Patrick

From Brazil (UTC-3)

Full-stack Web Developer|Senior

Back-end Web Developer|Senior

Front-end Web Developer|Senior

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Skills and seniority verified on Oct 13, 2025

Patrick – Python, React, AWS

Patrick is a product-oriented Senior Full-Stack engineer with 6 years of professional experience and prior experience as a cofounder and tech lead of a startup. Proficient in Python/FastAPI, React/Next.js, React Native, and AWS (EC2, ECS, Fargate), he excels in system design and building scalable backend and frontend solutions. He demonstrates solid knowledge of AWS scalability, data pipelines, and fault-tolerant architectures, including presigned URLs, multipart uploads, batching, and sharding. He has a natural curiosity and passion to technologies as started to develop at his fourteen.

6 years of commercial experience in

Mobile apps

Web development

Software development

Main technologies

Python

6 years

React

6 years

AWS

4.5 years

Next.js

6 years

FastAPI

2 years

Additional skills

GCP

Node.js

Django

Django REST

Typescript

API

JavaScript

Elixir

LLM

AWS Lambda

Java

PostgreSQL

React Native

SQL

Docker Compose

Docker

Material UI

SASS

Google Maps API

OpenAI API

OpenAPI

AWS CloudFormation

Cloud Computing

Machine learning

OpenAI

GitHub

Supabase

CI/CD

Vector Databases

Git

Express.js

Kafka

BigQuery

GitHub Actions

Kubernetes

Amazon ECS

Amazon S3

LangChain

Direct hire

Possible

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Experience Highlights

Senior Software Engineer

Feb 2025 - Jun 20254 months

Project Overview

Official advertising platform, enabling businesses to create targeted paid promotions based on subreddit interests, keywords, or location.

Responsibilities:

Managed the full stack for revenue-critical ads tooling, maintaining a large Python monolith while developing new Go microservices and React + TypeScript UIs;
Delivered advertiser-facing features end-to-end, including schema design, SQL/NoSQL queries, and front-end UX, serving hundreds of thousands of self-serve customers monthly;
Modernized legacy code by replacing brittle modules with test-backed Go services, improving observability and automating CI to reduce on-call incidents and deployment times.

Project Tech stack:

Python

JavaScript

Typescript

Golang

Golang REST API

Node.js

Docker

Docker Compose

SQL

MongoDB

React

PostgreSQL

Redis

Kubernetes

GitHub Actions

BigQuery

Co-Founder & Tech Lead

Aug 2023 - May 20251 year 9 months

Project Overview

Urban ride-sharing app that connects city commuters, ensures secure transactions with 3D facial biometrics, and promotes efficient, sustainable transportation.

Responsibilities:

Co-founded and contributed to building the startup from the ground up;
Designed and implemented key features of the rideshare platform using AWS ECS, Node.js, and FastAPI;
Collaborated closely with angel investors and mentors.

Key Achievement: Raised R$300k in funding and secured over USD 50k in tooling through startup programs like AWS Startups.

Project Tech stack:

React Native

React

LLM

Node.js

Python

FastAPI

AWS

SQL

PostgreSQL

Docker

Docker Compose

Senior Full Stack Engineer

Aug 2024 - Jan 20255 months

Project Overview

AI-driven shopping assistant platform

Responsibilities:

Developed AI-driven shopping experiences and internal dashboards;
Integrated Next.js, TypeScript, React, and AWS within a serverless framework;
Built front-end features and integrated back-end ML pipelines;
Designed and implemented scalable solutions for client projects;
Collaborated closely with a cross-functional team on AI-focused initiatives.

Project Tech stack:

LLM

Node.js

React

Next.js

Python

Redis

PostgreSQL

Docker

Docker Compose

SQL

MongoDB

LangChain

Strong Mid-Level Full Stack Software Engineer

Dec 2022 - Aug 20241 year 7 months

Project Overview

Played a key role at a global outsourcing company in implementing a modern HR system for a major client in Denver, CO.

Responsibilities:

Led the development of brand-new services, ensuring scalability and performance;
Designed and implemented new features aligned with business requirements;
Resolved complex bugs and technical issues to maintain system reliability
Architected and refined system architecture;
Created comprehensive documentation for an organization-wide audience.

Key Achievement: Achieved two hackathon wins and received a certificate of recognition from the client’s CTO.

Project Tech stack:

LLM

React

Java

Elixir

Node.js

AWS

AWS Lambda

Typescript

SQL

PostgreSQL

MongoDB

Docker

Docker Compose

LangChain

Keep in mind, the experience summary might exclude non-relevant projects

Languages

Portuguese

Advanced

Spanish

Pre-intermediate

English

Advanced

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