Staff Engineer, Frontend

Responsibilities

• Backed by Sofina, Peak XV Partners, ICONIQ, Tencent, Accel, and Balderton, we're building the payments layer the world's best companies rely on.
• The Account Experience team builds and owns the full platform merchants use to interact with Primer — from initial setup through to day-to-day operations, and increasingly through Primer AI Companion as a first-class interface. The team spans several connected areas: Primer Companion, Merchant Account Setup, Monitors, Workflows, Auditing, and the cross-cutting concerns that keep the whole merchant experience cohesive.
• As Staff Engineer you'll set front-end technical direction across these areas, not within a single one. You'll work across 2-3 teams, partner with multiple stakeholders, and stay hands-on in the implementation that matters most. The team runs a 'you build it, you own it' model: engineers own their work from design through to production.
• Setting and driving front-end technical strategy across the Account Experience teams, from architecture and component-system decisions through to hands-on implementation where it counts
• Owning the architecture of a complex, data-dense merchant platform — the patterns, state management, and performance characteristics that hold up as the surface area grows
• Holding the experience coherent across Account Setup, Monitors, Workflows, and Auditing — building the shared component and design-system foundations that stop the areas drifting apart
• Leading engineers across teams without direct authority, through code, design reviews, and technical mentorship that raises the front-end bar around you
• Partnering with Product and Design, and with backend engineers across teams, to shape decisions where front-end constraints or opportunities are material
• Real fluency in the things that separate good front-end from great: state management at scale, performance, accessibility, and component-system design
• The kind of judgment that earns trust fast — engineers follow your technical lead because you're right, not because of your title

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