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Erlang Developer

Erlang Developer

Hawk MarTechkozhikode, kerala, in
12 hours ago
Job description

Role Overview

As a Senior Erlang Developer , you will be responsible for developing and optimizing backend components that power real-time chat, presence, group messaging, push notifications, and end-to-end encryption. You’ll work on scalable systems capable of handling millions of concurrent users and billions of messages daily.

Key Responsibilities

  • Design, build, and maintain real-time, low-latency messaging services using Erlang / OTP .
  • Implement and optimize protocols such as XMPP , MQTT , or custom lightweight messaging protocols.
  • Build fault-tolerant, distributed backend services capable of scaling horizontally.
  • Develop presence systems, user state management, chat history storage, and message delivery tracking.
  • Work closely with mobile and frontend teams to integrate APIs and messaging features.
  • Contribute to the architecture of end-to-end encryption, message queues, and storage strategies.
  • Monitor system performance and implement improvements to reduce latency and resource usage.
  • Ensure high availability and zero-downtime deployments with rolling updates and clustering strategies.
  • Collaborate in code reviews, architectural discussions, and feature planning sessions.

Must-Have Qualifications

  • 5+ years of production experience with Erlang / OTP , ideally in real-time systems .
  • Solid understanding of distributed systems , event-driven architecture , and concurrent programming .
  • Experience working with messaging protocols (e.g., XMPP , MQTT , WebSockets ).
  • Familiarity with Mnesia , Riak , or similar distributed databases.
  • Proficiency in building and scaling systems that handle millions of concurrent users .
  • Knowledge of fault tolerance , hot code swapping , and system uptime strategies .
  • Strong understanding of networking, sockets , and asynchronous I / O .
  • Experience with monitoring tools (e.g., Grafana, Prometheus) and log aggregation .

    • Nice-to-Have

  • Experience with push notification systems (APNs, FCM, etc.).
  • Exposure to end-to-end encryption , cryptographic protocols, and secure messaging architectures.
  • Familiarity with Elixir or willingness to work in an Erlang / Elixir hybrid environment.
  • Understanding of containerized deployments (Docker, Kubernetes).
  • Contributions to open-source Erlang projects or messaging libraries.
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    Developer • kozhikode, kerala, in