Simera Professional Key (SPK)

Miguel A

Brasil

Senior Frontend Engineer

$ 3,700/month

10 yrs exp

Experienced Senior Software Engineer with a proven track record in building scalable applications using Node.js, React, and TypeScript. Skilled in code optimisation and seamless user experiences. Extensive background in unit testing and integration. Available for Front End and Full Stack Developer positions.

Skills

  • CI/CD
  • Datadog
  • Git
  • React
  • Redux
  • SAP
  • Typescript
  • Cypress
  • GraphQL
  • Notion
  • ReactJS
  • StoryBook
  • VMotion
  • Zustand
  • RESTful APIs
  • CICD
  • notion
  • Nuxt.js
  • Nest.js
  • ENGINNER
  • Next.js
  • Next js
  • Accessibility
  • Tanstack Query
  • Playwright
  • press
  • Accesibility
  • REST APIs
  • Vitest
  • Tailwind CSS
  • GSAP
  • Three.js
  • Type Script
  • Typescrtipt
  • Web Accessibility
  • motion
  • Threejs
  • Typescripts

Miguel A

Brasil

Senior Frontend Engineer

$ 3,700 /month

10 yrs exp

Experienced Senior Software Engineer with a proven track record in building scalable applications using Node.js, React, and TypeScript. Skilled in code optimisation and seamless user experiences. Extensive background in unit testing and integration. Available for Front End and Full Stack Developer positions.

Skills

  • CI/CD
  • Datadog
  • Git
  • React
  • Redux
  • SAP
  • Typescript
  • Cypress
  • GraphQL
  • Notion
  • ReactJS
  • StoryBook
  • VMotion
  • Zustand
  • RESTful APIs
  • CICD
  • notion
  • Nuxt.js
  • Nest.js
  • ENGINNER
  • Next.js
  • Next js
  • Accessibility
  • Tanstack Query
  • Playwright
  • press
  • Accesibility
  • REST APIs
  • Vitest
  • Tailwind CSS
  • GSAP
  • Three.js
  • Type Script
  • Typescrtipt
  • Web Accessibility
  • motion
  • Threejs
  • Typescripts

Senior Frontend Engineer

Stack Builders
December 2025 - present

Leading development of a documentation platform with MDX tooling that converts content into dynamic, interactive components. Building a design system of reusable UI primitives that powers the platform and enables rapid content iteration, supporting 300+ pages and 100+ unique components.

Senior Fullstack Engineer

Mindera
December 2024 - December 2025

Built a serverless Shopify fullstack headless storefront with Next.js, the Storefront API, with SST and all deployed in AWS. Partnered with design team to translate mockups into high performance, accessibility optimized frontend code, leveraging agentic workflows to improving iteration speed. Created AI workflows for content team contributions, including automatic localization, enabling the content team to translate copies with a single prompt.

Senior Frontend Engineer

OLX Group
November 2023 - November 2024

Led E2E testing migration from Cypress to Playwright for the marketplace sellers experience. Configured GitLab CI/CD pipelines and integrated New Relic for error tracking and performance monitoring with Slack alerting. Monitored and optimized Core Web Vitals for the marketplace sellers experience.

Senior Fullstack Engineer

Webflow
June 2022 - October 2023

Led development of Devlink, connecting Webflow components directly to React projects. Built component serialization with ASTs, stylesheet synchronization, and an accessibility compliant React component library following WAI-ARIA patterns for Webflow primitives. Collaborated with DX team on workflow design, E2E testing, and Datadog dashboards for error tracking and user adoption metrics.

Senior Frontend Engineer

X-Team
April 2021 - June 2022

Built a 3D preview editor for a bathroom renovation SaaS using Next.js, Three.js, and React Fiber. Implemented Three.js best practices, minimizing draw calls and optimizing asset disposal, for performance. Established E2E testing suite with Cypress and GitHub CI to prevent visual regressions.

Senior Frontend Engineer

ISeatz
May 2019 - March 2021

Led development of an internal component library optimized for fast development, maintenance, with accessibility first design and automated testing. Implemented E2E testing with Mocha and Cypress, and built CI/CD pipelines on AWS CodeBuild.

Frontend Engineer

Concrete Solutions
August 2017 - April 2019

Led frontend development of a banking application with React and Next.js, coordinating with design and product teams on design system implementation with accessibility and performance standards. Co developed Redux Zero, an open source state management library.

Frontend Engineer

Comida da Gente
June 2016 - July 2017

Built features for a social network connecting food producers to consumers using a large scale React codebase. Practiced code reviews, unit and E2E testing, and cross functional collaboration.

Web Designer

Piloti Mobile
December 2015 - May 2016

Translated designs into code, creating landing pages and CMS/e-commerce templates. Developed responsive landing pages and e-commerce templates using HTML, SCSS, and JavaScript. Implemented interactive front-end elements and dynamic functionality using jQuery to enhance user experience.

Smart Scores

Communication
90
Role Fit
95
Adaptability
95
Problem-solving
80
Simera English
80
Professional Presence
90
Drive/Initiative
95

Smart Skills

beta