Senior Python Developer

Job Summary

We are looking for an experienced Senior Python Developer to design, develop, and maintain high-performance, scalable backend systems. The ideal candidate has strong expertise in Python frameworks, async programming, real-time communication using WebSockets, and cloud-native application development on AWS.

Key Responsibilities

• Design, develop, test, and maintain backend services using Python
• Build RESTful and asynchronous APIs using Django, FastAPI, and Flask
• Develop real-time applications using WebSockets
• Implement asyncio-based solutions for high-concurrency use cases
• Build scalable, high-availability microservices and backend architectures
• Optimize application performance, latency, security, and reliability
• Write clean, reusable, well-documented, and testable code
• Collaborate with frontend, DevOps, and product teams to deliver end-to-end solutions
• Implement logging, monitoring, and debugging for production systems
• Participate in code reviews and mentor junior developers

Required Technical Skills

Backend & Frameworks

• Strong proficiency in Python
• Hands-on experience with:

Django / Django REST Framework

FastAPI

Flask

• Experience with async/await, event loops, and concurrency models
• Hands-on experience building WebSocket-based services

Async & Real-Time Technologies

• Strong understanding of asyncio
• Experience with:

WebSockets (FastAPI WebSockets, Django Channels, etc.)

Async background tasks and workers

• Knowledge of handling high-throughput, low-latency systems

Databases

• Strong working knowledge of:

PostgreSQL

MongoDB

AWS DynamoDB

• Experience with async database drivers (e.g., asyncpg, motor good to have)
• Database schema design, indexing, and performance tuning

Cloud & AWS

• Solid experience with AWS services:

ECR, ECS

AWS Lambda

S3

AWS Secrets Manager

• Hands-on experience using boto3
• Strong knowledge of AWS security best practices (IAM, encryption, VPC)

Deployment & DevOps

• Containerization using Docker
• Application servers such as Gunicorn
• Experience with CI/CD pipelines
• Hands-on experience with Git, GitHub, GitHub Actions
• Familiarity with agile tools like JIRA

Scalability & Architecture

• Experience building scalable, distributed, and fault-tolerant systems
• Strong understanding of event-driven and async architectures
• Experience handling high-concurrency and real-time workloads
• Familiarity with caching and messaging systems (Redis, SQS – good to have)

Good to Have

• Experience with Django Channels
• Knowledge of message brokers (Kafka, RabbitMQ)
• Experience with testing async code (pytest-asyncio)
• Monitoring & observability tools (CloudWatch, Prometheus, ELK)
• Experience in startup or high-growth environments

Soft Skills

• Strong problem-solving and analytical skills
• Excellent communication and collaboration abilities
• Ownership mindset and ability to work independently
• Focus on code quality and best practices