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Stripe logoS
Stripe8414 MerchantXP - Eng

Frontend Engineer, UI Platform

BarcelonaFull-timeMid-LevelSalary: Not disclosed
Posted Oct 27, 2026Deadline: Nov 28, 2026
Job SnapshotActively hiring
LocationBarcelona
Job typeFull-time
SalaryNot disclosed
DeadlineNov 28, 2026

Finjobsly Role Intelligence

Experience level
Mid-Level
Work style
Not specified
Visa sponsorship
Not specified
Salary
Not disclosed
Key skills
Payments

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What you'll own

You’ll own end‑to‑end frontend projects, building and maintaining accessible, performant components, themes, APIs, and tooling for Stripe’s design system and AI coding agents.

What they're looking for

2+ years of professional frontend experience, strong knowledge of modern web technologies, accessibility, responsive design, and fluency with AI‑assisted development tools.

Why this role matters

The role powers the Sail UI platform that underpins Stripe’s Dashboard and other interfaces, enabling engineers and AI agents to create consistent, high‑quality user experiences at scale.

Best suited to

A self‑directed engineer who enjoys shaping reusable UI foundations, collaborating with designers and product engineers, and improving developer tooling and quality systems.

About this role

Who we are

About Stripe

Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone’s reach while doing the most important work of your career.

About the team

The UI Platform team, known as Sail, builds the foundations that support Stripe’s Dashboard and many of Stripe’s other user interfaces. The Sail UI team owns Stripe’s design system, helping Stripe engineers create consistent, accessible, performant, and high-quality experiences at scale.

We build and maintain reusable components, design tokens, theming capabilities, documentation, and developer tooling used by engineers and designers across Stripe. We are currently focused on two major projects. First, we are building Sail for Agents: the generation infrastructure, documentation systems, agent integrations, and automated quality checks that help AI coding agents build high-quality Stripe interfaces safely and consistently at scale. Second, we are evolving the visual language of the Dashboard, one of Stripe’s largest UI surfaces, while modernizing its underlying codebase.

What you’ll do

As a Frontend Engineer on the Sail UI team, you’ll help build and evolve Stripe’s design system and the tools that enable engineers and AI coding agents to create high-quality user interfaces. You’ll independently drive frontend projects from problem definition through rollout, working closely with designers, product engineers, and other Sail engineers. Your work will range from reusable components, themes, and documentation to agentic tooling, automated quality checks, and modernizing the foundations of Stripe’s Dashboard.

Responsibilities

  • Take end-to-end ownership of software projects, independently scoping problems and carrying solutions through design, implementation, testing, and rollout
  • Build and maintain accessible, performant, and well-tested components, themes, and frontend APIs used across Stripe
  • Build tooling, documentation, and automated quality checks that help engineers and AI coding agents use Sail effectively and meet Stripe’s UI quality bar
  • Partner with product designers and engineers to understand their needs and turn recurring UI patterns into reusable design-system capabilities
  • Help evolve the visual language of Stripe’s Dashboard while modernizing its underlying codebase and migrating legacy UI patterns
  • Improve the accessibility, internationalization, observability, performance, reliability, and developer experience of the design system
  • Contribute thoughtful code reviews, technical discussions, and documentation that improve the quality of the team’s work

Who you are

We’re looking for someone who meets the minimum requirements to be considered for the role. If you meet these requirements, you are encouraged to apply. The preferred qualifications are a bonus, not a requirement.

Minimum requirements

  • Fluency in using AI-assisted and agentic development tools as part of day-to-day software engineering, including critically reviewing, validating, and improving generated code
  • 2+ years of professional frontend engineering experience, or equivalent practical experience, building, shipping, and debugging web applications
  • Strong knowledge of modern frontend technologies and frameworks, including browser fundamentals, responsive design, and accessibility
  • Ability to independently scope and deliver open-ended frontend projects, making practical technical and product tradeoffs with limited oversight
  • Strong problem-solving and debugging skills, with attention to testing, maintainability, and the quality of the resulting user experience
  • Strong written and verbal communication skills and the ability to collaborate effectively with designers, product engineers, and other partners

Preferred qualifications

  • Experience working on a design system, frontend platform, or shared component library
  • Experience with developer tooling such as build tools, package managers, codemods, lint rules, or large monorepos
  • Experience building tools, integrations, or automated evaluation and quality systems for AI coding agents
  • Experience using documentation, developer feedback, or adoption data to improve a developer-facing product

More about this role

About company

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Stripe

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More Software Engineering Jobs→More jobs at Stripe→Payments jobs →Salary benchmarks for this role →Browse all fintech jobs →

Stripe

Frontend Engineer, UI Platform

BarcelonaSalary: Not disclosed

Company insights

62

Happiness score

62/100

Based on 31 verified employee signals

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