Senior Software Engineer, Back-end, (Repayment Scheduling) at Affirm

✨ The Stack take on this Affirm job

• 🏢 Affirm has 38 jobs here, 25 with visa sponsorship see all
• 🛂 Visa: Highly Qualified Professional permit. Education: Higher education degree guide
• 💡 No salary shown. Ask Affirm if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

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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.

Key skills

• Python — in 1200 other listings on The Stack
• Kotlin — in 251 other listings on The Stack
• AWS — in 802 other listings on The Stack
• MySQL — in 93 other listings on The Stack
• Kubernetes — in 585 other listings on The Stack
• Distributed Systems — in 342 other listings on The Stack
• Backend Development — in 171 other listings on The Stack
• System Design — in 199 other listings on The Stack
• API Design
• Code Review
• Technical Planning
• Collaboration

On The Stack (as of 2026-11-05)

• Affirm has 37 other listings on The Stack, 24 of them marked as offering visa sponsorship.
• 76 visa-sponsored jobs in Spain on The Stack, posted in the last 60 days.
• 195 visa-sponsored software engineer jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about Affirm

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.