Senior Full Stack Web Developer – Website, SaaS & Web Application Development

We're looking for an experienced Senior Full Stack Web Developer to help us build and improve a modern website and web application. This isn't just a frontend website project. We need someone who can handle the complete stack, from a clean, responsive user interface and frontend development to backend architecture, databases, APIs, authentication, integrations, and deployment. We're starting with a focused first phase, with the goal of building a solid foundation that can be expanded over time. What You'll Work On - Build responsive, modern websites and web application interfaces - Develop frontend features using React, Next.js, TypeScript, JavaScript, HTML, CSS, and Tailwind CSS - Build backend services and business logic using Node.js / Express.js - Design and integrate REST APIs and third-party APIs - Work with PostgreSQL, MySQL, MongoDB, or similar databases - Design database schemas, relationships, queries, and optimization - Implement user authentication, authorization, RBAC, OAuth, and JWT - Integrate external services and APIs - Build forms, dashboards, user accounts, and dynamic application features - Handle server-side logic and background processes - Implement real-time functionality where required - Improve website and application performance - Debug issues and implement technical improvements - Test features across modern browsers and devices Architecture & Advanced Development Experience with the following is highly valued: - SaaS application development - Scalable web application architecture - Multi-tenant applications - Microservices and modular architecture - Event-driven architecture - WebSockets and real-time applications - Redis and caching - GraphQL - Background jobs and queues - Serverless functions - API security and rate limiting - Performance optimization - Automated testing and error handling Cloud & Deployment Experience with modern deployment and infrastructure is a plus: - AWS - Vercel - Docker - Git / GitHub - CI/CD - AWS Lambda - Amazon S3 - CloudFront - Cloud databases - Serverless architecture - Monitoring, logging, and application security Integrations The application may require integrations with external services such as: - Payment platforms - CRM systems - Email services - Automation platforms - AI / LLM APIs - Analytics tools - REST or GraphQL APIs Experience with Stripe, OpenAI API, Supabase, Firebase, Twilio, webhooks, and third-party API integrations is a plus. What We're Looking For We're looking for a developer who can take ownership of the technical aspects of the project rather than simply completing individual tasks. You should be comfortable making decisions around frontend development, backend development, database architecture, API design, security, performance, scalability, and deployment. Strong communication skills and clean, maintainable code are important. To Apply Please include the following in your proposal: - 2–3 relevant websites or web applications you've worked on - Your role and contributions to each project - Frontend and backend technologies used - Database technologies and API integrations - Any challenging features you implemented Experience with SaaS platforms, marketplaces, dashboards, AI-powered applications, payment systems, or other complex web applications is a plus. We're starting with a focused first phase and are looking for a developer who can help build a strong technical foundation for future growth.