Results at a Glance
- Up to 75% faster page response times and CRM data retrieval through targeted optimization of the Dynamics 365 integration
- Business-critical portals migrated from on-premises to Azure without disrupting operations for thousands of customers and business partners
- Manual deployment effort eliminated — fully automated Azure DevOps CI/CD pipelines across applications, services, and Dynamics 365 solutions
- Four years of continuous delivery (2022–2026) as freelance senior engineer on regulated, business-critical platforms
The Situation
A DAX-listed energy utility corporation in Germany operates customer-facing portal platforms that thousands of customers and business partners depend on daily — for contract management, onboarding, and core business processes tightly coupled to Dynamics 365.
When I joined as a freelance Senior Cloud Fullstack Engineer, the platforms ran on on-premises infrastructure, releases required significant manual deployment effort, and CRM-heavy pages suffered from slow data retrieval. As a company in a highly regulated industry, every change had to meet strict requirements for security, reliability, and auditability.
What I Did
Cloud migration & Infrastructure as Code — Led the migration of portal applications and supporting services from on-premises infrastructure to Microsoft Azure, and implemented the target infrastructure with Terraform across multiple environments (Azure App Services and related cloud resources).
Dynamics 365 integration — Designed and maintained the integrations between customer portals, backend services, and Dynamics 365 that carry critical business processes and customer onboarding workflows.
Performance optimization — Analyzed and restructured the CRM-related data access paths, reducing page response times and Dynamics 365 data retrieval overhead by up to 75%.
CI/CD automation — Built and maintained Azure DevOps YAML pipelines automating build, test, deployment, and release across multiple applications, services, scheduled jobs, and Dynamics 365 solutions — removing manual deployment work entirely.
Observability & operations — Established monitoring, alerting, and dashboards with Application Insights, Azure Monitor, and custom Azure Workbooks, and served on the System Management team responsible for incident response, root cause analysis, and service reliability.
Security — Identified and remediated vulnerabilities reported through internal security assessments and enterprise security reviews.
Built With
The Results
- Customer-facing platforms serving thousands of users run reliably in Azure — migrated without operational disruption
- Up to 75% reduction in page response times and CRM data retrieval overhead
- Zero-touch releases: every application, service, and Dynamics 365 solution deploys through automated, repeatable pipelines
- Faster incident detection and resolution through production-grade observability and structured root cause analysis
- Hardened security posture through continuous remediation of findings from enterprise security reviews
The engagement was extended repeatedly over four years — the strongest signal of trust an enterprise client can give a freelancer.
Notes
Due to contractual and confidentiality obligations, specific internal details, metrics, and screenshots cannot be disclosed. The description above focuses on technical scope, responsibilities, and architectural relevance rather than proprietary information.