Tuan Ha Tran

Rakuten Marketing – Group Rakuten – Prediction engineer team

- Google Cloud Platform lead engineer + Conception and build application relied on Google Cloud Platform : All data pipeline from Storage => Scheduler => Functions => Pub/Sub => App Engine => Memory Store (Data Store + Redis) => Dataflow => Big Query. For new project : build based on Docker containter + deployment to Kubenetes Engine. Language : Python, Java 11

- Log system lead engineer + Develop new functionalities and monitor the logging system + Kafka producer where messaged are built in Google protobuf format + Kafka consumer: Secor where message are converted into Json + Parquet (then uploaded to AWS and GCP) and Flink where message are consolidated for billing purpose.

- Conversion of actual library to micro-service + Convert from maven library to spring boot application using gRPC in basing on Google Protobuf as communication interface + Define API using Protobuf message + Develop adaptation layer in new spring-boot application in order to use actual library + Develop adaptation layer in current application to use newly developed application + Application using as standalone while waiting for Kubenetes infrastructure to be deployed

- Architecture community to define new micro-service architecture conversion

- Technical environment : Git, Java 8, gRPC

Senior Java Developer – Voyages-sncf.com – Team New Eurostar Backend Application for ticket reservation system.

- Develop new application Best Price Provider (BEP) to replace Offer Warehouse + Develop from scratch new application which provides best price per day + Study state of the art of old Offer Warehouse and design new application BEP. + Develop application with intelligent caching system Redis, TDD, BDD, REST API, multithreading and resource managing which responds to big volume and high level of availability. + Monitoring with Kibana, Grafana and performance testing with Gatling

- New functionalities development with Eurostar web-tier team in England + Study impact and redact technical + functional documents + Develop servlets receiving SOAP calls from Web-tier + Make SOAP calls to WDI backend by applying specific Eurostar rules + Unit test and integration test with JUnit and Mockito in TDD + Test web service APIs with Swagger + Version Management with GIT + Migration of existence to Java 8 and refactoring of codes

- Test automation with SOAP UI and Groovy script + Build templates (booking, exchange, after-sales service, etc.) and integrated them into test cases + test suites + Coding the library of query building and response processing with Groovy + assertor

- Devops: Platform installation until Recipe with Jenkins, Rundesk, Katana (VSCT internal tools)

- Project management: Agile Scrum, Kanban with 3 weeks sprints