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Design a machine translation service at scale.

Translation is seq2seq generation served across hundreds of language pairs under tight latency and quality budgets. The signal is dodging the quadratic pair explosion, rescuing low-resource languages, and serving it cheaply. Here is the design.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Translation is seq2seq generation served across hundreds of language pairs under tight latency and quality budgets. The signal is dodging the quadratic pair explosion, rescuing low-resource languages, and serving it cheaply. Here is the design.

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