Senior Software Engineer, Back-end (Fraud)

Affirm, a company revolutionizing the credit industry with honest and friendly buy-now-pay-later solutions, is seeking a Senior Software Engineer to join their Fraud Engineering organization. This remote position, based in Poland, focuses on building critical fraud prevention systems that protect Affirm, its buyers, and merchants. The role involves working with Python and Kotlin in a microservice architecture, designing scalable backend services, and collaborating with teams across North America.

The position offers an exciting opportunity to work on complex fraud prevention systems while partnering with diverse stakeholders in Product, Compliance, Machine Learning, and Fraud Operations. You'll be responsible for leading technical initiatives, mentoring team members, and maintaining high-quality standards in a distributed team environment. The role requires strong expertise in backend development, distributed systems, and database technologies, with the ability to navigate complex technical challenges in a fintech context.

This is an excellent opportunity for experienced engineers who want to make a significant impact in the fintech space while working with modern technologies and practices. The position offers comprehensive benefits, including fully covered medical insurance, flexible spending wallets, and various lifestyle benefits. The compensation is competitive, with a base salary range of 301,000 - 401,000 PLN per year, plus equity opportunities.

Working at Affirm means joining a remote-first culture that values technical excellence, collaborative problem-solving, and maintaining high engineering standards. You'll be part of a team that's building the future of financial technology while ensuring security and fraud prevention at scale.