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Sebastien Mesili, 38

Seoul, South Korea
Backend Developer at * HYBE Edu

Self learning, problem-solving oriented developer.

blockchainchaicordovadjangoes6, es2020javascriptlaravelmochamongodbmysqlnode.jsphppythonreactreact hooksreact-nativereduxsoliditystreamingtypescriptunit testingvimweb rtcwebsockets

Notable experiences

Software engineer

HYBE Edu
January 2021 - Present

Started as front-end developer then handled different software projects.
Create high usage global (multilingual) Korean learning services.
Design and implement Continuous Delivery using AWS services (CodeBuild, CodeDeploy, CodePipeline, CloudFormation, ...)
Supervise monitor and refactor outsourced software development.

Back end Developer

Spoon Radio
July 2020 - January 2021

As a member of an agile team, maintain, extend and refactor our private API services.
Identify bottlenecks then find solutions in both development processes and production code.

Software engineer

Teralabs (Terafunding)
November 2018 - June 2020

Developer in the business development team, in charge of the web services and prototypes, architectural paths, optimizations and specs definitions with non-tech related members.
From new projects (ie : web app using open APIs and 3rd party APIs to find appartments by time-to-arrive from and to work) to admin pages for the offline seminars of Teraedu (teraedu.co.kr).

Lead developer / CTO

Code Artist
November 2016 - October 2018

Identify problematics from front-ends to server management and backup systems.
Live-streaming oriented projects using Wowza, nginx-rtmp, webRTC.
Dapp MVP with solidity smart-contracts on the Ethereum blockchain; ICO dashboard and contracts.
Shift the technology stack to javascript, simplifying collaboration with other devs.
Implement git flow style workflow.
Manage junior front-end devs.
Do Lots of R&D (A.I., VR, games, social commerce).

Tech : PHP7+ (codeigniter, laravel, etc...), Javascript (angular, react, react-native, node, websockets, web RTC, web3, etc...), Blockchain (ethereum, QTUM, solidity). git, Trello, Redmine, Odoo.

Full Stack Developer

CATIA (France, Remote)
(from 2008 as Freelancer) May 2013 - May 2016

Build a platform that allow security agents all around France update the status of their emergency interventions, dividing the work load by a factor of 4 in the office.
Communicate with the non-tech teams to review the business model (to freemium) which lead to a growth in usage.
The platform is still running as of today (einter.fr).

Tech : In-house web framework (OOP PHP 5 then switch to PHP 7), using smarty. Ionic / Cordova. MySQL (3NF).

Other Projects

Live score web app

2018

Plan, design & build a live score display and it's management system (Specific for Drifting, motorsports).
Use in official competitions where drivers were able to check the results and know their next opponent by just looking at the screen, with no action required, while sitting in their cars.

Tech : react, react-redux, node, mariaDB, redis, socket.io, Trello, git

Mesili.fr | Barter Community

From 2002 to 2006

Build and manage a platform for bartering enthusiasts.
Grew up to 30,000 active members.

Tech : PHP, MySQL, smarty.