Mofasser H.

Hi, I’m Mofasser. I’m a full-stack AI SaaS developer with 5+ years of experience building production web, mobile, CRM, automation, and AI-enabled applications. I help startups, founders, and teams build, fix, and scale real products using modern frontend frameworks, backend APIs, relational and document databases, mobile app frameworks, AI agents, RAG, and third-party API integrations. How I typically work: - Audit and bug fixing: I understand the existing codebase, reproduce the issue, find the root cause, fix it, and document what changed. - Feature development: I implement frontend, backend, database, API, permissions, and edge cases needed for the feature to work end to end. - AI workflows: I build LLM integrations, RAG and knowledge-base systems, OCR and document-processing flows, tool-calling agents, and automation around real business workflows. - MVP and product build: I keep the scope lean, ship the core flow first, then improve based on testing and real user feedback. - Ongoing support: I improve performance, reliability, UX, integrations, and maintainability over time. Recent work includes: - AI assistant and chat workflows - RAG and knowledge-base systems - invoice OCR and document-processing automation - CRM automation with leads, messages, orders, invoices, and workflows - SaaS dashboards, admin panels, and permission-based systems - mobile apps for iOS and Android - payment, email, messaging, webhook, and API integrations My core stack: React, Next JS, TypeScript, Node JS, backend API development, Python, FastAPI, PostgreSQL, MongoDB, Prisma, Drizzle, React Native, Docker, cloud deployment, REST APIs, tRPC APIs, WebSockets, MQTT, and Socket io. I also use AI-assisted development tools and parallel workspace workflows to move faster, but I personally review architecture, security, edge cases, tests, and code quality before shipping. If you need someone who can join an existing project, understand the architecture, fix issues, build new features, and take ownership across frontend, backend, database, AI workflows, and integrations, I’d be happy to help.