Backend2026-05-17
Erlang
Also known as: Erlang / アーラン
A functional language for concurrent and distributed systems originally developed at Ericsson. Its BEAM VM and 'let it crash' philosophy deliver the nine-nines availability demanded by telecom and financial systems.
Overview
Erlang powers massive real-time systems like WhatsApp, which served billions of users on a small cluster. Through Elixir it is now accessible to a broader web development audience.
BEAM Ecosystem
Erlang and Elixir share the BEAM VM and can call each other freely. For AI agent infrastructure that demands fault tolerance and high concurrency, see Elixir 2026 guide.
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