Eduardo Salazar

Senior Full-Stack Software Engineer
Web, mobile, and APIs
Explore my projects

About Me

Software engineer with over 15 years of experience building and delivering software for healthcare, business operations, and commerce. I work across frontend, backend, and mobile applications, from requirements and architecture to debugging and delivery.

I use Claude and Codex in agentic engineering workflows for code analysis, implementation, debugging, and automated testing.

Happily married with two children, soccer fan and a chess enthusiast.
  • Residence Ecuador
  • Address Santo Domingo, Coop. Vistor Manuel Lopez
  • e-mail eduardo@eduardosalazar.tech
  • Phone +593 979875425

What I Do

Backend

APIs and services with .NET and Node.js, backed by relational and non-relational databases.

Critical Thinking

A problem solver by nature, I've worked on different types of projects: Accounting, Project Management, Cloud Solutions, EMR, Sports and more.

Frontend & Mobile

Web interfaces with React, Angular, and Svelte, and mobile applications with React Native and Expo. Experience with TypeScript, JavaScript, HTML, and CSS.

Agile

Experienced in Agile teams, including daily stand-ups, backlog refinement, and retrospectives.

Resume

Education

2001-2006
Pontificia Universidad Católica del Ecuador

Bachelor's Degree in Systems Engineering

Learned all the fundamentals of computer science and software development.

Experience

03/2023 - Present
Mellowood Medical

Senior Software Engineer

  • Completed the migration of a healthcare portal from ASP.NET Zero to ABP Framework, adapting backend services, authentication, permissions, and Angular modules.
  • Implemented single sign-on (SSO) integrations across C# backend services and Angular authentication workflows.
  • Unified email and SMS notifications with configurable providers, including OAuth2 authentication for email services.
  • Improved messaging reliability through batch-processing and webhook fixes, backed by automated regression tests.
  • Provide direct technical support to clients, troubleshoot production issues, and deliver application fixes.
  • Apply agentic engineering with Claude and Codex for code analysis, implementation, debugging, and automated testing.

Technologies: C#, ASP.NET Core, ASP.NET Zero, ABP Framework, Angular, TypeScript, SQL Server, Entity Framework Core, OAuth2, xUnit.

08/2021 - 02/2023
ARMS Health (formerly AthleteRMS)

Senior Software Engineer

  • Modernized components from a legacy Web Forms application using .NET Core and React.
  • Built an external API to provide clients with application data.
  • Diagnosed and resolved technical issues across multiple projects.
  • Built a proof of concept integrating React components into the legacy Web Forms application.

09/2020 - 07/2021
Bairesdev -> Texas Rural Water Association

Senior Software Engineer

  • Implemented a billing component that helped the client reduce the collection time by 30%
  • Extended the project management system with complex business rules required by the client.
  • Implemented CI/CD in Azure DevOps, improving testing and delivery speed by 60%.

07/2019 - 08/2020
Bairesdev -> HASC (Healthy & Safety Council)

Senior Software Engineer

  • Migrated an electronic medical records (EMR) application from Windows Forms to .NET Core and Angular.
  • Improved the existing database schema and migrated it to SQL Server.
  • Integrated the Angular application with an existing ASP.NET authentication system.
  • Made the application interact with JOPARY insurance standards
  • Set up the test environment on an Azure virtual machine.

03/2019 - 06/2019
Bairesdev -> TechData

Senior Software Engineer

  • Integrated Symantec as a new vendor by creating backend endpoints and adapting the interface to its requirements.

06/2018 - 02/2019
Scanner - Contractor

Software Engineer

  • Gathered client requirements for the mobile application.
  • Held regular meetings to demonstrate progress and gather feedback.
  • Developed a Xamarin.Forms mobile application to meet client requirements and delivery deadlines.
  • Published the application on Google Play and the App Store.

04/2013 - 05/2018
San Daniel

Software Engineer

  • Developed a payroll system using Windows Forms with Crystal Reports, which helped to reduce payment processing time by 25%.
  • Built a web application using PHP and MySQL to share payslips with employees in a more efficient way.

06/2011 - 03/2013
TCS - Pichincha Bank

Support Engineer

  • Helped users resolve database and software issues.
  • Documented systems and applications to support training for new and existing team members.

Programming Skills

C# / .NET Core / ASP.NET APIs

90%

Angular

75%

React

70%

JavaScript / HTML / CSS / jQuery

90%

Languages

  • Spanish (Native)
  • English (Advanced)

Selected projects

A live product and a public code sample, connecting user interfaces, APIs, and data.

Vendo

Visit Vendo (opens in a new tab)

From product photos to a catalog ready to share.

A digital catalog platform for small businesses. Sellers photograph their products, use AI to generate product information and remove backgrounds, and share a web catalog with a cart, orders, and PDF export.

Mobile & web

A React Native and Expo seller app, public storefronts built with Astro and React, and a React admin application.

Backend & integrations

An ASP.NET Core API with PostgreSQL, AI processing, cloud image storage, and subscription integrations.

  • C# / .NET
  • TypeScript
  • React Native
  • Expo
  • Astro / React
  • PostgreSQL

ContentCMS

View source on GitHub (opens in a new tab)

A content management application built on ASP.NET Boilerplate with an Angular editor. The custom content module includes create and update workflows, validation, persistence, dynamic navigation, and automated tests.

  • ASP.NET Core
  • Angular
  • Entity Framework Core
  • SQL Server
  • xUnit / Jasmine

A legacy code sample with a documented setup and clear attribution to the underlying framework.

Browse more code on GitHub

Contact

Ecuador

+593979875425

eduardo@eduardosalazar.tech

Freelance Available

How Can I Help You?