Senior Software Engineer - Trasmisora Internacional Mexicana | Feb 2025 - May 2026
- Architected and built a fintech platform from scratch in 6 months with a team of 3 following Shape Up methodology, delivering 30+ API endpoints and integrating Galileo for card issuing and STP for SPEI transfers.
- Implemented full card lifecycle management (creation, activation, PIN, balance), KYC workflows via Truora with biometric validation, and asynchronous webhook pipelines using Solid Queue.
- Developed a Python-based FX aggregation engine collecting real-time exchange rates from multiple international banking sources to support multi-currency operations.
- Designed system architecture using hexagonal design principles and applied TDD practices, improving code reliability, separation of concerns, and long-term maintainability. Contributed to Flutter mobile application development and maintained CI/CD pipelines, extending full-stack participation across backend, API, and mobile layers.
Technologies: Ruby on Rails, PostgreSQL, Python, AWS, Docker, Solid Queue, Flutter, CI/CD, RSpec
Software Engineer / Technical Lead - Modyo | Sep 2024 - Feb 2025
- Led a team of 4 engineers in an Agile/Scrum environment, maintaining a production Ruby on Rails monolith serving 10,000+ active users and ensuring platform stability and continuous feature delivery.
- Identified and resolved N+1 query problems and critical performance bottlenecks, significantly improving response times and scalability for the platform's active user base.
- Designed and delivered course management, content delivery, and student progress tracking features, directly supporting the platform's core educational workflows.
- Contributed to frontend development using Liquid templates and React, collaborating across the full stack to deliver complete user-facing features.
- Collaborated directly with product stakeholders and UX teams to define roadmap priorities, push back on requirements when needed, conducted code reviews, and established engineering best practices.
Technologies: Ruby on Rails, MySQL, React, AWS, Docker, Solid Queue, Liquid Template, CI/CD
Senior Software Engineer - Cantera Digital | Mar 2024 - Aug 2024
- Developed backend services for an AI-powered education platform used by teachers across Mexico, enabling scalable content delivery and classroom management following Agile methodologies.
- Built AI-driven homework generation features leveraging ChatGPT and LLM integration, reducing teacher workload and accelerating content creation workflows.
- Practiced Test-Driven Development (TDD) and delivered comprehensive RSpec test coverage, ensuring data integrity across asynchronous pub/sub communication workflows.
Technologies: Ruby on Rails, PostgreSQL, React, Hotwire, Stimulus, AWS, Docker, ChatGPT, CI/CD, RSpec
Software Engineer / Technical Lead - ArkusNexus | Feb 2023 - Mar 2024
- Engineered a custom Ruby on Rails ETL application to migrate 10M+ records between Amazon Redshift and PostgreSQL, applying system design principles and deploying to AWS to overcome infrastructure constraints.
- Built a document management platform for notary operations from scratch, delivering OCR-powered document extraction and validation services that automated previously manual workflows.
- Designed scalable REST APIs and microservices-oriented data processing pipelines in an Agile/Scrum environment, leading a team of 3 engineers across multiple concurrent backend systems.
Technologies: Ruby on Rails, PostgreSQL, Amazon Redshift, Hotwire, Stimulus, React, AWS, Docker, ChatGPT, CI/CD
Software Engineer / Technical Lead - Homie | Mar 2021 - Dec 2022
- Scaled the engineering team from 3 to 15 developers in 3 months using Agile/Scrum practices and pair programming, maintaining backend delivery momentum despite cross-team dependencies.
- Designed and delivered a lead qualification microservice using TDD practices, streamlining the sales funnel and improving conversion pipeline efficiency.
- Implemented a database-driven feature flag system to control feature rollouts across the platform, enabling safe and gradual releases without additional deployments.
- Collaborated closely with product managers and business stakeholders to shape roadmap priorities, contributing a product mindset to technical decision-making and architecture.
- Led system design decisions and defined technical strategy, mentoring engineers across multiple seniority levels and aligning the engineering roadmap with business objectives.
Technologies: Ruby on Rails, PostgreSQL, Keycloak, React, AWS, Docker, CI/CD, RSpec
