Senior Backend Engineer - Remote, Scale-Driven APIs

Affirm; St. Louis (MO); Remote; USD 173,000 - 255,000; Full time

Benefits offered by this job

Health coverage

Equity program

Tech stipends

Generous time off

Job summary

Affirm is hiring for a Senior Backend Engineer to own and deliver quarterly goals, guiding engineers through ambiguity while delivering scalable backend systems. You will partner with product, design and analytics to explore trade-offs, define technical plans and ensure quality across a global team.

The role emphasizes ownership, strong communication, and the ability to influence architecture and delivery. Candidates should have 4+ years of backend experience and a Bachelor’s degree or

Qualifications

• 4+ years of experience designing, developing and launching backend systems at scale.
• Experience with Python or Kotlin and building highly available distributed systems.
• Define a technical plan for delivering a significant feature with simple, extensible design.
• Write high-quality code that is easily understood and used by others.
• Take ownership of growth, seek feedback from team, manager and stakeholders.
• Strong verbal and written communication to collaborate with a global team.
• Bachelor’s degree or equivalent practical experience.

Responsibilities

• Own and deliver quarterly goals for your team and guide engineers through ambiguity.
• Collaborate with product, design and analytics in ideation and trade-off decisions.
• Identify issues and lead efforts to resolve them.
• Maintain operations and on-call readiness by monitoring metrics.
• Set and promote code review and design standards across the team.
• Mentor team members and lead by example.

Skills

Backend design

Python/Kotlin

AWS

MySQL

Kubernetes

Distributed systems

Code quality

Ownership

Communication

Education

Bachelor's degree or equivalent practical experience

Tools

AWS

MySQL

Kubernetes

Job description

Affirm is hiring for a Senior Backend Engineer to own and deliver quarterly goals, guiding engineers through ambiguity while delivering scalable backend systems. You will partner with product, design and analytics to explore trade-offs, define technical plans and ensure quality across a global team.

The role emphasizes ownership, strong communication, and the ability to influence architecture and delivery. Candidates should have 4+ years of backend experience and a Bachelor’s degree or