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Python API Developer

SAI Group Ltd Kolkata, West Bengal, India

Software Development · 51-200 employees

Aug 18
Remote python Mid (2-5 yrs) Full-time India
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About the role

Design, develop, and maintain robust RESTful APIs and backend services using Python frameworks like FastAPI or Flask. Collaborate with cross-functional teams to integrate third-party services and ensure high performance, scalability, and security of applications.

What they look for

Python FastAPI Flask RESTful APIs PostgreSQL MySQL SQL Git GitHub Swagger OpenAPI JWT OAuth2 Unit testing API testing Backend development

Requirements

Requires 2+ years of professional experience in Python backend development and strong proficiency in RESTful API design. Candidates must have hands-on experience with relational databases, authentication protocols, and modern development best practices.

Full description

We are looking for a skilled Python API Developer with 2+ years of professional experience in developing, integrating, and maintaining scalable RESTful APIs and backend applications.

Key Responsibilities

  • Design, develop, test, and maintain robust RESTful APIs using Python.
  • Build backend services using FastAPI or Flask.
  • Integrate third-party APIs and external services.
  • Work with relational/NoSQL databases and optimize queries.
  • Implement authentication, authorization, validation, error handling, and API security.
  • Write clean, reusable, maintainable, and well-documented code.
  • Perform API testing, debugging, and troubleshooting.
  • Collaborate with frontend, QA, DevOps, and product teams.
  • Participate in code reviews and follow development best practices.
  • Improve API performance, scalability, and reliability.
  • Maintain technical documentation for APIs and backend services.

Required Skills

  • 2+ years of professional experience in Python backend/API development.
  • Strong proficiency in Python.
  • Hands-on experience with FastAPI or Flask REST Framework.
  • Strong understanding of REST APIs, HTTP methods, status codes, JSON, and API design.
  • Experience with PostgreSQL, MySQL, or similar relational databases.
  • Good knowledge of SQL and database design.
  • Experience with Git/GitHub.
  • Familiarity with Swagger/OpenAPI.
  • Understanding of JWT/OAuth2 authentication.
  • Knowledge of unit testing and API testing.
  • Good understanding of SDLC and coding best practices.

Good to Have

  • Docker and containerized applications.
  • AWS, Azure, or GCP experience.
  • Redis, RabbitMQ, or Kafka.
  • CI/CD pipelines.
  • Microservices architecture.
  • Linux and basic deployment practices.
  • Agile/Scrum experience.

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