BACKEND DEVELOPER -PYTHON

Job Title: Backend Developer (Python / FastAPI) Location: Chennai (Onsite) Experience: 5+ Years Employment Type: Full-Time Notice Period: Immediate Joiners or Up to 15 Days Job Summary We are seeking an experienced Backend Developer (Python / FastAPI) to design, develop, and maintain scalable, secure, and high-performance backend applications. The ideal candidate should possess strong expertise in Python, FastAPI, API development, database design, and cloud-native architectures. Experience in building enterprise-grade applications within fintech or other regulated industries is highly desirable. Key Responsibilities • Design, develop, and maintain backend applications using Python and FastAPI. • Build secure, scalable, and high-performance RESTful APIs, WebSockets, and microservices. • Design, optimize, and maintain databases using PostgreSQL, MySQL, or MongoDB. • Implement authentication, authorization, and secure coding practices using JWT, OAuth2, encryption, and industry security standards. • Optimize application performance, scalability, and reliability. • Develop clean, maintainable, and well-documented code with comprehensive unit and integration tests. • Collaborate with Frontend, DevOps, QA, and Product teams in Agile development cycles. • Deploy, monitor, troubleshoot, and support production environments. • Participate in code reviews and contribute to architecture and technical design discussions. Required Skills & Experience • 5+ years of experience in backend software development. • Strong proficiency in Python and the FastAPI framework. • Hands-on experience in developing REST APIs, WebSockets, or gRPC services. • Strong understanding of PostgreSQL, MySQL, or MongoDB, including schema design and query optimization. • Experience with SQLAlchemy, ORM frameworks, and asynchronous programming (asyncio). • Good understanding of microservices architecture and distributed systems. • Experience with Docker, Kubernetes, CI/CD pipelines, and cloud platforms such as AWS, Azure, or Google Cloud Platform (GCP). • Familiarity with message brokers such as RabbitMQ, Kafka, or Redis is an advantage. • Strong knowledge of secure coding practices, authentication mechanisms, and API security. • Experience with version control systems such as Git. • Understanding of Agile/Scrum development methodologies. • Bachelor's degree in Computer Science, Information Technology, or a related field. Preferred Skills • Experience working in FinTech, Banking, or other regulated industries. • Knowledge of API gateways, service mesh, and event-driven architectures. • Familiarity with monitoring and logging tools such as Prometheus, Grafana, ELK Stack, or similar platforms. • Experience with automated testing frameworks such as PyTest. • Exposure to Infrastructure as Code (Terraform, Ansible) is a plus.