# Software Engineer I, Fullstack (Servicing International) at Affirm

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Build and maintain full‑stack features f

- **Company:** Affirm (https://jobs.trythestack.co/companies/affirm)
- **Location:** Spain
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 0–2 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** React, Vue, Python, Kotlin, API design, Fullstack development, Software engineering, Code review, Debugging, Scalable systems, Declarative UI, Communication skills, Problem solving, Collaboration
- **Posted by employer:** 2026-08-05
- **Added to The Stack:** 2026-08-05
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://job-boards.greenhouse.io/affirm/jobs/7809763003 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/software-engineer-i-fullstack-servicing-international-affirm

## About the role

Responsibilities:
- Build and maintain full‑stack features focused on purchase protection (disputes, refunds) and agent tooling.
- Implement and ship declarative UI components (React/Vue) and scalable APIs (Python/Kotlin).
- Collaborate with European and global Servicing teams to design cohesive, production-ready solutions.
- Write clear, well‑tested code, perform code reviews, and debug complex issues in a large codebase.
- Balance delivery speed with stability; follow deployment and monitoring practices and participate in on‑call rotation.
- Communicate progress, trade‑offs and risks to stakeholders; contribute to team learning and processes.

Requirements:
- 0–2 years of professional or internship experience shipping web apps using React or Vue.
- Hands‑on experience designing, building and launching APIs using Python or Kotlin.
- Strong fundamentals in writing testable, maintainable code and working across multiple components.
- Comfortable navigating large codebases, debugging others’ code, and giving/receiving code review feedback.
- Good communication skills, proactive ownership of learning, and ability to work in cross‑functional, distributed teams.

## Responsibilities

You will build and maintain scalable fullstack solutions for international markets, focusing on purchase protection and agent tooling. You will collaborate with global engineering teams to ensure high-quality, performant code while participating in an on-call rotation.

## Requirements

You should have experience shipping web applications using declarative UI frameworks and designing APIs at scale with Python or Kotlin. Strong communication skills and a proactive approach to growth and code quality are essential for this role.

## FAQ

- **Is this Software Engineer I, Fullstack (Servicing International) role still open?** It was posted on 2026-08-05. Listings more than 30 days old may no longer be active, so check Affirm's site before applying.
- **Does Affirm offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Affirm's site.
- **Where is this role located?** The listing gives the location as Spain. It is marked on-site.
- **What skills does this role ask for?** The listing names: React, Vue, Python, Kotlin, API design, Fullstack development, Software engineering, Code review, Debugging, Scalable systems, Declarative UI, Communication skills, Problem solving, Collaboration.

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## About The Stack

The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday.

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## Notes for agents

- Apply on the employer's page (https://job-boards.greenhouse.io/affirm/jobs/7809763003). The Stack does not take applications.
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- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
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