Python Full Stack Developer - Flask/FastAPI

Job Title: Python Full Stack Developer

Experience: 10 - 12 Years

Location: PAN India

Key Responsibilities:

Backend Development - Python:

• Strong hands-on experience in Python with advanced knowledge of Python programming concepts.
• Experience in developing and maintaining production-grade Python applications.
• Strong understanding of Object-Oriented Programming (OOP) and modular application design.
• Experience designing scalable, maintainable and reusable Python components.

Flask / FastAPI:

• Strong hands-on experience with Flask or FastAPI.
• Experience designing and developing RESTful APIs.
• Strong understanding of API architecture, request/response handling and API versioning.
• Experience implementing request validation and data validation.
• Experience integrating authentication and authorization mechanisms into APIs.
• Good understanding of background processing and asynchronous job patterns.
• Experience handling API errors and implementing standardized error responses.
• Experience implementing health-check and readiness endpoints.
• Experience building scalable and highly available backend services using Flask/FastAPI.
• Knowledge of API security, authentication tokens and integration with enterprise applications.

Third-Party and Native Library Integration:

• Experience integrating Python applications with third-party SDKs and external libraries.
• Experience working with native libraries or .NET-backed libraries from Python applications.
• Ability to understand and integrate external APIs, SDKs and enterprise platforms.
• Experience handling dependencies, compatibility issues and error scenarios during integrations.

File / Document Processing:

• Strong experience in complex file and document processing using server-side applications.
• Experience handling large files, streams and asynchronous file-processing workflows.
• Ability to design reliable processing mechanisms for long-running and resource-intensive operations.
• Experience with document parsing, transformation, validation or extraction workflows is preferred.

Asynchronous and Long-Running Jobs:

• Strong understanding of asynchronous programming and long-running job patterns.
• Experience designing background workers and asynchronous processing workflows.
• Ability to handle resource-intensive operations without blocking API requests.
• Experience implementing job status tracking, retries, failure handling and monitoring.
• Knowledge of queues, workers and distributed processing patterns will be an added advantage.

Frontend Development - ReactJS:

• Strong hands-on experience with ReactJS for modern web application development.
• Experience developing reusable and responsive UI components.
• Strong understanding of React components, hooks, state management and lifecycle concepts.
• Experience integrating ReactJS applications with Python REST APIs.
• Ability to consume, process and display data from backend APIs.
• Experience with frontend validation, error handling and asynchronous API calls.
• Good understanding of JavaScript/TypeScript, HTML5 and CSS3.
• Experience developing enterprise-level single-page applications using ReactJS.
• Understanding of frontend performance optimization and reusable component architecture.

Azure Cloud:

• Experience working with Microsoft Azure cloud services, including Azure Kubernetes Service (AKS), Azure App Service, Azure Blob Storage, and Azure SQL Database.
• Deployment and hosting of Python-based applications on Azure.
• Experience containerizing applications and deploying them to AKS.
• Understanding of application configuration, secrets and environment management in Azure.
• Experience integrating applications with Azure storage and database services.
• Knowledge of cloud monitoring, logging, scaling and troubleshooting.
• Understanding of highly available and scalable cloud application architecture.

Technical Skills:

• Mandatory: Python (Advanced), Flask or FastAPI (Strong), ReactJS (Strong), Python Full Stack Development (8 Years), REST API Development, Object-Oriented Programming, Concurrency / Multiprocessing, Asynchronous Programming, File / Stream Processing, Exception Handling & Structured Logging, API Authentication & Authorization, Background Processing, Long-Running Job Patterns, Azure AKS, Azure App Service, Azure Blob Storage, Azure SQL.