Jose Ruben Lopez

Full Stack Developer — Digital Transformation (GOES)

Responsible for the end-to-end development of an institutional school scheduling and academic planning platform, from domain modeling and system architecture through production deployment.

- Designed a NestJS and strict TypeScript backend on PostgreSQL using Domain-Driven Design and Clean Architecture, with dependency boundaries enforced automatically through dependency-cruiser.
- Reconstructed and migrated the platform from Python to TypeScript and implemented the frontend with React 19 and strongly typed API contracts generated from OpenAPI specifications.
- Integrated federated GOES SSO with Keycloak and OpenID Connect using a Backend-for-Frontend pattern, secure opaque sessions, encrypted tokens, derived CSRF protection, and bounded token renewal.
- Built deny-by-default authorization and a capability matrix recalculated on every request so permission changes apply immediately to active sessions.
- Established specification-driven delivery with frozen acceptance tests, at least 80% code coverage, strict ESLint rules, architectural quality gates, and the institution's SonarQube quality gate.
- Applied Spec-Driven Development to AI-assisted engineering, keeping implementation governed by approved specifications, automated tests, and architectural standards.

Full Stack Developer — uSource

Built modern web interfaces and scalable Laravel services, designing complex user workflows and connecting frontend components to backend APIs across complete product flows.

- Built interactive workflows with Livewire, Alpine.js and React, including multi-step forms, dashboards, modals, drawers and real-time components.
- Designed reusable UI components and consistent responsive layouts across the platform.
- Integrated frontend applications with REST APIs, handling validation, asynchronous loading and error states.
- Developed and maintained PHP/Laravel controllers and service classes using modular architecture.
- Improved database performance through Eloquent eager loading, query optimization and refactoring.

Senior PHP Developer - INDEED Contractor.

I started at Indeed as a PHP Developer, focusing on resolving security vulnerabilities and optimizing existing backend services. Over time, my role expanded to include Java, Node.js, and Python development, contributing to the enhancement and creation of new features for internal tools and services.

- Developed and maintained backend services using PHP, ensuring security and performance improvements.
- Worked with MySQL and Firebase to manage and optimize database interactions.
- Led Java Spring Boot migrations for DarthCoders projects, modernizing and improving system performance.
- Updated and migrated libraries for NPSSurvey, using Python (Flask) to enhance survey functionalities.
- Assisted in building AWS infrastructure components for Project Bell using Terraform, improving cloud resource management.
- Managed migrations and fixes for MySQL 8 in AdCentral, ensuring data integrity and compatibility.
- Integrated PagerDuty alerts via Terraform, enhancing monitoring and incident response.
- Improved the Event Bus Tester API by implementing new features and optimizations using Java and REST API.

This role has allowed me to work across multiple technologies, including PHP, Java, Node.js, Python, and Terraform, to enhance internal tools and improve system reliability and scalability.

PHP and Android Developer - TELUS International

At TELUS International, I worked as a PHP and Java (Android Studio) Developer, focusing on the development and maintenance of an internal social network. My responsibilities included full-stack development, mobile application enhancements, and cloud migration efforts.

- Developed and maintained the internal social network using PHP and the Boonex framework.
- Designed and implemented Android mobile applications using Java (Android Studio) to extend the social network's functionality to mobile users.
- Created and customized various social network modules, such as Mood, Polls, Surveys, Gaming, Hashtag Restrictions, and Privacy Settings.
- Enhanced the OsTicket ticketing system to meet business requirements.
- Implemented modifications and optimizations in Symfony-based applications.
- Led the migration of the social network to Google Cloud Platform (GCP) to improve scalability and performance.
- Developed a parking mobile app using PhoneGap and Android (Java), integrating real-time data for user convenience.
- Managed and deployed updates to testing and production environments, ensuring smooth application performance.

This experience allowed me to strengthen my expertise in backend development, API integration, mobile application development, and cloud migration, all within the context of a dynamic and feature-rich internal social network.

PHP and Front-end Programmer

- Worked with multiple NGOs to design, develop, and maintain dynamic websites and full web platforms using PHP and front-end technologies.
- Built custom web solutions for community engagement, including opinion/feedback platforms, online surveys, and content-driven portals.
- Developed admin panels and CMS-style features to manage content, users, and publications efficiently.
- Supported e-learning initiatives by configuring and customizing Moodle-based platforms, including course structures, roles/permissions, and UI adjustments.
- Handled end-to-end deployments: preparing releases, uploading to production servers, configuring environments, and validating functionality after go-live.
- Collaborated with stakeholders to translate requirements into functional features, ensuring usability, performance, and reliable operation.