# Staff Software Engineer - UI Platform

**Company:** [Stripe](https://hotfix.jobs/companies/stripe)
**Location:** Barcelona, Spain
**Role:** Backend Engineering
**Experience:** 10+ years
**Skills:** Backend Services, APIs, Distributed Systems, Architecture, Technical Strategy, Roadmaps, Backend-For-Frontend, Developer Platforms, Design Systems, Feature Flagging, Experimentation, Telemetry, Analytics Systems, Mobile Applications
**Posted:** 2026-08-21

> Leads the technical strategy and hands-on delivery of scalable backend and UI platform capabilities supporting merchant-facing experiences across web and mobile interfaces. Requires 10+ years building APIs or distributed systems and a record of cross-team technical leadership.

## Job Description

## Responsibilities
- Define cross-team technical strategy, architecture, and multi-year roadmaps for backend services powering merchant-facing experiences.
- Lead the design and delivery of scalable backend services supporting 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.
- Partner with engineers, product managers, and designers to connect design systems, software development kits, APIs, and backend services.
- Provide hands-on technical leadership through architecture reviews, technical guidance, and mentorship.

## Requirements
- 10+ years of experience building complex, reliable, scalable APIs or distributed systems.
- Experience leading the technical design and delivery of large projects across multiple engineering teams.
- Experience setting technical direction and translating strategy into an executable roadmap.
- Ability to communicate technical decisions and tradeoffs with engineering teams, cross-functional partners, and senior leadership.

## Nice-to-haves
- Experience building backend-for-frontend systems or frontend platform services.
- Experience with 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.

## Similar jobs

- [Staff Software Engineer, GRC](https://hotfix.jobs/jobs/3a506b48-97b0-44a6-8c94-1b8de6be5ad9) - Vanta - Remote - $260k – $306k/yr
- [Staff Engineer - Data Platform Experience](https://hotfix.jobs/jobs/83c4a3b7-0151-42a8-8538-2949b6b83346) - Datadog - Lisbon, Portugal
- [Senior Software Engineer - Distributed Systems](https://hotfix.jobs/jobs/335fddce-18c1-495f-a579-6facebf7f046) - Datadog - Bordeaux, France
- [Senior Software Engineer, Backend (Money Movement)](https://hotfix.jobs/jobs/8afb425b-fe94-4b6b-8b26-f8dde0de4f58) - Phantom - Remote
- [Principal Payments Engineer](https://hotfix.jobs/jobs/e9e8ae1c-f327-407d-a81b-0f8e7a965c28) - Payabli - Remote

**Apply:** https://hotfix.jobs/jobs/200d452a-4463-48dc-9a41-38a30ef8e88e
**Canonical:** https://hotfix.jobs/jobs/200d452a-4463-48dc-9a41-38a30ef8e88e