Arithmos is building the retail layer for direct indexing. We turn a plain-English idea into a transparent, rule-based portfolio with institutional-grade backtesting and analytics. Our goal is to make structured investing accessible to millions.

You will join as a Data / Quant Engineer to design and maintain the core intelligence layer: every index, backtest, and performance claim rests on your work. London (hybrid) or Remote (UK/EU) with a competitive base salary and equity.

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