Sergio M.

• Role: Sr Backend engineer

• Tech stack: NodeJS+GoLang (Cassandra/Scylla/ElasticSearch). Kubernetes + Docker. AWS. ArgoCD and DataDog tracing systems. Gitlab.

• Architecture: microservices deployed in a high reliable and scalable Kubernetes cloud ecosystem. Event driven architecture based on NATS, Pulsar or Kafka. Two different applications (WebApp, AdminTool) shared by a backend.

• Tasks: refinement, definition, maintenance and ownership (including deployment to production) of different microservices in both GoLang and NodeJS languages. Development of scalable and low latency microservices APIs using API REST and GRPC design systems. TDD in GoLang services (mockery, nodetest). Integration with third party libraries (Rest calls, token authentication) such as Hubspot, Zoom, Stripe, Revolut or ClassGap. Make use of CI/CD in a GitLab system, within a SCRUM methodology. Participated in one of the biggest company’s achievements, such as implementing Virtual Reality integration within the platform. Also, rotating as production maintenance engineer giving high support to defects and bugs found by users and stakeholders. Elaborate documentation in Confluence (Jira suite)

• Role: Sr FullStack developer

• Tech stack: React + Typescript + NodeJS / (Postgresql/MongoDB/Redis/AWS CognitoDB). Docker. AWS. Bitbucket.

• Architecture: Hexagonal. Monolithic. Two different applications (Ecommerce , BackOffice) shared by a backend.

• Tasks: refinement and development of different features to accomplish the development of client’s ecommerce portal and backoffice tool. Development of tests in both FE and BE mainly with Jest and Mocha (min coverage of 95%). Integration with third party libraries (Rest calls, token authentication) such as Salesforce, Redsys. SCRUM methodology. Used libraries (among others): ExpressJS, NestJS, json web tokens, passport, body-parser, cookie-parser, Morgan, Winston, CORS, sheetJS, MySql, Mongoose, dotenv…

• Role: Sr FullStack developer

• Tech stack: React + Typescript / (Postgresql/MongoDB). Docker. AWS. Kibana tracing system. Github.

• Architecture: Monolithic. Three different applications (WebApp, Booking Manager, BackOffice) shared by a backend.

• Tasks: refinement and development of features related to the booking manager’s portal. Development of tests in both FE and BE mainly with Jest. Integration with third party libraries such as Google calendar. SCRUM Agile methodology.