Senior Software Engineer

Summary

Join Affirm's Infrastructure Platform Engineering team as a Senior Software Engineer and contribute to the reliability, availability, and operational efficiency of our distributed systems. This role involves working in a highly scalable, cloud-native environment, focusing on incident response, observability, automation, and system resilience. You will own and deliver quarterly goals, lead engineers, and collaborate with stakeholders throughout the product development lifecycle. Proactive identification and resolution of issues, support of operational availability, and fostering a culture of quality and ownership are key responsibilities. You will also help develop team talent and participate in on-call rotation. This position offers the opportunity to contribute to a rapidly scaling platform and ensure its resilience across multiple regions.

Requirements

• You have a total of 5+ years of experience as a software engineer
• You are experienced in designing, developing and launching backend systems at scale technologies like Python, Kotlin, AWS, MySQL, and Kubernetes
• You have 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
• You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design
• You 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
• You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely
• Partner closely with Storage & Replication, Cloud, CI/CD, and Security teams to ensure Affirm’s infrastructure meets high operational standards
• Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders
• You have strong verbal and written communication skills that support effective collaboration with our global engineering team

Responsibilities

• You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery
• You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs
• You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them
• You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts
• You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks
• You will help develop talent on your team by providing feedback and guidance, and leading by example
• On-Call Rotation - There would be an on-call rotation for this role as a requirement

Benefits

• Flexible Spending Wallets for tech, food and lifestyle
• Away Days - wellness days to take off work and recharge
• Learning & Development programs
• Parental leave
• Employee Resource & Community Groups
• 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