Senior Software Engineer, Back-end – Fraud

🔥 12 hours ago

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Affirm

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2012

💳 Fintech

👥 B2C

🛍️ eCommerce

💰 Post-IPO Equity on 2021-01

Fintech • B2C • eCommerce

Affirm is a financial technology company that offers a 'Buy Now, Pay Later' service, allowing consumers to make purchases and pay for them over time with flexible payment plans. Affirm eliminates hidden fees and compound interest, providing clear terms and conditions for its users. The company also offers the Affirm Card, a debit card that allows users to request to pay over time for larger purchases or pay in full for smaller ones. Affirm partners with various retailers across multiple categories, including electronics, apparel, and travel, providing customers with the convenience of paying over time at checkout both online and in physical stores. Affirm's services are integrated with Apple Pay, enabling customers to make payments seamlessly from their iPhone or iPad.

📋 Description

• Own and deliver quarterly goals for your team, leading engineers through ambiguity. • Design and implement real-time fraud decisioning services and APIs in Python or Kotlin. • Build and evolve the platform to launch fraud decisioning in a new country quickly. • Integrate region-specific fraud and risk vendors and operationalize machine learning and AI signals. • Support peers and stakeholders across the product development lifecycle. • Monitor metrics and contribute to keep-the-lights-on and on-call efforts. • Foster a culture of quality and ownership within the team.

🎯 Requirements

• 5+ years of experience building backend systems at scale using Python or Kotlin. • Experience with distributed systems and infrastructure using AWS, MySQL/PostgreSQL, and Kubernetes. • Strong system design skills and a track record of delivering maintainable, extensible services. • Fluency with AI-driven engineering. • Proficiency in SQL and working with data-rich environments. • Familiarity with CI/CD practices and safe production deployments. • Strong written and verbal communication skills, especially in distributed teams. • A proactive, ownership-driven mindset with a focus on learning and team success. • Experience with Snowflake, dbt, Airflow, or Chronosphere (nice to have) • Background in fraud prevention, risk systems, or real-time decisioning (nice to have) • Experience building for multiple markets or regions - internationalization or localization (nice to have) • Experience working in the fintech sector or other highly regulated environments (nice to have).

🏖️ Benefits

• 100% subsidized medical coverage, dental and vision for you and your dependents • Flexible Spending Wallets for tech, food and lifestyle • Away Days - wellness days to take off work and recharge • Learning & Development programs • Parental benefits • Employee Resource & Community Groups