I will build your full stack web application with dot net java react or nodejs

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Luis N.
build your full stack web application with dot net java react or nodejs
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build your full stack web application with dot net java react or nodejs

About this gig

A production-grade web app, built by someone who's shipped software for demanding, high-stakes organizations, not a tutorial project.


I'm Luis, a Systems Engineer with 35+ years of hands-on development experience, building critical web systems for demanding organizations and international clients worldwide. I build full stack apps end to end using whichever stack fits your project: .NET, Java/Spring Boot, or modern JavaScript (React, Angular, Node.js).


Why work with me: real development experience, not just management theory. Mission-critical systems for high-stakes organizations where errors aren't an option. Fluent across .NET, Java and JavaScript. Direct communication in English and Spanish, no agency layers.


Tech stack: C#, .NET Core, Java, Spring Boot, React, Angular, Node.js, SQL Server, PostgreSQL, MySQL, Azure, Git.


How I work: discovery call, written proposal with milestones, development with regular updates, then testing and delivery with a walkthrough.


Ideal for: startups needing an MVP, SMEs modernizing a system, or companies needing a senior developer without a full-time hire.

  • Programming language

    • C#

  • Expertise

    • Performance
    • Security
    • Design
    • Databases
    • Testing procedures

  • Frontend framework

    • Angular
    • React.js

  • Backend framework

    • Node.js
    • ASP.NET Core
    • Spring Boot

Get to know Luis N.

Luis N.

I am Web and Mobile App Developer

4.6(36)
  • FromArgentina
  • Member sinceMar 2014

  • Languages

    English, Spanish
Software Engineer with more than 20 years of experience. Expert in technical team leadership and Full Stack development using .Net, Java, and JavaScript (React JS/Angular/Node JS) ecosystems. Specialist in Agile Methodologies (SCRUM and Kanban), diverse architectures, and databases. Experienced in Android and iOS mobile application development, as well as migration and maintenance of Legacy Systems (Mainframe). I participated in projects in various industries such as Banks, Credit Cards, Pension Funds, Retail, Automotive,Telecommunications, Electricity Distributors and the Ministry of Economy.

My Portfolio

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