Jhone D.

Jhone D.

Feira de Santana, Brazil
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About Me

Jhone is a Full-stack Developer specializing in web development, with 7+ years of experience designing, building, enhancing, and implementing solutions on high-impact projects that involve databases, back-end services, and UI development. He creates robust technical designs and strategies to develop new components that meet requirements and business objectives, adopting best practices to deliver quality and scalable solutions. On the back end, Jhone works with PHP, Node.js, Java, Laravel, and Express, developing and optimizing systems that process millions of monthly requests, ensuring high performance and reliability. On the front end, he uses Vue.js, jQuery, and React.js to create intuitive and responsive interfaces. He also works with databases, having recently led a team to migrate the use of MySQL to Timescale, reducing costs by around 70%. Jhone is passionate about adding value to companies and people through innovative and scalable tech solutions, and his work has helped businesses increase efficiency by up to 40% and significantly reduce operating costs.

Frontend

Backend

Database

DevOps

Other

Work history

UpStack
UpStack
Full-stack Developer
2023 - Present (2 years)
Remote
  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participating in scrums consisting of cross-functional teams, both software and hardware.

  • Ensuring that features are being delivered efficiently and on time.

Huggy
Huggy
Full-stack Developer
2018 - Present (7 years)
Feira de Santana, Brazil
  • Designing, developing, implementing, and maintaining different modules to enhance platform analytics for Huggy.

  • Working on the data formation layer, business logic, and graphical interface to deliver a quality front end on the project.

  • Delivered new AWS-based microservices and contributed solutions for platform improvements.

  • Migrated the analytical module’s MySQL database to TimescaleDB, improving performance and scalability and reducing cost by over 65% in usage and storage.

  • Led the front-end migration to Vue 3, ensuring compatibility and maintainability.

  • Designed and implemented an asynchronous export service using AWS S3, SQS, and Lambda, enabling the export of ~1 million chats per execution—a ~7x increase from the previous 150K limit.

  • Contributed to and maintained the open-source date/time picker library with customizable options, exceeding 13,000 downloads.

  • Implemented analytical dashboards, data visualization tools, charts, and unit tests.

  • Transformed platform modules into independent projects with dedicated CI/CD workflows.

Universidade Estadual de Feira de Santana (UEFS)
Universidade Estadual de Feira de Santana (UEFS)
Software Engineer Intern
2016 - 2017 (1 year)
Feira de Santana, Brazil
  • Built and implemented a platform that manages information on academic scholarships within UEFS.

  • Provided solutions to maintain the platform, refactoring code and fixing bugs.

  • Determined and recommend the best solutions based on technical requirements, UEFS objectives, and resource constraints.

PHPYii2JavaScriptSQL ServerGithubGitHTMLCSSSQLMySQLObject-oriented Programming (OOP) Refactoring Bug Fixes Web Development

Showcase

Full-stack Developer - Asynchronous Data Export Project
Full-stack Developer - Asynchronous Data Export Project
  • Worked in collaboration with a DevOps team on a microservices architecture using Lambda, SQS, and S3 for improved asynchronous data export

  • Created a solution to optimize access to a MySQL database, processing a high volume of web request data within 60 seconds

  • The project showcased strong full-stack development skills in a DevOps environment to enhance data export efficiency

Full-stack Developer - The Books Challenge
Full-stack Developer - The Books Challenge
  • Completed a personal project titled 'The Books Challenge' to understand and experiment with listing, removing, and creating book entities with specific search criteria, duplicity, and error validation.

  • Constructed the application from scratch, implementing API back-end structure, database, unit tests, and front-end.

  • Focused on learning and exploring various aspects of full-stack development.

Full-stack Developer - Huggy Date Picker
Full-stack Developer - Huggy Date Picker
  • Forked and utilized an open-source project for implementing a Vue.js-based date picker solution in Huggy

  • Worked with the fork to develop, implement, and maintain UI/UX solutions for the date picker

  • Deployed the date picker as an open-source solution

Education

Micro-Certification in Web Development (Sep 2024), Front-end Web Development (Feb 2025), and Back-end Development (Mar 2025)
Micro-Certification in Web Development (Sep 2024), Front-end Web Development (Feb 2025), and Back-end Development (Mar 2025)
Rocketseat - Brazil
2024 - 2025 (1 year)
Bachelor's Degree, Computer Engineering
Bachelor's Degree, Computer Engineering
Universidade Estadual de Feira de Santana - Brazil
2012 - 2021 (9 years)