Senior Backend Engineer

This role is for one of Weekday's clients Min Experience: 3+ years Location: Bengaluru JobType: full-time We're looking for a

Senior Software Engineer (Backend) who can design and build

high-scale, low-latency systems for our AI and voice platform. The ideal candidate will have strong backend engineering fundamentals, experience with distributed systems, and curiosity about

Voice AI, WebRTC, and SIP-based integrations .

Requirements Responsibilities

• Design and develop scalable microservices and backend systems that power real-time AI and voice workflows
• Own end-to-end system design — from architecture, APIs, and data models to deployment and monitoring
• Optimize systems for performance, concurrency, and fault tolerance at high scale
• Implement best practices for observability, testing, and resilience (Datadog, Sentry, etc.)
• Collaborate with product and AI teams to evolve the platform's multi-agent orchestration and automation layer Requirements

Must-Have Skills

• 3-6 years of backend development experience in Python or Java
• Strong grasp of system design, concurrency, and distributed systems
• Experience building scalable, high-availability APIs or streaming systems
• Familiarity with WebRTC, SIP, RTP, or other real-time communication protocols
• Experience with cloud environments (GCP/AWS) and containerized deployments (Kubernetes, Docker)
• Sound understanding of databases (MongoDB, Redis, Postgres) and message queues (Kafka, Pub/Sub)

Good to Have

• Exposure to Voice AI, Speech Processing, or AI Agent frameworks
• Experience integrating LLMs, vector DBs, or real-time AI inference systems
• Prior work on AI-driven or telephony-driven platforms at scale

Must-have Skills Java, Python

Good-to-have Skills webRTC, Microservices, Kubernetes