Back End Developer (Python/FastAPI)

About

Grapes, India’s leading Integrated communications agency nurtures digital strategy and marketing approach across paid, earned, and owned platforms. With both brand and business impact at the forefront, Grapes offers full services in Digital and Communication Solutions – Strategy Wonks at head and Creative at heart, we are strong in setting KPIs, and goals and executing innovative-creative campaigns. We combine Strategy, Process, and Trends to build brands and turn customers into evangelists.

Powered with deep technical knowledge combined with extensive experience in digital marketing, we at Grapes are equipped to service all our clients with perfect communication advice that is apt for their brands. The vision is a clear one, of outperforming expectations at every possible stage. With over 200+ minds continuously at work, we own what we do! Agile minds are at our core with a continuous endeavour to invest in talent.

Responsibilities

• Design, develop, and maintain

  RESTful APIs

  using

  FastAPI

  (or Flask/Django).
• Implement and document APIs with

  OpenAPI/Swagger

  .
• Manage relational and NoSQL databases (

  PostgreSQL, MySQL, DynamoDB, MongoDB

  ).
• Utilize

  ORMs

  like

  SQLAlchemy/Alembic

  for schema and data management.
• Integrate caching and task queues using

  Redis

  and

  Celery

  .
• Develop, deploy, and maintain applications on

  AWS (Lambda, RDS, S3, Cognito, etc.)

  or

  Azure (Blob Storage, AD, Functions, RBAC)

  .
• Implement

  OAuth2/JWT/SSO

  -based authentication and

  RBAC

  authorization mechanisms.
• Collaborate on CI/CD workflows using

  GitHub Actions, Jenkins, or Azure DevOps

  .
• Containerize and deploy services with

  Docker

  (Kubernetes or RunPod exposure is a plus).

Experience & Skills

• 3+ years

  of backend development experience with

  Python (3.x)

  .
• Proficiency with

  FastAPI

  , and familiarity with

  Flask

  or

  Django

  .

• ComfyUI

  : How workflows work, ComfyUI Json workflow as a controllable endpoints, Deploying it on Runpod, Running runpod pods with ComfyUI and stateless servers with runpod, get a controllable API to postmen that can work with Webapp, Login systems with python backend.
• LLM system, custom LLM modles, making the LLM chat with a memory, continuous chat loop which accepts images as well.
• Strong understanding of

  API design

  , database schema design, and

  query optimization

  .
• Experience with

  AWS or Azure

  cloud ecosystems.
• Working knowledge of

  CI/CD pipelines

  ,

  Git

  , and

  containerization

  .
• Familiarity with modern

  security and authentication

  standards.