# Andrew User

Andrew User is a remote worker on Himalayas, Senior Frontend Engineer at QuikTrip, based in Brazil.

Source: https://himalayas.app/@andrewuser26

```text
I build high-traffic web and mobile applications with React, React Native, TypeScript, and cloud platforms.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Brazil |
| Authorized to work in | United States |
| Salary expectations | 60k+ USD |
| Job categories | Frontend Engineer, Mobile Engineer, Full Stack Developer |
| Skills | Agile, SEO, Ecommerce, User Experience, Algorithms, Data Structures, Problem Solving, React, React Native, TypeScript, Next.js, Tailwind, NodeJS, ReactContext, React Hooks, Redux, React Query, Ant Design, Figma, Adobe Illustrator, OpenAI API, AWS Lambda, API Gateway, Auth0, Stripe, Azure DevOps, Scrum, Kanban, Terraform, React Router, Express, Recharts, Elasticsearch, Objective C, Swift, Java, Babel, Jest, Mocha, Chai, AWS, Azure, Google Cloud Platform, HTML5, CSS, JavaScript, PrimeNG, Bootstrap, Gatsby, GraphQL, Firebase, Twilio, ZoomSDK, SASS, Cypress, Jira, Git, Jenkins, PostgreSQL, MongoDB, Google Data Studio, jQuery, JSON, AJAX, Yup, Redux Saga, Webpack, Grunt, NPM, Passports, JWT, Photoshop, SQLAlchemy, Docker |
| LinkedIn | https://linkedin.com/in/elton-swe |

## About

```text
I've built high-traffic web and mobile products for QuikTrip, TOTVS Latam, Mission Cloud, and NavigatorCRE. At QuikTrip, I engineered a React/Next.js application, improved team efficiency by 45%, reduced loading times by 30%, and increased checkout completion by 10%.

Across eight years in software development, I've delivered React and React Native applications, native iOS and Android modules, cloud integrations, CI/CD pipelines, and scalable frontend architectures. I also mentor teammates through code reviews and use Agile practices to move projects from design through delivery.
```

## Experience

### Senior Frontend Engineer (current)

QuikTrip. Oct 2021 - Present

```text
Engineered a high-traffic web application using React.js, Next.js, TypeScript, and Tailwind CSS, boosting team efficiency by 45% through agile methodologies. Revitalized a React dashboard with layered abstraction, improved site performance by 30% with NodeJS APIs, and integrated Auth0 and Stripe for enhanced security and payment processing.
```

Skills: React, Next.js, TypeScript, Tailwind, ReactContext, React-Hooks, Redux, React-Query, Ant-Design, NodeJS, Figma, Adobe-Illustrator, OpenAI-API, AWS-Lambda, API-Gateway, Auth0, Stripe, Azure-DevOps, CI-CD, Agile, Scrum, Kanban, Terraform

### Senior React & React Native Engineer

TOTVS Latam. Jul 2022 - Jul 2023

```text
Developed a SaaS React/Next.js web app from scratch with isomorphic architecture for SEO, built an admin dashboard with rechart.js, and crafted cross-platform mobile apps using React Native. Implemented native iOS and Android modules, conducted unit testing with Jest, Mocha, and Chai, and reduced system failure rates by 70%.
```

Skills: React, Next.js, React-Native, TypeScript, Redux, React-Router, Express, Rechart.Js, Elasticsearch, Objective-C, Swift, Java, Jest, Mocha, Chai, AWS, Azure, GCP, Babel, ES6, JSX

### Senior Software Developer

Mission Cloud. Oct 2019 - Aug 2021

```text
Spearheaded UI development using React, Redux, HTML5, CSS3, JavaScript, and Bootstrap, and utilized Gatsby.js for static site generation with GraphQL, achieving high web vital scores. Built hybrid mobile apps with React Native, integrated third-party libraries, and migrated applications to React 17.
```

Skills: React, React-Hooks, Redux, HTML5, CSS, JavaScript, PrimeNG, Bootstrap, Gatsby, GraphQL, Headless-CMS, React-Native, Firebase, Twilio, Stripe, ZoomSDK, AWS, TypeScript, Tailwind, SASS, Cypress, Agile, Jira, Git, Jenkins, PostgreSQL, MongoDB, Google-Data-Studio

### Full Stack Developer

NavigatorCRE. Nov 2017 - Oct 2019

```text
Engineered dynamic, multi-browser compatible pages using HTML5, CSS3, JavaScript, jQuery, React JS, React Native, and AJAX. Upgraded React components, implemented Redux Saga with GraphQL, and designed PostgreSQL schemas with SQLAlchemy, while automating services with Docker.
```

Skills: HTML5, CSS, JavaScript, jQuery, React, React-Native, AJAX, Yup, Azure, Redux-Saga, GraphQL, React-Router, React-Redux, ES6, Webpack, Grunt, NodeJS, NPM, Passports, JWT, Photoshop, Illustrator, Git, GitHub, PostgreSQL, SQLAlchemy, Docker

## Education

### HubSpot Academy

Certified SEO Expert, Search Engine Optimization

```text
Certified SEO Expert certification from HubSpot Academy, issued in June 2023 and expiring in July 2024.
```

### Universidade de São Paulo

Bachelor's degree, Computer Science. 2013 - 2017

```text
Bachelor's degree in Computer Science from Universidade de São Paulo, completed in 2017.
```

### HackerRank

Certified Problem Solver, Problem Solving

```text
Certified Problem Solver certification from HackerRank.
```

## Tech stack

- Microsoft Azure
- Google Cloud Platform
- Jenkins
- React Native
- Sass
- PostgreSQL
- MongoDB
- Node.js
- Next.js
- Tailwind CSS
- Bootstrap
- Figma
- Adobe Photoshop
- Terraform
- Azure DevOps
- Jira
- Babel
- Ant Design
- Jest
- Cypress
- Mocha
- Chai
- React
- jQuery
- React Query
- Webpack
- Grunt
- JavaScript
- HTML5
- Java
- Swift
- JSON
- Objective-C
- SQLAlchemy
- Stripe
- GraphQL
- Firebase
- Elasticsearch
- AWS Lambda
- Redux
- redux-saga
- TypeScript
- Auth0
- Passport
- Git
- Docker
- Twilio
- Gatsby
- Adobe Illustrator
- npm
- React Router
- OpenAI API
- Yup
- Recharts
- Express

To contact Andrew, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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