Harsh Gupta_

Leadership & Platform

• Joined as a frontend engineer in an 18–20 person tech team; through successive downsizing, took over the platform and now lead the 4-member web team, mentoring interns, across web, mobile, backend, and AWS for a high-traffic e-commerce site (5M+ monthly impressions).
• Migrated legacy JavaScript codebases to TypeScript, upgraded the storefront from Next.js 10 to 16 (Zod, TanStack Query), and rebuilt the OpenCart admin panel in Next.js; reached 90+ PageSpeed scores and cut bundle size by ~15–25%.
• Resolved 200+ npm security vulnerabilities across the website, React Native app, and backend.
• Consolidated storefront, API, cron jobs, and admin into a Turborepo monorepo, introduced Drizzle ORM on MySQL, and replaced manual server deployments with GitHub Actions CI/CD pipelines.
• Made Strapi the central CMS: powered dynamic homepage content for web and mobile, migrated the WordPress blog to Strapi and Next.js (improving security and cutting bandwidth), and replaced a third-party SEO tool.
• Cut monthly AWS spend from ~$3K to ~$1.5–2K by designing the edge caching strategy: tiered CDN cache policies per page type, a CloudFront cache key that ignores cookies and tracking params, path purges on CMS publish, Redis response caching at the API, and a Lambda image pipeline serving resized WebP/AVIF.
• Trimmed First Load JS on every page by deferring the ~290 KB Sentry SDK to browser idle time and removing ~131 KB of duplicated Zod from the shared client chunk.
• Built observability where only CPU monitoring existed: Sentry for application errors and Node process monitoring, plus Grafana Alloy shipping metrics and logs to Grafana dashboards, bringing production errors down to near zero.

Mobile (React Native)

• Led modernization of the React Native app: fixed security vulnerabilities, migrated to TypeScript, TanStack Query, and NativeWind to match the web stack, and added automated tests.
• Reduced app size by 10 MB by moving static assets to an S3-backed CDN, tree shaking, and removing unused libraries; added over-the-air (OTA) updates via Cloudflare R2 to ship fixes without app store releases.

Group Companies

• Build and ship features for group brands: ongoing development of Woggles.in (D2C eyewear e-commerce) and project work for Lastcode AI, the group's custom software and cloud services company.

AI-Assisted Engineering

• Introduced spec-driven development (OpenSpec) and AI-assisted test-driven development using Claude Code, Cursor, Antigravity, MCP servers, and Agent Skills, increasing feature delivery speed 4–5x; added Vitest and Playwright testing to web, mobile, and backend repositories.
• Built @beyoung/skills, an internal package of 50+ AI agent skills with a CLI that syncs profile-based subsets (core, storefront, mobile, ERP) into the company's other repositories.

• Delivered 3–4 client projects end to end with Next.js and Strapi, including a luxury holidays travel platform, a government portal, and a platform for a US-based emergency-services company.
• Built reusable, CMS-driven components and page sections in Strapi, letting client teams update content, packages, and pages without developer involvement.
• Rebuilt the company's own website and internal projects on a modern stack, migrating UI from MUI to Tailwind CSS and shadcn/ui, with a shared component library documented in Storybook.
• Turned complex Figma designs into responsive, accessible interfaces with GSAP and Framer Motion animations, using AI-assisted development (v0 and GitHub Copilot) to ship faster and helping teammates adopt it.

• Built UI and functional features in React for POS Register, the company's primary client product (a WooCommerce POS plugin), and HTML/CSS/JS frontends for POS Hub (.NET).
• Refactored ~50,000 lines of legacy CSS into ~10–20K lines of modular Sass (60–80% reduction), making the Register UI easier to maintain and keep consistent.
• Built HTML, CSS, and JavaScript templates for the POS WordPress plugin, and designed product UI in Figma and marketing banners in Canva.
• Redesigned and rebuilt the company's website and built the website for its new venture, in React and Tailwind CSS with Framer Motion animations.