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Staff Engineer, Front-End Architecture (Account Experience Platform)

Primer • Poland
Remote
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Lead front-end technical strategy for Primer’s merchant platform, architecting scalable, high-performance interfaces across multiple teams. Shape AI-driven merchant experiences and ensure cohesive design systems while mentoring engineers. Requires deep expertise in TypeScript, React, and full-stack collaboration.

Key Highlights
Set front-end technical direction across multiple Account Experience teams (Primer Companion, Merchant Setup, Monitors, Workflows, Auditing)
Architect scalable state management, performance, and accessibility for a data-dense merchant platform
Mentor engineers and partner with Product/Design to align front-end constraints with business goals
Key Responsibilities
Define and drive front-end technical strategy across Account Experience teams, including architecture and component-system decisions
Own the architecture of Primer AI Companion as a first-class merchant interface, ensuring native conversational UX
Maintain coherence across Merchant Account Setup, Monitors, Workflows, and Auditing via shared design-system foundations
Lead engineers without direct authority through technical mentorship and code/design reviews
Prioritize accessibility, performance budgets, and front-end observability as first-class concerns
Collaborate with Product, Design, and backend engineers to align front-end constraints with platform goals
Technical Skills Required
TypeScript React State Management at Scale
Benefits & Perks
Fully remote and globally distributed work environment
Competitive share options
Uncapped holiday (minimum 25 days)
Private Medical Insurance
Generous learning budget
Co-working space access across major cities
Workations and annual company retreat
£500 towards home office setup
Best equipment for role
Nice to Have
Experience in payments, fintech, or platform contexts
Fluency in Python, AWS, Kubernetes, or Terraform (for full-stack reasoning)

Job Description

An Introduction to Primer

Primer is the unified infrastructure for global payments. We give finance and payments teams the visibility and control to reduce complexity, improve performance, and capture more revenue - all from a single platform.

Backed by Sofina, Peak XV Partners, ICONIQ, Tencent, Accel, and Balderton, we're building the payments layer the world's best companies rely on.

Watch our showcase >

Read up on our $100m Series C

Learn more about our culture >

Which team will you be joining?

The merchant experience is only as good as the platform behind it — and most of that experience is the interface itself.

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