Senior Python Cloud Developer

At Grape Up, we’re all about leveraging technology to drive software innovation. We’re on the lookout for a talented Senior Python Developer to join us in this mission. We partner with industry leaders in the automotive and aviation to build sophisticated Data & Analytics platforms that support production machine learning and AI use cases. As part of our team, you’ll have the opportunity to design and implement mission-critical services that handle everything from AI model governance to MCP gateway. Your work will integrate with key systems, forming the backbone of an entire AI enterprise ecosystem. Responsibilities • Design and build cloud-native applications using Python with FastAPI and AWS services • Integrate with various AI cloud services (like AWS Bedrock, Azure Foundry or Google Vertex AI) • Design and operate modern AI infrastructure that brings frontier LLMs, MCP, and agentic capabilities into the hands of every developer and user in the company. • Ensure the code is robust, clean, and well-tested with unit and integration tests • Participate in code reviews, share knowledge, and collaborate with an international, cross-functional team • Be an active participant in agile ceremonies and drive every sprint to success • Drive team efficiency by bringing in effective tools, refining processes, and offering technical mentorship Requirements • Proficiency in Python for web development (5+ years) • Very good knowledge of REST API • Hands-on experience with unit and integration testing, and mocking libraries • Practical experience with AWS services (e.g. Lambda, S3, API Gateway, DynamoDB) • Very good knowledge of Terraform • Very good understanding of Continuous Integration processes and their importance • Very good understanding of software development methodologies and agile • Ability to gather and interpret business requirements and UX aspects effectively • Good command of English and Polish (B2+/C1) • Strong communication skills Nice to have • Experience with microservices architecture, including design, implementation, and maintenance • Experience with AI platforms and services • Knowledge of building tools (Webpack) • Experience with writing automation tests Benefits of joining Grape Up • Non-corporate work environment among experienced engineers • Individual growth & development plan supported by cyclical feedback sessions • Access to knowledge platforms (e.g. Pluralsight) • Equipment of your choice • Financing of conferences, external trainings, and certifications • Language lessons (English, German and Polish for foreigners) • LuxMed private medical care • Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge • Employee referral program • Rewards for the success of the month and year awarded by our employees • Special rewards for your years with us (G-Man) • Integration activities