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