Backend Engineer ( Lead / SDE-2 / SDE-3 )

Job description

Backend Lead – Real-Time Messaging & VoIP

Location: Bangalore / Hyderabad

Type: Full-Time | Immediate Joining Preferred

CTC: Competitive

About YAL

YAL is building a decentralized, AI-powered communication platform from the ground up — combining secure real-time messaging, voice/video calling, and intelligent fraud detection. Our mission is to deliver global communication infrastructure that prioritizes privacy, security, and performance without relying on centralized servers.

Backend Lead – Real-Time Messaging & VoIP

Responsibilities

• Design, implement, and maintain backend services for messaging, group chat, voice/video calling, and user authentication.
• Build and optimize real-time communication infrastructure using

  WebSockets

  ,

  WebRTC

  ,

  TURN/STUN

  , and related protocols.
• Lead backend system architecture focused on scalability, low latency, and high availability.
• Deploy and manage services on

  AWS

  or

  GCP

  using

  Docker

  ,

  Kubernetes

  , and CI/CD pipelines.
• Collaborate with mobile, AI, and frontend teams to ensure seamless feature integration and cross-platform consistency.
• Ensure best practices in secure messaging, encryption, and session management.
• Drive technical decisions, mentor engineers, and uphold engineering excellence across the team.

Requirements

• Strong backend engineering experience with

  Go

  ,

  Python

  ,

  C/C++

  , or

  Node.js

  .
• Proven experience building and scaling real-time systems, ideally for messaging or VoIP platforms.
• Deep knowledge of

  WebRTC

  ,

  TURN/STUN

  ,

  SRTP

  , and media transport protocols.
• Experience deploying cloud-native services on

  AWS

  or

  GCP

  .
• Familiarity with authentication methods including

  OTP

  ,

  JWT

  , and token-based auth flows.
• Solid understanding of

  end-to-end encryption

  , secure communication pipelines, and user privacy principles.

Preferred Qualifications

• Experience with decentralized/federated protocols such as

  Matrix

  ,

  XMPP

  , or similar.
• Familiarity with media servers like

  Jitsi

  ,

  Janus

  , or

  mediasoup

  .
• Understanding of fraud detection and AI-assisted moderation systems.
• Prior experience with messaging platforms like WhatsApp, Telegram, Signal, or similar real-time communication apps.

Why Join YAL?

• Help shape the architecture of a next-generation messaging and calling platform.
• Work on technically challenging problems with a deep focus on privacy and performance.
• Build secure systems that scale globally.
• Be part of a high-impact team solving meaningful real-time infrastructure challenges.

How to Apply

Easy apply on Linkedin or DM us here on LinkedIn or send your CV + work samples (GitHub, papers, demos) to hire.backend@yal.chat with subject line

Subject: [ Backend Lead - Real-Time Messaging & VOIP | Your Name]