* Expert Java / Spring development + eclipse, maven. * Production experience devops on AWS (conception, deployment, optimization perf and cost)* Deployment platforms: AWS with Tomcat + spring, Spring boot,* Automation tools: Ansible, Jenkins, CloudFormation* Container: Docker* Database: PostgreSQL, HSQL + myBatis* Other technologies and tools: Message queuing: ActiveMQ; Efficient caching with memcached and ehcache * Unix based development using C/C++, Perl, Shell & other unix toolbox (awk, sed, etc...)* Knowledge of config management with subversion and git* Knowledge of JSON and XML schema and web services (JAX-WS, JAXB, CXF)* Knowledge of REST/JSON; Spring, Jersey* Server side processing (C, Java).* Travel business e-messaging: OTA WS, SABRE, Amadeus, EasyJet, ...* Automated monitoring and testing using session recording and replay.* Maintenance of complex Java / JEE and legacy applications.* Performance analysis of java applications using jprofiler.* Creation of integration API between legacy applications and new Java based system (ex: code generation to output a complete integration API between complex systems)Always looking for ways to improve the efficiency of the development process by proposing simplifications or standardizations for existing solutions and proposing new solutions with proof of concepts.