Alex Rivera
Professional Summary
Product-focused Full Stack Developer with 5+ years of experience building scalable web applications for high-growth startups and enterprise clients. Specialized in React ecosystem, Node.js backend development, and server-less architectures on AWS and GCP. Proven track record of leading cross-functional teams, mentoring junior developers, and delivering mission-critical features that drive user engagement and revenue growth. Passionate about clean code, performance optimization, and creating exceptional user experiences.
Experience
Senior Frontend Engineer
2021-03 - PresentTechFlow Solutions
- Led the complete migration of a legacy AngularJS dashboard to Next.js 14, improving initial load times by 40% and reducing bundle size by 60%
- Architected and implemented a real-time collaboration feature using WebSockets and Redis, enabling 50+ concurrent users on shared documents
- Mentored 3 junior developers through code reviews, pair programming sessions, and weekly 1:1 technical discussions
Full Stack Developer
2018-06 - 2021-02StartUp Inc
- Developed and maintained core features for a high-traffic e-commerce platform serving 100K+ daily active users using Node.js and React
- Designed and implemented a microservices architecture that improved system reliability from 99.5% to 99.95% uptime
- Built a custom analytics dashboard that reduced customer support tickets by 35% through improved self-service insights
Frontend Developer
2016-08 - 2018-05Digital Agency Co
- Built responsive web applications for 15+ clients across finance, healthcare, and retail industries
- Implemented CI/CD pipelines using Jenkins and Docker, reducing deployment time from 2 hours to 15 minutes
Projects
OpenTask - Project Management Tool
Next.js • Prisma • PostgreSQL • Socket.io
Built an open-source Kanban-style project management application with real-time sync, drag-and-drop functionality, and team collaboration features. 2.5K+ GitHub stars.
DevMetrics Dashboard
React • D3.js • Node.js • Redis
Created a developer productivity dashboard that integrates with GitHub, Jira, and Slack to provide actionable insights on team performance and bottlenecks.