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Urgent! Back End Developer Job Opening In Bengaluru – Now Hiring PROADSW3 Relations pvt. ltd.

Back End Developer



Job description

🚀 Job Title: Backend Developer (Python | FastAPI | Kubernetes | Socket.IO)

📍 Location: Bangalore, India

💼 Employment Type: Permanent

🕐 Experience: 5+ Years (No Gaps / No Overlapping Tenure)

About the Role

We are seeking a highly skilled Backend Developer experienced in building production-grade, scalable backend systems that serve 10,000+ concurrent users.

The ideal candidate has deep expertise in FastAPI, Python, Socket.IO, and Kubernetes, with a proven track record of designing microservices that perform efficiently at scale.

If you’re passionate about asynchronous systems, real-time APIs, and high-performance backend engineering, we’d love to meet you.

Key Responsibilities
  • Design, develop, and maintain high-performance backend services using Python and FastAPI.
  • Build and manage asynchronous APIs and real-time communication systems using Socket.IO and async.io.
  • Architect and deploy backend services capable of handling >10,000 concurrent users in production.
  • Work extensively with message queues such as Celery, RabbitMQ, or AWS SQS for distributed task management.
  • Implement and optimize database solutionsPostgreSQL, MongoDB, Databricks, or Apache Iceberg.
  • Design scalable microservices architectures and ensure efficient service communication and load balancing.
  • Collaborate with DevOps to understand Kubernetes scaling, focusing on API performance and microservice resilience within K8s clusters.
  • Ensure code quality, testing, and performance optimization for production-grade deployments.
  • Participate in system architecture discussions, code reviews, and CI/CD automation to enhance development velocity.
Must-Have Skills

Backend Development: Strong hands-on experience in Python (production grade).

Frameworks: Deep expertise in FastAPI.

Real-time Systems: Experience with Socket.IO and async programming (async.io).

Kubernetes: In-depth knowledge of scaling APIs and running microservices in Kubernetes (not deployment setup).

Queues: Strong understanding of Celery, RabbitMQ, or AWS SQS.

Databases: Experience with PostgreSQL, MongoDB, Databricks, and Apache Iceberg.

Scalability: Proven experience managing production systems serving 10k+ users.

Professional Integrity: No career gaps or overlapping employment.

Good to Have
  • Familiarity with Docker, Redis, and CI/CD pipelines.
  • Exposure to monitoring tools (Prometheus, Grafana, ELK stack).
  • Experience with microservice observability and API versioning.
  • Understanding of distributed systems and fault tolerance.



Required Skill Profession

Computer Occupations



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