Sr SWE, Fraud Science Data Platform

Responsibilities

• Essential responsibilities
• Delivers complete solutions spanning all phases of the Software Development Lifecycle (SDLC) (design, implementation, testing, delivery and operations), based on definitions from more senior roles.
• Advises immediate management on project-level issues
• Guides junior engineers
• Operates with little day-to-day supervision, making technical decisions based on knowledge of internal conventions and industry best practices
• Applies knowledge of technical best practices in making decisions
• Additional responsibilities
• Design, implement, and optimize software for processing large-scale graphs, with careful attention to algorithmic complexity, memory usage, and performance trade-offs.
• Leverage graph algorithms and libraries - traversal, connected components, community detection, clustering, path ranking, and related techniques - to address fraud-linking problems.
• Work with existing fraud-linking systems and supplement them with new capabilities, improved algorithms, reusable modules, and better tooling.
• Translate fraud patterns, investigative findings, and te

Requirements

• 3+ years relevant experience and a Bachelor's degree OR Any equivalent combination of education and experience.
• Additional Responsibilities & Preferred Qualifications :

Benefits

Additional Information

The Company PayPal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, PayPal empowers consumers and businesses in approximately 200 markets to join and thrive in the global economy. We operate a global, two-sided network at scale that connects hundreds of millions of merchants and consumers. We help merchants and consumers connect, transact, and complete payments, whether they are online or in person. PayPal is more than a connection to third-party payment networks. We provide proprietary payment solutions accepted by merchants that enable the completion of payments on our platform on behalf of our customers. We offer our customers the flexibility to use their accounts to purchase and receive payments for goods and services, as well as the ability to transfer and withdraw funds. We enable consumers to exchange funds more safely with merchants using a variety of funding sources, which may include a bank account, a PayPal or Venmo account balance, PayPal and Venmo branded credit products, a credit card, a debit card, certain cryptocurrencies, or other stored value products such as gift cards, and eligible credit card rewards. Our PayPal, Venmo, and Xoom products also make it safer and simpler for friends and family to transfer funds to each other. We offer merchants an end-to-end payments solution that provides authorization and settlement capabilities, as well as instant access to funds and payouts. We also help merchants connect with their customers, process exchanges and returns, and manage risk. We enable consumers to engage in cross-border shopping and merchants to extend their global reach while reducing the complexity and friction involved in enabling cross-border trade. Our beliefs are the foundation for how we conduct business every day. We live each day guided by our core values of Inclusion, Innovation, Collaboration, and Wellness. Together, our values ensure that we work together as one global team with our customers at the center of everything we do - and they push us to ensure we take care of ourselves, each other, and our communities. Job Summary: The Fraud Science & Intelligence (FSI) team at PayPal builds the data and intelligence platforms that safeguard our customers and enable risk, compliance, and financial crime detection at global scale. We combine advanced data engineering, applied ML, and threat intelligence to uncover and disrupt sophisticated criminal networks operating globally. As a Senior Software Engineer, you will be responsible for developing, maintaining, and optimizing the SQL pipelines that power our fraud feature store and account linking intelligence systems. You will work on production-grade data transformations in BigQuery, manage job scheduling and orchestration, and drive significant performance improvements to reduce runtime execution costs. This role is ideal for an engineer who loves building efficient, maintainable SQL pipelines and wants to see their work directly impact fraud detection across PayPal's platform. Job Description: Essential Responsibilities: Delivers complete solutions spanning all phases of the Software Development Lifecycle (SDLC) (design, implementation, testing, delivery and operations), based on definitions from more senior roles. Advises immediate management on project-level issues Guides junior engineers Operates with little day-to-day supervision, making technical decisions based on knowledge of internal conventions and industry best practices Applies knowledge of technical best practices in making decisions

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