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Daniel – Typescript, Python, React, experts in Lemon.io

Daniel

From Brazil (UTC-3)

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Full-stack Web DeveloperSenior
20 years of commercial experience
Management
Real estate
Rental
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Daniel – Typescript, Python, React

Meet Daniel - a Senior Full-stack Engineer with over 15 years of commercial experience, contributing to businesses of various sizes across domains like real estate, management systems, cryptocurrency marketplaces, digital insurances, among others. The candidate is also an author of a notable, famous open-source frontend framework: https://github.com/danielgatis/rembg written in Python! Having been utilizing Python and React as his main stack, Daniel was observed during the hard skills interview to have a solid grasp on main design principles and data structures, making him fit for any team! During the interviewing stages, Daniel was described as an 'excellent solution designer' - so no time to waste, let's get Daniel onbaord your project and get it elevated to a whole new level!

Main technologies
Typescript
7 years
Python
15 years
React
10 years
Django
15 years
AWS
7 years
Additional skills
Ruby
Golang
PostgreSQL
MySQL
Ruby on Rails
Machine learning
Flask
Spring Boot
Java
Golang REST API
Apache Airflow
Ready to start
ASAP
Direct hire
Potentially possible
Ready to get matched with vetted developers fast?
Let’s get started today!

Experience Highlights

Senior Software Engineer
Oct 2022 - Dec 20242 years 2 months
Project Overview

A business management app built for home service professionals, offering tools for scheduling, invoicing, payments, customer management, and work order tracking. It streamlines operations by automating tasks, enhancing customer communication, and integrating with marketing tools. Ideal for industries like plumbing, HVAC, electrical, and cleaning services, it helps businesses grow efficiently.

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Responsibilities:

Daniel was primarily responsible for the following:

  • implemented and developed improvements for both backend and frontend of the platform;
  • focused on backend development using Ruby-on-Rails and frontend with ReactJS;
  • contributed to platform updates and optimizations, improving user experience;
  • ensured smooth operation of a platform serving thousands of American users;
  • drove key technical decisions and enhanced system performance across the stack;
  • integrated Python Flask APIs with machine learning models to enhance platform functionality.
Project Tech stack:
Ruby on Rails
Python
Ruby
Flask
Machine learning
PostgreSQL
MySQL
React
JavaScript
Typescript
Software Engineering Specialist
Feb 2022 - Oct 20228 months
Project Overview

A Brazilian real estate platform that simplified property rentals and sales by connecting owners with tenants or buyers. It offered a digital ecosystem for managing contracts, payments, and transactions, streamlining the leasing process for a seamless experience.

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Responsibilities:

Daniels' main scope of responsibilities covered the following contributions:

  • developed and maintained high-performance software applications using Java, Python and React, ensuring reliability and scalability;
  • contributed to architecture design and optimization of backend systems using Java/Spring Cloud and Postgres;
  • led the implementation of agile development practices, driving on-time delivery of quality software solutions;
  • mentored and trained junior developers, fostering skill development and team collaboration;
  • enhanced front-end user experiences through HTML, CSS, JavaScript, and React;
  • actively participated in code reviews to maintain coding standards and best practices within the team.
Project Tech stack:
Java
JavaScript
Spring Boot
React
Typescript
Python
Flask
Django
Staff Software Engineer
May 2020 - Feb 20221 year 9 months
Project Overview

One of Brazil’s largest cryptocurrency exchanges, which provided a secure and user-friendly platform for buying, selling, and trading digital assets like Bitcoin and Ethereum. It offered market analysis, wallet management, and investment tools, making crypto trading accessible to both beginners and experienced investors. With a focus on security and innovation, the platform continued to drive the adoption of digital assets in the region.

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Responsibilities:

Among the main responsibilities, Daniel was carrying out the following:

  • led a team of 5 developers in the design and development of a digital bank platform using a microservices architecture from scratch;
  • developed and maintained high-performance software applications using Golang, Java, and Python, ensuring reliability and scalability;
  • implemented agile development practices to drive on-time delivery of high-quality software solutions;
  • mentored and trained junior developers, fostering skill development and team collaboration;
  • contributed to system architecture, optimizing both backend and frontend components;
  • actively participated in code reviews, ensuring adherence to coding standards and best practices.
Project Tech stack:
Java
Spring Boot
Python
Golang
Flask
Golang REST API
Senior Software Engineer
May 2018 - May 20202 years
Project Overview

A Brazilian digital insurance company offering fully online, customizable insurance products. It provided flexible coverage options for life, health, car, and home insurance, allowing customers to easily buy, manage, and modify plans through a user-friendly platform. By eliminating intermediaries, it streamlined the insurance process, ensuring direct access to policies and support through digital channels. With a focus on innovation, it continuously enhanced its services to meet the evolving needs of modern consumers.

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Responsibilities:

Daniel's range of contributions included, but was not limited to:

  • developed and maintained software applications using Ruby on Rails, ensuring high performance and reliability;
  • implemented agile development methodologies to ensure the timely delivery of high-quality software;
  • mentored and trained junior developers to enhance their skills and knowledge;
  • conducted code reviews and implemented best practices to maintain high code quality;
  • actively participated in designing and developing the company's core product.
Project Tech stack:
Ruby on Rails
Ruby
Python
Flask
Apache Airflow
React
JavaScript

Education

2005
Computer Science
Bachelor

Languages

English
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