Hi, I amGuilherme Xavier

Software Engineer & Full-Stack Developer

Specialized in Elixir Phoenix GraphQL React

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My Resume

Education

June 2018 - Currently

Systems Development and Analysis Degree

Web and mobile development, Databases and Information Security are my strengths in the course.

Instituto Federal de Educação, Ciência e Tecnologia Baiano
December 2022 - February 2023

Advanced English

Completed an intensive program designed for students with a strong foundation in English. Developed advanced skills in reading, writing, speaking, and listening through analysis of complex texts and focused practice.

Prime Cursos

Experience

November 2024 - Present

Software Engineer

Working with functional programming to develop and improve business solutions.

  • Worked on Elixir/GraphQL API gateway serving thousands of daily requests
  • Maintained real-time messaging infrastructure using Phoenix/LiveView and OTP
  • Reduced processing latency through custom Oban schedulers and optimized Ecto queries
  • Implemented property-based testing achieving better coverage across mission-critical services
Elixir Phoenix GraphQL React.js
Podium
August 2021 - November 2024

Back-End Developer

Worked in the credit engine squad, designing and developing solutions to improve the loan application flow using the Elixir framework with Phoenix.

  • Designed and implemented credit scoring API solutions
  • Integrated with banking systems and financial services
  • Optimized database queries for performance and scalability
  • Collaborated in an agile environment with cross-functional teams
Elixir Phoenix Next.js React.js PostgreSQL
Money Money Invest
December 2020 - July 2021

Full Stack Developer

Developed mobile and web applications focused on field service management and route optimization.

  • Built iTecnico: A React Native app that helps field technicians make adjustments in connection and customer registration
  • Developed Micksell: Mobile and Web platform for tracking routes and auditing approaches by external vendors in real time
  • Created RESTful APIs with Node.js for mobile application backends
  • Implemented process automation and third-party system integrations
React Native Node.js REST APIs JavaScript
Micks Brasil
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About me

First and foremost, I am passionate about technology and its transformative potential. My journey began with computational vision programming during college, and I've been captivated by software development ever since.

I'm currently specializing in functional programming with Elixir and the Phoenix Framework, along with modern frontend technologies like React.js. My expertise in building scalable backend systems is complemented by experience with GraphQL and PostgreSQL. As a programming enthusiast, I'm constantly seeking to expand my skills and embrace new technologies.

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My services

Backend Development

Scalable API development with Elixir/Phoenix and optimized database solutions. Specialized in GraphQL APIs, messaging systems, and high-performance server applications.

Elixir Phoenix GraphQL

Mobile Development

Creating beautiful, responsive applications for iOS and Android platforms using React Native. Focus on performance optimization and seamless user experience.

React Native JavaScript Mobile UX

Frontend Development

Modern web applications built with React.js and Next.js. Focused on creating responsive, accessible, and visually appealing user interfaces with optimal performance.

React.js Next.js Responsive Design

Get in touch with me

Interested in working together or have questions about my services? Send me a message!

Contact me

Contact info

  • Email contato@guixavier.com.br
  • AddressGuanambi - BA