Back to SearchSenior Full-stack Developer - Python/FastAPI & React/TypeScript
Remote in Poland
Python.Web& 14 others
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We are creating a new product in a multi-cloud setup and are seeking a Senior Full-stack Developer to drive backend and frontend delivery. You will build with Python/FastAPI, React/TypeScript, PostgreSQL, OpenSearch, and heavy Databricks usage while optimizing performance. Apply today.
Responsibilities
- Create and maintain web applications with Python/FastAPI and SQL
- Architect APIs and integrations to support high-load database workloads
- Improve query performance throughout production systems
- Deliver UI work using TypeScript and React
- Apply GenAI engineering tools to streamline and improve developer workflows
- Partner with teammates while owning and completing independent assignments
- Share progress proactively with stakeholders and the wider team
- Drive feature ownership and add value beyond ticket-by-ticket execution
- Deliver outcomes despite ambiguity in a fast-paced startup environment
Requirements
- Extensive experience of 5+ years delivering production systems with Python, FastAPI, and SQL
- Deep understanding of web app development, API architecture, and integration patterns
- Demonstrated ability to manage high-load databases and improve query performance
- Comfort with TypeScript and React plus willingness to work end-to-end full-stack
- Hands-on use of GenAI engineering tools, ideally Claude Code
- Clear communication skills with a proactive, ownership-oriented approach
- Ability to handle uncertainty and execute without constant direction in a transparent, fast-moving startup environment
- English proficiency at B2 (Upper-Intermediate) level or higher
Nice to have
- Experience across TypeScript, React, Next.js, Storybook, Playwright, Radix UI, and Zustand
- Working knowledge of PostgreSQL and OpenSearch
- Exposure to cloud platforms, Infrastructure as Code, and supporting tools
- Experience handling data via PySpark and SparkSQL
- Client-facing experience