Senior Full-Stack Developer (Python + React) to $6500 Offline

We are seeking a Senior Full-Stack Developer with strong English and expertise in Python backend development and React frontend technologies for one of our projects. The ideal candidate will have at least 5 years of professional experience building scalable systems, designing APIs, and creating dynamic user interfaces. This role offers an exciting opportunity to shape robust, enterprise-grade solutions in a fast-paced environment.

Key Responsibilities:
Backend:
• Design and implement high-performance APIs using Python (FastAPI/Pydantic v2/SQLModel/Celery).
• Architect scalable backend systems optimized for regulatory compliance and high concurrency.
• Develop and maintain robust database schemas using PostgreSQL or similar.
• Ensure application security by implementing authentication, authorization, and data protection mechanisms.
• Optimize server-side logic for performance, scalability, and reliability.
• Integrate third-party services via APIs and manage data flows securely.
Frontend:
• Build responsive, mobile-first web applications using React and TypeScript.
• Create reusable components and libraries for future use while ensuring high-quality UI/UX standards.
• Optimize web applications for maximum speed and scalability across devices.
• Ensure cross-browser compatibility and accessibility compliance.
• Collaborate with designers to translate mockups into interactive user interfaces.
Full-Stack:
• Work across the stack to ensure communication between frontend and backend systems.
• Debug and troubleshoot issues across the entire stack to maintain application stability.
• Participate in architectural decisions to improve system performance and scalability.
Infrastructure & Deployment:
• Containerize applications using Docker.
• Monitor system health, troubleshoot production issues, and optimize infrastructure for high availability.

Requirements (Must Have):
• 5+ years of commercial experience as a Full-Stack Developer
• Fluent English — must be able to communicate confidently with international teams
• Python 3 with FastAPI in production
• Pydantic v2 and async programming (async/await)
• Strong knowledge of PostgreSQL: schema design, query optimization
• Experience with SQLModel or SQLAlchemy
• Production experience with React and TypeScript
• Working knowledge of TailwindCSS or similar CSS frameworks
• Experience with TanStack Query (React Query)
• Confident use of Docker in development workflows
• Hands-on experience with AWS services: ECS, S3, RDS
• Solid understanding of Git workflows in team environments

This is project based role (long term).