---
title: 'Staff Backend Engineer - UI Platform at Stripe'
canonical: 'https://feeny.ai/job/staff-backend-engineer-ui-platform-stripe-barcelona-vrwvjb9vjgtn'
type: 'job'
last_seen: '2026-09-06'
---

# Staff Backend Engineer - UI Platform at Stripe

- **Company:** Stripe
- **Location:** Barcelona, Spain
- **Posted:** 2026-08-21
- **Last confirmed live:** 2026-09-06
- **Apply:** https://stripe.com/jobs/search?gh_jid=8130377

## Job description

## 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 Services team provides backend-for-frontend services that help product teams build consistent, scalable user experiences.

The team is defining its mission, roadmap, and technical vision as the UI platform takes on a more central role in how Stripe builds user interfaces. We work with engineers, product managers, and designers across Stripe to connect the design system, software development kits, and backend services into a consistent, surprisingly delightful user experience.

## What you’ll do

As a Staff Software Engineer on the UI Platform team, you’ll help shape the technical direction for the services that support Stripe’s user interfaces. You’ll combine hands-on engineering with technical leadership, working with backend engineers and cross-functional partners to deliver platform capabilities that help Stripe build consistent, reliable user experiences.

## Responsibilities

- Define a cross-team technical strategy, architecture, and multi-year roadmap for the backend services that power Stripe’s merchant-facing experiences
- Lead the design and delivery of scalable backend services that give product teams a consistent foundation for building reliable user experiences across the Dashboard, mobile applications, and other interfaces
- Build reusable platform capabilities that help product teams develop, operate, and improve their products with confidence
- Partner with engineers, product managers, and designers to connect the design system, software development kits, APIs, and backend services
- Provide hands-on technical leadership through architecture reviews, technical guidance, and mentorship, raising the quality and effectiveness 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

- This is a staff-level role, which typically means 10+ years of experience building complex, reliable, scalable APIs or distributed systems
- Track record of leading the technical design and delivery of large projects across multiple engineering teams
- Experience setting technical direction and translating strategy into an executable roadmap
- Demonstrated ability to communicate technical decisions and tradeoffs with engineering, cross-functional partners, and senior leadership

## Preferred qualifications

- Experience building backend-for-frontend systems or frontend platform services
- Experience working on developer platforms, design systems, or UI infrastructure
- Experience using agentic development workflows to improve engineering productivity
- Experience with feature flagging, experimentation, telemetry, or analytics systems

## About Stripe

## Core Business
- Primary industry: Financial services / payments infrastructure
- Target customers: B2B – from startups to global enterprises (e.g., Le Monde, trucking companies)
- Mission: “Increase the GDP of the internet” by making online commerce easier and more accessible

## Products & Services
- **Stripe Payments**: Accept and optimise payments globally – online and in person; supports 135+ currencies and payment methods [stripe.com](https://stripe.com/)
- **Stripe Billing**: Manage subscriptions, invoices, and recurring revenue; over 200 million active subscriptions managed [stripe.com](https://stripe.com/)
- **Stripe Connect**: Embed payments into platforms and marketplaces
- **Stripe Atlas**: Incorporate a company, get everything needed to fundraise and start selling
- **Stripe Terminal**: In-person payments with customisable card readers
- **Stripe Issuing**: Create and manage a card issuing programme
- **Stripe Climate**: Automatically contribute a fraction of revenue to carbon removal

## Market Standing
- **Valuation/Market Cap**: Not publicly available (private company)
- **Key Metric**: $1.9 trillion in payments volume processed in 2025 [stripe.com](https://stripe.com/)
- **Notable Investors/Partners**: Not disclosed in provided sources
- **Growth Signals**:
  - Infrastructure underpins more than 1% of global GDP [stripe.com](https://stripe.com/jobs/life-at-stripe)
  - Over 8,000 employees across 25+ offices worldwide [stripe.com](https://stripe.com/jobs)
  - 99.999% historical uptime for Stripe services [stripe.com](https://stripe.com/)
  - Deploys 10,000+ times per day while maintaining five 9s of reliability [stripe.com](https://stripe.com/jobs/life-at-stripe)
  - 135+ currencies and payment methods supported [stripe.com](https://stripe.com/)

## Competitive Advantages
- **Scale & Reliability**: Processes massive transaction volumes with 99.999% uptime – a level of trust few competitors match.
- **Developer‑First Experience**: Obsessive focus on API design, documentation, and ease of integration; “start with a blank screen, work until a product is ready, polish until exceptional” [stripe.com](https://stripe.com/jobs/life-at-stripe).
- **Global Reach**: Supports 135+ currencies and payment methods, with local offices in 25+ cities to serve regional needs.
- **Network Effects**: The more businesses use Stripe, the more data and infrastructure advantages accrue, making it harder to switch.

## Strategic Focus
- **AI & Agentic Commerce**: Building economic infrastructure for AI, including monetisation through agentic commerce [stripe.com](https://stripe.com/).
- **Crypto & Stablecoins**: Enabling borderless money movement with stablecoins and crypto [stripe.com](https://stripe.com/).
- **Platform Expansion**: Continuing to add financial tools (billing, issuing, terminal, climate) that work individually or together.
- **Globalisation**: Deepening presence in markets like Japan, India, and Latin America.

## Why Work Here
- **Culture**: “Intense and kind” – high expectations paired with a supportive, transparent environment. Weekly all‑hands with senior leaders; decisions based on idea quality, not seniority [stripe.com](https://stripe.com/jobs/life-at-stripe).
- **Growth & Ownership**: “Promotions are tied to demonstrated impact, not tenure.” Employees get substantial responsibility early, often working outside their domain [stripe.com](https://stripe.com/jobs).
- **Work Model**: Hybrid/remote‑friendly – two main HQs (San Francisco & Dublin) plus 25+ offices, and many Stripes work from home or coworking spaces [stripe.com](https://stripe.com/jobs).
- **Benefits**: Comprehensive medical, mental health, financial advisory, family planning, and parental leave. Education team provides onboarding and ongoing expert‑led courses [stripe.com](https://stripe.com/en-gi/jobs/benefits).
- **Diversity & Inclusion**: Employee‑created resource groups (Stripe Communities), accommodations for disabilities, and a commitment to equal opportunity [stripe.com](https://stripe.com/jobs).

## Sources
1. [stripe.com/jobs/life-at-stripe](https://stripe.com/jobs/life-at-stripe)
2. [stripe.com/jobs](https://stripe.com/jobs)
3. [stripe.com/](https://stripe.com/)
4. [stripe.com/jobs/search](https://stripe.com/jobs/search)
5. [stripe.com/en-gi/jobs/benefits](https://stripe.com/en-gi/jobs/benefits)

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