Mertkan Henden-Expert in Azure cloud transformations, infrastructure automation, and software development
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Experience
Azure cloud platform transformation
German insurance company
- setting up and scaling an Azure cloud platform for over 96 applications, including designing and implementing a multi-tier platform architecture with dedicated management, identity, and connectivity subscriptions.
- designing and implementing standardized Azure Landing Zones for application- and department-specific resources, considering network, security, and compliance requirements, using Terraform and Bicep.
- overall business and technical responsibility for security standards for application teams to ensure auditability of governance, security, and compliance requirements (Azure Policy, resource tags, network restrictions, access packages).
- technical responsibility for go-live and transformation of existing applications, including connecting branch offices, on-premises data centers, handovers, penetration testing, and security approvals.
- increasing the security level by implementing least-privilege and zero-trust architectures, including RBAC optimization, managed identities, network segmentation, and introducing Azure Sentinel and Defender for Cloud.
- defining and establishing DevSecOps processes by integrating security scans, policy checks, and compliance validations into CI/CD pipelines and providing hardened container images (base, build, and runtime images).
- building a central monitoring, logging, tracing, and alerting stack based on Elastic Cloud (Elasticsearch, Kibana, Beats/Agent) to comprehensively monitor infrastructure and application components.
Azure cloud platform transformation
South German sports car manufacturer
- setting up and scaling an Azure cloud platform for over 130 applications with more than 11 million accesses, including security audits of Azure Cloud building blocks, compliance policies, and role-based access control (RBAC).
- implementing and extending the Azure cloud infrastructure for the Chinese market, taking into account local compliance and security requirements.
- taking overall technical responsibility for the architecture, design, and implementation of cross-project Azure Landing Zones using the hub-and-spoke topology model.
- automated provisioning and management of Azure services (App Services, Container Apps, Azure Kubernetes Service) and infrastructure resources (Front Door, Application Gateway, VNets, resource groups, Key Vaults, storage accounts, PostgreSQL databases, Cosmos DB, private endpoints) using Terraform and Bicep.
- optimized configuration management of Terraform modules by introducing a Kotlin (Quarkus) backend service for a stage-, project-, and region-independent definition of resource-specific metadata.
- implementing a comprehensive observability stack with Grafana, Prometheus (including Mimir, Tempo, Alloy), and Logstash for real-time monitoring, logging, and tracing of production systems.
- connecting and managing MongoDB Atlas cloud within the project-specific Azure tenant structure.
Azure cloud migrations
International car manufacturer
- analyzing existing application architectures to identify migration requirements according to the Azure Well-Architected Framework.
- transforming monolithic on-premises systems into cloud-native microservice architectures based on domain-driven design, test-driven development, and the principles of clean architecture.
- configuring CI/CD pipelines by integrating automated build and test stages and Trivy security checks.
- building backend systems with Java EE and related frameworks (e.g., Open Liberty, Quarkus).
- maintaining the Azure cloud infrastructure and configuring Azure App Services, technical users, and role concepts.
Technical analysis & coordination
Czech car manufacturer
- requirements and test management for cloud-based components and digital services in a smart mobility environment.
- coordinating the rollout of new app features for worldwide users of the connectivity services.
Cloud and web service projects
German automotive supplier
collecting and preprocessing data using OpenStreetMap and ground truth data, including enriching traffic sign positions with surrounding information through OSM Overpass queries in key-value format.
statistically testing identified attributes for independence and significance.
comparing and evaluating algorithms for creating binary classifiers with Python (Scikit-Learn).
validating and interpreting research results regarding their generalizability.
implementing the software architecture using the Django REST Python framework.
ensuring software quality by applying test-driven development methodology.
creating reusable front-end components with JavaScript (React).
adapting and connecting geodata into the PostGIS database structure, including using the OpenStreetMap Overpass API.
designing the reactive front end with the JavaScript libraries LeafletJS and D3.js.
creating efficient database queries for the MySQL database, including connecting to an Apache Hadoop cluster (HDFS).
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Automotive, Information Technology, and Insurance.
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Research and Development, and Quality Assurance.
Summary
๐๐๐๐ฟ๐ฒ ๐๐น๐ผ๐๐ฑ-๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ & ๐๐ฒ๐๐ข๐ฝ๐-๐ฆ๐ฝ๐ฒ๐ฐ๐ถ๐ฎ๐น๐ถ๐๐
Expert in Azure cloud transformations, infrastructure automation, and software development
- ๐ต๐ฒ๐ป๐ฑ๐ฒ๐ป-๐ฐ๐ผ๐ป๐๐๐น๐๐ถ๐ป๐ด.๐ฑ๐ฒ
I'm Mertkan Henden, an Azure Cloud Engineer and IT freelancer from Heilbronn. I help you transform your Azure infrastructure into a stable, secure, and scalable cloud environment in 4โ8 weeks, with proven 15โ30% lower operating costs.
๐๐จ๐ฎ ๐ฐ๐จ๐ซ๐ค ๐ฐ๐ข๐ญ๐ก ๐ฆ๐ ๐ข๐:
your Azure environment has grown but isn't cleanly structured
cloud costs are spinning out of control
governance and security were thought of rather 'after the fact'
you want to use Azure not as a risk, but as a real competitive advantage
๐๐ก๐๐ญ ๐ ๐๐จ ๐ข๐ง ๐ฉ๐ซ๐๐๐ญ๐ข๐๐:
infrastructure as code with Terraform and Bicep
setting up, operating, and hardening Azure Landing Zones and governance concepts
automating your CI/CD pipelines with Azure DevOps, GitHub Actions, or GitLab
container workloads and microservice architectures
reducing your Azure operating costs
I work with medium-sized companies and corporations that want to set up their cloud environment professionally without months-long projects or unnecessary complexity.
Feel free to send me a message if you want to set up your Azure infrastructure cleanly, securely, and cost-efficiently.
Skills
- Microsoft Azure Cloud
- Java (Openliberty, Quarkus, Spring Boot)
- Kotlin
- Python (Flask, Django, Django Rest)
- Javascript And Typescript (React, Angular, Nextjs)
- Nosql
- Sql
- Html/css
- Bash
- Terraform
- Bicep
- Conducting Security Audits And Vulnerability Scanning (Docker, Trivy, Prisma Cloud)
- Automated Software Delivery (Cloud Ci/cd) With Jenkins, Gitlab Ci, Github Actions
- Managing Cloud Infrastructure (Docker, Terraform, Prometheus, Grafana, Kibana)
- Implementing Etl Processes From Data Warehouses And Data Lakes
- Mongodb Atlas
- Jupyter Notebooks
- Apache Hue Sql Editor
- Intellij
- Pycharm
- Postman
- Apache Spark (Pyspark)
- Scikit-learn
- Keras
- Pandas
- Numpy
- Matplotlib
- Scipy
Languages
Education
Heilbronn University
Business Informatics ยท Heilbronn, Germany ยท 1.8
Certifications & licenses
AWS Certified Cloud Practitioner
Amazon Web Services
AWS Certified Developer
Amazon Web Services
AWS Certified Solutions Architect
Amazon Web Services
Certified SAFe 5 Agilist
Project Management
ISAQB Certified Professional For Software Architecture
Software Architecture
Microsoft Certified Azure Administrator
Microsoft Azure
Microsoft Certified Azure Developer
Microsoft Azure
Microsoft Certified Solution Architect
Microsoft Azure
The Open Group Certified: TOGAF 9 Certified
Enterprise Architecture
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Experience
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Qualifications
Profile
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