Freelancer profile translated to English.
Back to original languageAbout Santiago
.NET Core Developer with over 7 years of experience in designing, developing, and optimizing RESTful APIs, microservices, and scalable backend solutions. Expert in C#, Entity Framework Core, clean architectures, and SOLID principles, with a strong focus on quality, performance, and agile teamwork. I have worked in sectors such as insurance, fintech, telecommunications, and technology companies. I currently reside in Spain and am looking to collaborate as a freelancer on international projects, providing scalable and high-performance solutions.
Spanish
Native or bilingual
English
Basic
Remote only
Primarily works remotely
Experience
- Miracle DevsBackend Developer / AnalystTELECOMMUNICATIONSOctober 2024 - June 2025 (8 months)Development and analysis of backend solutions for a demanding client under pressure.Focus on performance, clean code, and RESTful architecture with microservices.Intensive use of C#, .NET Core, EF Core, SQL Server, and PostgreSQL.Implementation of Agile and Waterfall methodologies, with active participation in rigorous code reviews.Technologies: Docker, Git/GitHub, Jira, Visual Studio, TypeScript, ChatGPT, Microsoft Copilot.
- Smartway StudioBackend Developer / ArchitectTELECOMMUNICATIONSMay 2023 - September 2024 (1 year and 4 months)Optimization of REST APIs through custom middleware and parameterized queries with EF Core.• Collaborative work in a multidisciplinary team (QA, PO, TL, backend) under agile methodologies. Technologies: .NET Core, C#, RabbitMQ, Redis, Elasticsearch, Docker, Vue.js, Azure DevOps, CI/CD.
- Sancor SegurosTechnical Lead / Backend DeveloperBANKING AND INSURANCEFebruary 2021 - May 2023 (2 years and 3 months)Design and development of Background Services for message processing with the Observer pattern.Technical leadership in the development of REST APIs with Clean Architecture and CQRS pattern.Integration of multiple data sources and SOAP/REST services.Management of technical documentation and daily coordination with multidisciplinary teams.Technologies: .NET Core, C#, Dapper ORM, JWT, GitLab, Jira, Scrum, xUnit.
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Education
- University Systems AnalystInstituto Politécnico Superior2015Analista Universitario en Sistemas
- ASP.NET Core Clean Architecture and Domain Driven Design (DDD)Udemy Certification2022ASP.NET Core Clean Architecture y Domain Driven Design (DDD)