Ernesto MangiaFull Stack Developer
Senior full stack software developer with bachelor's in information systems and 10+ years of experience in .NET technologies. Hands-on the development of a new live chat version and administration tools using C#, Angular, Bootstrap, jQuery, and SQL Server, among others. Self-motivated, self-contained, analytical thinking, friendly, and a great team player.
Tech stack
.NET (11)
C# (11)
Microsoft SQL Server (11)
SQL (8)
CSS (8)
HTML (8)
jQuery (8)
ASP.NET MVC (5)
ASP.NET (4)
Bootstrap (4)
Elasticsearch (4)
TypeScript (3)
Angular Material (3)
REST APIs (3)
Angular (3)
Entity Framework
C#.NET
NoSQL
T-SQL
.NET Core
NHibernate
Experience
Full Stack DeveloperClimate Earth
07/2019 - 05/2022

Spearheaded the implementation of an administration online app to support 100+ clients in 4+ countries. Migrated an administration tool from .NET Framework to .NET 6. Designed, coded, tested, maintained, and delivered software on time according to business needs. Implemented front-end components and back-end services using .NET, C#, Web API, Keycloak, Angular, Angular Material UI, and Typescript. Planned, designed, and developed new solutions by analyzing users' needs. Trained and mentored new senior software developers. Deployed to test and production servers using stand-alone virtual machines. Applied Entity Framework, AutoMapper, HTML5, CSS, and SQL Server to software development. Managed project scope, time, and tasks using a hybrid of Scrum and Kanban with Jira.

C#
.NET
REST APIs
Microsoft SQL Server
Angular
Angular Material
TypeScript
SQL
Full Stack DeveloperFormilla.com
05/2016 - 06/2019

Developed a Live Chat as a service for Formilla.com offers. Worked as a Senior Full Stack .NET Developer on a team of 7+ people including a team leader, a software architect, developers, and testers. Spearheaded the development of 15+ features used by 10k+ users such as IP blocking, file sharing, billing, chat transcripts, and pre-chat fields. Applied C#, ASP.NET Web Forms, JavaScript, jQuery, Bootstrap, CSS, HTML, and SQL Server to software development. Led the development of the company blog and the maintenance of 6+ CRM plugins 5-star rated. Increased customer retention rate by planning, designing, and implementing new solutions on time based on users' feedback. Identified, diagnosed, and solved 99% of technical support tickets without needing to escalate them to engineers. Trained and mentored new senior software developers and customer support, representatives. Managed scope, time, and tasks of assigned projects using Scrum in a team and startup environment.

ASP.NET
C#
.NET
Microsoft SQL Server
SQL
Elasticsearch
jQuery
Bootstrap
HTML
CSS
Full Stack DeveloperHexacta
04/2014 - 04/2016

Developed an Underwriting Management System for the web app that supports Schinnerer’s core business operations such as quoting, rating, bidding, and billing insurance policies. Worked as a Full Stack .NET Developer on a team of 7+ software engineers. Responsible for analyzing, coding, testing, maintaining, and delivering new features on-time according to business needs using C#, .NET Framework, and ASP.NET MVC. Identified, diagnosed, and fixed web application problems. Maintained and implemented enhancements to features like auto-rating a policy, pro-rating a policy, cancellations, and renewals. Applied jQuery, CSS, HTML, SQL Server, NHibernate, and NServiceBus to software development. Trained and mentored new semi-senior software developers. Managed time and tasks of assigned stories. Collaborated in a team environment using the Scrum methodology.

C#
.NET
jQuery
ASP.NET MVC
Microsoft SQL Server
SQL
HTML
CSS
Full Stack DeveloperWinxis
02/2012 - 03/2014

Developed a Travel Management System, a web app consisting of a platform that lets bus companies quote, manage, sell, and bill trips including the administration of buses, routes, drivers, and passengers. Worked as a Junior .NET Developer together with a software architect. Designed, coded, and tested new features and modules using C#, MVC, jQuery UI, and SQL Server. Built a whole new mobile app using jQuery and Apache Cordova to track buses' mileage. Wrote SQL queries and created views and triggers in SQL Server.

C#
jQuery
ASP.NET MVC
.NET
Microsoft SQL Server
HTML
CSS
Education
Master of Information Systems EngineeringNational Technological University
02/2019 - 02/2023
Bachelor of Information SystemsAutonomous University of Entre Rios
04/2010 - 04/2018