Affirm

Senior Software Engineer, Backend – Platform Reliability

Affirm

full-time

Posted on:

Origin:  • 🇪🇸 Spain

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Salary

💰 €85,000 - €115,000 per year

Job Level

Senior

Tech Stack

AWSCloudDistributed SystemsKotlinKubernetesMySQLPythonReactVue.js

About the role

  • Ensure the reliability, availability, and operational efficiency of Affirm’s distributed systems.
  • Work on incident response, observability, automation, and system resilience in cloud-native environments.
  • Own and deliver quarterly goals for your team, leading engineers through ambiguity to solve open-ended problems.
  • Support product development lifecycle by collaborating with product management, design, and analytics.
  • 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 or improving code review and design standards and advocating beyond your team.
  • Help develop talent on your team by providing feedback and guidance and leading by example.
  • Participate in on-call rotation as a requirement.

Requirements

  • You have a total of 5+ years of experience as a software engineer.
  • Experienced in designing, developing and launching backend systems at scale technologies like Python, Kotlin, AWS, MySQL.
  • Leverage Kubernetes expertise for cloud compute orchestration and troubleshoot.
  • Comprehensive traffic management to ensure scalable, reliable, and high-performance platform operations (specially for AWS environment).
  • Experience shipping web apps using declarative UI frameworks like React or Vue.
  • Ensure high availability (HA) and resilience of critical services through runbooks, incident response strategies, and post-mortem analysis.
  • Partner with Observability and Reliability teams to proactively detect and mitigate potential outages.
  • Experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design.
  • Write high quality code that is easily understood and used by others.
  • Automate operational tasks, deployments, failover processes, and scaling strategies to reduce manual intervention.
  • Proficient at making significant changes in a large code base and have developed tools and practices that enable safe changes.
  • Partner closely with Storage & Replication, Cloud, CI/CD, and Security teams to ensure high operational standards.
  • Strong verbal and written communication skills that support effective collaboration with our global engineering team.