Senior Backend Engineer

Team: IT

Location: India

Commitment: Full-time

Workplace Type: remote

Accountabilities

• Design, develop, maintain, and operate backend services supporting WebRTC and Voice SDK products, with ownership spanning the full service lifecycle.
• Take responsibility for services covering authentication and token management, proxying, push notifications, RTC DNS, and diagnostic logging.
• Improve the reliability, scalability, maintainability, and overall architecture of customer-facing distributed services.
• Enhance connection establishment, authentication flows, routing, session behavior, and service performance for real-time communication workloads.
• Build robust observability through logs, metrics, dashboards, alerts, and operational tooling, including improved visibility into push notification delivery and integrations with APNs and FCM.
• Diagnose and resolve production issues across application services, networking layers, client connectivity, and infrastructure boundaries.
• Strengthen deployment processes, rollout safety, monitoring, and production readiness for distributed systems.
• Identify recurring customer and operational issues and translate them into durable engineering improvements.
• Collaborate with mobile, JavaScript, infrastructure, and other engineering teams to improve end-to-end system reliability.
• Contribute to architecture decisions, technical direction, and the continued evolution of backend systems supporting real-time communication products.

Requirements

• Strong professional experience building and operating backend services in production, particularly within distributed or service-oriented architectures.
• Hands-on experience with Elixir or Erlang, or strong backend engineering expertise combined with the ability and willingness to learn Elixir quickly.
• Experience building or operating real-time, low-latency, or connection-oriented systems.
• Strong understanding of backend fundamentals, including authentication, service communication, session lifecycles, reliability, fault tolerance, and failure recovery.
• Demonstrated ownership of services across design, development, deployment, monitoring, troubleshooting, scaling, and ongoing improvement.
• Practical experience with Kubernetes, containers, CI/CD, and modern production infrastructure.
• Strong observability mindset, with experience using logging, metrics, dashboards, alerting, and root-cause analysis to improve service reliability.
• Good understanding of networking fundamentals and the ability to troubleshoot issues spanning software, networks, and infrastructure.
• Strong communication and collaboration skills, with the ability to work effectively across engineering disciplines and distributed teams.
• Experience with WebRTC, VoIP, voice/video communications, WebSockets, or other real-time communication technologies is highly valued.
• Familiarity with push notification infrastructure such as APNs or FCM, as well as DNS, edge routing, service discovery, or globally distributed systems, is advantageous.
• Experience developing diagnostic, observability, or troubleshooting tools, or backend services supporting mobile and JavaScript SDKs, is a plus.

Benefits

• Remote working opportunity based in India.
• Opportunity to work on real-time, low-latency communication infrastructure and distributed production systems.
• End-to-end technical ownership across architecture, development, deployment, observability, scaling, and production operations.
• Exposure to WebRTC, Voice SDKs, cloud infrastructure, networking, and other advanced backend technologies.
• Collaborative environment involving mobile, JavaScript, infrastructure, and backend engineering teams.
• Opportunity to contribute to technical direction and solve complex reliability and scalability challenges.
• Strong potential for continuous learning and professional growth within a technology-focused environment.