Senior Python Developer (Fullstack, BE-Heavy)

About us: Talent has no borders. Proxify's mission is to connect top developers around the world with opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction. 🙂 Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives. Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success. The Role: We are looking for a Senior Python Developer (Fullstack, Backend-Heavy) to join one of our high-growth client teams as a core software architect. In this role, you will be responsible for designing, scaling, and maintaining high-throughput backend systems while having the fullstack dexterity to build out the corresponding frontends. You will handle everything from high-performance asynchronous API design and background task orchestration to state management on the client side. This is an ideal role for an engineer who loves the clean syntax and processing capabilities of Python but values the completeness of delivering a seamless end-to-end user experience. What we are looking for: 5+ years of production experience with modern Python, with a deep understanding of advanced concepts (metaclasses, generators, decorators) and asynchronous programming (asyncio). Mastery of FastAPI for high-performance microservices or Django (including Django REST Framework) for robust, feature-rich monolithic web applications. Solid, hands-on experience with modern frontend development using TypeScript and React.js (or Vue.js) to connect backends to reactive interfaces. Strong background in handling long-running background tasks and event-driven processing using Celery, Redis, or RabbitMQ. Deep knowledge of relational databases (PostgreSQL preferred) including query profiling, optimization, indexing, and object-relational mapping (SQLAlchemy or Django ORM). Experience containerizing applications with Docker and deploying services into cloud infrastructure (AWS or Azure) via automated CI/CD pipelines. Dedication to writing highly testable code, utilizing pytest for comprehensive unit and integration test coverage. Nice-to-have: Familiarity with vector databases (Pinecone, ChromaDB) or integrating LLM workflows. Experience with frontend state management libraries (Redux Toolkit, Zustand). Knowledge of Infrastructure as Code tools like Terraform. Understanding of clean architecture and domain-driven design (DDD). Responsibilities: Design, implement, and deploy robust Python backends alongside clean, responsive frontend applications. Design self-documenting, clean, and secure RESTful or GraphQL APIs that serve as predictable contracts for the frontend. Profile, benchmark, and optimize Python applications to eliminate performance bottlenecks and improve memory management. Conduct detailed, constructive peer code reviews, championing type-hinting, PEP 8 standards, and structural best practices. Collaborate closely with Product Managers, UI/UX designers, and cross-functional engineers to break down complex requirements into technical milestones. What we offer: Get paid, not played No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options. Predictable project hours Enjoy a harmonious work-life balance with consistent 8-hour working days with clients. Flex days, so you can recharge Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify. Career-accelerating positions at cutting-edge companies Discover exclusive long-term remote positions at the world's most exciting companies. Hand-picked opportunities, just for you Skip the typical recruitment road