Jürgen Ruprechter
Verified Expert in Engineering
DevOps and Back-end Developer
Vienna, Austria
Toptal member since December 28, 2021
For more than 30 years, Jürgen has 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 few years, Jürgen has specialized in data, DevOps, and SRE because he likes designing and operating complex cloud infrastructure the most.
Portfolio
Experience
Availability
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
Data Platform Architect
Freelance
- Rearchitected and implemented usage of private endpoints to create a secure company-wide network set up.
- Upgraded Datalake with 60.000+ tables from Hive Metastore to Unity Catalog in 5 Azure regions using Azure DevOps-based automation.
- Architected Unity Catalog-based data architecture and aligned requirements with relevant stakeholders.
- managed a small team of developers implementing IaC code.
- Set up an automated testing framework for Powershell and ARM-based modules, as well as Terraform modules.
Azure Developer
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be challenging to interpret due to different solutions still in place with some clients, although they are partially outdated.
Cloud Automation Lead
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.
DevOps Lead
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.
Team Lead | Development Team
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.
DevOps and SRE Lead
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.
Solution Architect and Senior Back-end Developer
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.
Solution Architect and Senior Developer
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%.
Solution Architect and Senior Developer
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.
Senior DevOps Engineer
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.
Solution Architect and Senior Back-end Developer
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.
Full-stack Developer
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.
Experience
Cloud Automation Leadership
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.
Databricks Unity Catalog
Education
Master's Degree in Physics
Graz University of Technology (Technische Universität Graz) - Graz, Austria
Certifications
Microsoft Certified Azure DevOps Engineer Expert
Microsoft
Skills
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 (MFC) Library, REST APIs, Node.js, Microsoft Foundation Classes (MFC)
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), Azure Machine Learning, Packer, 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
Languages
SQL, C#, JavaScript, HTML, CSS, Python 3, C#.NET, C++
Paradigms
Azure DevOps, Microservices, Event-driven Architecture, API/Services Architecture, DevOps
Platforms
Azure, Xamarin, Rancher, Apache Kafka, SharePoint, SharePoint 365, Firebase, NVIDIA CUDA, Linux
Storage
Azure Active Directory, SQL Server Integration Services (SSIS), Azure SQL, Azure Cosmos DB, MySQL, Elasticsearch, PostgreSQL, Azure Websites, SAP S/4HANA Cloud, Azure Table Storage
Frameworks
Windows PowerShell, .NET 5, .NET Core, OAuth 2, Ember.js
Other
Complex Problem Solving, DevOps Engineer, CI/CD Pipelines, Microsoft Development, Azure, APIs, Identity & Access Management (IAM), Microsoft 365, Office 365, Azure Migrate, GitHub Actions, Azure Databricks, Azure Data Lake, Unity Catalog, Cloud Migration, Migration, Azure Bicep, ServiceNow, Solution Architecture, Azure VPN, Google Cloud Functions, Microsoft Purview, SecOps, MigrationWiz, Containers, Azure VDI, Argo CD, Prometheus, Jaeger, Azure WebJobs, Azure Virtual Networks, Dynamics CRM 365, Computer Vision, Azure Virtual Machines, Infrastructure as Code (IaC), Platform Building
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