Senior Software Engineer

2 days ago


Bengaluru, India Apna Full time

Experience:  3–6 YearsLocation:  Bengaluru (Work from Office)Team:  Blue Machines – Apna’s Agentic AI PlatformAbout Blue MachinesBlue Machines by Apna is building the next generation of large-scale Voice & AI Agent Infrastructure , powering millions of real-time conversations, interviews, and workflow automations across industries. Our platform handles Tens of millions of voice minutes  and integrates deeply with telephony, AI models, and real-time streaming systems  — all built for scale, reliability, and intelligence.Role OverviewWe’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 .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. Benefits Why Join Us Work on India’s largest Voice AI and Agentic Automation platform , shaping how enterprises interact with AI. Collaborate with a world-class team building scalable real-time systems  that push latency and reliability limits. Opportunity to grow into architecture, infra, or AI platform leadership roles  as Blue Machines scales globally.



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