: MSI, InstallShield, Nullsoft, WiX
  • Automated UI tests with Ranorex; Qt 4.x, 5.x
Jan 2003 - Dec 2006
4 years

Developer

Firma Blumenschein Kurt Softwareentwicklung & Beratung e.U.

  • Automotive ECU test automation in C/C++/VB.NET/C# COM and LabVIEW on Windows 2000/XP
  • Automatic test environment for diesel engine control units with sensor and actuator simulation via COM servers
  • Implementation of COM servers and test automation for pre-release software testing

Languages

German
Native
English
Intermediate
Spanish
Elementary

Education

Oct 2001 - Jun 2005

University of Applied Sciences Wels

Diploma Engineer (FH), Industrial Computer Science · Industrial Computer Science · Wels, Austria

Oct 2000 - Jun 2001

BFI Linz, Steyr, Johannes Kepler University Linz

University entrance qualification exams · University entrance qualification exams · Steyr, Austria

Oct 1991 - Jun 1995

SNF Steyr

Apprenticeship, Plant Mechanic · Plant Mechanic · Steyr, Austria

...and 2 more

Certifications & licenses

Microsoft Certification, Azure Administrator AZ-104

Microsoft Certification (MCTS) 70-536 “.Net 3.5 Framework Application Development Foundation WPF”

Prometric, WIFI Linz

Microsoft Certification (MCTS) 70-526 “.Net Framework Application Development Foundation”

Global Knowledge GmbH, Vienna

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