Alonso Godinez Salazar, Developer in Tacna, Peru
Alonso is available for hire
Hire Alonso

Alonso Godinez Salazar

Verified Expert  in Engineering

Software Developer

Tacna, Peru
Toptal Member Since
January 29, 2020

Alonso is an experienced professional with five years of experience in the IT industry, specializing in software engineering. He is a self-driven and detail-oriented full-stack JavaScript developer with a focus on quality and exceeding expectations of both internal and external clients. He's also familiar with the MERN stack.


Amazon Web Services (AWS)
AWS CloudFormation, Bash, Python, Ruby, AWS Lambda, React, Cypress, Mocha...
Bubbles (Notch)
AWS CloudFormation, Node.js, Chrome Extensions, React, Redux, TypeScript...
JavaScript, TypeScript, Python, AWS CloudFormation, Serverless Framework, React...




Preferred Environment

GitHub, Visual Studio Code (VS Code), MacOS, Slack, Jira, WebStorm

The most amazing...

...thing I've worked on was an e-learning and content authoring platform that has a fully interactive course and widget creator with a custom exporting service.

Work Experience

Front-end Engineer II

2023 - PRESENT
Amazon Web Services (AWS)
  • Migrated integration tests from WebDriver to Cypress.
  • Implemented filtering using friendly usernames instead of IDs in OpsCenter-Systems Manager (client-only).
  • Updated deprecated dependencies and infrastructure.
Technologies: AWS CloudFormation, Bash, Python, Ruby, AWS Lambda, React, Cypress, Mocha, Sinon.JS, Java, TypeScript, JavaScript

Senior Software Engineer

2022 - 2022
Bubbles (Notch)
  • Developed a real-time transcripts feature that increased the views/engagement and responses of long-form videos by 3%.
  • Implemented Template Bubbles, an internally used feature that increases productivity in conversations with leads and prospect users.
  • Triaged bugs that directly impact UX and media (camera/microphone) leaks.
  • Implemented a new layout on topics which resulted in making information more engaging.
Technologies: AWS CloudFormation, Node.js, Chrome Extensions, React, Redux, TypeScript, JavaScript

Software Engineer

2021 - 2022
  • Developed and maintained a front-end app for a new app and service using TypeScript and React.
  • Built the main design system library shared through GitHub's private package manager.
  • Defined the software engineers' code guidelines on a team.
  • Reduced the bundle size of an internal app and service by 30%.
Technologies: JavaScript, TypeScript, Python, AWS CloudFormation, Serverless Framework, React, CSS, HTML5, Git, Agile, GitHub, ECMAScript (ES6), Material UI, Asana, Bash Script, CSS3, HTML, Front-end

JavaScript Developer

2020 - 2021
Toptal Client
  • Developed an MVP of the app, using WebRTC, Firebase Cloud Functions, and React SPA.
  • Ported the web app as a desktop app using Electron and Electron Forge.
  • Migrated from Semantic UI to Material-UI and styled-components.
Technologies: Electron, OpenTok, React Router, Node.js, Styled-components, Material UI, Firebase Cloud Functions, Cloud Firestore, React, Firebase Cloud Messaging (FCM), ECMAScript (ES6), JavaScript, Next.js, CSS, HTML5, Git, Agile, React Redux, GitHub, Firebase,, TestCafe, Bash Script, CSS3, HTML, Firebase Web SDK, Firebase Realtime Database, Firebase Authentication, Tailwind CSS, Front-end

Software Developer

2020 - 2021
  • Integrated the FullCalendar library with the legacy codebase, reduced technical limitations for drag and drop features, and styled issues with the former core calendar library. Constructed it to easier inject custom components.
  • Implemented a global keyboard shortcuts component that can be used by any component regardless of its input-based element.
  • Reduced the bundle size using code splitting techniques, including route base split and tree shakeable libraries.
  • Optimized most legacy class-based and functional components and upgraded to the latest version of React, all related dependencies, and deprecated APIs.
  • Split the core component, reducing its complexity and performance, and made it reusable for new features.
  • Improved Redux store performance using local-forage as cache and reselect for memoization.
  • Improved the UX of the OAuth (Google, Microsoft) and third-party integrations (Slack, Asana) flow.
  • Developed a guide to handle the z-index hierarchy across the whole app.
  • Added new features and fixed bugs on-demand using Asana and Sentry.
Technologies: Asana, Figma, Sentry, Moment.js, Chai, React Router, Yarn Workspaces, Bash Script, ECMAScript (ES6), Gin-Gonic, Go, Redux Thunk, Redux, Styled-components, Webpack, Chrome Extensions, React, JavaScript, CSS, HTML5, Git, Agile, React Redux, GitHub, CSS3, HTML, Front-end

Full-stack JavaScript Developer

2019 - 2020
  • Assembled UI updates, fixed known bugs with high priority, and refactored core components of the legacy app.
  • Automated the export of the app to Android and iOS using Apache Cordova and Bash/npm scripts.
  • Implemented API connectivity to Vendor SOAP API, designed the architecture and made DB migrations to support synchronization events using RabbitMQ.
  • Documented all endpoints related to Vendor SOAP API using Swagger UI and wrote unit tests.
Technologies: Amazon S3 (AWS S3), RabbitMQ, Rancher, Docker, SOAP, Cordova, MongoDB, JavaScript, Express.js, Node.js, Redux, React, CSS, HTML5, Linux, Git, Agile, React Redux, GitHub, PostgreSQL,, ECMAScript (ES6), CSS3, HTML, Front-end

JavaScript Engineer

2018 - 2019
  • Led the notifications feature, took part in planning, development, testing, and integration with a small team, using the feature-flag strategy.
  • Maintained and added features to our main product, a text authoring and course creation platform, using Jira as a reporting tool and Trello as a subtask manager.
  • Participated in decision-making regarding the design and architecture of features and the team workflow on every sprint.
Technologies: Video.js, Elasticsearch, Express.js, Node.js, Loopback, Docker, MongoDB, Froala, Vuex, Vue, React, Pug, CSS, JavaScript, HTML5, Linux, Git, Agile, React Redux, GitHub,, ECMAScript (ES6), CSS3, HTML, Bitbucket, Front-end

Front-end Developer

2017 - 2017
  • Maintained client legacy apps, making accessibility and cross-browser compatibility improvements on previously exported widgets.
  • Developed and integrated proof of concept of a content authoring platform to the client staging environment using the MERN stack, GraphQL, and Apollo.
  • Tracked and fixed overall bugs using Jira as a reporting tool.
Technologies: Node.js, Redis, MongoDB, Apollo, GraphQL, A11Y, MooTools, CoffeeScript, JavaScript, Redux, React Redux, Socket.IO, React, Pug, CSS, HTML5, Linux, Git, Agile, GitHub,, CSS3, HTML, Bitbucket, Front-end

Back-end Developer

2015 - 2016
  • Built and maintained an ERP software as a service for small to medium businesses with a microservice architecture using Laravel as the core and Node.js for heavy transactions and real-time features.
  • Tracked and fixed bugs using the Trello and Kanban board.
  • Implemented notifications and chat for customer assistance, using real-time technologies.
Technologies: Dropbox API, React, MongoDB, PostgreSQL, Seneca.js, Socket.IO, Node.js, CSS, JavaScript, HTML5, Linux, Git, Agile, GitHub,, CSS3, HTML

Back-end Developer

2014 - 2015
  • Developed the back end for an Uber-clone MVP that allows secure and fast user-taxi matching based on geo-fence distances. Currently integrated and used by well-known taxi companies in Perú.
  • Designed the app architecture to support requests of the two apps in realtime, also making it very easy to integrate with existing taxi companies.
  • Configured and deployed API for development and production environments to monitor app performance through log files.
  • Designed an admin dashboard that allows managers to quickly customize and maintain their employees.
Technologies: Pug, Bootstrap, Twilio, Redis, MongoDB, Express.js, Socket.IO, Node.js, CSS, JavaScript, HTML5, Linux, Git, Agile, GitHub,, CSS3, HTML

A TypeScript-based app that uses user-input sources to generate enriched content for asynchronous communication. It uses conflict-free replicated data type (CRDT) with a Redux (server and client) architecture.

I worked on the transcripts feature and improved the UI, layout, and components for a "bubble."

A React-based app for time and calendar blocking and productivity-boosting.
I worked on the back end, and front end, but I spent most of the time maintaining and adding React components and the Chrome extension features.

The biggest one I worked on is the calendar, where we can block tasks, sync Google calendar events, drag in and out custom components of the app, etc.

A web application built mainly with Vue.js and Loopback.js for next-generation interactive content authoring and e-learning widgets creation platforms.

I was a JavaScript engineer in charge of building and maintaining core features of the app, including the attachment block on course creator, the notifications service, the layers editor, the global files upload modal, and all of the components of the course creator, a key feature of the app.
2012 - 2016

Bachelor's Degree in Systems Engineering

Jorge Basadre Grohmann University - Tacna, Peru


React, React Redux, Firebase Web SDK, Node.js, Vue, Socket.IO, Seneca.js, Dropbox API, MooTools, Vuex, React Router, Chai, Moment.js, Reselect, Sinon.JS


Firebase Cloud Messaging (FCM), Firebase Authentication, Git, AWS CloudFormation, WebStorm, Jira, Slack, GitHub, Bitbucket, Froala, RabbitMQ, Webpack, Redux Thunk, Yarn Workspaces, Sentry, Figma, Asana, Mocha


Redux,, Cypress, Express.js, Bootstrap, Loopback, Video.js, Gin-Gonic, Material UI, Electron, Tailwind CSS, TestCafe, Serverless Framework, Next.js


JSON, Firebase Realtime Database, MongoDB, Redis, Elasticsearch, Amazon S3 (AWS S3), Cloud Firestore, PostgreSQL


CSS, ECMAScript (ES6), JavaScript, Pug, TypeScript, CSS3, HTML, HTML5, CoffeeScript, GraphQL, Go, Bash Script, Python, Bash, Ruby, Java


Firebase, Linux, AWS Lambda, MacOS, Visual Studio Code (VS Code), Twilio, Rancher, OpenTok, Docker




Front-end, Firebase Cloud Functions, APIs, A11Y, Apollo, Cordova, SOAP, Chrome Extensions, Styled-components, Web Accessibility

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.


Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring