Senior Backend Engineer - APIs (Remote, Equity)

Affirm; San Francisco (CA); Remote; USD 195,000 - 255,000; Full time

Benefits offered by this job

Health coverage

Stipends

Time off

ESPP

Job summary

Affirm is hiring a Software Engineer for the Partner Merchant Interfaces - Integration team within Decisions Foundations. You will contribute to backend APIs used by partners and power top integrations, including projects for major partners like Amazon and Stripe.

You will work on scalable backend systems, design robust components, and participate in code reviews while collaborating with a global engineering team. This remote-first role may involve occasional in-person onboarding.

Qualifications

• Experience designing, developing and launching backend systems at scale.
• Proficient in Python or Kotlin.
• Strong understanding of distributed systems and related tech stacks.

Responsibilities

• Collaborate with team to deliver backend features that align with business goals.
• Review code and provide feedback to peers; maintain high quality and test coverage.
• Balance speed and reliability to minimize downtime while shipping value.
• Engage with stakeholders to communicate risks and trade-offs clearly.

Skills

Backend development

Python

Kotlin

Distributed systems

Code reviews

Education

Bachelor's degree or equivalent practical experience

Tools

AWS

MySQL

Kubernetes

Job description

Affirm is hiring a Software Engineer for the Partner Merchant Interfaces - Integration team within Decisions Foundations. You will contribute to backend APIs used by partners and power top integrations, including projects for major partners like Amazon and Stripe.

You will work on scalable backend systems, design robust components, and participate in code reviews while collaborating with a global engineering team. This remote-first role may involve occasional in-person onboarding.