Summary: Seeking a Senior Python Backend Developer with strong expertise in SQLAlchemy and relational databases to build and maintain secure, scalable backend services and integrate APIs. Highlights: 1. Opportunity for technical depth and meaningful backend work 2. Professional, structured, and collaborative engineering culture 3. Long-term collaboration opportunity **Senior Python Backend Developer \| SQLAlchemy** **Location:** Remote **Job Type:** Freelance / Contract **Schedule:** Full\-time (40 hours per week) **Start Date:** January 2026 **Compensation:** * **$25 USD per hour** * **$1,000 USD per week** (based on 40 hours) * Hourly payment based on time worked Role Summary We are looking for a **Senior Python Backend Developer** with strong expertise in **SQLAlchemy and relational databases** to join a remote, international engineering team. This is a **long\-term freelance opportunity**, ideal for developers seeking stability, technical depth, and meaningful backend work. You will be responsible for building and maintaining **secure, scalable backend services**, designing database models, and integrating APIs with frontend applications. Responsibilities * Design, develop, and maintain backend services using **Python**. * Build and optimize database models using **SQLAlchemy**. * Write efficient and secure SQL queries (PostgreSQL and SQLite). * Develop and maintain **RESTful APIs**. * Collaborate with frontend developers and other backend engineers. * Participate in code reviews, pair programming, and agile ceremonies. * Ensure scalability, performance, and security of backend systems. * Document work and communicate progress clearly through task boards. Required Experience * **Advanced English** (written and spoken). * Proven experience as a **Python Backend Developer** or **Backend Engineer**. * Strong expertise in **SQLAlchemy** and relational database design. * Solid knowledge of **SQL**, **PostgreSQL**, and **SQLite**. * Experience with modern Python web frameworks (FastAPI, Litestar, Starlette, or similar). * Strong understanding of **REST APIs** and backend architecture. * Knowledge of **web application security and scalability**. * Experience using **Git** in collaborative environments. * Availability to work **40 hours per week**. * Excellent communication skills in remote teams. * Willingness to sign a Non\-Disclosure Agreement (NDA). Nice to Have * Experience working with typed Python codebases. * Familiarity with legacy backend systems and migrations. * Interest in software architecture, open source, and agile development. * Previous experience in long\-term remote or distributed teams. What We Offer * Competitive freelance rate of **$25 USD per hour**. * Consistent workload of **40 hours per week**. * Fully remote work environment. * Long\-term collaboration opportunity. * Professional, structured, and collaborative engineering culture. If you are a **Python expert with strong SQLAlchemy experience** looking for a **remote freelance backend role** with long\-term stability, **apply through Indeed** and include your GitHub profile or portfolio Tipo de puesto: Tiempo completo Sueldo: $70,000\.00 al mes Lugar de trabajo: Empleo remoto