Backend Developer (Python / FastAPI)

 Job Title: Backend Developer (Python / FastAPI)  

Location – Chennai (Onsite) 

Job Summary  We are looking for an experienced Backend Developer with strong expertise in Python and FastAPI to design and build scalable, secure, and high-performance backend systems. The ideal candidate will have hands-on experience in API development, database design, system architecture, and deploying highly available applications, preferably within fintech or regulated environments.  

Key Responsibilities  

• Design, develop, and maintain backend services using Python and FastAPI.  
  

• Build and manage secure, scalable RESTful APIs, WebSockets, and microservices.  
  

• Design and optimize database schemas using PostgreSQL, MySQL, or MongoDB.  
  

• Implement authentication, authorization, and secure coding practices aligned with compliance standards.  
  

• Optimize system performance, reliability, and scalability.  
  

• Write clean, well-documented code with unit and integration tests.  
  

• Collaborate with Frontend, DevOps, QA, and Product teams in Agile sprints.  
  

• Support deployment, monitoring, and troubleshooting of production systems.  
  

Required Skills & Experience  

• 5–6+ years of backend development experience.  
  

• Strong proficiency in Python and FastAPI framework.  
  

• Experience building and managing REST APIs, WebSockets, or gRPC services.  
  

• Strong knowledge of database design, query optimization, and ORM tools.  
  

• Experience with asynchronous programming and scalable system design.  
  

• Familiarity with microservices architecture and API lifecycle management.  
  

• Understanding of CI/CD pipelines, Docker, and cloud deployment environments.  
  

• Knowledge of secure coding practices (JWT, OAuth, encryption, etc.).  
  

• Experience working in Agile/Scrum teams.  
  

• Bachelor’s degree in Computer Science or related field preferred.