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Patrissol KENFACK
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About Me

I'm Patrissol Kenfack, a Full Stack Developer and Mobile Specialist

Sense of listening, motivated, dynamic, organized, sociable, professional in the development of web and mobile applications, I have learned over time, to combine speed and efficiency.

Experience: 5 years

Freelance: Available

Location: Châtenay-Malabry, France

Languages: English & French

Pseudo: Juns

Email: patrissolkenfack@gmail.com

Experience

  • Senior Frontend developer

    November 2023 - March 2026   |  

    Cegedim Sante

    Cegedim Santé (Doctolib's main competitor) is developing Maiia, a platform that allows patients to conduct online teleconsultations or make appointments with a practitioner.

    I optimized the mobile application (+49 performance points) and stabilized the video call system between practitioners and patients, while enhancing features for healthcare professionals to improve the user experience on the web and mobile devices.

    At the same time, I contributed to the development of Kiiwi, the group's Design System used by several applications in production representing several million users.

    React Native Maestro & Flashlight React.js & Next.js Typescript Storybook & Chromatic Redux / Zustand React-Query Radix-UI / MUI Vitest & React Testing Library
  • Lead Full Stack Developer

    January 2022 - December 2024   |  

    Influbrand

    As Lead of a team of 4 people, I contributed to the development of Influbrand, a platform connecting advertisers and publishers, including:

    • Implementation of engineering practices and development workflows (code reviews, technical workshops, code standards, and delivery organization)
    • Modeling and setting up the transactional system between advertisers and publishers.
    • Integrating payment and dispute management features.
    • Creating an integrated messaging space to facilitate communication.
    • Developing advanced modules to enhance the user experience and campaign tracking.
    Java Spring Boot PHP & Laravel MongoDB React.js Typescript Sass AWS Pixel Perfect Figma
  • Frontend Referent

    August 2021 - October 2023   |  

    Phenix SAS

    Development of Connect that enables supermarkets, hypermarkets and convenience stores to donate their unsold goods to associations, thus not only reducing their costly breakage, but also drastically reducing food waste.

    React.js Typescript Redux-Toolkit Query Sass swr Material-UI
  • Lead Full Stack Developer

    July 2019 - January 2021   |  

    Heylo (Mobility Startup)

    As Lead Developer I participated in the development of the Heylo platform, taking over an existing product in order to improve its performance, reliability, and user experience.

    I contributed to the improvement and stabilization of the driver and passenger notification system based on WebPush (browsers), WebSockets, and SMS, in order to ensure reliable real-time communications around trips.

    Php Laravel / Lumen SMS WebSockets WebPush REST APIs MySQL Lighthouse
  • Full Stack Developer Consultant   |   Design and development of a dynamic survey administration platform

    November 2020 - January 2021   |

    Alaxione

    Development of a web application for designing and administering dynamic surveys. The platform allows users to create questionnaires with questions that evolve based on the user's responses, and then distribute these surveys via email and SMS.

    I also developed a system for collecting and analyzing responses, allowing statistics to be generated in order to evaluate survey results.

    Firebase React.js Javascript Redux Material-UI
  • Frontend Developer Consultant

    March 2020 - August 2020   |  

    Medicasure Sprl

    The application determines whether a person is infected with the coronavirus based on the answers provided in a well-trained questionnaire that complies with UX/UI standards. I was mainly in charge of everything concerning the front-end, especially the design. So we have built complex application and smart interface using technologies like React.js, VueJs et Laravel

    Php Laravel JQuery React.js VueJs Redux Sass Bootstrap
  • Full Stack Developer

    September 2017 - May 2019   |  

    Hills Dev

    At Hills Dev, an application development company, I contributed to the rapid delivery of high-quality digital products across multiple projects. I notably worked on the company's flagship finance application, designed to securely manage and streamline funding operations. This role strengthened my ability to develop scalable solutions in fast-paced environments while maintaining strong standards of performance and reliability.

    React.js Java Spring Boot Redux Sass Bootstrap

My Skills

JavaScript/TypeScript

95%

Animations & Effects

70%

Performance & Optimization

85%

SEO & Website Optimization

80%

CI/CD

60%

React.js/React-Native

92%

Node.js/ExpressJs

85%

Java & Spring Boot

70%

PHP & Laravel

80%

MongoDB/SQL Databases

80%

Education

  • Full Stack Certification

    FreeCodeCamp

    I hold a Full Stack Certification from the prestigious Academy FreeCodeCamp based in America followed by 6 other certifications.

  • Bachelor's Degree in Mathematics-Computer Sciences

    University of Dschang

    I went through a complete training in Mathematics-Computer Sciences in 3 years. All over the training, we have covered many advanced features of computer sciences and build awesome apps using new technologies.

My Services

Web apps building

With a long experience in web application development, you can trust me with your project with complete peace of mind.

Mobile apps building

I am extremely tooled to build a mobile application, fluid, clean, elegant and with a beautiful interface.

Project consultation

You have an IT project for which you would like to have an expert opinion, my advice + my experience will greatly help you to make the right choice and to better concretize your project.

Portfolio

Checkout a few of my works

Web Application

Huge contribution to the development of the Universal Health Coverage (CSU) platform of the Ministry of Health in Cameroon

The CSU project is a platform providing Cameroonians with access to preventive, curative, palliative and rehabilitative healthcare services. It federates a whole range of operations, making the healthcare pathway in Cameroon very fluid.

View Project

Web Application

Development of the platform RPN, in Canada

RPN is a platform that aimed at ensuring dignified and respectful repatriations for members of Canada's African community.

View Project

Web Application

Development of a survey administration software for Alaxione compagny in France

The application allows you to create hyper dynamic questionnaires that are sent by mail / SMS through an excellent sending tool duly designed by me. The questions vary by type and statistics are available for evaluation responses to questionnaires.

View Project

Web Application

React.js engineer on the Komunityo project in Canada

Komunityoo is a secure web application that allows easy and simple management of a community or group. This application allows to build and preserve the history of communities or groups. It makes the group dynamic: members can connect to their account on the community, read announcements, consult the balance of their account, add credit, see the transactions of their account, and many more

View Project

Web Application

Developed an online Covid-19 tester for the Medicasure company in Belgium

The application determines whether a person is infected with the corona virus based on the answers provided in a well-trained questionnaire that complies with UX/UI standards.

View Project

Web Application

Developed Heylo, a carpooling application for the Heylo company

I was the main developer in this application where I just used the advanced features such as Events, polymorphic relationships, View composers, etc.

View Project

Mobile Application

Developed GhJob, a fluid mobile app for job seeker

GhJob is the right place to find your dream job. It gathers the most popular companies and organizations around the world. All you have to do is to apply and let your skills do the rest. Finding a job has never been easier!

Get the app on Play Store ― View Project

React-native Library

Developed react-native-audio-video-tools, a library to perform some advanced operation on audios and videos

React-native-audio-video-tools is a set of functions that allow you to easily perform advanced audio and video manipulations such as cutting, extraction, compressing, conversion and so on.

View Project

JavaScript Library

Developed JFV (Juns Form Validator), a JavaScript library

JFV is an HTML form checker that makes it easy to check individual fields, allowing developers to focus on the essentials. It has several short code which allows to couple speed and efficiency.

View Project

Web Games

Developed an online game made in pure React.js and Firebase

This game is of the "memory game" type which consists in obtaining as many points as possible by turning over 2 cards of the same kind. Since it is an online game, it therefore includes a world ranking of the different players.

View Project

PHP Library

Developed JunsPHP, powerful PHP Framework

I created my own Framework implementing the MVC architecture. It is at its 1.3.0 version and is already functional. It was made in PHP exploiting the power of Object Oriented PHP.

View Project

My Achievements

Certifications 0
Clients 0
Projects done 0
Job Success 0 %

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