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Senior Full Stack Engineer (Python + React + SQL)

Remote in Poland
Python.Core& 9 others
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We are seeking a skilled and versatile Senior Full Stack Engineer to join our dynamic development team. As a Senior Full Stack Engineer, you will be responsible for designing, developing, and maintaining end-to-end software applications and systems, from frontend to backend. Your expertise in programming languages, databases, and web technologies will be crucial in delivering high-quality and scalable end-to-end solutions.

Responsibilities
  • Design, implement, and optimize responsive and user-friendly web interfaces using the latest UI/UX technologies
  • Develop and maintain the server-side components of software applications
  • Monitor and optimize the performance, scalability, and reliability of backend systems
  • Collaborate with cross-functional teams, including data engineers, product managers, and designers, to ensure seamless integration of frontend and backend components
  • Write clean, efficient, and well-documented code following best practices and coding standards
  • Use AI coding agents like Cursor, Claude Code & Codex to support development workflows
  • Design, implement, and optimize database structures and queries for efficient data storage and retrieval
  • Perform thorough testing and debugging to identify and resolve issues or bottlenecks
  • Stay updated with the latest industry trends and technologies and propose improvements to enhance backend architecture and development processes
  • Participate in code reviews to maintain code quality and mentor junior developers
  • Collaborate with DevOps engineers to deploy and maintain applications in production environments
  • Provide technical guidance and support to team members as needed
Requirements
  • 5+ years of experience in full-stack development
  • Proficiency in Python, FastAPI, React, and TypeScript
  • Expertise in agentic coding tools such as Claude Code and Cursor
  • Familiarity with AWS
  • English proficiency at B2 level or higher
Nice to have
  • Background in financial services