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Senior Software Engineer, LLM-Powered FinTech

Mercury Technologies

New York, NY · Posted October 26, 2026

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Pay compared with the market

This listing does not state pay. Across 1,464 open senior software engineer listings that state pay, the middle half runs $174,500 to $222,500 and the median is $202,500.

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About the job

Mercury is seeking a Senior Software Engineer for Mercury Command in a role that spans the full stack and LLM- powered workflows. You will design and ship new Command skills, shape multi-step agentic interactions, and own capabilities end-to-end from system prompts to UI...