Sergio Pereyra | Enterprise Full-Stack Developer | Revenue-Driven Solutions Architect With 18 years of experience building scalable, high-performance platforms, I architect web solutions that directly impact the bottom line. I specialize in React, Next.js, Node.js, Python, WordPress, and SEO—delivering systems that handle massive traffic, rank high, and convert. Proven Track Record: Built a SaaS product generating $250K in 60 days Scaled applications to 50K+ concurrent users with zero downtime Optimized WordPress sites to 90+ PageSpeed scores with top Google rankings Maintained 5.00-star ratings across 100+ projects Top-Rated Plus on Upwork_Phone details not available. Sign in: https://www.twine.net/signup_) with 18,000+ billable hours Core Expertise: Full-Stack Engineering React, Next.js, Node.js, Python—custom, secure, enterprise-grade applications Scalable APIs and microservices architecture Blockchain integration and e-commerce platforms WordPress & WooCommerce Custom themes (Bricks, Elementor), plugin development Performance optimization for high-traffic environments (10K+ daily users) WooCommerce SEO for organic traffic and revenue growth SEO & Performance Technical + On-Page SEO integrated from day one Schema markup, Core Web Vitals optimization, sub-second load times Sites built to rank and convert Project Leadership Senior oversight with vetted team of 6 specialists (when needed) Direct collaboration—EST timezone, no middleman Multi-stakeholder project management, always on time and budget Why Partner With Me: I don't just solve technical problems—I architect solutions with ROI, scalability, and user experience at the core. You get direct access to me, a results-first approach focusing on minimal viable + scalable solutions, and enterprise-level reliability without the offshore agency feel. Whether you need a high-converting WordPress site, a React app that scales, or a full platform that drives revenue, I bring the technical expertise and business mindset to deliver measurable results.…Sergio Pereyra | Enterprise Full-Stack Developer | Revenue-Driven Solutions Architect With 18 years of experience building scalable, high-performance platforms, I architect web solutions that directly impact the bottom line. I specialize in React, Next.js, Node.js, Python, WordPress, and SEO—delivering systems that handle massive traffic, rank high, and convert. Proven Track Record: Built a SaaS product generating $250K in 60 days Scaled applications to 50K+ concurrent users with zero downtime Optimized WordPress sites to 90+ PageSpeed scores with top Google rankings Maintained 5.00-star ratings across 100+ projects Top-Rated Plus on Upwork_Phone details not available. Sign in: https://www.twine.net/signup_) with 18,000+ billable hours Core Expertise: Full-Stack Engineering React, Next.js, Node.js, Python—custom, secure, enterprise-grade applications Scalable APIs and microservices architecture Blockchain integration and e-commerce platforms WordPress & WooCommerce Custom themes (Bricks, Elementor), plugin development Performance optimization for high-traffic environments (10K+ daily users) WooCommerce SEO for organic traffic and revenue growth SEO & Performance Technical + On-Page SEO integrated from day one Schema markup, Core Web Vitals optimization, sub-second load times Sites built to rank and convert Project Leadership Senior oversight with vetted team of 6 specialists (when needed) Direct collaboration—EST timezone, no middleman Multi-stakeholder project management, always on time and budget Why Partner With Me: I don't just solve technical problems—I architect solutions with ROI, scalability, and user experience at the core. You get direct access to me, a results-first approach focusing on minimal viable + scalable solutions, and enterprise-level reliability without the offshore agency feel. Whether you need a high-converting WordPress site, a React app that scales, or a full platform that drives revenue, I bring the technical expertise and business mindset to deliver measurable results.WWWW…