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Macgyver – AWS, React, Typescript, experts in Lemon.io

Macgyver

From Brazilflag

Full-stack Web Developer|Senior

Macgyver – AWS, React, Typescript

Macgyver is a senior full-stack engineer with 15 years of experience, specializing in React, Node.js, AWS, and Next.js. He demonstrates strong architectural expertise in distributed and event-driven systems, coupled with a client-first mindset, clear communication, and ownership of both technical and product decisions. Analytical and reflective, he approaches complex problems methodically and is passionate about delivering impactful, scalable solutions.

15 years of commercial experience in
Cryptocurrency
Edtech
Entertainment
Fintech
Telecommunications
Transportation
B2C
SaaS
Main technologies
AWS
4.5 years
React
10 years
Typescript
7 years
Node.js
5 years
Next.js
1 year
Additional skills
Vercel
Express.js
Vue.js
AI
Golang REST API
Golang
Direct hire
Possible
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Experience Highlights

Full-Stack Engineer
Jul 2023 - Dec 20252 years 5 months
Project Overview

One of the world’s leading cryptocurrency exchange platforms, enabling millions of users to buy, sell, and manage digital assets such as Bitcoin, Ethereum, Litecoin, and many others. The project focused on building internal platforms that support critical business operations, operational workflows, and data-driven processes used by globally distributed teams across the company.

Responsibilities:
  • Built and shipped features for internal platforms used by global teams to run critical business operations.
  • Developed frontend features using React and TypeScript and contributed to backend services in Golang within a cloud-native, microservices-based architecture.
  • Worked with event-driven systems and modern CI/CD pipelines in a large-scale distributed environment.
  • Collaborated across multiple teams to coordinate releases and deployments in shared service ecosystems.
  • Leveraged AI-assisted development workflows to accelerate delivery and improve code quality
Project Tech stack:
React
Typescript
Jest
Node.js
GraphQL
Relay
Docker
Protobuf
Golang
GitHub Actions
Cursor
Datadog
Lead Smart-TV App Engineer
Feb 2022 - Aug 20231 year 6 months
Project Overview

A streaming platform that provides on-demand access to movies, TV shows, and music, while integrating with multiple Smart-TV and streaming device ecosystems.

The project focused on building and scaling a large Smart-TV application for Samsung (Tizen) and LG (webOS), delivering a consistent, high-performance experience to a broad user base

Responsibilities:
  • Worked as a Lead engineer for a Smart-TV application targeting Samsung (Tizen) and LG (webOS).
  • Defined frontend architecture and technical standards to support a scalable, high-performance product.
  • Architected, developed, and shipped new features and applications to Smart-TV stores.
  • Built an internal SDK and CLI in Node.js to automate and standardize the creation of Smart-TV applications using JavaScript.
  • Managed a team of engineers through 1:1s, mentoring sessions, and code reviews, fostering technical growth and code quality.
  • Conducted technical interviews and evaluated coding assessments for new hires
Project Tech stack:
Typescript
React
Node.js
Tizen
Jest
GitHub
Senior Software Engineer
Sep 2020 - Nov 20211 year 2 months
Project Overview

A B2B education technology startup that built a digital learning platform enabling companies to upskill and train employees through highly customizable learning experiences. The platform was adopted by large Brazilian enterprises such as Ambev, XP Investimentos, Nubank, and others, and became a key product in the company’s acquisition by UOL EdTech.

Responsibilities:
  • Led frontend development for major parts of the platform, focusing on scalability, usability, and maintainability.
  • Built a new admin dashboard from scratch using Vue.js and NestJS, enabling flexible management of courses, users, and training programs.
  • Introduced and established a testing culture, significantly improving product stability, delivery confidence, and development speed.
  • Delivered multiple high-impact features that strengthened the platform and supported business growth.
  • Collaborated closely with product and design to translate complex requirements into high-quality user experiences.
Project Tech stack:
Vue.js
Vuex
Jest
Unit testing
Nest.js
TypeORM
PostgreSQL
Senior Software Engineer
Jul 2019 - Mar 20208 months
Project Overview

A peer-to-peer car-sharing startup that enabled users to rent vehicles from other individuals, facilitating thousands of monthly rentals before COVID-19 impacted operations. The platform supported core marketplace flows such as user onboarding, vehicle validation, payments, insurance issuing, and fraud prevention

Responsibilities:
  • Owned both frontend (React) and backend (Node.js) development of internal back-office tools used by support, anti-fraud, operations, and business teams.
  • Developed and maintained Node.js microservices supporting payments, insurance issuing, fraud-prevention, and onboarding workflows.
  • Implemented a real-time automated validation system for user and vehicle onboarding, reducing fraud attempts and improving registration experience.
  • Designed and provided data streaming and API endpoints to supply near real-time data to Data Science and Analytics teams, enabling fraud detection and business insights.
  • Collaborated closely with product, operations, and data teams to improve internal workflows and system reliability
Project Tech stack:
Node.js
Express.js
DynamoDB
MongoDB
React
Jest
Unit testing
Docker
AWS
Amazon SQS
Kafka
Microservices
CTO
Dec 2016 - Jun 20192 years 5 months
Project Overview

A B2B platform that connected car dealerships with their customers, helping improve communication, relationship management, and sales processes through digital channels. The platform provided web and mobile solutions that enabled dealerships to manage leads, interact with clients, and streamline their operations

Responsibilities:
  • Led the engineering organization, driving technical strategy, execution, and delivery aligned with business goals.
  • Owned roadmap planning, team and product management, and prioritization of initiatives.
  • Established and evolved Agile processes (Scrum and Kanban), improving predictability, collaboration, and delivery speed.
  • Conducted regular code reviews, technical mentoring, and architectural guidance.
  • Started as a Full-Stack Developer and helped build the platform from the ground up.
  • Designed and developed the web dashboard UI for dealership operations.
  • Built the first version of the iOS mobile app using Ionic.js.
  • Designed and implemented the Node.js API consumed by both web and mobile applications
Project Tech stack:
Node.js
Express.js
PostgreSQL
MongoDB
Jest
Angular.js
AWS

Languages

English
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