Leonardo Kameya
Senior Software Engineer
Building high-quality software with modern technologies
Personal Projects
A selection of my recent work
Education
Bachelor's Degree in Computer System Analysis (Análise de Sistemas de Computação)
Universidade Federal de Mato Grosso do Sul
2007 - 2011
Final Paper (2011)
Implementing digital signatures using Hash Functions
Implementing MD5, SHA1, SHA256, and digital signatures using Merkle Trees.
Experience
Software Engineer / Line Manager
CI&T • Campinas, São Paulo, Brazil - Remote
Dec 2021 - Present
- • Serve as Full Stack Developer and Frontend Tech Lead, delivering high-quality solutions for enterprise clients across Brazil and the United States
- • Manage and guide developers in their career development, providing mentorship, career path planning, and professional growth opportunities
- • Mentor development teams, facilitate professional growth, and conduct performance evaluations to drive team excellence
- • Lead frontend architecture initiatives, designing and implementing scalable e-commerce systems and vehicle sales management platforms for a major automotive corporation
- • Architect and develop an online education platform leveraging modern web technologies and best practices
JavaScriptReact.jsNext.jsTypeScriptNode.jsNestJSGraphQLApollo GraphQLPostgreSQLMySQLSQLiteRedisAWSGCPAdobe Enterprise ManagerMicrofrontendGenAI
Frontend Developer
UnicornPowered • Quebec, Canada - Remote
Aug 2021 - Oct 2021
- • Developed React-based frontend for an interactive application focused on Canadian voter lifestyle data visualization
- • Delivered dynamic data presentations through engaging, responsive visual interfaces
- • Built reusable UI components, integrated external APIs, and implemented best practices for performance, accessibility, and user experience
React.jsStorybook
Frontend Engineer
Alooba • Sydney, Australia - Remote
Jul 2020 - Apr 2021
- • Designed landing pages and React components using Figma, ensuring pixel-perfect implementation
- • Developed a production-ready landing page using GatsbyJS with React frontend and Strapi headless CMS backend
- • Maintained legacy PHP systems while contributing to platform migration to modern architecture using React/Redux, microservices, and AWS infrastructure
React.jsGatsbyJSRedux.jsStrapi.jsAWSFigmaCMS
Software Developer
Sanesul • Campo Grande, Brazil
Jun 2014 - Nov 2019
- • Developed and maintained a custom C# library to standardize project implementations and enhance team productivity
- • Led migration initiatives from jQuery-based projects to modern frontend frameworks (React and Vue), reducing complexity and improving application performance
- • Implemented continuous integration and deployment pipelines in Azure DevOps, reducing testing and deployment time by over 50%
- • Architected and developed multiple enterprise applications using .NET Core, Entity Framework, SQL Server, and Oracle
React.jsReact NativeC#.NET Framework.NET CoreEntity FrameworkSQL ServerOraclePL/SQLGitAzure DevOps
System Analyst
AZ Tecnologia em Gestão • Campo Grande, Brazil
Sep 2013 - Jun 2014
- • Collaborated with cross-functional teams to gather requirements and analyze legacy system migration from Natural to .NET platform
- • Conducted stakeholder interviews with State Attorney's Office representatives to collect and validate business requirements
- • Documented comprehensive use cases and designed database schema for the new system architecture
MainframeLegacy SystemsLegacy ModernizationADABASSQL ServerTFS
Professor
Integrated High School of Science and Technology • Campo Grande, Brazil
Apr 2013 - Aug 2013
- • Served as temporary instructor for high school and undergraduate programs at IFMS (Federal Institute of Mato Grosso do Sul), delivering technology-focused curriculum
- • Taught high school courses: Databases, Introduction to Computing, and Software Engineering
- • Delivered undergraduate courses: Web Development I (HTML/CSS/JavaScript) and E-commerce (PHP/Magento)
TeachingDatabasesHTMLCSSJavaScriptPHPMagento
Full Stack Developer
Agence Consultoria • Campo Grande, Brazil
Jul 2012 - Feb 2013
- • Analyzed requirements and developed full-stack solutions for academic systems and content management platforms
C#ASP.NET.NET FrameworkJavaScriptGit
Web Developer
Itel Informática • Campo Grande, Brazil
Apr 2010 - Apr 2012
- • Served as IT technician, providing technical support for electronic equipment maintenance and barcode reader programming
- • Contributed to document digitization and archival projects for public-sector institutions
VB.NETASPASP.NET MVCSQL Server