Renato L.

Front-end UX Engineer

Software development consultant - independent
11/1/2022 - Present

Specialized in JavaScript development, consistently delivering clean and robust code for high-quality application development. Developed expertise in structuring React and Angular projects, optimizing data flow, and creating visually captivating, user-friendly interfaces. Ensured alignment of front-end and back-end practices using Node.js with common coding principles. Leveraged advanced build tools and comprehensive testing to guarantee code reliability and optimal performance. Maintained a commitment to staying updated with the latest technologies, consistently delivering cutting-edge solutions.

Fullstack Developer
5/1/2022 - 7/1/2022

Collaborated on the development and enhancement of a large-scale restaurant app built on the Ionic framework, focusing on creating animation code using Lottie and developing new features. Contributed to the implementation of a design systems approach and supported a Node.js API. Refined technical skills in Angular and the Ionic framework, and gained experience in cross-cultural collaboration and the exchange of diverse perspectives and practices.

Sr. Javascript Engineer
4/1/2021 - 11/1/2021

As a JavaScript engineer in an online gaming platform, collaborated with international teams to understand clients' requirements and develop features. Created a private React UI library, established coding standards, and designed a comprehensive design system. Developed mocked Node.js APIs and wrote E2E testing code while mentoring a Jr. developer. Technologies utilized included React, Redux, Styled Components, Node.js with Express, Context API, Jest, and Cypress.

Front-End Developer
1/1/2020 - 3/1/2021

Led the initiation of a front-end project, defining and implementing essential components including the selection of frameworks, libraries, tools, best practices, naming conventions, and coding style guides. Implemented interface patterns and developed numerous React components emphasizing ease of use, accompanied by comprehensive documentation and unit tests. Utilized technologies such as React, Typescript, Axios, Styled Components, Jest, Material UI, ESLint with Airbnb plugin, Sass, Flexbox, and CSS grid.

In a subsequent role, focused on revamping, fixing, and integrating best practices into an existing application. Provided guidance and support to other developers to ensure high-quality front-end solutions. This involved leveraging expertise in React, Typescript, and associated toolsets to enhance application performance and maintainability.

Front-End Developer
2/1/2018 - 9/1/2019

Managed the front-end overhaul of a vital product with a focus on enhancing reliability engineering. Responsibilities included developing software from scratch with scalability in mind, crafting reusable code components, and defining and implementing logic to boost performance. Emphasized implementing best practices. Contributed significantly to a second Angular 2+ project by developing various UI components and validating and implementing UX improvements. Played a crucial role in the creation of a time and skill management app aimed at optimizing maintenance productivity.

Front-End Developer
5/1/2017 - 1/1/2018

Developed proficiency in JavaScript frameworks including Angular and React, focusing on creating seamless user experiences. Leveraged HTML5, CSS3, and SASS to recreate interface elements and logic for improved user interaction. Enhanced the performance of financial applications using advanced front-end optimization techniques and ensured high-quality standards through diligent bug detection and resolution. Engaged in continuous performance enhancement while adding new pages and optimizing front-end data models. Utilized Git for version control, ensuring collaborative code maintenance and effective project tracking.

Front-end Developer
11/1/2016 - 5/1/2017

Developed expertise in analyzing layouts, sending feedback to stakeholders, and documenting front-end processes and solutions. Delivered code interfaces and front-end code for Oracle's Web Center Portal and Web Center Sites (CMS tools), ensuring compatibility and optimization. Practiced agile methodologies, specifically scrum, throughout the development processes.

Jr. Full Stack Developer
7/1/2015 - 4/1/2016

Specialized in programming interface interactions, testing, and implementing new PHP themes and functionalities within WordPress. Designed web interface elements and engaged in front-end programming from PSD to HTML. Managed modification and implementation of modules and scripts, along with comprehensive WordPress/PHP development. Utilized a range of technologies including HTML5, CSS, Javascript, JQuery, Bootstrap, PHP, and WordPress for various application development tasks.

Freelancer – Designer & Developer
9/1/2013 - 10/1/2016

Provided web development services with a focus on establishing web presence through custom websites. Enhanced proficiency in personal marketing, UI/UX design, and front-end development. Dedicated time to strengthening programming skills and staying updated with the latest tools and concepts in the industry. Conducted research and development in game development, applying findings to related experiments. Committed to continuous learning to deliver cutting-edge web solutions tailored to specific client criteria.

Computer Science Engineering at Paulista University - UNIP
2005 - 2013

Data Processing – Technician at University of the Paraíba Valley - UNIVAP
2002 - 2004

BUSINESS IN DIGITAL MEDIA at Anhembi Morumbi University (Laureate Distance Education)
2019 - 2021

DIGITAL GAMES PROGRAMMING – Technician at ETEP Colleges
2014 - 2015