Erlang Developer
Hawk MarTechalwar, rajasthan, in14 hours ago
Job description5+ 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 . 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.
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
Nice-to-Have
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