Senior Software Engineer – Comms Platform

Affirm

full-time

Posted on: 9/9/2025

Origin: • 🇵🇱 Poland

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Senior

AWSDistributed SystemsKotlinKubernetesMySQLPythonSwift

About the role

Own and deliver quarterly goals for your team, leading engineers through ambiguity to solve open-ended problems
Support peers and stakeholders in product development lifecycle; collaborate with product management, design & analytics; participate in ideation; articulate technical constraints; partner on decisions considering risks and trade-offs
Proactively identify project, process, technology or business issues and lead in solving them
Support operations and availability by creating and monitoring metrics, escalating when needed, and supporting on-call efforts
Foster a culture of quality and ownership by setting/improving code review and design standards and advocating beyond your team
Help develop talent by providing feedback and guidance, and leading by example

5+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin
Track record of developing highly available distributed systems using AWS, MySQL and Kubernetes
Experience defining a technical plan for delivery of significant feature or system component with elegant, simple and extensible design
Ability to write high quality code that is easily understood and used by others
Proficiency at making significant changes in a large code base, with tools and practices to do so safely
Takes ownership of growth; proactively seeks feedback
Strong verbal and written communication skills for global collaboration
Requires either equivalent practical experience or a Bachelor’s degree in a related field