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Backend Engineer, Internationalisation

Stripe · Barcelona

Location
Barcelona
Level
Internship
Posted
6 November

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 Internationalisation team builds the platform that helps Stripe products work naturally across languages and markets. We create and operate the infrastructure that enables Stripe teams to localize product interfaces, services, and written communications while delivering consistent, high-quality experiences to users around the world.

We work closely with our sister Localization team and its language experts, as well as with product and service engineering teams integrating localized content. Together, we combine engineering, automation, and linguistic expertise to help Stripe build products that feel native to each market.

What you’ll do

You will design, implement, and maintain Stripe’s internationalisation platform at scale, including the developer and user experiences around it. You’ll help teams continuously localize their products while improving the quality, speed, reliability, and efficiency of Stripe’s localization processes.

This role combines backend and platform engineering with emerging LLM technology. Depending on the project, you may build end-to-end functionality for internal customers, evolve production LLM systems, develop quality-evaluation capabilities, improve platform reliability and observability, or lead migrations from legacy localization infrastructure.

Responsibilities

  • Design and build internationalisation infrastructure that supports diverse content surfaces, including backend services, product interfaces, and written communications.
  • Integrate localization into Stripe’s software-development and content-production workflows, enabling teams to ship translated experiences continuously and safely.
  • Build and maintain integrations with translation-management systems, LLM services and external localization providers.
  • Evolve Stripe’s existing production LLM capabilities to improve translation quality, market relevance, turnaround time, and operational efficiency.
  • Develop automated quality checks and human-evaluation workflows that combine LLM-driven automation with expert linguistic judgment.
  • Maintain a high bar for reliability through effective testing, monitoring, alerting, and operational processes.
  • Own ambiguous, high-impact initiatives end to end - from research and experimentation through implementation, launch, measurement, and iteration.

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

  • Strong coding skills in any programming language (we understand new languages can be learned on the job so our interview process is language agnostic)
  • Experience developing reliable infrastructure, platform, or backend-service solutions.
  • Strong product judgment and a commitment to building high-quality user and developer experiences.
  • Ability to own ambiguous work end to end and make progress through research, experimentation, and iteration.
  • Strong written and verbal communication skills, with the ability to work effectively in a collaborative, cross-functional environment.

Preferred qualifications

  • Experience building or operating production LLM or machine-learning systems.
  • Experience evaluating LLM output or combining automated systems with expert human review.
  • Familiarity with internationalisation, localization, translation, or content-management workflows.
  • Experience with CI/CD systems, developer platforms, or workflow infrastructure.
  • Backend engineering experience building services using programming languages such as Java, Ruby, or Go.
  • Experience building internal platforms that ultimately support customer-facing products.

As published by Stripe. Applications are handled on their site.

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. Headquartered in San Francisco and Dublin, the company aims to increase the GDP of the internet.

All 768 openings at Stripe

One click, then it is written

Apply to Stripe with a resume written for this role.

Queue Backend Engineer, Internationalisation and I read the posting, rewrite your resume against it, draft the cover letter, and score the fit. Then you press send, or press one button and I fill in Stripe’s form for you.

  1. 01Drop your resume

    A PDF or a LinkedIn URL. About a minute, once.

  2. 02I rank the openings

    Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

  3. 03Each one is written up

    Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

  • 25 sent a week, free
  • No card
  • Nothing sent until you say so

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Put this to work

Paste your career in once. Every application after that is written for you.

Drop a resume or a LinkedIn URL. I rank the live openings against it, rewrite the resume and write a cover letter for the best of them, and fill in the employer's form when you press the button. You read, you decide what goes out.

  1. 01Drop your resume

    A PDF or a LinkedIn URL. About a minute, once.

  2. 02I rank the openings

    Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

  3. 03Each one is written up

    Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

  • New matches ranked and written before you are up.
  • Every bullet stays inside what your history supports. Nothing invented.
  • Queued, submitted, interviewing, offer: one screen, not a spreadsheet.

Free, no card. Up to 25 applications sent a week, and nothing is sent until you say so.

Listed from the job board Stripe publishes. Refolk is not the employer and does not handle their hiring. Applications go to Stripe directly.

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