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Urgent! Senior Python Backend Developer Job Opening In New Delhi – Now Hiring BabyBillion

Senior Python Backend Developer



Job description

About BabyBillion

BabyBillion is one of the fastest-growing kids' content companies in the world.

With over 1 billion monthly views, we are on a mission to become the world’s #1 kids' content channel by December 2025.

We create world-class educational and entertaining videos that captivate preschool audiences globally.

We are looking for a highly creative and data-driven Scriptwriter to join our passionate team and help us scale our storytelling to new heights.

Job Summary We are seeking an experienced Senior Python Backend Developer to join our team.

In this role, you will be instrumental in designing, building, and scaling our high-performance backend systems.

The ideal candidate has a strong background in creating robust APIs, integrating key services, and architecting solutions for high-traffic applications.

You will take a leading role in enhancing our platform, migrating to a microservices architecture, and mentoring junior developers.

Key Responsibilities

Design, develop, and maintain production-grade applications using

FastAPI

to support over 200 endpoints.

Build and secure RESTful APIs with robust versioning, documentation, and authentication mechanisms like

JWT

and

OAuth .

Manage and optimize

MongoDB

databases, including writing complex aggregation pipelines.

Implement and manage asynchronous background tasks using

Celery

with

Redis

or

RabbitMQ .

Integrate and maintain payment gateways such as

Razorpay

and

Stripe .

Lead architectural improvements, including the migration from a monolithic to a

microservices

architecture.

Develop real-time features using

WebSockets

and design systems to handle 10,000+ concurrent users.

Implement automated testing, performance monitoring (e.g., OpenTelemetry), and system optimizations.

Mentor junior developers and contribute to architectural planning and best practices.

Required Skills & Experience

2+ years of professional experience in backend development.

Strong proficiency in

Python , with expertise in asynchronous programming (async/await).

Proven experience building and scaling applications with

FastAPI .

In-depth knowledge of

MongoDB , including query optimization.

Solid understanding of authentication, security principles, and implementing JWT/OAuth.

Hands-on experience with background task processing using

Celery .

Excellent problem-solving skills and a passion for writing clean, maintainable code.

Preferred Qualifications

Experience with

microservices , event-driven architecture, and API gateways.

Familiarity with containerization ( Docker ) and CI/CD pipelines.

Knowledge of cloud platforms like

AWS

or

GCP .

Exposure to AI/ML tools (e.g., ONNX Runtime),

Kafka , or

GraphQL .

Our Tech Stack

Language/Framework:

Python 3.12+, FastAPI Database:

MongoDB (Motor) Task Queues/Brokers:

Celery, Redis, RabbitMQ Payments:

Razorpay, Stripe AI/ML:

ONNX Runtime, Rembg Infrastructure:

Docker, Gunicorn, Uvicorn Monitoring:

OpenTelemetry, Prometheus Testing:

Pytest


Required Skill Profession

Prb



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