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Norman Colon

Full Stack Developer

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Puerto Rico
Joined July 3, 2025

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English
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About
Full-stack developer with 8+ years of experience in building responsive, user-centric web applications using React, Angular, Node.js, and modern front-end technologies. Expertise includes: Scalable UI Development and API Integration: Proven expertise in crafting scalable UIs and integrating third-party APIs. Cloud & DevOps: Proficient in cloud platforms (AWS, GCP, Azure) and CI/CD practices. SDLC & Real-time Applications: Strong understanding of SDLC, cross-browser compatibility, and real-time trading dashboard development using WebSocket. Team Collaboration: A collaborative team player with excellent debugging, mentoring, and delivery skills. Key career highlights include: Perennial Technologies LLC (Full Stack Developer, 05/2023-01/2025): Re-architected legacy services into modern Node.js/GraphQL microservices, improving backend response times by 45%. Built data-scraping and ETL tools in TypeScript, increasing data freshness by 50%. Automated billing and subscription management with Stripe/PayPal webhooks, cutting manual invoicing tasks by 80%. Ensured 99.9% uptime by setting up CloudWatch alarms and auto-scaling. Collaborated in Agile sprints, reducing rework by 30%. Evergreen LLC (Senior Frontend Developer, 09/2021-04/2023): Spearheaded a migration from AngularJS to React. Resolved performance bottlenecks, reducing initial page load time by 40%. Architected the company's design system using Storybook, reducing UI development time by 40%. Designed and implemented CI/CD pipelines using GitHub Actions, reducing deployment time by 60%. Evergreen LLC (Frontend Developer, 08/2019-08/2021): Developed customer-facing SPAs, improving page-load times by 30%. Built reusable Vue.js components. Created RESTful API integrations, improving frontend data load time by 30%. Mentored interns. Evergreen LLC (Junior Frontend Developer & Intern, 06/2017-07/2019): Converted designs to HTML/CSS/JavaScript. Developed dynamic data visualizations. Participated in Agile sprint cycles. Conducted cross-browser testing and wrote Jest unit tests.