Independent Full Stack Developer for SaaS Product development

We are looking for an experienced independent Full-Stack Developer to help us build and scale a high-performance, secure, and user-friendly web platform. This is not a simple CRUD application. We are looking for someone who understands scalable architecture, programmatic SEO, performance optimisation, security, cloud deployment, and large-scale dynamic websites. Core Technology Stack * Node.js * Next.js * PostgreSQL * AWS * Caching / Redis * Stripe integration * REST APIs * Git / GitHub What You Will Work On * Build and maintain a highly scalable web application capable of handling 100,000+ dynamic pages * Create dynamic/programmatic pages from CSV and structured data imports * Develop scalable database architecture and optimize PostgreSQL queries * Implement efficient caching strategies to improve performance and reduce database load * Build secure user registration, authentication, authorization, profiles, dashboards, and account management * Integrate Stripe for subscriptions, payments, billing, and plan management * Deploy and manage applications on AWS * Build APIs and backend services using Node.js * Develop frontend interfaces using Next.js with a strong focus on UX and performance * Implement programmatic SEO architecture including dynamic metadata, canonical URLs, internal linking, sitemaps, indexation controls, and scalable page generation * Optimise the application for speed, scalability, reliability, and large amounts of traffic/data * Implement proper security practices across frontend, backend, database, APIs, authentication, and payments * Monitor, troubleshoot, and improve production performance * Think beyond the obvious and suggest better technical solutions when you see opportunities Programmatic SEO Experience Is a MUST You should have real-world experience building websites where **thousands or hundreds of thousands of pages are generated dynamically from structured data**. You should understand how to build these pages without creating performance, duplicate-content, crawlability, indexing, or database problems. Experience with large-scale SEO websites, data-driven platforms, directories, marketplaces, or similar systems is highly valuable. We Are Looking For Someone Who * Has strong real-world experience, not just tutorial/project experience * Can work independently without needing constant technical direction * Understands architecture and can make good technical decisions * Thinks about scalability from day one * Has strong knowledge of AWS deployment and production environments * Understands caching and database optimization * Takes security seriously * Has strong attention to detail * Can identify problems before they become production issues * Can suggest ideas and improvements rather than simply implementing instructions * Writes clean, maintainable, and well-structured code * Is comfortable taking ownership of a feature from architecture → development → testing → deployment Important We are specifically looking for an independent developer, not an agency or a developer who needs a large team to complete the work. You should be comfortable taking ownership of the project and communicating directly with us. We value problem-solving ability and architectural thinking more than simply knowing a list of technologies. Bonus Experience Experience with any of the following is a major plus: * Large-scale B2B databases * Data scraping / data processing * Business directories * SaaS platforms * Subscription-based platforms * Large programmatic SEO websites * 100k+ page websites * Search/filter systems * Elasticsearch / OpenSearch * Redis * CloudFront / CDN * AWS Lambda / ECS / EC2 * CI/CD * Automated testing * SEO analytics and Google Search Console To Apply Please provide: 1. A brief introduction about yourself 2. Your experience with Next.js + Node.js + PostgreSQL + AWS 3. Examples of large-scale websites/applications you have built 4. Your experience with programmatic SEO 5. Examples of websites where you generated thousands or 100k+ dynamic pages 6. Your experience with Stripe and subscription systems 7. Your availability and expected weekly hours 8. Your hourly rate 9. Please share GitHub or examples of your previous work if available **Important:** In your application, start your proposal with **"SCALABLE"** so we know you have read the complete job description. We are looking for a long-term developer who can become a key technical contributor to the platform, not someone looking for a short-term project.