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Jobs Search
Start Date
Immediate
Expiry Date
04 Dec, 26
Salary
0.0
Posted On
05 Sep, 26
Experience
0 year(s) or above
Remote Job
Yes
Telecommute
Yes
Sponsor Visa
Yes
Skills
Industry
Information Technology & Services
← all rolesfounding
Open role
Frontend / Product Engineer (Founding)
Own the product surface that millions of people will use to build their first custom index.
London (hybrid) or Remote (UK/EU)Full-time£150,000–£170,000 base
About Arithmos
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.
The role
This is a founding product engineer role. You will own the user experience that determines whether users understand, trust, and share what we’ve built. Your work directly impacts growth, activation, and revenue.
What you’ll do
Own the end-to-end frontend experience
Build growth-critical features
Drive conversion and activation
Partner with growth on rapid experiments
Ensure best-in-class performance
Requirements
Nice to have
Why this role is exceptional