# Senior Software Engineer, Back-end, (Repayment Scheduling) 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: - Own and deliver quarterly goals for the

- **Company:** Affirm (https://jobs.trythestack.co/companies/affirm)
- **Location:** Spain
- **Work arrangement:** Remote
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Python, Kotlin, AWS, MySQL, Kubernetes, Distributed Systems, Backend Development, System Design, API Design, Code Review, Technical Planning, Collaboration
- **Posted by employer:** 2026-07-16
- **Added to The Stack:** 2026-07-17
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://job-boards.greenhouse.io/affirm/jobs/7806683003 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-software-engineer-back-end-repayment-scheduling-affirm

## About the role

Responsibilities:
- Own and deliver quarterly goals for the Repayment Scheduling service area; lead technical delivery from design through production.
- Drive design and implementation of backend systems that schedule and orchestrate payments at scale.
- Collaborate with Product, Design, and Analytics to define requirements, trade-offs, and technical constraints.
- Operate production systems: define and monitor metrics, participate in on-call rotations, and improve reliability.
- Mentor teammates, set code/design standards, and foster a culture of quality, ownership, and measurable impact.
- Proactively identify technical, process, or product risks and lead remediation efforts.

Requirements:
- 4+ years of backend engineering experience building and operating production systems using Python or Kotlin.
- Experience with distributed systems and reliability patterns; familiarity with AWS, Kubernetes, and MySQL.
- Strong system design skills: can define elegant, extensible technical plans for substantial features.
- Comfortable with on-call responsibilities and production monitoring/alerting practices.
- Strong collaboration and communication skills; able to influence cross-functional partners and mentor peers.
- Track record of shipping impactful features in agile, fast-paced environments.

## Responsibilities

Own and deliver quarterly goals for the Repayment Scheduling team, leading engineers through ambiguity to solve open-ended backend problems. Collaborate with product, design, and analytics teams to define technical constraints and maintain system availability through monitoring and on-call support.

## Requirements

Requires 4+ years of experience designing and launching scalable backend systems using Python or Kotlin. Must have a proven track record with distributed systems using AWS, MySQL, and Kubernetes, along with strong communication skills.

## FAQ

- **Is this Senior Software Engineer, Back-end, (Repayment Scheduling)  role still open?** It was posted on 2026-07-16. 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 remote.
- **What skills does this role ask for?** The listing names: Python, Kotlin, AWS, MySQL, Kubernetes, Distributed Systems, Backend Development, System Design, API Design, Code Review, Technical Planning, Collaboration.

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## Notes for agents

- Apply on the employer's page (https://job-boards.greenhouse.io/affirm/jobs/7806683003). 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.
- Cite this job as: "Senior Software Engineer, Back-end, (Repayment Scheduling) at Affirm, listed on The Stack Jobs (https://jobs.trythestack.co/jobs/senior-software-engineer-back-end-repayment-scheduling-affirm)".
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