Kevin is available for hire
Hire KevinKevin Toan Ma
Verified Expert in Engineering
Front-end Developer
Location
Toronto, ON, Canada
Toptal Member Since
November 16, 2020
Kevin is a seasoned software developer with a passion for staying ahead of the curve in the constantly evolving tech industry. He excels in utilizing modern tech stacks such as React, Express, and Node.js to deliver premium-suite web applications. Kevin's expertise has been critical in creating dynamic, user-friendly experiences for clients, and he has a proven track record of delivering high-quality code optimized for performance.
Portfolio
Bold Metrics Inc.
React, Next.js, Node.js, TensorFlow, Python, REST, React Redux, Vercel, Babel...
CAI International | Mitsubishi
React, JavaScript, PHP, SQL, GraphQL, Redux, APIs, React Query, Web UI...
Priceline
JavaScript, React, APIs, Apollo, Redux, Git, HTML, Web Development, REST APIs...
Experience
Availability
Full-time
Preferred Environment
React, JavaScript, Visual Studio Code (VS Code), Atom, MacOS, Python 3, Git
The most amazing...
...privilege I've had was working with distinguished engineers, creating beautiful front-facing, end-user applications for enterprise and startup companies.
Work Experience
Full-stack Developer
2023 - 2023
Bold Metrics Inc.
- Acted as the lead developer tasked with architecting and developing multiple applications, including a 3D photo scanning application, user feedback survey, and analytics dashboard.
- Improved user engagement post-purchase significantly, capturing valuable feedback that informed future product and service enhancements. The discount code feature incentivized users to engage with the survey.
- Oversaw the development process via code reviews and architecture direction for the analytics dashboard for internal use and customers that subscribed to their AI platform.
Technologies: React, Next.js, Node.js, TensorFlow, Python, REST, React Redux, Vercel, Babel, Web App Development, Axios, React Query
Senior React Developer
2022 - 2023
CAI International | Mitsubishi
- Remodeled existing databases and service endpoints to a new tech stack involving React, JavaScript, SQL, and GraphQL.
- Created a modern custom CMS application for 100,000+ units, invoices, and administrative tools.
- Managed and developed codebases that contained hundreds of screens and dynamic state-handling processes.
- Performed rigorous QA testing, weekly sprints, and constant revisions to the version base in the pipeline.
Technologies: React, JavaScript, PHP, SQL, GraphQL, Redux, APIs, React Query, Web UI, PostgreSQL, Amazon Web Services (AWS), Front-end, Radix UI, Pixel Perfect, Unit Testing, Vanilla JS, HTML5, CSS3, Front-end Development, Cypress, REST, Tailwind CSS, React Redux, Babel, Web App Development, Axios, Material UI
Front-end Developer
2021 - 2022
Priceline
- Worked as a front-end React engineer and was tasked with writing production-ready code with responsive and reusable front-end components.
- Collaborated with other senior-level engineers with code reviews and helped with QA and debugging code when needed.
- Integrated a modern Apollo tech stack with GraphQL and caching data for pre-existing and novel state management.
- Optimized components for maximum performance across various web-capable devices and browsers, with A/B testing.
- Utilized Jira and sprint techniques to optimize workflow, including Jest/Enzyme testing and legacy code updates.
Technologies: JavaScript, React, APIs, Apollo, Redux, Git, HTML, Web Development, REST APIs, GraphQL, Jest, Figma, Web UI, Architecture, Amazon Web Services (AWS), TypeScript, Front-end, Pixel Perfect, Unit Testing, Vanilla JS, HTML5, CSS3, Front-end Development, Cypress, REST, React Redux, Babel, Web App Development, Axios, Material UI
Front-end Developer
2020 - 2021
Predikat
- Created dashboard UI systems for controlling and reviewing statistical analysis of site performances via AI machine learning.
- Detected disruption issues such as slow loading times and automatically alerted users of any necessary troubleshooting so that they may immediately address issues.
- Created charts and graphical data to easily demonstrate the traffic patterns of the client's web apps and alert the client when the web traffic rises, successfully increasing customer satisfaction and the smoothness of the website.
Technologies: Node.js, Express.js, React, Bootstrap, JavaScript, Git, HTML, Web Development, REST APIs, Web UI, Web UX, Three.js, Architecture, Front-end, Pixel Perfect, Unit Testing, Vanilla JS, CSS3, Front-end Development, REST, React Redux, Babel, Web App Development, Axios, Material UI
Front-end Developer
2018 - 2020
Online Freelancer Agency
- Connected remotely with multiple businesses and companies to implement software solutions, mostly web apps that are unique to their specific business needs.
- Performed as the company’s leading technology expert on topics such as performance-based solutions, friendly UI rendering, natural language processing, and innovative data pulling algorithms; proactively recommended technology-business decisions.
- Designed and collaborated with multiple front- and back-end engineers to create and improve websites, increasing site traffic and reducing server load costs via daily maintenance of code, debugging issues, and fulfilling specific client requests.
Technologies: Django, Node.js, Express.js, React, JavaScript, Git, HTML, Web Development, REST APIs, Next.js, Python, Web UI, PostgreSQL, Front-end, Full-stack, Pixel Perfect, Vanilla JS, CSS3, Front-end Development, React Redux, Java, Cloud Firestore, MongoDB, Babel, Web App Development, Axios, Material UI
Junior Full-stack Developer
2018 - 2019
Teamly
- Created a platform for one of the largest gaming companies in the world to provide accurate matchmaking data and statistical analysis through algorithmic learning.
- Integrated multifaceted authentication systems and API endpoints for seamless user experience and data collection.
- Rendered and maintained a user base of over 100,000 unique IDs and allowed for on-demand stat tracking and updates.
Technologies: TensorFlow, Python 3, JavaScript, Redux-Saga, Redux, Express.js, Node.js, React, Firebase, Git, HTML, Web Development, REST APIs, TypeScript, Figma, Python, Web UI, Front-end, Full-stack, Pixel Perfect, Vanilla JS, CSS3, Front-end Development, React Redux, Java, Cloud Firestore, MongoDB, Babel, Web App Development, Axios, Material UI
Front-end Developer
2017 - 2018
Sora Web Solutions
- Developed the front end which included website integration and production quality UI for multiple clients for their unique specific needs.
- Investigated and implemented performance solutions and implemented the most modern page customization options.
- Built business-facing websites ranging from online stores to barber-shop services.
Technologies: Redux, React, Express.js, Node.js, JavaScript, Firebase, Git, HTML, Web Development, REST APIs, Next.js, Jest, Python, Web UI, Web UX, PostgreSQL, Front-end, Full-stack, Pixel Perfect, Vanilla JS, Front-end Development, Java, Cloud Firestore, MongoDB, Babel, Web App Development, Axios, Material UI
Experience
Marketplace for Books
https://pangobooks.com/Role
Front-end Developer
Hooked up the back-end API and created client-sided operations for users to buy and sell books on the marketplace. I was tasked with creating custom hooks for customizable features for the website.
Next.js + TypeScript application for SEO rendering.
Front-end Developer
Hooked up the back-end API and created client-sided operations for users to buy and sell books on the marketplace. I was tasked with creating custom hooks for customizable features for the website.
Next.js + TypeScript application for SEO rendering.
Predikat AIOps Suite
https://www.predikat.co/Predikat is designed for sleekness as an analytic tool for optimizing website performance and understanding traffic flow, server loads, and user interactions on the platform.
Powered by React, an infrastructure stack capable of analyzing millions of users.
Powered by React, an infrastructure stack capable of analyzing millions of users.
Volo Cards
An innovative startup that's transforming the credit card travel marketplace by automating and integrating multiple cards to optimize the maximum amount of points for travel.
Roles: Lead Engineer, Architect of the Front-end Application
Technologies: React, Redux, Redux-saga, Material-UI, Figma
Roles: Lead Engineer, Architect of the Front-end Application
Technologies: React, Redux, Redux-saga, Material-UI, Figma
Skills
Languages
JavaScript, HTML, CSS, Python, HTML5, CSS3, Python 3, GraphQL, TypeScript, Java, ES7, PHP, SQL
Frameworks
Redux, Express.js, Material UI, Next.js, Tailwind CSS, Vanilla JS, Cypress, Jest, Django, Bootstrap, React Native
Libraries/APIs
React, Redux-Saga, Node.js, REST APIs, React Redux, Three.js, TensorFlow
Tools
Git, Figma, Webpack, Babel, JSS, Atom
Paradigms
REST, Unit Testing
Platforms
Vercel, Firebase, MacOS, Visual Studio Code (VS Code), Google Cloud Platform (GCP), Amazon Web Services (AWS)
Other
Research, Web App Development, Web Development, Development, React Query, Web UI, Front-end, Full-stack, Pixel Perfect, Front-end Development, Axios, APIs, Web UX, Architecture, Radix UI, iTerm2, API Hooking, Apollo, Technology
Storage
Cloud Firestore, MongoDB, PostgreSQL
Education
2013 - 2018
Bachelor's Degree in Neuroscience and Human Biology
University of Toronto - Toronto, Ontario, Canada
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