Senior Backend Engineer: API & Scale (Python/Kotlin)

Affirm; Sioux Falls (SD); On-site; USD 110,000 - 165,000; Full time

Benefits offered by this job

Health Care Coverage

Flexible Spending Wallets

Technology Stipend

Food Stipend

Lifestyle Stipend

Family Forming Expenses Stipend

Vacation and Holiday Schedules

Employee Stock Purchase Plan (ESPP)

Job summary

Affirm is seeking an experienced backend engineering leader to own quarterly goals and guide engineers through complex, open‑ended problems while designing scalable backend solutions for enterprise merchants.

You will collaborate with product, design, and analytics teams to build APIs and integrated solutions, using Python or Kotlin and technologies like AWS, MySQL, and Kubernetes to deliver reliable systems.

Qualifications

• Requires 4+ years of backend experience with Python or Kotlin.
• Proven track record of developing distributed systems using AWS, MySQL, and Kubernetes.
• Bachelor's degree in a related field or equivalent practical experience.

Responsibilities

• Own and deliver quarterly goals by leading engineers through complex, open-ended problems.
• Design scalable backend solutions and APIs for enterprise merchants.
• Collaborate with product, design, and analytics teams to build integrated solutions.

Skills

Backend Development

Python

Kotlin

Distributed Systems

API Design

System Architecture

Code Review

Technical Planning

Scalability

Education

Bachelor's degree in a related field or equivalent practical experience

Tools

AWS

MySQL

Kubernetes

Job description

Affirm is seeking an experienced backend engineering leader to own quarterly goals and guide engineers through complex, open‑ended problems while designing scalable backend solutions for enterprise merchants.

You will collaborate with product, design, and analytics teams to build APIs and integrated solutions, using Python or Kotlin and technologies like AWS, MySQL, and Kubernetes to deliver reliable systems.