Jesus Cardenas

- Implement A/B tests on sofatutor’s main platform - Testing with Test-Driven development and Business-Driven development (TDD & BDD) using tools like RSpec and Capybara. - Business logic sketching. - Integration of external services like Stripe using APIs and SDKs. - Platform functionalities, optimization, Reduction of Technical debt. - Code reviews and mentorship on backend topics. - Collaborate with own cross-functional team via Agile structure.

• Creation of API from scratch using Ruby on Rails framework, with PostgreSQL as main DB. • SQL Scripting and query optimization. • Debugging on Production environments via AWS. • Collaboration with multidisciplinary teams like Product and Design teams. • Mentorship to Junior Devs. • Business logic modeling and Entity-relationship modeling.

• New Backend platform development from zero using Ruby on Rails and PostgreSQL. • SQL Scripting on PL/SQL and PostgreSQL. • Infrastructure deployment via AWS through EBS, S3, CloudFront, RDS, CloudWatch. • Use of Test-Driven Development (TDD) powered by Rspec along with CircleCI and Jenkins.

- Surveillance of Production software and applications. - New architectures planning using AWS, Google Cloud, Heroku and Azure. - CI/CD, repositories, servers and automation management. - Code Optimization on Java, Javascript, Ruby and Python based projects. - Collaborative working. - Access management.

- Working in projects based on Ruby on Rails, Javacript, CSS. - REST APIs integration. - Extensive SQL scripting and query optimization. - Maintenance of Mobile Apps based on Ruby on Rails & Angular. - Provide support and debugging to apps made on NodeJS, Java, Ruby on Rails.

- Telemetry implementation project Management on Locomotives, Tugboats and Vehicles. - Design, Support, Installation of AIS, Radars, CCTV, GPS, Radio and Mobile Network devices - Research on Renewable energy projects and face-recognition using OpenCV and embedded systems