Led the integration of a third-party CRM system, ensuring seamless data synchronization and workflow automation. Maintained and optimized a high-traffic Ruby on Rails application, resolving problems that impacted transaction processing and data integrity. Upgraded deprecated dependencies, enhancing security and system compatibility. Refactored monolithic components into modular services, significantly reducing technical debt and accelerating feature development. Optimized complex PostgreSQL queries, slashing report generation time from minutes to seconds while improving database efficiency. Streamlined the deployment pipeline using CI/CD tools (CircleCI, GitHub Actions, Docker), minimizing downtime during releases. Designed and implemented new features with GDPR compliance, ensuring data protection standards were met. Collaborated cross-functionally in Agile/Scrum environments, refining user stories and acceptance criteria to align business needs with technical execution.