Full Stack Developer – Software Agency Website + Lead Gen Tools

Overview We're building the digital presence for a growing software agency, a clean, fast, high-converting website paired with a few smart interactive tools designed to qualify leads before they ever hit our inbox. We need someone who can own this end-to-end: architecture, development, deployment, and polish. This isn't a template job. We want someone who genuinely cares about quality output. English Proficiency Requirement All communication, documentation, and handoff notes must be in clear professional English (C1+ equivalent). Non-negotiable. What You'll Be Building Core Website Pages Home Services Portfolio / Work Samples About Us Contact + Discovery Call Booking Every page must be fully responsive, SEO-ready, fast, and visually sharp. Mobile UX is a priority, not an afterthought. Feature 1: AI Chat Widget A persistent assistant embedded across the site that: Answers questions about services and pricing Pre-qualifies leads through conversation Collects contact details naturally Nudges interested visitors toward booking a call Feature 2: Project Estimator Wizard A guided multi-step tool where a visitor enters: What they want built Their rough budget Their ideal timeline The output: a personalized summary, a suggested tech direction, and a soft estimate range, designed to make the discovery call more focused and productive. Feature 3: Website Audit Tool Visitors paste in their URL and receive: A basic performance snapshot Detectable tech stack signals Actionable improvement suggestions This doubles as a lead magnet, people who use it become warm prospects. Preferred Tech Stack Next.js 14 (App Router) Tailwind CSS + shadcn/ui Supabase (database + auth) Vercel (hosting + CI/CD) Resend (transactional email) Plausible or PostHog (analytics) GitHub (version control) If you have strong reasons to suggest alternatives, we're open to the conversation. Deliverables Production-ready codebase on GitHub Deployment to Vercel with environment variables configured All three interactive features functional and tested Sitemap, robots.txt, and basic on-page SEO implemented Lightweight technical documentation covering architecture and key integrations Post-launch handoff call Who We're Looking For You should be comfortable with: Next.js / React and modern full stack patterns Supabase or similar Postgres-backed BaaS Building for performance, not just functionality Clean, readable code that a future developer can maintain Communicating status and blockers without being chased Bonus if you bring: Prior agency or consultancy website experience Eye for UI/UX detail Familiarity with AI API integrations (OpenAI, Anthropic, etc.) CI/CD and DevOps basics To Apply Please include: Two or three live projects you've built, websites or SaaS products preferred Your proposed approach or stack adjustments (if any) Realistic timeline estimate from kickoff to launch Current availability and weekly capacity A short paragraph on why this specific project is a good fit for you Lengthy proposals aren't necessary. We value clarity over volume, show us you understand the scope and that you've done work like this before.