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HI! MY NAME IS
Juan Sebastian
Full stack Developer
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Juan Sebastian
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PHP
Laravel
React
.net
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MY skills
MY LIST OF
PROFESSIONAL
SKILLS
This profile shows a real candidate's background with anonymized personal information while preserving their actual technical skills and experience.
7
YEARS
OF EXPERIENCE
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LIVES IN
Colombia
ENGLISH
Intermediate
B2
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SUMMARY
ABOUT ME

Full-Stack Engineer with 6 years of experience using PHP (Laravel), Go (Gin), Java (Spring), JavaScript, and TypeScript (Express, React Hooks)

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OTHER
SKILLS

Programming Languages: Advanced: PHP, Javascript; Intermediate: Java, Golang; Basic: C#, Typescript Frameworks Tools: Advanced: Laravel, Express; Intermediate: React, Spring, Gin; Basic: .NET Core Databases: Advanced: PostgreSQL, MySQL; Intermediate: MongoDB; Basic: Redis

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MY STORY
professional
experience

Software Engineer | May 2021 - October 2022

Led the development and launch of the «Automation» initiative in two warehouses in Mexico and Brazil in 11/2021.

Led the development and launch of the «Non-Totable» initiative in a new warehouse in Brazil in 07/2022.

Tech Stack: Java/Spring, Go, Docker, Jenkins, AWS

Backend Leader | May 2018 -September 2018

● Successfully led two developers and a blockchain initiative for gaming bet and wallet management.

● Designed and implemented API to access all wallets and transactions layer for the Ethereum blockchain.● Led the design of complex SQL queries for logistics apps offered to companies like Domesa.● Designed a compliance program between blockchain and money management over Brinks standards.

Tech Stack: Javascript/Node, PHP/Phalcon, Solidity, PostgreSQL, MongoDB

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Freelance

Software Developer & Tech Consultant — January 2023 - Present

I built a microservice to validate large data files (~100K regs), complex rules and email integration. Performance: ~(10K regs/sec). Architecture: Ports & Adapters. Agile: SCRUM Tech Stack: Node, JavaScript, MongoDB, PostgreSQL, EC2 ● As a consultant, I designed a microservice system to automate a complete business line for a consulting firm

Tech Stack: Node, TypeScript, MongoDB, PostgreSQL, EC2, Apache Kafka, React

Development and Technology Leader | October 2018 - April 2021  

Improved by 25% development times by designing software development guidelines.  

I made a new frontend and backend of the leading software product offered to insurers for their business analysis.

Improved data access by more than 35% by migrating the main company’s databases to PostgreSQL and improving queries

Improved maintainability, availability, and performance by migrating the tech stack to microservices.

Successfully led a small tech team and all the company's tech initiatives.

Tech Stack: Javascript/Node/React, HTML/CSS, PHP/Laravel, C#/.NET, PostgreSQL, MySQL, Docker

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EDUCATION
ACADEMIC
record

Completed 54 credits towards a Technician’s Degree in IT Development

2014-2015

LATEST CERTIFICATIONS

HTTP API with Go using Hexagonal Architecture – CodelyTV. May 2022.

Go: OOP and Concurrence – Platzi. May 2022.

Introduction to Technical Writing and Code Documentation – Platzi. May 2022.

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