Haifeng Mei
Verified Expert in Engineering
Full-stack Developer
Haifeng is a full-stack developer with half a decade of experience in building efficient and user-friendly applications in a variety of industries. He specializes in React and React Native for building dynamic and responsive user cross-platform applications that offer a seamless and consistent user interface on both mobile and web. Haifeng is also well-versed in .Net and NodeJs which enables him robust backend systems that integrate with a variety of databases.
Portfolio
Experience
Availability
Preferred Environment
React, React Native, .NET Core, JavaScript, TypeScript, Node.js
The most amazing...
...project I worked on allowed me to be a core member in revolutionizing the mortgage industry by offering remote end-to-end processes for mortgage closing
Work Experience
Front-end Mobile Developer
Blackbox Technologies LLC
- Added a customized animated splash screen for a React Native mobile application.
- Fixed bugs related to handling multimedia files, i.e., audio, video, and text, in React Native.
- Implemented new features to a social media React Native mobile app.
Full-stack Developer
Unqueue Distributors Ltd
- Developed and delivered the requested web payout feature to ensure clients could complete their banking processing promptly.
- Completed the requested web signup and referral feature to ensure efficient customer registration before a specified deadline.
- Delivered a mobile feature to manage the active status of the store to ensure clients and customers can maintain a clear line of communication.
- Assisted with developing the React Native driver app to facilitate the delivery of orders by registered drivers.
Senior Software Developer
Evolve Mortgage Services
- Developed an e-mortgage web application that allows lenders to securely store, track, and manage their mortgage packages and support the digital signing and notarization of borrower documents.
- Designed the e-mortgage application mockups, which were used as the main design for the end product.
- Met a very overloaded deadline by working overtime tirelessly to ensure the successful launch of the e-mortgage application and capture critical clients.
Full-stack Developer
Resonance Caribbean Ltd
- Developed a PWA that facilitates the billing and top-up of all major telecom providers in the country, with an active user base of 10,000.
- Designed the end product mockups for all new applications in the company.
- Served as the lead UX designer and developer for the company's main projects.
Software Developer
Infotech Caribbean Ltd.
- Contributed to developing an e-tender application that helps streamline the tendering process into a seamless digital platform.
- Designed end-product mockups for the e-tender application's major features.
- Ensured the e-tender product's successful completion and launch by quickly adapting and learning new technologies.
- Maintained the Chronic Disease Assistance Programme (CDAP) system, which provides citizens with free prescription drugs and other pharmaceutical items to combat chronic health conditions.
Experience
Front-end Development of a Top-up and Bills Payment PWA
https://portal.yoozit.today/Back-end Development of an E-mortgage Web Application
Unqueue - Web/Mobile eCommerce App
https://unqueue.shop/Pet-MD
https://main.dvqyo09fp54dv.amplifyapp.comSkills
Languages
Python, JavaScript, TypeScript, HTML, CSS, C#, SQL, PHP, C#.NET, ECMAScript (ES6), GraphQL, PHP 5, Java
Frameworks
.NET Core, React Native, MUI (Material UI), .NET, ASP.NET, JSON Web Tokens (JWT), Bootstrap, Redux, Next.js, Jest, Tailwind CSS, Ruby on Rails (RoR), Entity Framework Core, Kendo UI, Express.js, Android SDK, Selenium, Laravel, Nuxt.js
Libraries/APIs
React, Node.js, REST APIs, React Router, React Redux, Twilio API, Vue, JavaScript Charting, D3.js, Vue 2, MobX, Leaflet, OpenLayers, AWS Amplify, Google Maps, Web3.js
Tools
JSX, GitHub, Redux Thunk, Adobe Experience Design (XD), Photoshop CC, Confluence, Figma, Slack, Jira, Android Studio, Git, Prisma, Expo, Amazon Elastic Container Service (Amazon ECS), Amazon Simple Queue Service (SQS), Amazon CloudWatch
Paradigms
Scrum, HTML DOM, UX Design, Agile, Mobile Development, Microservices, UI Design, Continuous Deployment, Continuous Integration (CI), Continuous Development (CD), Test-driven Development (TDD), Unit Testing, Acceptance Testing, Agile Software Development, OLAP, Gang of Four (GOF) Design Patterns
Platforms
Mobile, Firebase, Android, Azure, AWS Lambda, Windows, Visual Studio Code (VS Code), Linux, Docker, iOS, Amazon Web Services (AWS), Google Cloud Platform (GCP), Kubernetes, Contentful, WordPress
Other
Web Development, Responsive Web Apps, Full-stack, Application State Management, User Experience (UX), Single-page Applications (SPA), WebSockets, Software, Apps, Architecture, User Interface (UI), MERN Stack, Front-end, Web & Mobile Applications, API Integration, Design, Responsive Design, Progressive Web Applications (PWA), eCommerce, Serverless, APIs, Back-end, Amazon RDS, Leadership, Industrial Internet of Things (IIoT), Mobile App Development, Integration Testing, Teams, Cloud Computing, Algorithms, Networking, Machine Learning, OAuth, Cloud, PWA, Gatsby, CI/CD Pipelines, Headless CMS, Headless Commerce, AWS Cloud Architecture, Data Visualization, WatermelonDB, Lambda Functions, Vue 3
Storage
Microsoft SQL Server, PostgreSQL, MongoDB, MySQL, Databases, NoSQL, Redis, Elasticsearch, Amazon S3 (AWS S3), Amazon DynamoDB
Education
Master's Degree in Computer Science
University of the West Indies - Saint Augustine, Trinidad and Tobago
Bachelor's Degree in Information Technology
University of the West Indies - Saint Augustine, Trinidad and Tobago