Senior Full Stack Engineer - React & Python

Our client is a technology company focused on transforming education through innovative digital platforms. They build scalable, user-centred solutions that empower students and educators. The organisation values technical excellence, collaborative problem-solving, and continuous improvement, expanding their engineering team in Krakow.

• 10+ years of professional software development experience.
• Strong expertise in React, TypeScript, and JavaScript for frontend development.
• Proven experience designing and building Python backend APIs.
• Solid understanding of microservices architecture and distributed systems.
• Experience with asynchronous processing frameworks (Celery, SQS, or similar).
• Proficiency with both NoSQL (DynamoDB) and relational (PostgreSQL) databases.
• Experience implementing CI/CD pipelines and deployment automation.
• Knowledge of observability practices: logging, metrics, tracing, and alerting.
• Familiarity with containerisation and orchestration tools.
• Strong communication skills and ability to collaborate across teams.
• Experience contributing to architectural decisions and mentoring other engineers.

• Build and ship production React features for student-facing learning flows and teacher dashboards.

• Design and maintain Python backend APIs handling asynchronous processing and distributed services.

• Work across both NoSQL and relational databases, integrating AI and LLM-based components.

• Contribute to architecture decisions and raise code quality standards through reviews and documentation.

• Set up and improve CI/CD pipelines, observability, and deployment automation.

• Build and ship React features for student dashboards and learning flows using TypeScript and JavaScript.

• Write clean, maintainable code across the frontend codebase with strong focus on accessibility and performance.

• Manage application state using Redux, Zustand, or Context API.

• Write unit and integration tests for frontend components and user flows.

• Implement asynchronous processing and queue-based communication between services using SQS and Celery.

• Design data access patterns across NoSQL (DynamoDB) and relational (PostgreSQL) databases.

• Integrate backend services with internal systems, external APIs, and AI/LLM-based components.

• Build and maintain operational tooling for day-to-day platform tasks.

• Contribute to observability by implementing logging, metrics, tracing, and alerting across distributed services.

• Raise code quality standards through thorough code reviews and clear documentation.