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Thomas Grevenkamp-Senior .NET / Cloud Engineer

Thomas Grevenkamp - Senior .NET / Cloud Engineer - profile avatar
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Dortmund, Germany

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Experience

Apr 2026 - May 2026
Remote

Senior .NET / Cloud Engineer

Freelance

Position Summary
Senior .NET / Cloud Engineer at Freelance
Industries
Information Technology
Business Areas
Information Technology
Operations

Setup of an observability and alerting solution for Business Central job queue monitoring

  • Setup of a central monitoring solution to monitor the Business Central job queue in a multi-organization environment in Azure DevOps
  • Integration of Azure Application Insights and Log Analytics for structured collection and analysis of job runtimes and errors
  • Development of KQL queries for targeted analysis of failed jobs and detection of error patterns
  • Integration of Grafana and Power BI for real-time visualization of operational metrics and job status
  • Implementation of an automated alerting workflow with Power Automate – a notification email is sent immediately when a job fails
  • Ensuring transparency of the status of production background processes in day-to-day operations

Result: Full transparency of failed Business Central jobs · clear reduction in response time through automated email alerts · a stable foundation for proactive operation of production background processes

Technologies: Azure DevOps | Application Insights | Log Analytics | KQL | Grafana | Power Automate | Power BI | Business Central | Azure Monitor

Mar 2024 - Mar 2026
Dortmund, Germany

Senior .NET / Cloud Engineer

Freelance

Position Summary
Senior .NET / Cloud Engineer at Freelance
Industries
Utilities
Business Areas
Information Technology

Migration and modernization of a billing system for e-mobility on Microsoft Dynamics 365 Business Central

  • Migration of a business-critical Navision solution to Microsoft Dynamics 365 Business Central
  • Technical enhancement of a production billing system in the e-mobility sector
  • Development and extension of integration interfaces for eRoaming partners (OCPI, OICP)
  • Analysis and optimization of data-intensive billing processes in SQL Server
  • Ensuring performance, stability, and integration in day-to-day operations
  • Result: Successful migration without downtime, significant performance improvement through SQL optimization
  • Technologies: Business Central (AL), Navision (C/AL), C#, .NET Framework, SQL Server, Azure, Azure DevOps, Azure SQL, Typescript, AWS, EC2, REST, JSON, XML, OCPI, OICP
Apr 2022 - Dec 2023
Dortmund, Germany

Senior .NET / Cloud Engineer

Freelance

Position Summary
Senior .NET / Cloud Engineer at Freelance
Industries
Information Technology
Business Areas
Information Technology

Cloud migration and modernization of .NET applications into an AWS multi-account architecture

  • Migration of existing .NET applications into a scalable AWS target architecture (multi-account/multi-environment)
  • Building containerized services with Docker
  • Introduction of Infrastructure as Code with Terraform
  • Development of REST-based and serverless components (AWS Lambda, SQS, SNS)
  • Building modern CI/CD pipelines and deployment processes using Azure DevOps
  • Result: Modernized cloud architecture, improved maintainability, and automated deployments
  • Technologies: C#, .NET Core, .NET Framework, SQL Server, Azure DevOps, DynamoDB, Docker, Terraform, Entity Framework Core, Typescript, REST, AWS, EC2, Lambda, SQS, SNS, SES
Nov 2019 - Mar 2022
Dortmund, Germany

Senior .NET / Cloud Engineer

Freelance

Position Summary
Senior .NET / Cloud Engineer at Freelance
Industries
Utilities
Business Areas
Information Technology
Product Development

Design and setup of a production billing system for e-mobility based on Microsoft Dynamics Navision

  • Design and development of a production billing system for charging infrastructure
  • Implementation of robust interfaces to eRoaming partners (OCPI, OICP)
  • Optimization of data-intensive SQL processes and stored procedures
  • Close coordination with business users and IT management
  • Result: Successful launch of a production system with high availability despite growing data volumes
  • Technologies: Navision (C/AL), C#, ASP.NET, .NET Framework, .NET Core, SQL Server, Azure SQL, Azure, Azure DevOps, Typescript, REST, JSON, XML, OCPI, OICP
Feb 2011 - Sep 2019
Dortmund, Germany

Senior .NET / Cloud Engineer & Technical Lead

Freelance

Position Summary
Senior .NET / Cloud Engineer & Technical Lead at Freelance
Industries
Information Technology
Business Areas
Business Intelligence
Information Technology
Product Development

Technical responsibility for the backend, data architecture, and operation of a production SmartHome system

  • Optimization of performance, stability, and database processes in daily operations
  • Building and enhancing a data warehouse based on SQL Server (SSIS, SSAS)
  • Technical coordination between development, operations, and the client
  • Migration of core system components to Microsoft Azure
  • Result: Successful Azure migration, consolidated data warehouse, and sustainable performance improvements
  • Technologies: C#, ASP.NET MVC, .NET Framework, .NET Core, SQL Server, SSIS, SSAS, Azure, Azure DevOps, Angular

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology and Utilities.

Information Technology
Utilities
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Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, and Business Intelligence.

Information Technology
Product Development
Business Intelligence
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Summary

Senior .NET / Cloud Engineer with many years of experience in developing, modernizing, and stabilizing business-critical applications. Focused on backend, cloud, and integration solutions in production enterprise environments. Extensive experience in evolving existing systems, migrations, and performance optimization of applications and databases.

Skills

  • .Net / C#
  • Asp.Net Core
  • .Net Core
  • .Net Framework
  • Entity Framework Core
  • Azure
  • Azure Devops
  • Azure Sql
  • Aws
  • Aws Lambda / Ec2 / Sqs / Sns
  • Sql Server
  • Postgresql
  • Dynamodb
  • Performance Tuning
  • Database Optimization
  • Docker
  • Terraform
  • Ci/Cd Pipelines
  • Infrastructure As Code
  • Containerization
  • Rest Apis
  • Json / Xml
  • Ocpi / Oicp
  • Api Integration
  • Microservices
  • Typescript
  • Business Central (Al)
  • Navision (C/Al)
  • Erp Migration
  • Cloud Migration
  • Ai-Assisted Development

Languages

German
Native
English
Advanced

Statistics

Experience

Total positions 5
Experience in Information Technology 10.5 y
Avg length 2 y 11 m
Longest experience 8 y 7 m

Global Experience

Countries worked in 1 (Germany)
Primary country Germany

Expertise

Recent roles Senior .NET / Cloud Engineer, Senior .NET / Cloud Engineer & Technical Lead
Main industries Information Technology, Utilities
Main business areas Information Technology, Product Development, Business Intelligence

Profile

Created
Last Update

Frequently asked questions

Have questions? Find more information here.

Thomas is based in Dortmund, Germany and can operate in on-site, hybrid, and remote work models.
Thomas speaks the following languages: German (Native), English (Advanced).
Thomas has at least 15 years of experience. During this time, Thomas has worked in at least 2 different roles and for 1 company. The average length of individual experience is 3 years. Note that Thomas may not have shared all experience and actually has more experience.
Based on recent experience, Thomas would be well-suited for roles such as: Senior .NET / Cloud Engineer, Senior .NET / Cloud Engineer & Technical Lead.
Thomas's most recent position is Senior .NET / Cloud Engineer at Freelance.
In recent years, Thomas has worked for Freelance.
Thomas is most experienced in industries like Information Technology and Utilities.
Thomas is most experienced in business areas like Information Technology, Product Development, and Business Intelligence. Thomas also has some experience in Operations.
Thomas has recently worked in industries like Utilities and Information Technology.
Thomas has recently worked in business areas like Information Technology, Product Development, and Operations.
Thomas is immediately available full-time for suitable projects.
Thomas's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
To hire Thomas, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

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Market avg: 888-1048 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.