Jürgen Ruprechter, Developer in Vienna, Austria
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Jürgen Ruprechter

Verified Expert  in Engineering

DevOps and Back-end Developer

Location
Vienna, Austria
Toptal Member Since
December 28, 2021

For more than 30 years, Jürgen's worked in IT as a professional software developer, software and infrastructure architect, or data engineer—always with a strong focus on Microsoft products. Around ten years ago, he focused on the Azure cloud, gathering extensive experience with almost all Azure services. Over the last years, Jürgen's specialized in DevOps and SRE because designing and operating complex cloud infrastructure is what he likes most.

Portfolio

Freelance
Azure Automation, Windows PowerShell, Terraform, Ansible, Azure, Azure VDI...
SaaS Alerts
Azure Active Directory Graph API, Microsoft Graph API...
Freelance
Azure Active Directory B2C (ADB2C), Azure Active Directory, Microsoft 365

Experience

Availability

Full-time

Preferred Environment

Azure

The most amazing...

...professional experience I've had was seeing the automation I developed working as planned, protecting more than 10.000 resources in Azure during an attack.

Work Experience

Cloud Automation Lead

2021 - PRESENT
Freelance
  • Designed and developed a scalable solution integrating Azure infrastructure management with ServiceNow.
  • Implemented cost-savings measures to reduce costs by more than 60%.
  • Automated 35 manual processes to save time and increase internal customers' satisfaction.
  • Developed automation to support disaster recovery processes.
Technologies: Azure Automation, Windows PowerShell, Terraform, Ansible, Azure, Azure VDI, ServiceNow, ServiceNow REST API, .NET Core, REST APIs, CI/CD Pipelines, Infrastructure as Code (IaC), MySQL, Event-driven Architecture, OpenAPI, API/Services Architecture, Azure Active Directory, Microsoft 365, Office 365, Azure Migrate

Azure Developer

2022 - 2023
SaaS Alerts
  • Supported development team with Microsoft Graph API knowledge. Was able to speed up development and implement best practice solutions for using Microsoft Graph API from the GCP platform.
  • Supported development team with Microsoft Purview API knowledge. Was able to speed up development and implement best practice solutions for using Microsoft Purview API from the GCP platform.
  • Supported development team with troubleshooting MFA information in Azure Active Directory. MFA information can be challenging to interpret due to different solutions still in place with some clients, although they are partially outdated.
Technologies: Azure Active Directory Graph API, Microsoft Graph API, Azure Data Lake Analytics, Azure, Node.js, Firebase, Elasticsearch, Microservices, APIs, Google Cloud Functions, Event-driven Architecture, API/Services Architecture, Azure Active Directory, Office 365, Azure Migrate

Identity Engineer

2021 - 2021
Freelance
  • Streamlined an existing AD B2C installation to follow a template-based approach.
  • Increased the number of tenants in production from five to 250 using 120 different languages.
  • Developed scripts to manage all tenants easier, so corporate styling guidelines were easy to roll out.
Technologies: Azure Active Directory B2C (ADB2C), Azure Active Directory, Microsoft 365

DevOps Lead

2021 - 2021
Freelance
  • Developed and maintained infrastructure as code in Azure Bicep for all resources for configurable environments; four were used in the end.
  • Built and maintained Azure DevOps multi-stage pipelines for automatic infrastructure deployment, including sanity tests.
  • Created and maintained CI/CD pipelines to build and deploy all five application components to all environments, including automated tests and pull requests policies.
  • Implemented SonarQube checks as part of pull request policies.
  • Worked with the test team to fully automate the test cycle.
Technologies: Azure, Azure DevOps, Azure Bicep, Windows PowerShell, .NET 5, C#, SonarQube, Azure IoT Hub, Azure Key Vault, Azure App Service, Azure Cosmos DB, JavaScript, MySQL, API/Services Architecture, Azure Active Directory, Microsoft 365, Office 365, Azure Migrate

Team Lead | Development Team

2020 - 2021
Freelance
  • Redesigned the existing solution for web, mobile, and IoT devices to be deployed to Azure Cloud.
  • Increased the solution's performance by 2.000% using a microservice-based design.
  • Developed an automated cleaning planning solution based on usage information from sensors.
  • Implemented quality checks and automatic testing with four different environments.
Technologies: Azure, Azure DevOps Services, Solution Architecture, Azure SQL, Azure Cosmos DB, Xamarin, React, Ember.js, Azure IoT Hub, Azure VPN, Azure Application Gateway, Azure Application Insights, Azure API Management, SonarQube, JavaScript, HTML, CSS, MySQL, Event-driven Architecture, OpenAPI, API/Services Architecture, Azure Active Directory, MigrationWiz

DevOps and SRE Lead

2019 - 2020
Freelance
  • Managed the infrastructure for the newly created microservice-based solution in seven environments with more than 4,000 CPUs in the production environment.
  • Automated software deployment and made zero downtime deployments possible.
  • Instructed application developers how to build services that operate reliably in Kubernetes.
  • Planned and executed the migration of existing clients from the old 3-tier application.
  • Improved the horizontal scaling strategy, so the infrastructure automatically handled spikes in load, allowing the onboarding of 40,000 users for one client without any problems.
Technologies: Azure Kubernetes Service (AKS), GitLab, GitLab CI/CD, Jira, Terraform, Ansible, Argo CD, OAuth 2, Azure Application Gateway, Azure Key Vault, Rancher, Grafana, Prometheus, Jaeger, Apache Kafka, Apache ZooKeeper, PostgreSQL, JavaScript, MySQL, Event-driven Architecture, OpenAPI, API/Services Architecture, Azure Active Directory, Office 365

Solution Architect and Senior Back-end Developer

2018 - 2019
Freelance
  • Created an integrated solution to support all phases of real estate development.
  • Developed a hybrid solution with integration of the existing on-premise solution.
  • Modernized application environments to facilitate a more agile development process.
  • Extended SharePoint Online to act as the central repository for all projects.
Technologies: Azure SQL, Azure Web Application Firewall, Azure Websites, Azure WebJobs, Azure Virtual Networks, SharePoint, Dynamics CRM 365, MySQL, Event-driven Architecture, OpenAPI, API/Services Architecture, Azure Active Directory, Microsoft 365, Office 365, MigrationWiz

Solution Architect and Senior Developer

2017 - 2018
Freelance
  • Developed a new company-wide reporting hub with self-service capabilities.
  • Integrated SAP S4/HANA data to enable ad-hoc reporting.
  • Used Azure Cognitive Services to extract information from documents and tag them accordingly to improve document handling.
  • Reduced time used to generate monthly reports by 80%.
Technologies: Azure Cognitive Services, SharePoint 365, SAP S/4HANA Cloud, SAP Cloud for Customer (C4C), Microsoft Power BI, JavaScript, HTML, CSS, MySQL, Event-driven Architecture, OpenAPI, API/Services Architecture, Microsoft 365, MigrationWiz

Solution Architect and Senior Developer

2013 - 2017
Freelance
  • Developed a sensor management platform to store and analyze car parking data.
  • Built an automated sensor calibration and provisioning solution.
  • Used OpenCV to analyze image content and provide automatic image classification.
Technologies: C#.NET, Azure Cosmos DB, Azure Websites, Azure WebJobs, Computer Vision, JavaScript, HTML, CSS, Event-driven Architecture, OpenAPI, Microsoft 365

Senior DevOps Engineer

2010 - 2013
Freelance
  • Automated CI/CD processes in the cloud and moved code from SVN to Git.
  • Build tools to a provisioning infrastructure in Azure in reliable and repeatable ways.
  • Acted as the central DevOps team lead for approximately 120 developers.
Technologies: Azure Blob Storage API, Azure Table Storage, Azure Virtual Machines, Azure Virtual Networks, Azure Virtual Network Gateway, Azure DevOps Services, Microsoft 365

Solution Architect and Senior Back-end Developer

1998 - 2009
Freelance
  • Developed leading property management software in Austria as a client-server 3-tier application for Windows. The application supported more than 20.000 users in their daily work.
  • Implemented many customer-specific modifications for big clients like the government of Austria and Austria's biggest bank.
  • Provided administrators for clients with fully automated installation procedures.
Technologies: C++, Microsoft Foundation Class Library (MFC), C#.NET, C#.NET WinForms, SQL, JavaScript, MySQL, API/Services Architecture, Microsoft 365

Full-stack Developer

1991 - 1998
Freelance
  • Analyzed customer requirements and helped modify and enhance the existing standard software for financial tasks.
  • Helped migrate an MS-DOS-based solution to Windows using MFC 4.2.
  • Implemented an updated mechanism over the internet and dial-up connections.
Technologies: C++, Microsoft Foundation Class Library (MFC), SQL, JavaScript, HTML, CSS, Microsoft 365

Cloud Automation Leadership

The customer is one of the leading energy companies in Europe and is currently moving its IT landscape to the cloud.

My responsibility was to ensure fast, reliable, and compliant provisioning of resources in a cloud environment through automation and support other teams with cost-saving initiatives.

Libraries/APIs

Azure Active Directory Graph API, ServiceNow REST API, OpenAPI, React, Azure API Management, Azure Cognitive Services, Azure Blob Storage API, Microsoft Foundation Class Library (MFC), REST APIs, Node.js

Tools

Azure DevOps Services, Azure Active Directory B2C (ADB2C), Azure Automation, Terraform, Azure Application Insights, SonarQube, Ansible, Azure IoT Hub, Azure Application Gateway, Azure Key Vault, Azure App Service, Azure Kubernetes Service (AKS), GitLab, GitLab CI/CD, Jira, Grafana, Apache ZooKeeper, Azure Web Application Firewall, SAP Cloud for Customer (C4C), Microsoft Power BI, Azure Virtual Network Gateway, C#.NET WinForms

Paradigms

Azure DevOps, Microservices, Event-driven Architecture, API/Services Architecture

Platforms

Azure, Xamarin, Rancher, Apache Kafka, SharePoint, SharePoint 365, Firebase

Storage

Azure Active Directory, Azure SQL, Azure Cosmos DB, MySQL, Elasticsearch, PostgreSQL, Azure Websites, SAP S/4HANA Cloud, Azure Table Storage

Other

Complex Problem Solving, DevOps Engineer, CI/CD Pipelines, Microsoft Graph API, Azure Data Lake Analytics, APIs, Identity & Access Management (IAM), Microsoft 365, Office 365, Azure Migrate, GitHub Actions, Azure Bicep, ServiceNow, Solution Architecture, Azure VPN, Google Cloud Functions, Microsoft Purview, SecOps, MigrationWiz, Azure VDI, Argo CD, Prometheus, Jaeger, Azure WebJobs, Azure Virtual Networks, Dynamics CRM 365, Computer Vision, Azure Virtual Machines, Infrastructure as Code (IaC)

Languages

C#, JavaScript, HTML, CSS, C#.NET, C++, SQL

Frameworks

Windows PowerShell, .NET 5, .NET Core, OAuth 2, Ember.js

1988 - 1992

Master's Degree in Physics

Graz University of Technology (Technische Universität Graz) - Graz, Austria

FEBRUARY 2021 - FEBRUARY 2024

Microsoft Certified Azure DevOps Engineer Expert

Microsoft

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