Contracted to design and build an application optimizing business processes and client communication for a social-development organization. Enhanced the platform by designing new features, refactoring the codebase, and resolving critical bugs. Collaborated cross-functionally with product, frontend, and infrastructure teams.

Developed and maintained full-stack features across Airtm's platform using React, Node.js, JavaScript, and TypeScript. Integrated Claude Sonnet and Claude Opus into the daily engineering workflow. Built and integrated GraphQL APIs and data-driven functionality. Investigated and resolved production issues. Worked with distributed systems and backend infrastructure using Kafka, Redis, PostgreSQL, and Kubernetes.

Contributed to the redesign of PayPal's main checkout page in an agile, Scrum-managed environment. Served as primary front-end developer: built new features, implemented updates, fixed bugs, and optimized for performance and usability. Wrote unit and integration tests.

Built dynamic user interfaces with React, integrating RESTful APIs and GraphQL using Next.js, Redux, Apollo Client, and React Query. Developed Node.js microservices exposing RESTful and GraphQL interfaces, managing MySQL and MongoDB connections. Delivered high-quality work in a Scrum environment.

Led technology strategy for an event-planning platform. Grew and led a cross-functional team from 1 to 15 people, scaling the client portfolio to 5 active projects per month. Partnered with the UX designer and key clients to define and validate new features. Designed overall software architecture.

Led a development team on digital-certificate projects, covering requirements analysis, development, testing, deployment, and ongoing support. Played a key role in building a secure vote-counting platform for Peru's mayoral elections. Designed and developed a visual monitoring interface for tracking data-transmission progress.

Founded and directed a technology company delivering software solutions to private and government organizations. Managed company resources end-to-end, balancing client interviews, presentations, and technical leadership. Mentored team members on key technologies and best practices.