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Senior Frontend Engineer @ IFX Payments

London, LondonOnsiteFull-time
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About this role

Overview of the role This role sits in the Accounts tribe, which owns the onboarding of clients and their accounts, including KYC/KYB across corporate, fund, intermediaries and sub-accounts. You will be part of a team building a single page application that runs on React 18, TypeScript (strict), TanStack Query / Form / Router, Tailwind + a Radix/shadcn component system, Vitest + RTL + MSW. You make the design calls on your domain and argue them out with the tribe. You build it, you run it, you own it. We are after someone who owns customer outcomes, takes responsibility to ensure their software works and sounds the alarm if we are attempting to build the wrong things. Design and build new features in a form-heavy, React single page application Thoroughly test everything you build to prove your software works Make architectural calls on your domain, record down, present and defend them in front of the tribe. Build in security, reliability and observability from the start. Use AI tooling well. We use Claude Code daily and we expect judgement about where it earns its place and where it doesn't. Review code, raise the standard around you, and help less experienced engineers get better.

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