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Experienced Python Developer - Contractor Role (Remote - Full Time) at Stack Builders. Stack Builders is a top-quality international software development consultancy dedicated to delivering pragmatic solutions for clients worldwide. We look forward to transforming complex challenges into innovative, maintainable, scalable software systems through collaboration and curiosity.. We’re looking for an Experienced Python Developer (Contractor) with strong proficiency in Django and Flask to join our engineering team on an ongoing project. You’ll collaborate directly with the client to enhance and scale a tracking and vision-based platform that integrates computer vision with modern Python web frameworks. This opportunity is ideal for a senior professional who thrives in agile environments, values autonomy, and is driven to deliver maintainable, scalable, and high-impact software solutions.. We're proud to be one of the Great Places to Work in Latin America. We cultivate a diverse, inclusive culture centered on technical excellence and continuous improvement.. Key Responsibilities. Design, develop, and maintain backend systems using Python, Django, and Flask.. Build and optimize RESTful APIs to support real-time tracking and analytics.. Collaborate with frontend engineers to ensure seamless data integration and user experience.. Implement automated testing, CI/CD pipelines, and best coding practices.. Contribute to infrastructure setup and containerization (Docker, Nix, Kubernetes).. Participate in daily stand-ups and proactively communicate with stakeholders.. 5+ years of professional experience in Python development.. Proven expertise with both Django and Flask frameworks in production environments.. Working knowledge of HTML, JavaScript, and CSS for light frontend integration.. Experience designing and maintaining RESTful APIs and relational databases (PostgreSQL/MySQL).. Familiarity with Git, agile development methodologies, and remote collaboration tools.. Strong communication skills, accountability, and self-direction.. Bachelor’s degree in Computer Science (required).. Availability to overlap 4 hours with the GMT-5 timezone. Nice to Have:. Experience with Vision Engineering. Familiarity with Docker, Kubernetes, or Nix environments.. Exposure to Swift for iOS integrations.. Knowledge of cloud infrastructure, microservices architecture, or serverless patterns.. The projected . hourly range for this position is from $47.00 to $57.00/ hour, . determined by the candidate's interview outcome, skills, experience, education, and alignment with market data.. Company Location: Argentina.