Our client is a fast-growing startup that is on a mission to change the deskless work experience. They created a management platform that allows to easily manage all operations, from scheduling to payroll. With over 3.8B deskless workers across the globe, the challenges and potential are endless. Product includes various features: scheduling and time tracking, task management, communication management, chat, knowledge base, help desk, HR & people management, recognition & rewards, documentation, training etc.We are looking for an experienced Senior Product Fullstack Developer, to further develop the management platform. You will build a product that customers love and use on a daily basis, a product that is fun to use, fast, reliable and scalable. You will tackle a wide array of problems from developing a UI that is responsive to the user and fun to choosing the right backend technologies to solve specific product use cases at scale.Requirements:5+ years of experience developing scalable applications using both frontend and backend technologies.5+ years of experience with Python.3+ years of experience with React, including State Management libraries like MobX, redux.Extensive hands-on experience with MongoDB and MySQL at an expert level.Deep expertise in message queues, especially RabbitMQ, for building scalable, message-driven systems.Experience both with AWS and AzureAbility to understand the pros and cons of different architecture decisions and choose the best option.Experience scaling services to millions of users.Understands the complexity of web technology, constraints, UI/UX.Startup mindset and a proactive, ownership-driven approach, experience in product companies will be a great advantage.At least B2 level of English.Readiness for occasional business trips to Lisbon are expected.Responsibilities:Lead the design, development, and maintenance of complex Python applications. Collaborate with product management and other stakeholders to define technical requirements and deliverables. Write clean, efficient, and self-documented code. Implement automation tests. Participate in code reviews to ensure code quality and maintainability. Monitor application performance and provide optimization recommendations. Stay up to date with the latest technologies and industry trends. Drive the continuous technological improvement process.