Backend Developer

About the Role: We are looking for a strong Python Backend Developer (3–5 years experience) to build scalable, high-performance backend systems. This role requires hands-on expertise in API development, real-time systems, distributed workflows, and production-grade infrastructure. You will contribute to system architecture, performance optimization, and backend reliability while working closely with product, frontend, DevOps, and AI teams. Key Responsibilities: • Design and develop scalable backend services using Python • Build robust REST APIs using FastAPI • Implement secure authentication and authorization using OAuth2 • Develop and scale real-time systems using WebSockets • Design and optimize relational schemas using PostgreSQL • Implement ORM models and complex queries using SQLAlchemy • Use Redis for caching, pub/sub, rate limiting, and performance optimization • Implement async and concurrent processing patterns • Contribute to system architecture and technical design decisions • Improve observability, monitoring, and system reliability • Write clean, testable, production-grade code • Participate in code reviews and mentor junior engineers when needed Required Skills & Qualifications: • 3–5 years of professional backend development experience with Python • Strong hands-on experience with FastAPI • Deep understanding of OAuth2 authentication flows • Experience building and scaling real-time applications using WebSockets • Strong knowledge of SQLAlchemy • Solid experience with PostgreSQL • Experience with Redis (caching, queues, pub/sub) • Strong understanding of async programming in Python • Good understanding of system design fundamentals • Experience with Git and CI/CD pipelines • Experience debugging production issues Good to Have: • Experience with Agentic AI systems or LLM-driven workflows • Experience with Apache Airflow • Experience with Temporal.io • Experience with OpenTelemetry (tracing, metrics, observability) • Experience deploying applications on Kubernetes • Experience with WebRTC for low-latency communication systems • Experience in microservices-based architectures • Experience working in high-scale production environments • Familiarity with Docker and containerized deployments What We’re Looking For: • Strong ownership mindset • Ability to work independently on backend modules • Comfort working in distributed, event-driven systems • Strong problem-solving and debugging skills