Missions Clojure : Dénichez votre future mission freelance

Résumé des missions de Ryan,
freelance CLOJURE habitant le Val-d'Oise (95)

• LEAD BACKEND ENGINEER

  Testapic (then UserTesting) // Remote
  Jan 2022 - Jan 2023

  • Animate the backend Guild meetings introducing technical topics (Testapic)
  • Drafted good practice and guidelines for the team along with Clean Architecture and DDD most critical concepts (Testapic)
  • Partnered with the Security team, which lead to the full correction of the highest and medium vulnerabilities (Testapic)
  • Re-implement the existing session storage manager, resulting in 50% less traffic in the DataStore (Testapic)
  • Support the CTO and Data team to prune the existing overcomplex data, which result in the deletion of 25% of SQL tables (Testapic)
  • Received coaching and support from peer senior backend engineers to gain practical experience in using Clojure with Emacs, which enabled me to upgrade the shared utility library on 20+ services

  Technologies: Clojure, PHP (Zend, Symfony), GCP, Postgres, MySQL, RabbitMQ, Docker, Terraform

• LEAD BACKEND ENGINEER

  Eurecab // Paris then Full remote
  Jan 2017 - Jan 2022

  • Spearheaded design and implementation of multiple critical services:
  o Driver/Rider matching algorithm
  o First party REST API for both Rider and Driver app
  o Driver geolocation tracking and real time events
  o Quote estimation engine to our partners API (requests parallelization)
  o Coupon discount system
  o Feature flags
  • Bring Unit Testing culture to the team, coverage went from 0 to 60% while still actively developing new features.
  • Maintain and optimize the CI pipeline speed by 30%
  • Move legacy monolith parts to an Event Driven Architecture, which led to a significative improvement in performance and stability

  Technologies: Laravel, Redis, AWS, Firebase, Pusher, VueJS, WebSocket, supervisor

• BACKEND ENGINEER

  Alchimie //Aubervilliers
  Jan 2014 - Jan 2017

  • Integrate worldwide mobile operator payment solution (Orange, SFR, Bouygues, Telcel, AT&T, Movistar, O2, T-Mobile, …)
  • Developed a Zendesk app plugged with an internal API to help support agents with their daily tasks

  Technologies: Zend, Redis, Memcache, RabbitMQ, Splunk, JavaScript, React

• BACKEND ENGINEER

  Smile // Paris //
  Jan 2012 - Jan 2014

  • Built ******** website using Drupal including a custom newsletter module, entity state flow machine, translatable media library, responsive design
  • Collaborated with senior engineers on the Louvre Hotels Group (Campanile, Kyriad, Premiere Classe) brand websites
  • Implemented a mini website factory for Louvre Hotels Group, that resulted in the creation of 500+ sub domains for hotel landing page which greatly improved SEO
  • Developed an internal system of document classification (custom modules/themes/content/taxonomy) and provide documentation and customer training on the project for the Sorbonne library intranet

  Technologies: Drupal, Solr, Redis, Memcache, Varnish (with ESI tags), LXC, jQuery, MySQL, PerconaDB