Job Title: Senior Python Developer Job Type: Full-time, Contractor About Us: Our mission at micro1 is to match the most talented people in the world with their dream jobs. If you are looking to be at the forefront of AI innovation and work with some of the fastest growing companies in Silicon Valley, we invite you to apply for a role. By joining the micro1 community, your resume will become visible to top industry leaders, unlocking access to the best career opportunities on the market. Job Summary: We’re looking for a Senior Python Developer who thrives in building scalable backend systems and real-world products. You’ll play a key role in architecting, developing, and deploying microservices-based APIs using Python, FastAPI, and WebSockets, while collaborating closely with DevOps, UI/UX, and Machine Learning teams. If you’re passionate about shipping high-impact features, solving infrastructure and scalability challenges, and working cross-functionally in a fast-paced environment, we’d love to hear from you. Key Responsibilities: • Design, develop, and maintain high-performance RESTful and WebSocket APIs using FastAPI and Python. • Architect and implement backend services in a microservices environment with focus on containerization (Docker/Kubernetes) and cloud-native deployment (AWS, GCP, or Azure). • Collaborate across teams — from ML Engineers to Frontend and DevOps — to deliver reliable and production-grade services. • Work on backend systems that interact with relational, NoSQL, and vector databases, optimizing for performance and scale. • Lead efforts in production deployment, observability, and runtime optimization to support growing product usage (10k+ users). • Build and manage APIs for integrating ML models and other dynamic components into customer-facing applications. • Implement robust unit/integration tests and participate in code reviews to maintain code quality and reliability. • Proactively drive technical architecture discussions and identify areas for system and process improvements. Required Skills and Qualifications: • 5+ years of professional experience in backend software development, with a proven record of shipping production-grade services. • Strong proficiency in Python, especially building APIs with FastAPI (or Flask/Falcon with migration experience). • Solid understanding of WebSockets and asynchronous programming in Python. • Experience designing and deploying systems in cloud-native environments, using Docker, Kubernetes, and CI/CD pipelines. • Hands-on experience working with PostgreSQL, MySQL, MongoDB, Redis, and optionally vector stores. • Proven ability to scale applications in production to support thousands of concurrent users. • Strong communication and collaboration skills — comfortable working with cross-functional teams across Engineering, Data, ML, and Product. • Experience building products from 0→1 or improving existing systems at scale.