Senior Software Engineer, Backend

Summary

Join Affirm's Streaming team and help reinvent credit! As a key member, you will own and deliver quarterly goals, lead engineers, and ensure team support. Collaborate with product, design, and analytics teams throughout the product lifecycle, proactively identifying and solving issues. Support operations, create and monitor metrics, and foster a culture of quality and ownership. Develop team talent through feedback and guidance. This role demands deep expertise in stream processing and a passion for building scalable data infrastructure.

Requirements

• 5+ years of industry experience in building large scale production systems
• Strong hands on experience with Apache Kafka for large-scale event streaming and message queueing
• Experience building and operating robust and highly available infrastructure
• Experience working with Apache Iceberg and data platforms like Snowflake, Glue or Databricks
• Expertise with at least one stream processing frameworks like Spark, Samza, Flink, Beam etc
• Solid programming skills in Python, Java or Kotlin
• This position requires either equivalent practical experience or a Bachelor’s degree in a related field

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

Preferred Qualifications

• Experience with Apache Iceberg table format, CDC (Change Data Capture) tools is a strong plus
• Knowledge of Relational and NoSQL databases is a plus
• Experience leading technical projects and mentoring junior engineers
• 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
• 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
• 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

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