11/17/2025 updated
100 % available
Senior Software Developer and System Architect
Bratislava, Slovakia
Worldwide
Master's Degree in Physics and Computer ScienceWeb InterfacesASP.NETJavaScriptADO.NETAjax (Programming Language)BankingBootstrap (Software)Customer Relationship ManagementC Sharp (Programming Language)Cascading Style Sheets (CSS)Claim ProcessingCloud ComputingContinuous IntegrationSoftware Design PatternsDevOps
Full Stack Development
Comprehensive expertise in Microsoft technologies including C#, .NET Core, ASP.NET, MVC, and Blazor for enterprise application development
System Architecture
Advanced skills in designing object-oriented systems, implementing design patterns, SOA, and multi-tier architectures for scalable solutions
Database Management
Extensive experience with MSSQL, T-SQL, Oracle, ADO.NET, and Entity Framework for robust data-driven applications
Frontend Technologies
Proficient in JavaScript, TypeScript, React, Angular, Vue.js, CSS/SASS, Bootstrap, and AJAX/jQuery for modern web interfaces
Security Implementation
Knowledge of web security, Azure AD, OpenID, Claims, Single Sign-On (SSO), and authentication mechanisms
Cloud and Enterprise Integration
Experience with Azure AD integration, CRM, ERP, logistics, insurance, and banking systems
DevOps and CI/CD
Skills in build pipelines, CI/CD operations, deployment, maintenance, and lifecycle management
Messaging and Integration
Expertise in RabbitMQ, Camunda, WCF, and interoperability with external systems
Comprehensive expertise in Microsoft technologies including C#, .NET Core, ASP.NET, MVC, and Blazor for enterprise application development
System Architecture
Advanced skills in designing object-oriented systems, implementing design patterns, SOA, and multi-tier architectures for scalable solutions
Database Management
Extensive experience with MSSQL, T-SQL, Oracle, ADO.NET, and Entity Framework for robust data-driven applications
Frontend Technologies
Proficient in JavaScript, TypeScript, React, Angular, Vue.js, CSS/SASS, Bootstrap, and AJAX/jQuery for modern web interfaces
Security Implementation
Knowledge of web security, Azure AD, OpenID, Claims, Single Sign-On (SSO), and authentication mechanisms
Cloud and Enterprise Integration
Experience with Azure AD integration, CRM, ERP, logistics, insurance, and banking systems
DevOps and CI/CD
Skills in build pipelines, CI/CD operations, deployment, maintenance, and lifecycle management
Messaging and Integration
Expertise in RabbitMQ, Camunda, WCF, and interoperability with external systems
Experience
Professional experience10+ years
Freelancer since2010
Languages
GermanFluentEnglishFluentSlovakNative speaker
Project history
Support and creation of internal systems for the Stadt Wien - Soziales, Sozial- und Gesundheitsrecht (MA 40). Creation of interfaces for communication with BMI (Ministry of the Interior), SZR (Central Register), SAP
Developed CRM, warehouse, logistic and internal backoffice applications for e-shop and e-commerce. Created interfaces for suppliers, transport, and courier companies. Built integrations with marketplace platforms and customer e-shops
Upgraded systems to .NET Core 3.1 and developed messaging system. Implemented RabbitMQ and Camunda for system interoperability. Created new document output management system