Hadrien Blanc

- Custom-built solutions for enterprises - Full-stack development: application evolution and maintenance - Back-end development, database optimization, and performance audits - Implement Continuous Integration and Continuous Delivery pipelines (DevOps, CI/CD)

- Supported the data team. - Create a new Django API - Deployed and maintained production code, monitoring performance and resolving bugs. - Simplified and optimized code for enhanced performance and maintainability. - Joined the team without a developer, facilitating knowledge transfer and ensuring easy access to code for the new developer.

Skills: PostgreSQL · Ruby on Rails · Unit Testing

Skills: REST APIs · HTML5 · PostgreSQL · Ruby on Rails · Scrum · IT Development · Unit Testing

- first action : performance improvement and database configuration --> impact : increase the response time by 30% - Maintain, fix bugs and create new features on the ruby on rails application - Migrate 16 on-premise servers with 9 PHP/MySQL web application to Heroku and AWS.

- kickstart a back-end data synchronisation tool between two system (setup circle ci, rspec, rails, docker, docker-compose) - Help the communication between the New York and Paris Teams (presentation, recommendation, implementation) - work on how to parallelise the system (design with sidekiq workers) - participate on a delivery system version 2

- Create from scatch a Ruby on Rails back-end to collect financial data and generate new insights from a marketing investment perspective - Lead a second project to build the back-end of a Ruby on Rails web app based from a prototype to deliver an innovative dashboard - Build the heroku pipeline to production (local, staging and production environment) (Database Design, Ruby on Rails, PostgreSQL, Continuous Integration, Data Mining, Angular, Javascript, Heroku, SSO Microsoft Azure)

- Build new features within the web application - Create the Docker compose stack for the local environnement - Bugfix & Performance optimisation (Ruby on Rails, React.js / Redux, Postgres, Heroku, CircleCI, Stripe API)

- Bugfix & Performance optimization - Data analysis for specific customers - Design, Develop and test new features (Ruby on Rails, MySQL, MongoDB, Redis, Javascript, React.js, Jenkins, Docker)

- Bugfix & Refactoring (Ruby on Rails, Java, FullStack, scripting) - Ensure the production run success (DevOps, Kubernetes, Docker) - Work and supervise external contractors (C# .Net, Go, Ruby, dev/ops)

- In charge of 850 student (second year / third year / special programs) - Recruiting and organize a team of pedagogical engineers & contractors. - Deliver technical presentation (example : C Unix, ASM, Unit testing) - Track the success of more than 1000 internships a year - Ensure the follow-up on the student projects - Build tools to support this mission

Wrote a Master thesis in applied Machine Learning : Stocks Price Valuation with Machine Learning models based on Technical and Financial Analysis - Gathered financial data from more than 15000 financial companies from the last 10 years - Applied machine learning models with a cross-fold validation > Linear prediction > Neural network with a Backpropagation Gradient Descent > Restricted Boltzmann Machines > SVM (Support vector machine) > Decision Tree Learning - Benchmarked the results and identify the adequate model for the adequate problem (C/C++, Python, R, Ruby on rails, database mysql, Machine Learning)

Front-end development of a new CRM (LAMP, Javascript, Ext.js, PostgreSQL, PHP, Zend)

Modernization of the user interface in French Navy submarine sonar, for the next sonar generation. (Java, Swing, PHP, Clearcase, C/C++, Script, XML)

Build a prototype CRM for car rental (C/C++, Windev, PHP, MySQL, Apache, Linux, Google Map, HTML/Css )

Implementation of a CRM with PHP/MySQL and the framework CodeIgniter. (PHP, CodeIgniter, MySQL, git, Javascript, JQuery)

Development of a software to process the annual sunshine intensity based from a picture. (C/C++, GTK, HTML/css)