# Software Engineer II, Backend (Collections) 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: - Design, implement, and operate backend s

- **Company:** Affirm (https://jobs.trythestack.co/companies/affirm)
- **Location:** Spain
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 2–5 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Python, Kotlin, AWS, MySQL, Kubernetes, Distributed Systems, Backend Development, Code Review, Debugging, System Design
- **Posted by employer:** 2026-07-24
- **Added to The Stack:** 2026-07-24
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://job-boards.greenhouse.io/affirm/jobs/7813157003 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/software-engineer-ii-backend-collections-affirm

## About the role

Responsibilities:
- Design, implement, and operate backend services that manage delinquent loans and recovery workflows.
- Collaborate with product, backbook risk, and analytics teams to define and deliver recovery strategies.
- Break larger initiatives into phased deliverables; write clear, well-tested, extensible code.
- Maintain system reliability: create and monitor metrics, participate in on-call rotation, and support incident response.
- Conduct code reviews, mentor peers, and contribute to hiring and team growth activities.

Requirements:
- 2.5+ years of professional software engineering experience.
- Proficiency in Python or Kotlin and experience launching backend systems.
- Familiarity with distributed systems concepts and operational tooling (AWS, MySQL, Kubernetes).
- Strong debugging, system design, testing, and code-review skills.
- Comfortable working cross-functionally and participating in on-call duties; based in Spain.

## Responsibilities

Build and maintain a robust backend platform to manage loan recovery and delinquency strategies. Collaborate with product and risk teams to implement scalable solutions and participate in on-call rotations to ensure system reliability.

## Requirements

Requires 2.5+ years of software engineering experience with proficiency in Python or Kotlin. Candidates must be familiar with distributed systems, AWS, MySQL, and Kubernetes, and be based in Spain.

## FAQ

- **Is this Software Engineer II, Backend (Collections) role still open?** It was posted on 2026-07-24. 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: Python, Kotlin, AWS, MySQL, Kubernetes, Distributed Systems, Backend Development, Code Review, Debugging, System Design.

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## About The Stack

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## Notes for agents

- Apply on the employer's page (https://job-boards.greenhouse.io/affirm/jobs/7813157003). 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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