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John S.

John S.

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Freelancer Overview

JOHN SAMUEL Full Stack Engineer · React · Next.js · Django · Supabase [email protected] +234 8067954912 Lagos, Nigeria LinkedIn GitHub Portfolio P R O F E S S I O N A L S U M M A R Y Impact-driven Full Stack Engineer with 4+ years of hands-on experience building scalable web applications across the entire stack. Specializes in React/Next.js frontends and Python/Django/Supabase backends, with a strong track record of delivering measurable improvements in performance, system reliability, and user experience. Comfortable in fast-paced, self-directed environments. T E C H N I C A L S K I L L S Frontend React, Next.js, TypeScript, JavaScript (ES6+), HTML5, CSS3, TailwindCSS, Framer Motion, ShadCN/UI, PWA, Context API, Zustand Backend Python, Django, Supabase (PostgreSQL), RESTful APIs, WebSockets, Real-time Systems, RBAC, OWASP Security Best Practices Data & ML NumPy, Pandas, Scikit-learn, Data Visualization DevOps Git, GitHub, GitHub Actions, Vercel, CI/CD, Lighthouse Audits, Performance Optimization, SEO P R O F E S S I O N A L E X P E R I E N C E Full Stack Engineer | NeXa Esports Jul 2025 – Sep 2025  Architected a real-time gaming PWA using React, TypeScript, and Supabase, supporting 10,000+ concurrent users.  Reduced application latency by 40% through optimized WebSocket integration, significantly improving real-time responsiveness.  Elevated Lighthouse performance scores from 68 to 92 by implementing lazy loading, image optimization, and critical CSS techniques.  De