Back End Developer

2 weeks ago

Bengaluru, Karnataka, India PROADSW3 Relations pvt. ltd. Full time ₹ 15,00,000 - ₹ 25,00,000 per year

Job Title: Backend Developer (Python | FastAPI | Kubernetes | Socket.IO)Location:Bangalore, IndiaEmployment Type:PermanentExperience:5+ Years (No Gaps / No Overlapping Tenure)About the RoleWe are seeking a highly skilledBackend Developerexperienced in buildingproduction-grade, scalable backend systemsthat serve10,000+ concurrent users. The ideal candidate has deep expertise inFastAPI, Python, Socket.IO, andKubernetes, with a proven track record of designing microservices that perform efficiently at scale.If you're passionate aboutasynchronous systems,real-time APIs, andhigh-performance backend engineering, we'd love to meet you.Key ResponsibilitiesDesign, 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 .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 solutions — PostgreSQL , 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 SkillsBackend Development:Strong hands-on experience inPython (production grade).Frameworks:Deep expertise inFastAPI.Real-time Systems:Experience withSocket.IOandasync programming ).Kubernetes:In-depth knowledge ofscaling APIs and running microservicesin Kubernetes (not deployment setup).Queues:Strong understanding ofCelery,RabbitMQ, orAWS SQS.Databases:Experience withPostgreSQL,MongoDB,Databricks, andApache Iceberg.Scalability:Proven experience managingproduction systems serving 10k+ users.Professional Integrity:No career gaps or overlapping employment.Good to HaveFamiliarity 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 .

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