Senior Python Engineer with React

O projekcie: What will you do? You will build and evolve scalable web applications in Python and work across the stack with React to deliver high-quality features. You will design data solutions, develop robust APIs, and collaborate closely with the team to ship reliably using CI/CD and automated testing, with an option to explore GenAI use cases. We offer - Openness to hybrid work 4 days a month from our client office (Kraków),- Working in a highly experienced and dedicated team.- Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.).- Online training and certifications.- Access to e-learning platform.- Mindgram wellbeing platform.- Social events. Wymagania: - Strong Python engineering experience.- Hands-on experience with FastAPI or similar Python web frameworks.- Experience building web UIs with React.- Solid understanding of RESTful API design and backend development.- Practical SQL skills and experience with PostgreSQL.- Experience with Redis or other NoSQL solutions.- Experience with Docker and container-based development.- Experience with Kubernetes or strong motivation to learn it quickly.- Experience working with AWS in production or near-production environments.- Experience with CI/CD pipelines and automated testingNice to have - Experience with PGVector or vector databases.- Experience building GenAI applications using LangChain.- Experience integrating or using OpenAI APIs or similar LLM providers.- Experience with modern observability tooling such as logging metrics and tracing.- Experience with performance tuning and scalability for high-traffic systems Codzienne zadania: - Develop scalable web applications using Python with FastAPI. - Build user-facing functionality and work across the stack with React. - Design and optimize relational and non-relational databases including PostgreSQL and Redis. - Implement vector search solutions using PGVector where applicable. - Develop and maintain RESTful APIs and backend services. - Work with AWS services to deploy and operate applications. - Containerize services using Docker and orchestrate workloads with Kubernetes. - Apply CI/CD practices and maintain automated test suites. - Collaborate with engineers and stakeholders to deliver increments end to end. - Explore or contribute to GenAI-enabled features using tools such as LangChain and OpenAI APIs