02/13/2026 updated
100 % available
Senior Software Developer & Project Management Specialist
Santa Perpètua de Mogoda, Spain
Worldwide
Master's degree in Project ManagementAbout me
I’m a Senior .NET Backend Developer and Solution Architect with experience building mission-critical enterprise systems and scalable integration platforms. I specialize in designing and maintaining backend services, creating reliable APIs, and delivering solutions that are secure, maintainable.
.NET FrameworkADO.NETAmazon Web ServicesBusiness LogicArchitectureAuthenticationsCustomer Relationship ManagementCode CoverageDevOpsEntity FrameworkGitHubIdentity ManagementMaintenanceProject ManagementMicrosoft SQL Servers
.NET Framework Development
Backend development and maintenance for mission-critical enterprise CRM systems using .NET Framework 4.8 and .NET 7.0 with multi-tenant architecture
API Development & Integration
Implementation of SOAP and REST APIs for client integration with high availability and complex business logic using layered architecture patterns
Cloud Services & DevOps
Integration with AWS cloud services, CI/CD pipelines with GitLab and GitHub Actions, Docker-based testing and Kubernetes deployment
Database Management
Data access layer development using ADO.NET and Entity Framework with parameterized queries and SQL Server connection pool management
Authentication & Security
JWT-based authentication and authorization implementation with OAuth 2.0 integration for identity management
Message Queue Systems
Batch processes and scheduled jobs using Quartz.NET and RabbitMQ for asynchronous operations and notifications
Monitoring & Quality Assurance
Production system monitoring using Datadog APM with custom traces and structured logging, unit and integration testing with code coverage
Project Management
Leading development teams, coordinating sprints, organizing dailies and coordinating with Product Owners and Architects using Scrum methodology
Backend development and maintenance for mission-critical enterprise CRM systems using .NET Framework 4.8 and .NET 7.0 with multi-tenant architecture
API Development & Integration
Implementation of SOAP and REST APIs for client integration with high availability and complex business logic using layered architecture patterns
Cloud Services & DevOps
Integration with AWS cloud services, CI/CD pipelines with GitLab and GitHub Actions, Docker-based testing and Kubernetes deployment
Database Management
Data access layer development using ADO.NET and Entity Framework with parameterized queries and SQL Server connection pool management
Authentication & Security
JWT-based authentication and authorization implementation with OAuth 2.0 integration for identity management
Message Queue Systems
Batch processes and scheduled jobs using Quartz.NET and RabbitMQ for asynchronous operations and notifications
Monitoring & Quality Assurance
Production system monitoring using Datadog APM with custom traces and structured logging, unit and integration testing with code coverage
Project Management
Leading development teams, coordinating sprints, organizing dailies and coordinating with Product Owners and Architects using Scrum methodology
Experience
Professional experience10+ years
Freelancer since2024
Languages
EnglishFluentSpanishNative speaker
Project history
Backend Development & Maintenance for a Mission-Critical Enterprise CRM with .NET Framework 4.8 and .NET 7.0, implementing SOAP and REST APIs with high availability
PMS-Integration platform for hospitality-oriented integration connecting multiple external PMS providers with standardized internal model and unified API
Building API Rest in .net 6 for lottery system integration between IPLS and PLS systems, service migration and continuous development for South Africa, Botswana and Uganda