03/06/2026 updated
100 % available
Senior .NET / C# & Azure Contractor | Freelance Full-Stack Developer| React | EU Remote | B2B
Cluj-Napoca, Romania
Only remote
MSc. Computer ScienceAbout me
I’m a senior software consultant working hands-on on large-scale, enterprise-grade B2B and B2C systems, primarily using .NET, Azure and React. I take ownership of features end to end, from task clarification, technical discovery and stakeholder discussions to implementation and production delivery.
.NET FrameworkAgile MethodologyAtlassian ConfluenceAtlassian JiraAutomationUnit TestingMicrosoft AzureC Sharp (Programming Language)Cloud EngineeringContinuous DeliveryContinuous IntegrationCommand-Query Responsibility Segregation (Software Development)DevOpsFunctional TestingPostgreSQL
Full Stack Development
Expertise in .NET, React, TypeScript, and modern web technologies for building scalable enterprise applications
Cloud Architecture
Advanced knowledge of Microsoft Azure services including App Services, DevOps, and containerized deployments
Microservices Architecture
Design and implementation of event-driven microservices using CQRS, Domain Driven Design, and messaging patterns
Database Management
Proficiency in Microsoft SQL Server, MySQL, PostgreSQL, SQLite, and Neo4j for data storage solutions
DevOps and CI/CD
Implementation of automated pipelines using Azure DevOps, Docker, and infrastructure as code practices
API Development
Creation of REST APIs, OpenAPI/Swagger documentation, and authentication systems including OAuth2
Testing Methodologies
Unit Testing, Integration Testing, API Testing, and Manual Functional Testing for quality assurance
Project Management
Agile methodologies including Scrum, Kanban, and cross-team collaboration using Jira and Confluence
Expertise in .NET, React, TypeScript, and modern web technologies for building scalable enterprise applications
Cloud Architecture
Advanced knowledge of Microsoft Azure services including App Services, DevOps, and containerized deployments
Microservices Architecture
Design and implementation of event-driven microservices using CQRS, Domain Driven Design, and messaging patterns
Database Management
Proficiency in Microsoft SQL Server, MySQL, PostgreSQL, SQLite, and Neo4j for data storage solutions
DevOps and CI/CD
Implementation of automated pipelines using Azure DevOps, Docker, and infrastructure as code practices
API Development
Creation of REST APIs, OpenAPI/Swagger documentation, and authentication systems including OAuth2
Testing Methodologies
Unit Testing, Integration Testing, API Testing, and Manual Functional Testing for quality assurance
Project Management
Agile methodologies including Scrum, Kanban, and cross-team collaboration using Jira and Confluence
Experience
Professional experience0 - 5 years
Freelancer since2025
Languages
GermanFluentEnglishFluentRomanianNative speaker
Project history
- Owned Microsoft Entra B2C onboarding, authentication and user-lifecycle flows for a large .NET business APP.
- Integrated the APP with the CIAM platform via MuleSoft APIs, coordinating changes across teams and environments.
- Advised stakeholders on secure identity flows and future automation and AI opportunities. Designed and implemented system interfaces with external applications.
- Developed intuitive UIs with React and TypeScript for complex business workflows
- Designed and implemented microservices in .NET 8 using CQRS and event-driven messaging with MassTransit (RabbitMQ, Azure Service Bus)
- Mapped system workflows and service interactions in concise diagrams, identifying friction points and supporting discussions around improvements and new feature integration
- Deployed and operated services in Microsoft Azure (App Services, Key Vault, Blob Storage, App Configuration, Application Insights) using Bicep and Docker, with CI/CD pipelines in Azure DevOps
- Reviewed Azure Application Insights usage and proposed concrete changes to reduce monitoring costs, including retention settings and log export to Blob Storage
- Weighed trade-offs when introducing new functionality, including impact on existing services, data flows, and operational complexity
- Contributed to the design and implementation of a Python service exposing a chat-style API with built-in RAG (document embedding + retrieval) and support for multiple LLM providers (OpenAI, Ollama) for internal knowledge querying
- Ensured reliability through unit/integration tests, debugging, and close collaboration with stakeholders to deliver features aligned with business goals
- Configured and maintained Keycloak realms and clients (redirect URIs, scopes, token settings) across Dev/Test environments for a new frontend application, and resolved authentication flow issues for external integrations
- Upgraded backend architecture (models, controllers, database) and optimized API performance through profiling and refactoring
- Designed and optimized .NET services supporting regulated medical workflows handling sensitive patient data
- Integrated interfaces with external medical systems, ensuring secure data exchange and regulatory alignment
- Collaborated directly with HCI solutions to support legal compliance and system approval processes
- Mentored and onboarded new team members, supporting their integration into the codebase and development processes
- Assessed upcoming privacy regulation changes and steered the organization away from implementing potentially non-compliant usage-tracking mechanisms (Google Tag Manager), preventing future rework and legal risk