Raymond Y.

About Raymond Y.

I’m a full stack software engineer who enjoys building reliable, scalable web applications. My work spans front end and back end development, with a strong foundation in JavaScript/TypeScript, React, Node.js, PHP, Laravel and cloud services like AWS and Docker.My passion lies in connecting the dots between product vision, design strategy, and user needs. I thrive on cross-functional collaboration, partnering closely with Product Managers and UX Designers to deeply understand user behavior and uncover critical pain points.I drive product enhancement on a foundation of quality and scalability: I have extensive experience building out and maintaining robust design systems, striving to deliver intuitive, well-performing, and highly scalable user interfaces.I excel at telling stories through data visualization. By leveraging technical expertise like D3.js and strong analytical skills, I translate complex datasets into clear, actionable visual narratives that ensure every design decision is strategic and data-driven.

Experience

1. Senior Software Engineer

   DTN

   May 2024 — Present

   Collaborated with Product Managers, Software Engineers, and UX Designers in Agile teams to integrate an acquired product and launch a new application, co-developing a design system of over 60 React, TypeScript components, reducing frontend development time by 80% and supporting adoption by 12 engineering teams• Engineered an interactive, data-intensive application using Next.js, leveraging server components, route prefetching, and automatic code-splitting to reduce initial load times and shrink the client-side bundle size, optimizing for Incremental Static Regeneration (ISR) and Server-Side Rendering (SSR)• Developed a suite of RESTful APIs aligned with OpenAPI specifications, utilizing the Outside-in API design approach, and incorporating HTTP methods, resource-oriented naming, and patterns such as request-response, pagination, rate limiting, API authentication, authorization, and webhooks to ensure optimal endpoint behavior and consistent front-end integration, facilitated by tools like Swagger UI and Redoc, thus achieving efficient client consumption• Engineered data visualizations with D3.js and an interactive Mapbox GL geospatial interface within React, enabling real-time data exploration and improving rendering speed for faster, insight-driven decisions• Improved deployment workflows for observability components by automating build and release pipelines with GitHub Actions, GitLab CI/CD, and Helm and integrating Canary Deployments and Blue-Green Rollouts, reducing both deployment downtime and rollback events• Conducted unit, integration, and snapshot tests for React components using Jest and React Testing Library, improving code coverage to 85%. Enabled scalable iteration across front-end codebases by applying Test-Driven Development, Dependency Injection, and Service Virtualization