Charles Yokono - Full stack developer

Skills

• Django
• ether.js
• Ethereum
• Fast API
• Flutter
• Nest.js
• Next.js
• Nuxt.js
• React
• React Native
• RESTful API
• Shopify
• Solana
• Vue.js
• web3.js
• wordpress

Experience

One Trust

Full stack developer - 12/2021 - 12/2023

– Built a web application using React based on Next.js for the DNA Damage Response (DDR) Company. Built most of the backend using Node.js along with Express and also made a combination of SSR and SSG for both dynamic and static pages
– Developed custom Django applications with advanced user authentication and authorization systems. Integrated APIs and designed data models to optimize data retrieval and manipulation, improving system efficiency by 20%
– Used JIRA for bug tracking and used Git as a version control tool and Jenkins is used for the continuous integration of builds
– Collaborated closely with cross-functional teams, including developers, QA engineers, and product managers, to understand healthcare domain requirements and deliver robust solutions that meet the unique needs of the industry, such as HIPAA compliance and data security
– Collaborated with a team of developers to optimize a Golang application for performance, resulting in a 30% reduction in memory usage and a 20% increase in processing speed

Techlink Systems

Full stack developer - 12/2019-12/2021

– Monitoring performance gaps and identifying errors in user experience before they appear
– Led the transition of the application from an MVC view-based approach to a Single Page Application (SPA). Rewrote class-based components to functional components with hooks, enhancing code quality and performance
– Implemented the Context API for global storage and authored over 330 individual tests across 110 test suites to react 80% code coverage
– Spent 80% time for coding and 20% for mentoring juniors, reviewing their PRs, their code so that they can write readable and reasonable code
– Developed and maintained Golang backend systems, leveraging GraphQL and gRPC for scalable service communication. Improved data exchange efficiency and reduced network overhead, leading to a 30% increase in system performance

Terato Tech

Frontend developer - 12/2017-12/2019

– Designed and implemented custom themes for e-commerce websites using Shopify and WooCommerce
– Integrated various third-party plugins and payment gateways to ensure a seamless user experience
– Expert in HTML, CSS, JavaScript, with substantial experience in frontend frameworks such as React, Next.js, Angular, and Vue.js
– Led the development of front-end web applications using modern web technologies such as React, Vue.js, and Angular. Collaborated with designers and back-end developers to ensure seamless integration of front-end and back-end systems
– Developed and maintained responsive web designs, ensuring cross-browser compatibility and accessibility compliance. Improved 15 web applications' responsiveness, boosting mobile traffic by 20% and mobile conversions by 10%

Education

Computer Science

Trent University

04/2013/-04/2017

About me