Freelancer profile translated to English.
Back to original languageAbout Alex
Software development .NET with over 9 years of experience, always working with the latest versions of the ecosystem. I specialize in clean architectures (Clean Architecture, DDD, CQRS) and in recent years I have incorporated AI-First development as a central methodology: integration of LLM agents, Spec-Driven and Skill-Driven Development applied to real projects.
I have technically led teams and projects in sectors such as port automation, maritime logistics, and sports platforms. I work with total autonomy remotely, making architectural decisions and covering both backend (.NET, C#, SQL Server, RabbitMQ) and frontend (Vue 3, Quasar, TypeScript, Three.js).
If you need someone who understands the business, designs the solution, and executes it without constant supervision, let's talk.
Spanish
Native or bilingual
English
Conversational
Catalan
Native or bilingual
Remote only
Primarily works remotely
Experience
- PrimeIT EspañaSenior .NET Fullstack Consultant with AI — Team LeadSPORTSJanuary 2025 - Today (1 year and 7 months)• • Sole engineer responsible for the architecture, backend (.NET 9/10, C#, ASP.NET Core, EF Core) and frontend (Vue 3, Quasar, TypeScript, Three.js) of a sports platform for ticket sales and stadium positioning.• • First half of the project developed traditionally; second half applying AI-First methodology: map graphic editor with Three.js and InstancedMesh, integration of LLM agents and AI-powered PR review system.• • Design and implementation of a multi-agent system for automatic code review (SOLID, Clean Code, Vue/TS) with Spec-Driven and Skill-Driven Development.• • Technical leadership, team mentoring, and management of documentation and specifications.
- Grupo Romeu.NET Developer — Team Lead / AnalystMay 2023 - January 2025 (1 year and 8 months)Valencia, Spain• • Lead developer of a monolithic CRM for managing tariffs and freight for Grupo Romeu's international shipping lines.• • Development and maintenance of microservices with .NET 7/8, REST APIs, RabbitMQ, and Entity Framework.• • Functional analysis of new requirements, refactoring, performance optimization, and technical leadership of the team.• • Application of DDD, CQRS with MediatR, Clean Architecture, Docker, and CI/CD.
- Toshiba Mitsubishi-Electric Industrial Corporation.NET DeveloperTRAVEL AND TOURISMOctober 2019 - May 2023 (3 years and 7 months)Valencia, Spain• • Automation of international maritime terminals: development of real-time control software for cranes, vehicles, and port logistics (Italy, Valencia, Dublin, Costa Rica).• • Leadership of teams and projects in distributed environments. Migrations of legacy .NET Framework projects to modern .NET.• • Design of REST APIs consumed by web and Android clients. Performance improvements with EF Core and observability.
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Education
- Higher Technical DegreeIES Serra Perenxisa2017Técnico de Grado Superior
- Intermediate Technical DegreeIES Serra Perenxisa2015Técnico de Grado Medio