Nahuel Martin Lucero Seinturia, Full-stack Web Developer in Toronto, ON, Canada
Nahuel Martin Lucero Seinturia

Full-stack Web Developer in Toronto, ON, Canada

Member since April 16, 2018
Nahuel is a passionate full-stack web developer who has been lately involved in mostly JavaScript-stack projects. He truly enjoys researching and applying the latest technologies and methodologies wherever he can. Nahuel joined Toptal to find projects where he can grow as a professional and take on challenges as part of his day-to-day work.
Nahuel is now available for hire




Toronto, ON, Canada



Preferred Environment

Slack, VS Code, Git, Linux

The most amazing...

...thing I've coded was an OAuth 2.0 authorization server in Node.js.


  • Senior Software Engineer

    2018 - PRESENT
    Quantum Mob
    • Oversaw the development of a real-time web app for one of the biggest mobile games companies in Toronto. The app lets administrators control the flow of a live session of one of their multiplayer games using a set of third-party APIs and the MQTT protocol. Each user had the capability of creating and customizing their own dashboards using a set of different widgets.
    • Served as the team/tech lead of the team responsible for building several new websites for AirMiles, a well-known customer loyalty program in Canada.
    • Set up AirMiles' project scaffolding, analyzed requirements, created user stories, performed code reviews, and coded among other tasks. These websites have a considerable amount of public traffic so performance and scalability were paramount.
    • Mentored less experienced developers by defining and implementing a thorough code-review process.
    Technologies: Auth0, Contentful, Node.js, TypeScript, Next.js, React
  • Web Developer

    2017 - 2018
    Pragmars, LLC
    • Developed a web solution to provide participants of the California Workers’ Compensation system with litigated case data and documents (React.js with Apollo Client and Recompose).
    • Built a GraphQL API that feeds the web app and also handles authentication.
    • Thoroughly tested the back-end business logic using Jest.
    • Ensured the durability of the front-end React.js component by testing it with Jest and Enzyme.
    Technologies: GraphQL, React, Node.js
  • Web Developer

    2017 - 2017
    Tradehelm, Inc.
    • Worked for Pharos Innovations on Navitas: a web application designed for senior people that enables them to take medical surveys online and receive assistance from professionals; used React.js as front-end JavaScript framework.
    • Created and maintained several REST microservices; used ASP.NET Web API 2 framework.
    • Thoroughly tested front-end React components using Jest.
    • Created and maintained a high number of unit tests for the microservices using xUnit and Fluent Assertions.
    • Developed and maintained a set of integration tests between the different microservices using SpecFlow.
    Technologies: CSS, HTML, SQL, C#, React
  • Web Developer

    2016 - 2017
    Agea S.A.
    • Helped to maintain one of the legacy CRMs of the company; used ASP.NET MVC and SQL.
    • Created an app using Angular 2 with TypeScript and Gulp. This tool was an add-on for the company's real-estate CRM that let its users upload and edit new developments.
    Technologies: C#, Gulp, TypeScript, Angular
  • Web Developer

    2015 - 2016
    Competir S.A.
    • Created a web tool application for the company's internal use to moderate user-generated content; used ASP.NET MVC, Knockout.js, and SQL.
    • Built a web content management system (CMS) for the website,; used ASP.NET MVC 4, AngularJS, ASP.NET Web API 2, and NHibernate.
    • Developed an OAuth 2.0 authorization server for the SSO of the different products of the company. The server was implemented on Node.js and using Couchbase as the database.
    • Created a web application to manage the content of the site,; used AngularJS, ASP.NET Web API, and Elasticsearch.
    Technologies: Couchbase, ASP.NET Web API, ASP.NET MVC, Knockout.js, Angular
  • Web Developer

    2013 - 2015
    Starcom Mediavest Group
    • Created a POC desktop app using ASP.NET WinForms, LINQ, and MDX queries. The app, using a statistical algorithm and historical data, allowed users to forecast the agency spending for the next few years.
    • Developed a web application that was oriented to media spending reports, with filters per agency, client, country and media type; used ASP.NET MVC, jQuery, and MDX queries.
    • Built a web application for media agencies which allows users to manage the entire workflow of media contracts and billing for a new media campaign; used ASP.NET Web Forms, jQuery, SQL, and NUnit.
    Technologies: jQuery, CSS, HTML, JavaScript, ASP.NET MVC



  • Languages

    JavaScript, CSS3, TypeScript 3, HTML5, TypeScript, SQL, GraphQL, Sass, SCSS, HTML, CSS, C#
  • Frameworks

    Redux, Express.js, Next.js, ASP.NET MVC, Koa, Jest, ASP.NET Web API, Angular, Bootstrap 3, Knockout.js
  • Libraries/APIs

    React Redux, Node.js, React, Ramda, Passport.js, jQuery, WinForms
  • Tools

    Git, VS Code, Mongoose, Webpack 3, NPM, Babel, React Apollo, Slack, Gulp, Auth0, Yeoman, Visual Studio 2015
  • Paradigms

    REST, Scrum, Functional Programming
  • Other

    APIs, Enzyme, OOP Designs, ESLint, Apollo Server
  • Platforms

    Windows, MacOS, Contentful, Linux
  • Storage

    SQL Server 2014, MongoDB, SQL Server 2008 R2, Couchbase


  • Contentful Certified Professional
    APRIL 2020 - APRIL 2022

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