Freelancer profile translated to English.

Description

Do you have a .NET project that needs expert hands? I specialize in backend development with .NET and C#, REST APIs, and advanced SQL Server, working in consulting environments where every project is different and deadlines matter.

With over 4 years of experience, I've tackled projects from scratch and also inherited messy legacy code, succeeding in both cases. I adapt quickly to new technologies — I integrated a complete ELO platform without prior experience, built an API with a PDF generator, and developed a functional mobile QR code reader, all while adapting to each client's specific project.

I work autonomously and in an organized manner. I enjoy working with clients who clearly explain their needs and have the patience to build something together. You tell me what you need and by when, and I'll manage it.

If you need someone who understands your business, asks intelligent questions, and delivers clean, maintainable code, let's talk.

Industry field of expertise

Languages

Spanish
Native or bilingual
English
Conversational

Workplace preferences

Remote only

Primarily works remotely

NCS Spain
Software Developer
January 2025 - Today (1 year and 7 months)
Madrid, Spain
• Development and consumption of REST APIs in .NET 8, integration with external systems using API KEY and OAuth.
• ELO Project: integration of JS with ELO platform from scratch, creation of a custom API with PDF generator, and development of a mobile QR code reader that manages user activities.
• HS Project: complete refactoring of legacy code (spaghetti code → clean architecture), applying SOLID principles and improving maintainability.
• Development with Vue.js + Vuetify, Bootstrap, HTML, CSS according to project.
• Database management with SQL Server and PostgreSQL: advanced queries, stored procedures, performance optimization.
• Experience with Umbraco CMS (versions 8 and 9) integrated with .NET.
• Regular use of Postman for API testing and documentation.
• Mentoring colleagues in Vue.js and SQL; direct client meetings; participation in functional documentation development.
SQL Server .NET C# HTML5 REST API Vue.js
ICP
.NET & SQL Server Developer | REST APIs · C# · Full Stack
LOGISTICS AND SUPPLY CHAIN
November 2022 - September 2024 (1 year and 10 months)
Meco, MD, Spain
Design and development of web applications with VB.NET, C#, HTML5.

Implementation and optimization of MySQL databases; complex queries and stored procedures.
Review and performance improvement of existing code; testing and technical documentation.
Avalisto
Full Stack Developer
BANKING AND INSURANCE
May 2021 - July 2022 (1 year and 2 months)
Madrid, Spain
Web development in .NET with MVC, Razor, Bootstrap, HTML, CSS.
SQL Server: LINQ queries, stored procedures, optimization.
Integration with external APIs (API KEY, OAuth). Design Patterns.
Documentation of architecture and database table relationships.

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Higher Technician in
IES El Lago
2021
Técnico Superior en

Lina Maria Pérez Puerta

.NET & SQL Server Developer | REST APIs · C#

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