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Senior Staff Software Engineer (Reliability)

Remote, USA Full-time Posted 2026-06-17

Description: • Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest • Join us to accelerate and ensure the resilience of Affirm’s ecosystem of honest financial products! We are looking for a Senior Staff Software Engineer to build and evangelize Reliability practices throughout Affirm’s Infrastructure team and beyond. • Reliability Engineering at Affirm is a small yet crucial team, building out the SRE Central Model that creates reliability best practices, tooling, frameworks, and then drives their adoption across Affirm. • Our Vision is to enable all teams to “operate what they own” with excellence, while providing white-glove support for critical services that deliver our most impactful products to Affirm’s customers. Requirements: • 10+ years of software development experience, including at least one of the following: Python, Kotlin, Rust, Java, C++, GoLang •... Expertise in synthesizing complex technical requirements, designs, trade-offs, and capabilities into clear decisions, and influence product direction • Ability to communicate decisions and practices to the engineering organization effectively • At least 5+ years of experience in at least two different SRE organizational structures • At least 5+ years of experience of hands-on work in infrastructure and scaling distributed systems • At least 5+ years of technical leadership on SWE and Reliability teams focussed on infrastructure, reliability, and software engineering at scale • Strong hands-on experience with k8s and AWS in a production environment • Experience in encouraging a strong engineering culture and improving reliability in a growing company, including the ability to work closely with other senior and staff engineers to drive change • Track record of successfully mentoring and developing technical leaders • Deep knowledge of incident management, post-incident review, and incident analysis • Expertise in developing and implementing effective Service Level Indicators (SLIs) and Service Level Objectives (SLOs) • This position requires either equivalent practical experience or a Bachelor’s degree in a related field. Benefits: • Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents • Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses • Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge • ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount Apply Job!

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