Omar A.

• Evolutionary maintenance on the internal purchasing application • Corrective maintenance on production issues; isolating the problem, seeking for relevant signals, analysing, diagnose the root cause. • Project containerization (Docker) • Upgraded application performance; optimized requests, added various cache strategies. Divided rendering time by half. • Extended code coverage and optimized E2E tests continuously (Capybara/Selenium) since it was a pain point for delivery • Implemented SSO via SAML 2.0 (ruby-saml) as Service Provider, integrated with Keycloak (IdP) for development and testing purpose • Implemented the full-stack feature flag system; the backend endpoint, database-backed settings and the reusable Angular module for app-wide usage • Implemented real time notifications Service contract made through Ouidou.

Conducted a post-audit remediation on a Ruby on Rails application. Fixed XSS vulnerabilities, enforced rate limiting, implemented file extension whitelisting and reviewed granular access control (ACL/RBAC). Service contract made through Ouidou.

Rails upgrade from 5.2 to 7.2. Handled deprecations, Zeitwerk autoloading migration, dependency updates for a theater management application, adapted third-party libraries behavior (SpineJS, WYSIWYG editor) to prevent regressions, rewrote all CoffeeScript assets to vanilla JavaScript, as CoffeeScript is no longer supported in Rails 7. Service contract made through Ouidou.

• Set up build, configured reverse proxy for integration of a new application in the IS. (CRM) • Corrective & evolutionary maintenance on the CRM, jobs and APIs. • Set up & configured an industrialized pipeline for CI/CD for the project. • Managed to spread & automate deployment on other applications by extending my initial version. (CD) • Trivy Integration for security & rubocop pre-commit hook for linting • Set up and configured a HashiCorp Vault instance for secrets management Service contract made through Altansia.

• ETL pipeline using twitter API (RabbitMQ) • Automated Cloud billing with bonobo ETL • API development / data science various chores • Data visualisation

• Various feature development on bookandgolf.com to help customers to book green fees • Corrective maintenance • Micro services oriented • A huge focus on quality assurance and software testing the first year (TDD & BDD) • GraphQL development • RESTFUL API development • Ownership for production maintenance and issue resolving the second year (New Relic as APM for observability)

• Evolutionary maintenance on internal information system management tool. • Scraping & crawling tasks for a customer