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$30 USD / hora
Bandeira do(a) CHINA
qinhuai district, china
$30 USD / hora
No momento são 6:31 AM aqui
Entrou no Freelancer em outubro 21, 2022
0 Recomendações

Kevin J.

@KevinJ22

annual-level-three.svgverified.svg
5,0 (3 avaliações)
3,1
3,1
$30 USD / hora
Bandeira do(a) CHINA
qinhuai district, china
$30 USD / hora
100%
Trabalhos Concluídos
100%
Dentro do Orçamento
100%
No Prazo
50%
Taxa de Recontratação

Senior Full Stack Web & App Developer

Motivated Full Stack Web Developer with experience spearheading complex projects in the complex IT market. Skills including: JavaScript, HTML/HTML5, CSS/CSS3, SASS, React, NodeJS, NextJS, Redux, Python, Java, JQuery, ES6, MySQL, Firebase, MongoDB, Express, AJAX, REST API, Jest, AWS, and Bootstrap.
Freelancer Javascript Developers China

Contate Kevin J. para falar sobre o seu trabalho

Entre para falar sobre qualquer detalhe pelo chat

Itens de Portfólio

This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is the system for managing the wiring and ports in the building. When the line or port fails, it is convenient for the administrator to use the mobile phone to quickly obtain the line information such as station port, server or switch port.
My responsibility:
- Requirement analysis: output requirement prototype
- System design: determine the technology stack, determine the overall architecture, determine the data input and output models and specific template
Back-end: responsible for data template development
Front-end: responsible for homepage, floor map, room and related CRUD pages.
Building wiring management system
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
This is a digital content operation platform. Based on this platform, operators can promote and operate a variety of digital content such as RBT, games, e-books, music.
My responsibility:
- Requirement analysis: identifying functions and dividing functional modules
- System design: select the technology stack according to the requirements
- Front end: development landing page and home page
Digital contents operation platform
PowerIoT is a web based real- time system used for monitoring,  alarm of power and production environment in industrial enterprises. Also it includes data statistics, access control, online map, etc. It is especially designed for company or organization with high requirements for data confidentiality.
At this project, I am responsible for product design, participate in system design, and develop data acquisition module, alarm module and system activation module, including corresponding front-end and back-end.
PowerIoT system
PowerIoT is a web based real- time system used for monitoring,  alarm of power and production environment in industrial enterprises. Also it includes data statistics, access control, online map, etc. It is especially designed for company or organization with high requirements for data confidentiality.
At this project, I am responsible for product design, participate in system design, and develop data acquisition module, alarm module and system activation module, including corresponding front-end and back-end.
PowerIoT system
PowerIoT is a web based real- time system used for monitoring,  alarm of power and production environment in industrial enterprises. Also it includes data statistics, access control, online map, etc. It is especially designed for company or organization with high requirements for data confidentiality.
At this project, I am responsible for product design, participate in system design, and develop data acquisition module, alarm module and system activation module, including corresponding front-end and back-end.
PowerIoT system
PowerIoT is a web based real- time system used for monitoring,  alarm of power and production environment in industrial enterprises. Also it includes data statistics, access control, online map, etc. It is especially designed for company or organization with high requirements for data confidentiality.
At this project, I am responsible for product design, participate in system design, and develop data acquisition module, alarm module and system activation module, including corresponding front-end and back-end.
PowerIoT system
PowerIoT is a web based real- time system used for monitoring,  alarm of power and production environment in industrial enterprises. Also it includes data statistics, access control, online map, etc. It is especially designed for company or organization with high requirements for data confidentiality.
At this project, I am responsible for product design, participate in system design, and develop data acquisition module, alarm module and system activation module, including corresponding front-end and back-end.
PowerIoT system
PowerIoT is a web based real- time system used for monitoring,  alarm of power and production environment in industrial enterprises. Also it includes data statistics, access control, online map, etc. It is especially designed for company or organization with high requirements for data confidentiality.
At this project, I am responsible for product design, participate in system design, and develop data acquisition module, alarm module and system activation module, including corresponding front-end and back-end.
PowerIoT system
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
a BBS for company internal publishing threads and reply comments.
Technology stack:
- Server end & DB: Node.js, Express, MongoDB
- Web: ReactJS, React Bootstrap, React Router, React Context, HTML/JavaScript/CSS
- Desktop: Electron, Photon
- Mobile: React Native, Expo, NativeBase, React Navigation
- Deploy: AWS ES2, Ubuntu
- Git source:  github.com/opti201812/flybbs
FlyBBS (Mobile/Web/Desktop)
This is a CRBT service customized for Mexico Telcel. On this system, users can subscribe to the CRBT service called Centestone Telcel, download RBT songs and get some properties can be used in other games or services.
My responsibility:
- Front end: according to the UI design, develop pages, connect login & home page to Telcel interface
 with header enhancement.
- Project management: plan project schedule and take care of the project progress.
Contestone (a CRBT service)
This is a CRBT service customized for Mexico Telcel. On this system, users can subscribe to the CRBT service called Centestone Telcel, download RBT songs and get some properties can be used in other games or services.
My responsibility:
- Front end: according to the UI design, develop pages, connect login & home page to Telcel interface
 with header enhancement.
- Project management: plan project schedule and take care of the project progress.
Contestone (a CRBT service)
This is a CRBT service customized for Mexico Telcel. On this system, users can subscribe to the CRBT service called Centestone Telcel, download RBT songs and get some properties can be used in other games or services.
My responsibility:
- Front end: according to the UI design, develop pages, connect login & home page to Telcel interface
 with header enhancement.
- Project management: plan project schedule and take care of the project progress.
Contestone (a CRBT service)
This is a CRBT service customized for Mexico Telcel. On this system, users can subscribe to the CRBT service called Centestone Telcel, download RBT songs and get some properties can be used in other games or services.
My responsibility:
- Front end: according to the UI design, develop pages, connect login & home page to Telcel interface
 with header enhancement.
- Project management: plan project schedule and take care of the project progress.
Contestone (a CRBT service)
This is a CRBT service customized for Mexico Telcel. On this system, users can subscribe to the CRBT service called Centestone Telcel, download RBT songs and get some properties can be used in other games or services.
My responsibility:
- Front end: according to the UI design, develop pages, connect login & home page to Telcel interface
 with header enhancement.
- Project management: plan project schedule and take care of the project progress.
Contestone (a CRBT service)

Avaliações

Mudanças salvas
Mostrando 1 - 3 de 3 avaliações
Filtrar avaliações por: 5,0
$150,00 USD
professional worker will come back
JavaScript HTML5 Node.js React.js
+1 mais
M
Bandeira do(a) Toni G. @MtArarat
há 3 meses
5,0
$110,00 USD
Great talents ,easy to communicate and very flexible in term of working hours . Definitely recommended !
JavaScript React.js Next.js
R
Bandeira do(a) Robert W. @robertwangca
há 5 meses
5,0
$100,00 USD
Kevin is the best developer I have worked with so far. One thing that stands out about him the most is his knowledge of the entire stack and his quick undestanding of the business requirements. His ablility to grasp new knowlege is amazing and he is very effective in communication. He delivered everything professionally. I highly recommend him. And, we will definitely work with him again.
JavaScript HTML5 Node.js Google Firebase Next.js
R
Bandeira do(a) Robert W. @robertwangca
há 6 meses

Educação

Bachelor

Southeast University, China 1991 - 1995
(4 anos)

Contate Kevin J. para falar sobre o seu trabalho

Entre para falar sobre qualquer detalhe pelo chat

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Principais Habilidades

JavaScript 3 HTML5 2 Node.js 2 React.js 2 Google Firebase 2

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