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

Edgar

From Brazil (UTC-3)flag

Full-stack Web Developer|Strong senior
Front-end Web Developer|Senior
Back-end Web Developer|Strong senior

Edgar – AWS, Typescript, React

Edgar is a Strong Senior Full-Stack Developer with 20 years of experience in software development for startups and global companies. Skilled in Node.js, Next.js, React, and TypeScript, he has deep expertise in event-driven architectures and building scalable backend systems. He also has extensive AWS experience, managing cloud infrastructure and distributed systems. With 4 years as a Computer Engineering professor, he mentored 300+ students and actively supports team development, leveraging effective communication and collaboration.

22 years of commercial experience in
AI
Art and creativity
E-commerce
Gambling
Healthtech
Manufacturing
Media
Photography
Retail
Social impact
Social media
B2B
Marketplace
Collaboration tools
Mobile apps
Web development
Main technologies
AWS
11 years
Typescript
6 years
React
5 years
Node.js
11 years
Next.js
2 years
Additional skills
MySQL
MongoDB
Vercel
Supabase
React Native
Golang
AWS Lambda
Terraform
Tailwind CSS
SASS
Direct hire
Possible
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Experience Highlights

Senior Software Engineer
Apr 2023 - May 20252 years 1 month
Project Overview

A leading online eyewear retailer with a B2B department that provides eyewear solutions to companies across North America, including partners like Meta, Amazon, and US Vision.

Responsibilities:
  • Built mission-critical microservices and UIs from scratch for B2B e-commerce projects, including Meta Quest 3, Amazon Echo Frames, Eyebot, and US Vision;
  • Developed scalable, multi-tenant systems with TypeScript, PostgreSQL, Vue.js, GCP Pub/Sub, and FusionAuth;
  • Integrated third-party services like Magento, Algolia, and OneSignal to extend product capabilities;
  • Mentored teammates and promoted knowledge sharing through hands-on technical guidance;
  • Collaborated with globally distributed, multicultural teams to ensure timely and aligned deliveries.
Project Tech stack:
Node.js
Typescript
PostgreSQL
Vue.js
GCP
OneSignal
Magento
Algolia
Tailwind CSS
Monorepo
Principal Software Engineer
Oct 2017 - Apr 20235 years 5 months
Project Overview

AI-driven photo stock marketplace, focused on delivering high-quality content from creatives worldwide.

Responsibilities:
  • Led end-to-end development of the platform's ecosystem - infrastructure, backend, and frontend;
  • Managed a team of 6 engineers, providing technical mentorship and ensuring scalable, high-quality delivery;
  • Built core services with Node.js, TypeScript, GraphQL (Apollo), AWS SQS, RabbitMQ, Redis, and PostgreSQL;
  • Developed a content-aware search system and ML image processing tools using Python (CLIP), Go, and Elasticsearch;
  • Led the team in building the entire mobile app ecosystem, including high-performance microservices, a scalable fan-out activity feed, and optimized image processing flows;
  • Delivered modern, cross-platform frontends with React.js, React Native, and Shopify;
  • Played a pivotal role in business strategy and technical decision-making, aligning execution with long-term vision.
Project Tech stack:
Node.js
Typescript
React
AWS
ElasticSearch
Redis
Golang
PostgreSQL
Python
PHP
Symfony
GPT-3
Vector Databases
RabbitMQ
Microservices
Apollo GraphQL
AWS Lambda
Principal Software Engineer
Dec 2016 - Oct 201710 months
Project Overview

A distributed microservices engine that builds scalable backends for online gambling, supporting global casino integrations.

Responsibilities:
  • Designed and engineered the architecture of the entire engine ecosystem;
  • Single-handedly developed all of the 21 microservices;
  • Orchestrated the whole AWS deployment using Terraform;
  • Integrated multiple databases/storage, leveraging their strength on each microservice (MongoDB, PostgreSQL, Redis);
  • Integrated observability tools like New Relic into the critical microservices;
  • Created comprehensive documentation.
Project Tech stack:
Node.js
WebSocket
gRPC
RabbitMQ
Apollo GraphQL
Microservices
MongoDB
PostgreSQL
Redis
.NET Core
AWS
AWS Lambda
Terraform
Amazon ECS
CI
CD
Senior Fullstack Engineer
Dec 2016 - Oct 201710 months
Project Overview

A project that leverages social media and crowdsourcing to empower people with life-saving CPR skills and quick access to AED (defibrillator) locations.

Responsibilities:
  • Designed the system architecture;
  • Implemented the backend using Node.js, Express, and MongoDB;
  • Designed the UI/UX for the mobile application;
  • Developed the mobile app using React Native;
  • Built a web form using React.js;
  • Published and maintained the mobile app on the Apple App Store and Google Play Store.
Project Tech stack:
Node.js
Express.js
MongoDB
React Native
React

Education

2026
Artificial Intelligence - Neuroscience and Behaviour
PhD
2016
Computer Science
MSc
2010
Computer Information Systems
Bachelor

Languages

Portuguese
Advanced
English
Advanced

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